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Maintenance Manual MM-1719 Anti-Lock Braking System (ABS) and Electronic Stability Control (ESC) For Modular Braking System Platform (mBSP TM ) Version ECUs 12-Volt Systems Issued 06-17

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Page 1: Maintenance Manual MM-1719 Anti-Lock Braking System · PDF fileMaintenance Manual MM-1719 Anti-Lock Braking System (ABS) and Electronic Stability Control (ESC) For Modular Braking

Maintenance Manual MM-1719

Anti-Lock Braking System (ABS) and Electronic Stability Control (ESC)For Modular Braking System Platform (mBSPTM) Version ECUs12-Volt SystemsIssued 06-17

Page 2: Maintenance Manual MM-1719 Anti-Lock Braking System · PDF fileMaintenance Manual MM-1719 Anti-Lock Braking System (ABS) and Electronic Stability Control (ESC) For Modular Braking

Service Notes

Information contained in this publication was in effect at the time the publication was approved for printing and is subject to change without notice or liability. Meritor WABCO reserves the right to revise the information presented or to discontinue the production of parts described at any time.

Meritor WABCO Maintenance Manual MM-1719 (Issued 06-17)

About This ManualThis manual provides maintenance procedures for Meritor WABCO’s Anti-Lock Braking System (ABS), Electronic Stability Control (ESC) and Hill Start Aid (HSA) using Modular Braking System Platform (mBSPTM) version ECUs.

Before You Begin1. Read and understand all instructions and procedures before

you begin to service components.

2. Read and observe all Warning and Caution hazard alert messages in this publication. They provide information that can help prevent serious personal injury, damage to components, or both.

3. Follow your company’s maintenance and service, installation, and diagnostics guidelines.

4. Use special tools when required to help avoid serious personal injury and damage to components.

Hazard Alert Messages and Torque SymbolsRead and observe all Warning and Caution hazard alert messages in this publication. They provide information that can help prevent serious personal injury, damage to components, or both.

WARNINGA Warning alerts you to an instruction or procedure that you must follow exactly to avoid serious personal injury and damage to components.

CAUTIONA Caution alerts you to an instruction or procedure that you must follow exactly to avoid damage to components.

@ This symbol alerts you to tighten fasteners to a specified torque value.

WARNINGTo prevent serious personal injury, always wear safe eye protection when you perform vehicle maintenance or service.

Release all air from the air systems before you remove any components. Pressurized air can cause serious personal injury.

CAUTIONWhen welding on an ABS- or ABS/ATC/HSA/ESC-equipped vehicle is necessary, disconnect the power connector from the ECU to prevent damage to the electrical system and ABS/ATC components.

How to Obtain Additional Maintenance, Service and Product InformationVisit Literature on Demand at meritor.com to access and order additional information.

Contact the Meritor OnTrac™ Customer Call Center at 866-668-7221 (United States and Canada); 001-800-889-1834 (Mexico); or email [email protected].

If Tools and Supplies are Specified in This ManualContact Meritor’s Commercial Vehicle Aftermarket at 888-725-9355.

Page 3: Maintenance Manual MM-1719 Anti-Lock Braking System · PDF fileMaintenance Manual MM-1719 Anti-Lock Braking System (ABS) and Electronic Stability Control (ESC) For Modular Braking

Contents

pg. pg.i Asbestos and Non-Asbestos Fibers1 Section 1: Introduction

ContentsAnti-Lock Braking System (ABS)System ComponentsElectronic Control Unit (ECU)Wheel Speed Sensing SystemsPressure Modulator Valves

2 Active Braking Valves (ABV)3 Foot Brake Valve (FBV)

Steering Angle Sensor (SAS)Electronic Stability Control (ESC) ModuleTrailer Modulator ValveOff-Road ABS SwitchATC Switch

4 Section 2: Stability and Safety Enhancement SystemsAutomatic Traction Control (ATC)ATC ComponentsATC SwitchElectronic Stability Control (ESC)ESC ComponentsHill Start Aid (HSA)HSA ComponentsDrag Torque Control

5 Section 3: Diagnostics, Troubleshooting and TestingMaintenance InformationTOOLBOX™ Software Diagnostics

7 TestingWheel Speed Sensor Testing

9 Modulator Valve Testing10 ABV Testing

ESC CAN Network TestingESC Module TestingESC Module MountingSAS

11 Section 4: Wiring Diagrams and ConnectorsmBSPTM ABS ECU Wiring Diagram

12 Harness Connectors

16 Section 5: SPN FMI Fault CodesDTC SPN FMI Tables

Page 4: Maintenance Manual MM-1719 Anti-Lock Braking System · PDF fileMaintenance Manual MM-1719 Anti-Lock Braking System (ABS) and Electronic Stability Control (ESC) For Modular Braking

Asbestos and Non-Asbestos Fibers

i Meritor WABCO Maintenance Manual MM-1719 (Issued 06-17)

ASBESTOS FIBERS WARNING The following procedures for servicing brakes are recommended to reduce exposure to asbestos fiber dust, a cancer and lung disease hazard. Material Safety Data Sheets are available from Meritor.

Hazard SummaryBecause some brake linings contain asbestos, workers who service brakes must understand the potential hazards of asbestos and precautions for reducing risks. Exposure to airborne asbestos dust can cause serious and possibly fatal diseases, including asbestosis (a chronic lung disease) and cancer, principally lung cancer and mesothelioma (a cancer of the lining of the chest or abdominal cavities). Some studies show that the risk of lung cancer among persons who smoke and who are exposed to asbestos is much greater than the risk for non-smokers. Symptoms of these diseases may not become apparent for 15, 20 or more years after the first exposure to asbestos.

Accordingly, workers must use caution to avoid creating and breathing dust when servicing brakes. Specific recommended work practices for reducing exposure to asbestos dust follow. Consult your employer for more details.

Recommended Work Practices1. Separate Work Areas. Whenever feasible, service brakes in a separate area away from other operations to reduce risks to unprotected persons. OSHA has set a maximum allowable level of exposure for asbestos of 0.1 f/cc as an 8-hour time-weighted average and 1.0 f/cc averaged over a 30-minute period. Scientists disagree, however, to what extent adherence to the maximum allowable exposure levels will eliminate the risk of disease that can result from inhaling asbestos dust. OSHA requires that the following sign be posted at the entrance to areas where exposures exceed either of the maximum allowable levels:

DANGER: ASBESTOSCANCER AND LUNG DISEASE HAZARD

AUTHORIZED PERSONNEL ONLYRESPIRATORS AND PROTECTIVE CLOTHING

ARE REQUIRED IN THIS AREA. 2. Respiratory Protection. Wear a respirator equipped with a high-efficiency (HEPA) filter approved by NIOSH or MSHA for use with asbestos at all times when servicing brakes, beginning with the removal of the wheels.3. Procedures for Servicing Brakes.a. Enclose the brake assembly within a negative pressure enclosure. The enclosure should be

equipped with a HEPA vacuum and worker arm sleeves. With the enclosure in place, use the HEPA vacuum to loosen and vacuum residue from the brake parts.

b. As an alternative procedure, use a catch basin with water and a biodegradable, non-phosphate, water-based detergent to wash the brake drum or rotor and other brake parts. The solution should be applied with low pressure to prevent dust from becoming airborne. Allow the solution to flow between the brake drum and the brake support or the brake rotor and caliper. The wheel hub and brake assembly components should be thoroughly wetted to suppress dust before the brake shoes or brake pads are removed. Wipe the brake parts clean with a cloth.

c. If an enclosed vacuum system or brake washing equipment is not available, employers may adopt their own written procedures for servicing brakes, provided that the exposure levels associated with the employer’s procedures do not exceed the levels associated with the enclosed vacuum system or brake washing equipment. Consult OSHA regulations for more details.

d. Wear a respirator equipped with a HEPA filter approved by NIOSH or MSHA for use with asbestos when grinding or machining brake linings. In addition, do such work in an area with a local exhaust ventilation system equipped with a HEPA filter.

e. NEVER use compressed air by itself, dry brushing, or a vacuum not equipped with a HEPA filter when cleaning brake parts or assemblies. NEVER use carcinogenic solvents, flammable solvents, or solvents that can damage brake components as wetting agents.

4. Cleaning Work Areas. Clean work areas with a vacuum equipped with a HEPA filter or by wet wiping. NEVER use compressed air or dry sweeping to clean work areas. When you empty vacuum cleaners and handle used rags, wear a respirator equipped with a HEPA filter approved by NIOSH or MSHA for use with asbestos. When you replace a HEPA filter, wet the filter with a fine mist of water and dispose of the used filter with care.5. Worker Clean-Up. After servicing brakes, wash your hands before you eat, drink or smoke. Shower after work. Do not wear work clothes home. Use a vacuum equipped with a HEPA filter to vacuum work clothes after they are worn. Launder them separately. Do not shake or use compressed air to remove dust from work clothes.6. Waste Disposal. Dispose of discarded linings, used rags, cloths and HEPA filters with care, such as in sealed plastic bags. Consult applicable EPA, state and local regulations on waste disposal.

Regulatory GuidanceReferences to OSHA, NIOSH, MSHA, and EPA, which are regulatory agencies in the United States, are made to provide further guidance to employers and workers employed within the United States. Employers and workers employed outside of the United States should consult the regulations that apply to them for further guidance.

NON-ASBESTOS FIBERS WARNING The following procedures for servicing brakes are recommended to reduce exposure to non-asbestos fiber dust, a cancer and lung disease hazard. Material Safety Data Sheets are available from Meritor.

Hazard SummaryMost recently manufactured brake linings do not contain asbestos fibers. These brake linings may contain one or more of a variety of ingredients, including glass fibers, mineral wool, aramid fibers, ceramic fibers and silica that can present health risks if inhaled. Scientists disagree on the extent of the risks from exposure to these substances. Nonetheless, exposure to silica dust can cause silicosis, a non-cancerous lung disease. Silicosis gradually reduces lung capacity and efficiency and can result in serious breathing difficulty. Some scientists believe other types of non-asbestos fibers, when inhaled, can cause similar diseases of the lung. In addition, silica dust and ceramic fiber dust are known to the State of California to cause lung cancer. U.S. and international agencies have also determined that dust from mineral wool, ceramic fibers and silica are potential causes of cancer.

Accordingly, workers must use caution to avoid creating and breathing dust when servicing brakes. Specific recommended work practices for reducing exposure to non-asbestos dust follow. Consult your employer for more details.

Recommended Work Practices1. Separate Work Areas. Whenever feasible, service brakes in a separate area away from other operations to reduce risks to unprotected persons.

2. Respiratory Protection. OSHA has set a maximum allowable level of exposure for silica of 0.1 mg/m3 as an 8-hour time-weighted average. Some manufacturers of non-asbestos brake linings recommend that exposures to other ingredients found in non-asbestos brake linings be kept below 1.0 f/cc as an 8-hour time-weighted average. Scientists disagree, however, to what extent adherence to these maximum allowable exposure levels will eliminate the risk of disease that can result from inhaling non-asbestos dust.

Therefore, wear respiratory protection at all times during brake servicing, beginning with the removal of the wheels. Wear a respirator equipped with a high-efficiency (HEPA) filter approved by NIOSH or MSHA, if the exposure levels may exceed OSHA or manufacturers’ recommended maximum levels. Even when exposures are expected to be within the maximum allowable levels, wearing such a respirator at all times during brake servicing will help minimize exposure.

3. Procedures for Servicing Brakes.

a. Enclose the brake assembly within a negative pressure enclosure. The enclosure should be equipped with a HEPA vacuum and worker arm sleeves. With the enclosure in place, use the HEPA vacuum to loosen and vacuum residue from the brake parts.

b. As an alternative procedure, use a catch basin with water and a biodegradable, non-phosphate, water-based detergent to wash the brake drum or rotor and other brake parts. The solution should be applied with low pressure to prevent dust from becoming airborne. Allow the solution to flow between the brake drum and the brake support or the brake rotor and caliper. The wheel hub and brake assembly components should be thoroughly wetted to suppress dust before the brake shoes or brake pads are removed. Wipe the brake parts clean with a cloth.

c. If an enclosed vacuum system or brake washing equipment is not available, carefully clean the brake parts in the open air. Wet the parts with a solution applied with a pump-spray bottle that creates a fine mist. Use a solution containing water, and, if available, a biodegradable, non-phosphate, water-based detergent. The wheel hub and brake assembly components should be thoroughly wetted to suppress dust before the brake shoes or brake pads are removed. Wipe the brake parts clean with a cloth.

d. Wear a respirator equipped with a HEPA filter approved by NIOSH or MSHA when grinding or machining brake linings. In addition, do such work in an area with a local exhaust ventilation system equipped with a HEPA filter.

e. NEVER use compressed air by itself, dry brushing, or a vacuum not equipped with a HEPA filter when cleaning brake parts or assemblies. NEVER use carcinogenic solvents, flammable solvents, or solvents that can damage brake components as wetting agents.

4. Cleaning Work Areas. Clean work areas with a vacuum equipped with a HEPA filter or by wet wiping. NEVER use compressed air or dry sweeping to clean work areas. When you empty vacuum cleaners and handle used rags, wear a respirator equipped with a HEPA filter approved by NIOSH or MSHA, to minimize exposure. When you replace a HEPA filter, wet the filter with a fine mist of water and dispose of the used filter with care.

5. Worker Clean-Up. After servicing brakes, wash your hands before you eat, drink or smoke. Shower after work. Do not wear work clothes home. Use a vacuum equipped with a HEPA filter to vacuum work clothes after they are worn. Launder them separately. Do not shake or use compressed air to remove dust from work clothes.

6. Waste Disposal. Dispose of discarded linings, used rags, cloths and HEPA filters with care, such as in sealed plastic bags. Consult applicable EPA, state and local regulations on waste disposal.

Regulatory GuidanceReferences to OSHA, NIOSH, MSHA, and EPA, which are regulatory agencies in the United States, are made to provide further guidance to employers and workers employed within the United States. Employers and workers employed outside of the United States should consult the regulations that apply to them for further guidance.

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1 Introduction

1Meritor WABCO Maintenance Manual MM-1719 (Issued 06-17)

1 IntroductionContentsThis manual contains service information for the following systems.

� Meritor WABCO mBSPTM anti-lock braking system (ABS)

� Automatic traction control (ATC)

� Electronic stability control (ESC) for trucks, tractors and buses

The ABS version is marked on the ECU. Figure 1.1. If you cannot identify the ECU version installed on your vehicle, contact Meritor WABCO OnTrac at 866-OnTrac1 (668-7221).

Figure 1.1

Anti-Lock Braking System (ABS)ABS is a system designed to provide and maintain the best possible traction and steering control during an extreme braking event. During a potential wheel lock event, the ABS ECU, using information provided by the wheel speed sensors, sends a signal(s) to the appropriate modulator valve(s) to hold, apply or release the brakes as needed. ABS works automatically. The driver does not have to select this feature.

System Components

Electronic Control Unit (ECU)The ECU is the control center or “brain” of the ABS, ATC and ESC systems. It receives information from the sensors and CAN data link, processes data and sends signals to modulators and active braking valves to achieve different tasks.

Wheel Speed Sensing SystemsWheel speed sensing systems consist of a tooth wheel mounted on the hub or rotor of each monitored wheel and a speed sensor installed with its end against the tooth wheel. The sensor continuously sends wheel speed information to the ECU. A sensor clip holds the sensor in place and against the tooth wheel. Figure 1.2.

Figure 1.2

Pressure Modulator ValvesA modulator valve controls air pressure to an affected wheel-end brake during an ABS or ESC event to reduce speed and prevent wheel lock-up. Modulator valves are also used during ATC events to correctly gain traction on the affected wheel end.

A modulator valve is usually located on a frame rail or cross member near the brake chamber or as part of a valve package. A valve package combines two modulator valves, a service relay or quick release valve, and depending on the vehicle configuration, an active braking valve (ABV). Figure 1.3, Figure 1.4, Figure 1.5 and Figure 1.6.

Figure 1.1

4013279a

Figure 1.2

1002009bSENSOR

CLIP

SENSOR

TOOTHWHEEL

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1 Introduction

2 Meritor WABCO Maintenance Manual MM-1719 (Issued 06-17)

Figure 1.3

Figure 1.4

Figure 1.5

Figure 1.6

Active Braking Valves (ABV)Two active braking valves (ABV), sometimes referred to as 3/2 valve, are solenoid valves which are integrated into the valve packages and are used to produce active braking during ATC or ESC events. Depending on the mBSPTM system configuration, ABVs can be located in the front axle braking system and rear axle braking system.

Figure 1.3

Figure 1.4

4013097a

FRONT AXLE VALVE PACKAGEPART NUMBER 976 200 100 0 AND 976 200 101 0

4013100a

REAR VALVE PACKAGEPART NUMBERS 976 000 120 0, 976 000 107 0

AND 976 000 112 0

Figure 1.5

Figure 1.6

4013101a

REAR VALVE PACKAGEPART NUMBERS 976 000 121 0, 976 000 103 0,

976 000 105 0 AND 976 000 110 0

4013102a

SOLENOID MODULATOR VALVEPART NUMBER 472 196 025 0

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1 Introduction

3Meritor WABCO Maintenance Manual MM-1719 (Issued 06-17)

Foot Brake Valve (FBV)The foot brake valve (FBV) is part of the mBSPTM brake system. It provides the system with the driver’s brake demand. The FBV generates the electrical and pneumatic signals required for the control of a pneumatic braking system. Normally, the FBV is actuated by a foot pedal assembly. Figure 1.7.

Figure 1.7

Steering Angle Sensor (SAS)The SAS is part of the mBSPTM ESC system. The SAS delivers the driver’s steering input (steering wheel position) to the ECU using the vehicle chassis CAN communication data link. The SAS is provided by the vehicle manufacturer.

Electronic Stability Control (ESC) ModuleThe ESC module is part of the mBSPTM ESC system. It measures the vehicle yaw rate as well as vehicle lateral acceleration. It exchanges data with the ECU via the ESC system internal data link. The ECU supplies the module with voltage and ground. The ESC module must be initialized by diagnostic tools whenever the ECU or the ESC module is replaced. Figure 1.8.

Figure 1.8

Trailer Modulator ValveFor some stability control applications, an additional modulator valve (the same as what is used for ABS modulation) will be located in the trailer control line downstream of the front axle ABV which is also used to control the trailer.

Off-Road ABS SwitchOn some vehicles, an off-road ABS switch can be included. The off-road ABS function improves vehicle control and helps reduce stopping distances in off-road conditions or on poor traction surfaces such as loose gravel, sand and dirt.

ATC SwitchA vehicle manufacturer might offer an ATC switch to control the ATC function. The ATC switch can be configured to momentarily disable ATC.

Figure 1.7

4013104a

FOOT BRAKE VALVE DIGITALPART NUMBER 461 333 008 0

Figure 1.8

4013106a

ESC 6 MODULEPART NUMBER 446 065 080 0

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2 Stability and Safety Enhancement Systems

4 Meritor WABCO Maintenance Manual MM-1719 (Issued 06-17)

2 Stability and Safety Enhancement SystemsAutomatic Traction Control (ATC)ATC is available as an option with mBSPTM ECUs and is standard on most. ATC helps improve traction in low traction road conditions. ATC reduces the potential of jackknifing caused by excessive wheel spin during acceleration or in curves.

ATC ComponentsATC uses the base ABS components plus an active braking valve that can be installed with individual modulator valves, or installed as part of the rear valve package.

When installed with individual modulator valves, the active braking valve is mounted on the frame or cross member, near the rear of the vehicle.

When it is part of the rear valve package, the active braking valve is attached to the relay valve.

ATC SwitchIf the vehicle manufacturer offers an ATC switch to control the ATC functionality, the switch can be configured as an ATC momentary override option. This function allows the driver to momentarily disable/override ATC for the duration of the ignition cycle.

Electronic Stability Control (ESC)Electronic Stability Control (ESC) combines the rollover prevention with directional stability in order to keep the vehicle traveling on its intended path by providing spinout and drift out control. ESC is automatic. It becomes active when the system senses imminent directional or roll instabilities, often before the driver is aware. You will notice a difference in the vehicle when stability control is functioning, but you should continue to drive as normal and provide any additional needed corrections. You may again notice a reduction in engine torque and additional deceleration from the retarder, if so equipped. You also may notice individual or all brakes applying depending on whether the vehicle is in a roll or directional control event.

ESC ComponentsESC is built from the ABS platform and uses many of the same components as ATC. An active braking valve to control the front axle brakes and trailer, a foot brake valve, an ESC module and a Steering Angle Sensor (SAS) are required.

The ESC ECU contains parameter settings which are specific to a vehicle configuration validated by Meritor WABCO Engineering. It is imperative that the correct ECU is installed on your vehicle in service. Contact Meritor WABCO or your respective vehicle OEM with any questions regarding ESC ECU.

Hill Start Aid (HSA)HSA supports select automated manual transmissions in reducing/totally eliminating the rolling back of the vehicle while launching on a grade. When requested from the transmission, HSA holds pressure in the service brakes of all axles of the towing vehicle when the vehicle is standing still. HSA will hold pressure for a maximum of three seconds following full release of the brake pedal.

HSA ComponentsHSA is available with the mBSPTM brake system. Same as ESC, HSA is built from the ABS platform and uses many of the same components as ATC and ESC. HSA uses the front axle active braking valve as well as the rear active braking valve to help maintain the pressure trapped during HSA activation.

The foot brake valve provides the system with the driver’s brake demand. The measured pressure is used by HSA to set the trapped pressure and/or activate the HSA function. The vehicle manufacturer can provide an HSA switch multiplexed through the dashboard or hard wired for momentary HSA deactivation.

Drag Torque ControlThe ABS ECU has the ability to send a message to the engine to increase engine RPM to prevent drive axle lock-up, if the vehicle is on a downhill grade and in the incorrect gear.

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3 Diagnostics, Troubleshooting and Testing

5Meritor WABCO Maintenance Manual MM-1719 (Issued 06-17)

3 Diagnostics, Troubleshooting and TestingMaintenance InformationThere is no regularly scheduled maintenance required for the Meritor WABCO mBSPTM ABS, ATC or ESC systems. However, this does not change current vehicle maintenance requirements.

� Lamp Check: To ensure the ABS tractor lamp is operating, drivers should check the lamp every time the vehicle is started. When the vehicle is started, the ABS lamp should come on momentarily. If it does not come on, it could mean a burned-out bulb.

� ABS Wheel Speed Sensors: Check the wheel speed sensor adjustment and lubricate the sensor and sensor clip whenever wheel-end maintenance is performed. Use only Meritor WABCO-recommended lubricant.

TOOLBOX™ Software DiagnosticsFor complete instructions for installing and using TOOLBOX™ Software, refer to the User Manual posted on meritorwabco.com. Meritor WABCO TOOLBOX™ Software provides computer-based diagnostic capabilities for the complete range of Meritor WABCO Vehicle Control Systems. The program provides the following functions:

� Displays both static (e.g., ECU number) and dynamic (e.g., RPMs) information from the system under test.

� Displays both active and stored system faults, as well as the appropriate repair instructions.

� Activates system components to verify system integrity, correct component operation and installation wiring.

NOTE: For mBSPTM software versions, TOOLBOX™ 12.3 or higher is required.

To display ABS, ESC or HSA faults:

1. Connect the computer to the vehicle:

� Attach the USB/serial cable from your computer’s USB or serial port to the adapter.

� Attach the Deutsch diagnostic cable from the adapter to the vehicle. Figure 3.1.

Figure 3.1

2. Select the TOOLBOX™ Software icon from the desktop or from the Windows Start Menu to display the Main Menu.

3. Adapter Selection

Verify the TOOLBOX™ Software is set for the device and communication protocol that will be used.

To access “Adapter Selection” for TOOLBOX™ Software 11 or newer, click on “Utilities” from the main TOOLBOX™ screen. Figure 3.3.

Make sure the “Vendor:” and “Adapter:” drop-downs are set for the device being used and set the “Protocol:” drop-down to J1939 according to the system you will be communicating through, and click “OK”. Figure 3.2.

Figure 3.2

Figure 3.1

Figure 3.2

4010610a

TO VEHICLEDEUTSCH

CONNECTOR

USB ORSERIAL CABLE

ADAPTER

4013271a

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3 Diagnostics, Troubleshooting and Testing

6 Meritor WABCO Maintenance Manual MM-1719 (Issued 06-17)

NOTE: When switching between J1939 and J1708 communications with TOOLBOX™ Software 11, the vehicle ignition must be cycled between sessions to correctly communicate with the ECU.

NOTE: TOOLBOX™ Software must be connected to the vehicle and the vehicle ignition must be ON in order to display information. If unable to communicate with the ECU:

� Verify device and data link connections are secure.

� Verify the device is RP1210A compliant and that the comport settings (Vendor, Protocol, Adapter) in TOOLBOX™ Software are correct.

� Verify the device software and firmware is up to date.

� Check all the powers and grounds coming to the ECU including load testing.

� Check VMM/chassis CAN circuit at the ECU and the data link connector.

4. Depending on the software version used, there will be two options to communicate with the vehicle:

� If using TOOLBOX™ 11 or higher and a vehicle with Software ECU E4.4b or higher, diagnostics over J1939 communications can be possible. Figure 3.3.

NOTE: mBSPTM software versions will only communicate over VMM/chassis CAN.

Figure 3.3

5. In the Main Menu, select Pneumatic ABS/ST Hydr J1939. The ABS Main Screen will appear. Figure 3.4.

Figure 3.4

6. Select Display from the top menu.

7. From the pull-down menu, select Diagnostic Trouble Codes. This will open the Fault Information screen. Figure 3.5 and Figure 3.6.

Figure 3.5

Figure 3.3

4013272a

Figure 3.4

Figure 3.5

4013273a

4010615a

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3 Diagnostics, Troubleshooting and Testing

7Meritor WABCO Maintenance Manual MM-1719 (Issued 06-17)

Figure 3.6

8. A description of the fault, the number of times the fault occurred, the system identifier (SID), the failure mode (FMI) and Suspect Parameter Number (SPN) are all displayed in the fault information window. Basic repair instructions for each fault are also provided. More detailed information about SID and FMI troubleshooting and repair is provided in the following section as well as the SID FMI table.

Double-clicking on the fault, or clicking on Details, will provide troubleshooting and detailed repair instructions. TOOLBOX™ Software version 11 also provides links to the appropriate system schematic which are also provided in this maintenance manual.

NOTE: If you are using TOOLBOX™ Software version 11, Internet Explorer is required to load files containing repair information, maintenance manual and schematics.

Faults that may occur after the screen is displayed will not appear until screen is manually updated. Use the Update button to refresh the fault information table.

After making the necessary repairs, use the clear faults button to clear the fault. Use the Update button to refresh the fault information table and display the new list of faults. Some faults may require vehicle ignition to be cycled and vehicle speed over 4 mph (6.4 kph) to clear them.

Use the Save or Print button to save or print the fault information data.

NOTE: If the TOOLBOX™ Software is unable to communicate with the ECU, verify the system is self-testing when the key is cycled.

If the system is not self-testing: Check all the powers and grounds connecting to the ECU including load testing.

If the system is self-testing: Check the following.

� Verify the ECU part number.

� Verify device and data link connections are secure.

� Verify the device is RP1210A compliant and that the comport settings (Vendor, Protocol, Adapter) in TOOLBOX™ Software are correct.

� Verify the device software and firmware are up-to-date.

Testing

Wheel Speed Sensor Testing

Sensor Adjustment

� Push the sensor in until it contacts the tooth wheel.

� Do not pry or push sensors with sharp objects.

� Sensors will self-adjust during wheel rotation.

Electrical Checks

� Check wheel speed sensor by itself for resistance.

� Check ECU harness and sensor together for resistance.

� Verify no change in resistance or open circuit between sensor by itself and through harness.

� Check harness by itself for any shorts to battery and shorts to ground.

� Measurements should read as follows:

Figure 3.6

4010616a

Location Measurement

Between sensor leads 900-2000 ohm

At ECU harness pins with sensor connected

Same as above, no more than 1 ohm difference

ECU harness by itself for DC voltage or ground

No continuity

Sensor output voltage At least 0.2 volt AC at 30 rpm

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3 Diagnostics, Troubleshooting and Testing

8 Meritor WABCO Maintenance Manual MM-1719 (Issued 06-17)

Figure 3.7

Table A: X1 Harness Connector

Table B: X2 Harness Connector

Figure 3.7

36 35 34 33 32 31 30 29 28

27 26 25 24 23 22 21 20 19

18 17 16 15 14 13 12 11 10

9 8 7 6 5 4 3 2 1

18 17 16 15 14 13 12 11 10

9 8 7 6 5 4 3 2 1

X1 X2 X3

36 35 34 33 32 31 30 29 28

27 26 25 24 23 22 21 20 19

18 17 16 15 14 13 12 11 10

9 8 7 6 5 4 3 2 1

25 24 23 22 21 20 19

4013121a

mBSPTM ECULOOKING INTO WIRE HARNESS CONNECTORS

Pin Name Function

X1.1 WSS-FAL-L WSS Front Axle left low

X1.2 WSS-FAL-H WSS Front Axle left high

X1.3 ABS-FAL-IV ABS Valve FA left IV

X1.4 ABS-FAL-GND ABS Valve FA left GND

X1.5 ABS-FAL-OV ABS Valve FA left OV

X1.6 SYS-1A-GND ESCM Ground

X1.7 SYS-1A-UB ESCM Power Supply

X1.8 SYS-1A-CANL ESCM CAN-Low

X1.9 SYS-1A-CANH ESCM CAN-High

X1.10 WSS-FAR-L WSS Front Axle right low

X1.11 WSS-FAR-H WSS Front Axle right high

X1.12 ABS-FAR-IV ABS Valve FA right IV

X1.13 ABS-FAR-GND ABS Valve FA right GND

X1.14 ABS-FAR-OV ABS Valve FA right OV

X1.15 FA-ABV [ABV FA] *3

X1.16 FA-ABV-GND [ABV FA GND] *3

X1.17

X1.18

X1.19 WSS-DAL-L WSS Drive Axle left low

X1.20 WSS-DAL-H WSS Drive Axle left high

X1.21 ABS-DAL-IV ABS Valve DA left IV

X1.22 ABS-DAL-GND ABS Valve DA left GND

X1.23 ABS-DAL-OV ABS Valve DA left OV

X1.24 DA-ABV [ABV DA] *3

X1.25 DA-ABV-GND [DAL DA GND] *3

X1.26 TRV-GND [ABV Trailer GND] *3

X1.27 TRV [ABV Trailer] *3

X1.28 WSS-DAR-L WSS Drive Axle right low

X1.29 WSS-DAR-H WSS Drive Axle right high

X1.30 ABS-DAR-IV ABS Valve DA right IV

X1.31 ABS-DAR-GND ABS Valve DA right GND

X1.32 ABS-DAR-OV ABS Valve DA right OV

X1.33 AUX-3 [Trailer Modulator IV] *3

X1.34 AUX-3-GND [Trailer Modulator GND] *3

X1.35 AUX-4-GND [Trailer Modulator GND] *3

X1.36 AUX-4 [Trailer Modulator OV] *3

Pin Name Function

X2.1 VEH-CANL VMM/Chassis CAN Low

X2.2 VEH-CANSH VMM/Chassis CAN Shield

X2.3 VEH-CANH VMM/Chassis CAN High

X2.4 FBV-UB Foot Brake Valve Power Supply

X2.5 FBV-PW1 Foot Brake Valve PWM Signal 1

X2.6

X2.7

X2.8

X2.9

Pin Name Function

Page 13: Maintenance Manual MM-1719 Anti-Lock Braking System · PDF fileMaintenance Manual MM-1719 Anti-Lock Braking System (ABS) and Electronic Stability Control (ESC) For Modular Braking

3 Diagnostics, Troubleshooting and Testing

9Meritor WABCO Maintenance Manual MM-1719 (Issued 06-17)

Table C: X3 Harness Connector

Modulator Valve Testing

Electrical Checks

� Check modulator valve by itself for resistance.

� Check ECU harness and modulator valve together for resistance. Figure 3.7.

� Verify no change in resistance or open circuit between valve by itself and through harness.

� Check harness by itself for any shorts to battery and shorts to ground.

� Measurements should read as follows:

X2.10

X2.11

X2.12 ALG1-S Analog 1 Signal

X2.13 FBV-GND Foot Brake Valve Ground

X2.14 FBV-PW2 Foot Brake Valve PWM Signal 2

X2.15

X2.16

X2.17

X2.18

X2.19 TRM-30A Ubat/Terminal 30A

X2.20 TRM-30B Ubat/Terminal 30B

X2.21

X2.22

X2.23 TRM-31A GND/Terminal 31A

X2.24 TRM-31B GND/Terminal 31B

X2.25

Pin Name Function

X3.1 WSS-IAL-L WSS Intermediate Axle left low

X3.2 WSS-IAL-H WSS Intermediate Axle left high

X3.3 ABS-IAL-IV ABS Valve IA left IV

X3.4 ABS-IAL-GND ABS Valve IA left GND

X3.5 ABS-IAL-OV ABS Valve IA left OV

X3.6 AUX-1 [Diff-Lock] *3

X3.7

X3.8

X3.9

X3.10 WSS-IAR-L WSS Int. Axle right low

X3.11 WSS-IAR-H WSS Int. Axle right high

X3.12 ABS-IAR-IV ABS Valve IA right IV

X3.13 ABS-IAR-GND ABS Valve IA right GND

X3.14 ABS-IAR-OV ABS Valve IA right OV

X3.15 AUX-1-GND [Dif-Lock GND] *3

X3.16

X3.17

Pin Name Function

X3.18

X3.19 AUX-5 [3/2-Valve Governor] *3

X3.20 AUX-5-GND [3/2-Valve Governor GND] *3

X3.21 AUX-6-GND [3/2-Valve Regeneration GND] *3

X3.22 AUX-6 [3/2-Valve Regeneration] *3

X3.23 AUX-2 [TC-Lock] *3

X3.24 AUX-2-GND [TC-Lock GND] *3

X3.25

X3.26

X3.27

X3.28

X3.29

X3.30

X3.31

X3.32

X3.33

X3.34

X3.35

X3.36

Location Measurement

Inlet valve pin to Ground 4.0-9.0 ohm for 12V system

Outlet valve pin to Ground 4.0-9.0 ohm for 12V system

At ECU harness pins with modulator valve connected

4.0-9.0 ohm for 12V system, no more than 1 ohm difference

Pin Name Function

Page 14: Maintenance Manual MM-1719 Anti-Lock Braking System · PDF fileMaintenance Manual MM-1719 Anti-Lock Braking System (ABS) and Electronic Stability Control (ESC) For Modular Braking

3 Diagnostics, Troubleshooting and Testing

10 Meritor WABCO Maintenance Manual MM-1719 (Issued 06-17)

ABV Testing

Electrical Checks

� Check ABV 3/2 solenoid by itself for resistance.

� Check ECU harness and ABV 3/2 solenoid together for resistance. Figure 3.7.

� Verify no change in resistance or open circuit between ABV by itself and through harness.

� Check harness by itself for any shorts to battery and shorts to ground.

� Measurements should read as follows:

ESC CAN Network TestingThe ECU and ESC module are all connected on propriety CAN network with internal terminating resistors on each one of these components. A failure to one of the components will cause others to fault out.

ESC Module Testing

Electrical Checks

For the following checks, all of the ECU connectors must be plugged in. The ECU provides voltage, ground and CAN communication to ESC module.

� Take measurements at the ESC module harness connector.

� Measure voltage supply Key ON.

� Measure CAN High voltage Key ON.

� Measure CAN Low voltage Key ON.

� Measure terminating resistance across CAN High and Low with Key OFF.

With ECU and ESC Module disconnected:

� Verify continuity end to end on each line

� Verify no shorts to ground or battery on all lines.

� Verify no continuity between pins.

Measurements should read as follows:

ESC Module MountingThe ESC module contains sensors which measure both lateral acceleration and yaw rate. Thus, it is critical that the module is securely mounted, leveled and in correct location to the vehicle and that the module is mounted as expected by the ECU and as per vehicle OEM specifications.

The module should be installed in a manner where the label is right side up. The module must be mounted perpendicular to the vehicle frame rails on a cross member or cross member bracket. The module connector could be facing the front or rear of the vehicle depending on the OEM’s specified mounting. It is critical that the unit be mounted in the exact location and manner as originally installed by the vehicle manufacturer.

SAS TestingContact the OEM for electrical checks and all troubleshooting.

ECU harness by itself for battery voltage or ground

No continuity

Location Measurement

ABV Supply to ABV Common 7.0-14.0 ohm for 12V system

At ECU harness pins with ABV connected

7.0-14.0 ohm for 12V system, no more than 1 ohm difference

ECU harness by itself for battery voltage or ground

No continuity

Location Measurement

Circuit Measurement

Voltage Supply to Chassis Ground 8.0-16.0V

ESC Ground to Chassis Ground Less than 1 ohm resistance

Terminating Resistance between ESC CAN-High to ESC CAN-Low

Approximately 180 ohms

With ECU disconnected, check CAN lines, power supply and ground for battery voltage or ground.

No continuity

CAN High Voltage 2.5-5.0V

CAN Low Voltage 0.1-2.4V

Page 15: Maintenance Manual MM-1719 Anti-Lock Braking System · PDF fileMaintenance Manual MM-1719 Anti-Lock Braking System (ABS) and Electronic Stability Control (ESC) For Modular Braking

4 Wiring Diagrams and Connectors

11Meritor WABCO Maintenance Manual MM-1719 (Issued 06-17)

4 Wiring Diagrams and ConnectorsmBSPTM ABS ECU Wiring Diagram

Figure 4.1

Figure 4.1

4013112a

X2.8X2.6

X2.25X2.19

>2.5 MM3

F1

F2

FBV-UBFBV-GNDFBV-PW1FBV-PW2

SYS-1A-GNDSYS-1A-UB

SYS-1A-CANLSYS-1A-CANH

TRAILER MODULATOR-IV

TRAILER MODULATOR-GND

TRAILER MODULATOR-OV

TRAILER MODULATOR-GND

AUX-EAUX-E-GND

AUX-FAUX-F-GND

ABS-VALVE IA LEFT-IVABS-VALVE IA LEFT-GND

ABS-VALVE IA LEFT-OV

WSS-INTERMEDIATE AXLE LEFT-LWSS-INTERMEDIATE AXLE LEFT-H

WSS-INTERMEDIATE AXLE RIGHT-LWSS-INTERMEDIATE AXLE RIGHT-H

ABS-VALVE IA RIGHT-IVABS-VALVE IA RIGHT-GND

ABS-VALVE IA RIGHT-OV

ABS-VALVE DA LEFT-IVABS-VALVE DA LEFT-GNDABS-VALVE DA LEFT-OV

ABS-VALVE FA LEFT-IVABS-VALVE FA LEFT-GNDABS-VALVE FA LEFT-OV

VEH-CANLVEH-CANSHVEH-CANH

GND/TERMINAL-31AGND/TERMINAL-31B

UBAT/TERMINAL-30A

UBAT/TERMINAL-30B

WSS-DRIVE AXLE LEFT-LWSS-DRIVE AXLE LEFT-H

WSS-DRIVE AXLE RIGHT-LWSS-DRIVE AXLE RIGHT-H

WSS-FRONT AXLE LEFT-LWSS-FRONT AXLE LEFT-H

WSS-FRONT AXLE RIGHT-LWSS-FRONT AXLE RIGHT-H

ABS-VALVE DA RIGHT-IVABS-VALVE DA RIGHT-GNDABS-VALVE DA RIGHT-OV

ABS-VALVE FA RIGHT-IVABS-VALVE FA RIGHT-GNDABS-VALVE FA RIGHT-OV

ABV-DRIVE AXLEABV-DRIVE AXLE-GND

ABV-FRONT AXLEABV-FRONT AXLE-GND

FBVwith

2 Stroke

Sensors

ESCModule

X2.10X2.11

X2.20

X2.23

X2.24X2.1X2.2X2.3

X2.4X2.13X2.5X2.14

X2.12

X1.6X1.7X1.8X1.9

X1.33X1.34

X1.36X1.35

X1.27X1.26

X3.19

X3.20

X3.22

X3.21

X3.6

X3.15

X3.23

X3.24

X3.3

X3.4

X3.5

TWISTED

TWISTED

TWISTED

TWISTED

TWISTED

TWISTED

X1.3

X1.4

X1.5

X1.1

X1.2

X1.15

X1.16

X1.17

X1.18

X1.24

X1.25

X1.19

X1.20

X1.21

X1.22

X1.23

X1.10

X1.11

X1.12

X1.13

X1.14

X1.28

X1.29

X1.30

X1.31

X1.32

X3.1

X3.2

X3.10

X3.11

X3.12

X3.13

X3.14

>2.5 MM3

>2.5 MM2

>2.5 MM2

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4 Wiring Diagrams and Connectors

12 Meritor WABCO Maintenance Manual MM-1719 (Issued 06-17)

Harness Connectors

Figure 4.2

Figure 4.2

X1 X2 X3

CONNECTOR

X1

X2

X3

NUMBER OF PINS

2 X 18

18 + 7

2 X 18

CONNECTOR TYPE

C-114-18664, CODING A REV. F2

C-114-18721, CODING A REV. A1

C-114-18664, CODING B REV. F2 4013131a

Page 17: Maintenance Manual MM-1719 Anti-Lock Braking System · PDF fileMaintenance Manual MM-1719 Anti-Lock Braking System (ABS) and Electronic Stability Control (ESC) For Modular Braking

4 Wiring Diagrams and Connectors

13Meritor WABCO Maintenance Manual MM-1719 (Issued 06-17)

Figure 4.3

Figure 4.4

Figure 4.3

4013108a

ELECTRICAL PORT

X1.1

X1.2

X1.3

X2.1

X2.2

X2.3

X3.1

X3.3

UNIT FUNCTION

GROUND

INLET

OUTLET

GROUND

INLET

OUTLET

GROUND

INLET

TYPE

TYCO HDSCS 3X2.8 CODING AABS CONNECTOR LEFT

X1

ABS CONNECTOR RIGHTX2

ACTIVE BRAKING VALVE CONNECTORX3

TYCO HDSCS 3X2.8 CODING B

TYCO HDSCS 2X1.5 CODING A

3

X1.3

X1.1

X1.2

X1

REAR AXLE VALVE PACKAGE HARNESS CONNECTORS

2

1

3

X2.3

X2.1

X2.2

X2

2

1

X3.3

X3.1

X3

Figure 4.4

4013098a

X1.3

3/2 SOLENOIDVALVE CONNECTOR

X1

ELECTRICALPORT

X1.1

X1.1

X1.3

GROUND

INLET

FUNCTION

FRONT AXLE VALVE PACKAGE HARNESS CONNECTORCONNECTOR TYCO HDSCS 2 X 1.5 CODING A

Page 18: Maintenance Manual MM-1719 Anti-Lock Braking System · PDF fileMaintenance Manual MM-1719 Anti-Lock Braking System (ABS) and Electronic Stability Control (ESC) For Modular Braking

4 Wiring Diagrams and Connectors

14 Meritor WABCO Maintenance Manual MM-1719 (Issued 06-17)

Figure 4.5

Figure 4.6

Figure 4.7

Figure 4.5

4013108a

ELECTRICAL PORT

X1.1

X1.2

X1.3

X2.1

X2.2

X2.3

X3.1

X3.3

UNIT FUNCTION

GROUND

INLET

OUTLET

GROUND

INLET

OUTLET

GROUND

INLET

TYPE

TYCO HDSCS 3X2.8 CODING AABS CONNECTOR LEFT

X1

ABS CONNECTOR RIGHTX2

ACTIVE BRAKING VALVE CONNECTORX3

TYCO HDSCS 3X2.8 CODING B

TYCO HDSCS 2X1.5 CODING A

3

X1.3

X1.1

X1.2

X1

REAR AXLE VALVE PACKAGE HARNESS CONNECTORS

2

1

3

X2.3

X2.1

X2.2

X2

2

1

X3.3

X3.1

X3

Figure 4.6

4013103a

6.1

6.36.2

2 3

1

ABS MODULATOR VALVE HARNESS CONNECTORMAIN APPLICATION 3-POLE TYCO CONNECTORHDSCS 4 X 2.8

6.1: GND6.2: Inlet valve6.3: Outlet valve

Surface protectionof pins: Sn

Figure 4.7

4013105a

14 5 6 7

2 3

PIN ASSIGNMENT

PIN 1 = 6.1 Ground (OV)

PIN 2 = 6.2 Voltage supply

PIN 3 = not connected

PIN 4 = not connected

PIN 5 = 6.5 PWM Signal 1

PIN 6 = not connected

PIN 7 = 6.7 PWM Signal 2

PIN CROSS SECTION ABBREVIATION FUNCTION

1 2.8 MM GND Common valve pin

2 2.8 MM Ub Voltage supply

3 not connected

4 1.5 MM not connected

5 1.5 MM PWM1 PWM signal 1

6 1.5 MM not connected

7 1.5 MM PWM2 PWM signal 2

FOOT BRAKE VALVE HARNESS CONNECTOR

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4 Wiring Diagrams and Connectors

15Meritor WABCO Maintenance Manual MM-1719 (Issued 06-17)

Figure 4.8

Figure 4.8

4013107a

1 234

Pin 1: GNDPin 2: Voltage SupplyPin 3: CAN HighPin 4: CAN Low

Surface protectionof pins: Sn

ELECTRONIC STABILITY CONTROL MODULEHARNESS CONNECTOR

Page 20: Maintenance Manual MM-1719 Anti-Lock Braking System · PDF fileMaintenance Manual MM-1719 Anti-Lock Braking System (ABS) and Electronic Stability Control (ESC) For Modular Braking

5 SPN FMI Fault Codes

16 Meritor WABCO Maintenance Manual MM-1719 (Issued 06-17)

5 SPN FMI Fault CodesDTC SPN FMI TablesFigure 5.1

DTC

SP

N F

MI

Failu

re D

etec

tion

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leve

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Ove

rvol

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(3

0A)

(30B

)A

n ov

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at t

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inal

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/30B

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etec

ted

if th

e vo

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is a

bove

16V

for

long

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an 1

250

ms.

The

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the

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Inte

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ontr

olle

r #1

-

bad

inte

llige

nt d

evic

e or

co

mpo

nent

Pic

Wdc

/MC

Err

orT

he P

ic W

atch

dog

Con

trol

ler

has

dete

cted

an

MC

er

ror.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

629

- 14

= C

ontr

olle

r #1

-

spec

ial i

nstr

uctio

nsW

atch

dog/

Res

et

Failu

reT

he W

atch

dog

has

dete

cted

a R

eset

Fai

lure

.Ye

llow

Driv

er W

arni

ng,

AB

S c

ompl

etel

y sw

itche

d of

f

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

639

- 12

= J

1939

Net

wor

k #1

, Prim

ary

Vehi

cle

Net

wor

k (p

revi

ousl

y S

AE

J19

39 D

ata

Link

) -

bad

inte

llige

nt d

evic

e or

com

pone

nt

Bus

OffE

rror

on

VM

M-

CA

NA

failu

re is

set

if a

Bus

Off

cond

ition

of t

he C

AN

-co

ntro

ller

(veh

icle

CA

N d

ata

link)

was

det

ecte

d.Ye

llow

Driv

er W

arni

ng,

AB

S fu

lly a

vaila

ble

• C

heck

the

wiri

ng o

f the

cha

ssis

-CA

N d

ata

conn

ectio

n an

d th

e re

latin

g el

ectr

ic c

onne

ctor

s be

twee

n th

e m

ain

EC

U a

nd th

e ot

her

chas

sis-

CA

N E

CU

s.

701

- 3

= D

iff L

ock

- vo

ltage

ab

ove

norm

al o

r sh

orte

d hi

gh

Failu

re d

etec

tion

'Sho

rtU

b' a

t Aux

iliar

y O

utpu

t (D

iff L

ock)

A s

hort

circ

uit t

o U

B o

f the

rel

evan

t act

uato

r is

det

ecte

d in

act

ive

and

inac

tive

stat

es. T

he

dete

ctio

n tim

e is

200

ms.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• C

heck

wiri

ng o

f rel

evan

t val

ve/a

ctua

tor.

(Is

ther

e a

shor

t ci

rcui

t?)

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

4013132a

Page 21: Maintenance Manual MM-1719 Anti-Lock Braking System · PDF fileMaintenance Manual MM-1719 Anti-Lock Braking System (ABS) and Electronic Stability Control (ESC) For Modular Braking

5 SPN FMI Fault Codes

17Meritor WABCO Maintenance Manual MM-1719 (Issued 06-17)

Figure 5.2

DTC

SP

N F

MI

Failu

re D

etec

tion

Nam

eFa

ilure

Det

ectio

n D

escr

iptio

nW

arni

ng a

nd S

yste

m

Rea

ctio

nR

epai

r

701

- 4

= D

iff L

ock

- vo

ltage

be

low

nor

mal

or

shor

ted

low

Failu

re d

etec

tion

'Sho

rtG

nd' a

t Aux

iliar

y O

utpu

t (D

iff L

ock)

A s

hort

circ

uit t

o G

ND

of t

he r

elev

ant a

ctua

tor

is d

etec

ted

in a

ctiv

e an

d in

activ

e st

ates

. The

de

tect

ion

time

is 2

00 m

s.

Rem

ark:

A s

hort

ed lo

ad a

lso

lead

s to

a s

hort

to

GN

D fa

ilure

. A s

hort

ed lo

ad is

det

ecte

d:

- A

fter

200

ms

afte

r ig

nitio

n-on

and

als

o if

valv

e is

ac

tivat

ed.

- A

fter

1000

ms

if va

lve

is n

ot a

ctiv

ated

.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• C

heck

wiri

ng o

f rel

evan

t val

ve/a

ctua

tor.

(Is

ther

e a

shor

t ci

rcui

t?)

• C

heck

rel

evan

t val

ve/a

ctua

tor.

(Is

ther

e an

inte

rnal

sho

rt

circ

uit?

)•

Con

tact

the

Mer

itor

OnT

rac™

Cus

tom

er C

all C

ente

r at

86

6-O

nTra

c1 (

668-

7221

).

701

- 5

= D

iff L

ock

- cu

rren

t be

low

nor

mal

or

open

circ

uit

Failu

re d

etec

tion

'Inte

rrup

tion'

at

Aux

iliar

y O

utpu

t (D

iff

Lock

)

An

inte

rrup

tion

of th

e re

leva

nt a

ctua

tor

is d

etec

ted

in a

ctiv

e an

d in

activ

e st

ates

. The

det

ectio

n tim

e is

200

ms.

Yello

w D

river

War

ning

, A

BS

fully

ava

ilabl

e•

Che

ck fo

r co

rrec

t par

amet

er s

ettin

g. (

Is th

e re

leva

nt

valv

e/ac

tuat

or e

quip

ped?

)•

Che

ck w

iring

of r

elev

ant v

alve

/act

uato

r. (I

s th

ere

an

inte

rrup

tion?

)•

Che

ck r

elev

ant v

alve

/act

uato

r (I

s th

ere

an in

tern

al

inte

rrup

tion?

)•

Con

tact

the

Mer

itor

OnT

rac™

Cus

tom

er C

all C

ente

r at

86

6-O

nTra

c1 (

668-

7221

).

701

- 13

= D

iff L

ock

- ou

t of

calib

ratio

nFa

ilure

det

ectio

n 'O

verE

quip

ped'

at

Aux

iliar

y O

utpu

t (D

iff

Lock

)

A fa

ilure

is d

etec

ted

if a

com

pone

nt is

con

nect

ed

to th

e E

CU

, but

it is

not

act

ivat

ed in

the

para

met

er

setti

ngs.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• C

heck

for

corr

ect p

aram

eter

set

ting.

(Is

the

rele

vant

va

lve/

actu

ator

equ

ippe

d?)

• C

heck

wiri

ng o

f rel

evan

t val

ve/a

ctua

tor.

(Is

EC

U p

in

open

?)•

Con

tact

the

Mer

itor

OnT

rac™

Cus

tom

er C

all C

ente

r at

86

6-O

nTra

c1 (

668-

7221

).

702

- 3

= Tr

ansf

er C

ase

Lock

- v

olta

ge a

bove

nor

mal

or

sho

rted

hig

h

Failu

re d

etec

tion

'Sho

rtU

b' a

t Aux

iliar

y O

utpu

t (Tr

ansf

er C

ase

Lock

)

A s

hort

circ

uit t

o U

B o

f the

rel

evan

t act

uato

r is

det

ecte

d in

act

ive

and

inac

tive

stat

es. T

he

dete

ctio

n tim

e is

200

ms.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• C

heck

wiri

ng o

f rel

evan

t val

ve/a

ctua

tor.

(Is

ther

e a

shor

t ci

rcui

t?)

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

702

- 4

= Tr

ansf

er C

ase

Lock

- v

olta

ge b

elow

nor

mal

or

sho

rted

low

Failu

re d

etec

tion

'Sho

rtG

nd' a

t Aux

iliar

y O

utpu

t (Tr

ansf

er C

ase

Lock

)

A s

hort

circ

uit t

o G

ND

of t

he r

elev

ant a

ctua

tor

is d

etec

ted

in a

ctiv

e an

d in

activ

e st

ates

. The

de

tect

ion

time

is 2

00 m

s.R

emar

k: A

sho

rted

load

als

o le

ads

to a

sho

rt to

G

ND

failu

re. A

sho

rted

load

is d

etec

ted:

-

Afte

r 20

0 m

s af

ter

igni

tion-

on a

nd a

lso

if va

lve

is

activ

ated

.-

Afte

r 10

00 m

s if

valv

e is

not

act

ivat

ed.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• C

heck

wiri

ng o

f rel

evan

t val

ve/a

ctua

tor.

(Is

ther

e a

shor

t ci

rcui

t?)

• C

heck

rel

evan

t val

ve/a

ctua

tor.

(Is

ther

e an

inte

rnal

sho

rt

circ

uit?

)•

Con

tact

the

Mer

itor

OnT

rac™

Cus

tom

er C

all C

ente

r at

86

6-O

nTra

c1 (

668-

7221

).

702

- 5

= Tr

ansf

er C

ase

Lock

- c

urre

nt b

elow

nor

mal

or

ope

n ci

rcui

t

Failu

re d

etec

tion

'Inte

rrup

tion'

at

Aux

iliar

y O

utpu

t (T

rans

fer

Cas

e Lo

ck)

An

inte

rrup

tion

of th

e re

leva

nt a

ctua

tor

is d

etec

ted

in a

ctiv

e an

d in

activ

e st

ates

. The

det

ectio

n tim

e is

200

ms.

Yello

w D

river

War

ning

, A

BS

fully

ava

ilabl

e•

Che

ck fo

r co

rrec

t par

amet

er s

ettin

g. (

Is th

e re

leva

nt

valv

e/ac

tuat

or e

quip

ped?

)•

Che

ck w

iring

of r

elev

ant v

alve

/act

uato

r. (I

s th

ere

an

inte

rrup

tion?

)•

Che

ck r

elev

ant v

alve

/act

uato

r. (I

s th

ere

an in

tern

al

inte

rrup

tion?

)•

Con

tact

the

Mer

itor

OnT

rac™

Cus

tom

er C

all C

ente

r at

86

6-O

nTra

c1 (

668-

7221

).

702

- 13

= T

rans

fer

Cas

e Lo

ck -

out

of c

alib

ratio

nFa

ilure

det

ectio

n 'O

verE

quip

ped'

at

Aux

iliar

y O

utpu

t (T

rans

fer

Cas

e Lo

ck)

A fa

ilure

is d

etec

ted

if a

com

pone

nt is

con

nect

ed

to th

e E

CU

, but

it is

not

act

ivat

ed in

the

para

met

er

setti

ngs.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• C

heck

for

corr

ect p

aram

eter

set

ting.

(Is

the

rele

vant

va

lve/

actu

ator

equ

ippe

d?)

• C

heck

wiri

ng o

f rel

evan

t val

ve/a

ctua

tor.

(Is

EC

U p

in

open

?)•

• Con

tact

the

Mer

itor

OnT

rac™

Cus

tom

er C

all C

ente

r at

86

6-O

nTra

c1 (

668-

7221

).

703

- 3

= Tr

aile

r M

odul

ator

IV

- v

olta

ge a

bove

nor

mal

or

shor

ted

high

Failu

re d

etec

tion

'Sho

rtU

b' a

t Aux

iliar

y O

utpu

t (Tr

aile

r M

odul

ator

IV)

A s

hort

circ

uit t

o U

B o

f the

rel

evan

t act

uato

r is

det

ecte

d in

act

ive

and

inac

tive

stat

es. T

he

dete

ctio

n tim

e is

200

ms.

Yello

w D

river

War

ning

, A

BS

fully

ava

ilabl

e•

Che

ck w

iring

of r

elev

ant v

alve

/act

uato

r. (I

s th

ere

a sh

ort

circ

uit?

)•

Con

tact

the

Mer

itor

OnT

rac™

Cus

tom

er C

all C

ente

r at

86

6-O

nTra

c1 (

668-

7221

).

4013133a

Page 22: Maintenance Manual MM-1719 Anti-Lock Braking System · PDF fileMaintenance Manual MM-1719 Anti-Lock Braking System (ABS) and Electronic Stability Control (ESC) For Modular Braking

5 SPN FMI Fault Codes

18 Meritor WABCO Maintenance Manual MM-1719 (Issued 06-17)

Figure 5.3

DTC

SP

N F

MI

Failu

re D

etec

tion

Nam

eFa

ilure

Det

ectio

n D

escr

iptio

nW

arni

ng a

nd S

yste

m

Rea

ctio

nR

epai

r

703

- 4

= Tr

aile

r M

odul

ator

IV

- v

olta

ge b

elow

nor

mal

or

shor

ted

low

Failu

re d

etec

tion

‘Sho

rtG

nd’ a

t Aux

iliar

y O

utpu

t (P

ositi

on A

)

A s

hort

circ

uit t

o G

ND

of t

he r

elev

ant a

ctua

tor

is d

etec

ted

in a

ctiv

e an

d in

activ

e st

ates

. The

de

tect

ion

time

is 2

00 m

s.R

emar

k: A

sho

rted

load

als

o le

ads

to a

sho

rt to

G

ND

failu

re. A

sho

rted

load

is d

etec

ted:

-

Afte

r 20

0 m

s af

ter

igni

tion-

on a

nd a

lso

if va

lve

is

activ

ated

.-

Afte

r 10

00 m

s if

valv

e is

not

act

ivat

ed.

Yello

w D

river

War

ning

, A

BS

fully

ava

ilabl

e•

Che

ck w

iring

of r

elev

ant v

alve

/act

uato

r. (I

s th

ere

a sh

ort

circ

uit?

)•

Che

ck r

elev

ant v

alve

/act

uato

r. (I

s th

ere

an in

tern

al s

hort

ci

rcui

t?)

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

703

- 5

= Tr

aile

r M

odul

ator

IV

- c

urre

nt b

elow

nor

mal

or

open

circ

uit

Failu

re d

etec

tion

'Inte

rrup

tion'

at

Aux

iliar

y O

utpu

t (T

raile

r M

odul

ator

IV)

An

inte

rrup

tion

of th

e re

leva

nt a

ctua

tor

is d

etec

ted

in a

ctiv

e an

d in

activ

e st

ates

. The

det

ectio

n tim

e is

200

ms.

Yello

w D

river

War

ning

, A

BS

fully

ava

ilabl

e•

Che

ck fo

r co

rrec

t par

amet

er s

ettin

g. (

Is th

e re

leva

nt

valv

e/ac

tuat

or e

quip

ped?

)•

Che

ck w

iring

of r

elev

ant v

alve

/act

uato

r. (I

s th

ere

an

inte

rrup

tion?

)•

Che

ck r

elev

ant v

alve

/act

uato

r (I

s th

ere

an in

tern

al

inte

rrup

tion?

)•

Con

tact

the

Mer

itor

OnT

rac™

Cus

tom

er C

all C

ente

r at

86

6-O

nTra

c1 (

668-

7221

).

703

- 13

= T

raile

r M

odul

ator

IV

- o

ut o

f cal

ibra

tion

Failu

re d

etec

tion

'Ove

rEqu

ippe

d' a

t A

uxili

ary

Out

put

(Tra

iler

Mod

ulat

or IV

)

A fa

ilure

is d

etec

ted

if a

com

pone

nt is

con

nect

ed

to th

e E

CU

, but

it is

not

act

ivat

ed in

the

para

met

er

setti

ngs.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• C

heck

for

corr

ect p

aram

eter

set

ting.

(Is

the

rele

vant

va

lve/

actu

ator

equ

ippe

d?)

• C

heck

wiri

ng o

f rel

evan

t val

ve/a

ctua

tor.

(Is

EC

U p

in

open

?)•

Con

tact

the

Mer

itor

OnT

rac™

Cus

tom

er C

all C

ente

r at

86

6-O

nTra

c1 (

668-

7221

).

704

- 3

= Tr

aile

r M

odul

ator

O

V -

vol

tage

abo

ve n

orm

al

or s

hort

ed h

igh

Failu

re d

etec

tion

'Sho

rtU

b' a

t Aux

iliar

y O

utpu

t (Tr

aile

r M

odul

ator

OV

)

A s

hort

circ

uit t

o U

B o

f the

rel

evan

t act

uato

r is

det

ecte

d in

act

ive

and

inac

tive

stat

es. T

he

dete

ctio

n tim

e is

200

ms.

Yello

w D

river

War

ning

, A

BS

fully

ava

ilabl

e•

Che

ck w

iring

of r

elev

ant v

alve

/act

uato

r. (I

s th

ere

a sh

ort

circ

uit?

)•

Con

tact

the

Mer

itor

OnT

rac™

Cus

tom

er C

all C

ente

r at

86

6-O

nTra

c1 (

668-

7221

).

704

- 4

= Tr

aile

r M

odul

ator

O

V -

vol

tage

bel

ow n

orm

al

or s

hort

ed lo

w

Failu

re d

etec

tion

'Sho

rtG

nd' a

t Aux

iliar

y O

utpu

t (Tr

aile

r M

odul

ator

OV

)

A s

hort

circ

uit t

o G

ND

of t

he r

elev

ant a

ctua

tor

is d

etec

ted

in a

ctiv

e an

d in

activ

e st

ates

. The

de

tect

ion

time

is 2

00 m

s.R

emar

k: A

sho

rted

load

als

o le

ads

to a

sho

rt to

G

ND

failu

re. A

sho

rted

load

is d

etec

ted:

-

Afte

r 20

0 m

s af

ter

igni

tion-

on a

nd a

lso

if va

lve

is

activ

ated

.-

Afte

r 10

00 m

s if

valv

e is

not

act

ivat

ed.

Yello

w D

river

War

ning

, A

BS

fully

ava

ilabl

e•

Che

ck w

iring

of r

elev

ant v

alve

/act

uato

r. (I

s th

ere

a sh

ort

circ

uit?

)•

Che

ck r

elev

ant v

alve

/act

uato

r. (I

s th

ere

an in

tern

al s

hort

ci

rcui

t?)

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

704

- 5

= Tr

aile

r M

odul

ator

O

V -

cur

rent

bel

ow n

orm

al

or o

pen

circ

uit

Failu

re d

etec

tion

'Inte

rrup

tion'

at

Aux

iliar

y O

utpu

t (T

raile

r M

odul

ator

OV

)

An

inte

rrup

tion

of th

e re

leva

nt a

ctua

tor

is d

etec

ted

in a

ctiv

e an

d in

activ

e st

ates

. The

det

ectio

n tim

e is

200

ms.

Yello

w D

river

War

ning

, A

BS

fully

ava

ilabl

e•

Che

ck fo

r co

rrec

t par

amet

er s

ettin

g. (

Is th

e re

leva

nt

valv

e/ac

tuat

or e

quip

ped?

)•

Che

ck w

iring

of r

elev

ant v

alve

/act

uato

r. (I

s th

ere

an

inte

rrup

tion?

)•

Che

ck r

elev

ant v

alve

/act

uato

r. (I

s th

ere

an in

tern

al

inte

rrup

tion?

)•

Con

tact

the

Mer

itor

OnT

rac™

Cus

tom

er C

all C

ente

r at

86

6-O

nTra

c1 (

668-

7221

).

704

- 13

= T

raile

r M

odul

ator

O

V -

out

of c

alib

ratio

nFa

ilure

det

ectio

n 'O

verE

quip

ped'

at

Aux

iliar

y O

utpu

t (T

raile

r M

odul

ator

OV

)

A fa

ilure

is d

etec

ted

if a

com

pone

nt is

con

nect

ed

to th

e E

CU

, but

it is

not

act

ivat

ed in

the

para

met

er

setti

ngs.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• C

heck

for

corr

ect p

aram

eter

set

ting.

(Is

the

rele

vant

va

lve/

actu

ator

equ

ippe

d?)

• C

heck

wiri

ng o

f rel

evan

t val

ve/a

ctua

tor.

(Is

EC

U p

in

open

?)•

Con

tact

the

Mer

itor

OnT

rac™

Cus

tom

er C

all C

ente

r at

86

6-O

nTra

c1 (

668-

7221

).

705

- 3 =

3/2

Val

ve G

over

nor

- vo

ltage

abo

ve n

orm

al o

r sh

orte

d hi

gh

Failu

re d

etec

tion

'Sho

rtU

b' a

t Aux

iliar

y O

utpu

t (3/

2 Va

lve

Gov

erno

r)

A s

hort

circ

uit t

o U

B o

f the

rel

evan

t act

uato

r is

det

ecte

d in

act

ive

and

inac

tive

stat

es. T

he

dete

ctio

n tim

e is

200

ms.

Yello

w D

river

War

ning

, A

BS

fully

ava

ilabl

e•

Che

ck w

iring

of r

elev

ant v

alve

/act

uato

r. (I

s th

ere

a sh

ort

circ

uit?

)•

Con

tact

the

Mer

itor

OnT

rac™

Cus

tom

er C

all C

ente

r at

86

6-O

nTra

c1 (

668-

7221

).

4013134a

Page 23: Maintenance Manual MM-1719 Anti-Lock Braking System · PDF fileMaintenance Manual MM-1719 Anti-Lock Braking System (ABS) and Electronic Stability Control (ESC) For Modular Braking

5 SPN FMI Fault Codes

19Meritor WABCO Maintenance Manual MM-1719 (Issued 06-17)

Figure 5.4

DTC

SP

N F

MI

Failu

re D

etec

tion

Nam

eFa

ilure

Det

ectio

n D

escr

iptio

nW

arni

ng a

nd S

yste

m

Rea

ctio

nR

epai

r

705

- 4 =

3/2

Val

ve G

over

nor

- vo

ltage

bel

ow n

orm

al o

r sh

orte

d lo

w

Failu

re d

etec

tion

'Sho

rtG

nd' a

t Aux

iliar

y O

utpu

t (3/

2 Va

lve

Gov

erno

r)

A s

hort

circ

uit t

o G

ND

of t

he r

elev

ant a

ctua

tor

is d

etec

ted

in a

ctiv

e an

d in

activ

e st

ates

. The

de

tect

ion

time

is 2

00 m

s.R

emar

k: A

sho

rted

load

als

o le

ads

to a

sho

rt to

G

ND

failu

re. A

sho

rted

load

is d

etec

ted:

-

Afte

r 20

0 m

s af

ter

igni

tion-

on a

nd a

lso

if va

lve

is

activ

ated

.-

Afte

r 10

00 m

s if

valv

e is

not

act

ivat

ed.

Yello

w D

river

War

ning

, A

BS

fully

ava

ilabl

e•

Che

ck w

iring

of r

elev

ant v

alve

/act

uato

r. (I

s th

ere

a sh

ort

circ

uit?

)•

Che

ck r

elev

ant v

alve

/act

uato

r. (I

s th

ere

an in

tern

al s

hort

ci

rcui

t?)

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

705

- 5 =

3/2

Val

ve G

over

nor

- cu

rren

t bel

ow n

orm

al o

r op

en c

ircui

t

Failu

re d

etec

tion

'Inte

rrup

tion'

at

Aux

iliar

y O

utpu

t (3/

2 Va

lve

Gov

erno

r)

An

inte

rrup

tion

of th

e re

leva

nt a

ctua

tor

is d

etec

ted

in a

ctiv

e an

d in

activ

e st

ates

. The

det

ectio

n tim

e is

200

ms.

Yello

w D

river

War

ning

, A

BS

fully

ava

ilabl

e•

Che

ck fo

r co

rrec

t par

amet

er s

ettin

g. (

Is th

e re

leva

nt

valv

e/ac

tuat

or e

quip

ped?

)•

Che

ck w

iring

of r

elev

ant v

alve

/act

uato

r. (I

s th

ere

an

inte

rrup

tion?

)•

Che

ck r

elev

ant v

alve

/act

uato

r. (I

s th

ere

an in

tern

al

inte

rrup

tion?

)•

Con

tact

the

Mer

itor

OnT

rac™

Cus

tom

er C

all C

ente

r at

86

6-O

nTra

c1 (

668-

7221

).

705

- 13

= 3

/2 V

alve

G

over

nor

- ou

t of c

alib

ratio

nFa

ilure

det

ectio

n 'O

verE

quip

ped'

at

Aux

iliar

y O

utpu

t (3/

2 Va

lve

Gov

erno

r)

A fa

ilure

is d

etec

ted

if a

com

pone

nt is

con

nect

ed

to th

e E

CU

, but

it is

not

act

ivat

ed in

the

para

met

er

setti

ngs.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• C

heck

for

corr

ect p

aram

eter

set

ting.

(Is

the

rele

vant

va

lve/

actu

ator

equ

ippe

d?)

• C

heck

wiri

ng o

f rel

evan

t val

ve/a

ctua

tor.

(Is

EC

U p

in

open

?)•

Con

tact

the

Mer

itor

OnT

rac™

Cus

tom

er C

all C

ente

r at

86

6-O

nTra

c1 (

668-

7221

).

706

- 3

= 3/

2 Va

lve

Reg

ener

atio

n -

volta

ge

abov

e no

rmal

or

shor

ted

high

Failu

re d

etec

tion

'Sho

rtU

b' a

t Aux

iliar

y O

utpu

t (3/

2 Va

lve

Reg

ener

atio

n)

A s

hort

circ

uit t

o U

B o

f the

rel

evan

t act

uato

r is

det

ecte

d in

act

ive

and

inac

tive

stat

es. T

he

dete

ctio

n tim

e is

200

ms.

Yello

w D

river

War

ning

, A

BS

fully

ava

ilabl

e•

Che

ck w

iring

of r

elev

ant v

alve

/act

uato

r. (I

s th

ere

a sh

ort

circ

uit?

)•

Con

tact

the

Mer

itor

OnT

rac™

Cus

tom

er C

all C

ente

r at

86

6-O

nTra

c1 (

668-

7221

).

706

- 4

= 3/

2 Va

lve

Reg

ener

atio

n -

volta

ge

belo

w n

orm

al o

r sh

orte

d lo

w

Failu

re d

etec

tion

'Sho

rtG

nd' a

t Aux

iliar

y O

utpu

t (3/

2 Va

lve

Reg

ener

atio

n)

A s

hort

circ

uit t

o G

ND

of t

he r

elev

ant a

ctua

tor

is d

etec

ted

in a

ctiv

e an

d in

activ

e st

ates

. The

de

tect

ion

time

is 2

00 m

s.R

emar

k: A

sho

rted

load

als

o le

ads

to a

sho

rt to

G

ND

failu

re. A

sho

rted

load

is d

etec

ted:

-

Afte

r 20

0 m

s af

ter

igni

tion-

on a

nd a

lso

if va

lve

is

activ

ated

.-

Afte

r 10

00 m

s if

valv

e is

not

act

ivat

ed.

Yello

w D

river

War

ning

, A

BS

fully

ava

ilabl

e•

Che

ck w

iring

of r

elev

ant v

alve

/act

uato

r. (I

s th

ere

a sh

ort

circ

uit?

)•

Che

ck r

elev

ant v

alve

/act

uato

r. (I

s th

ere

an in

tern

al s

hort

ci

rcui

t?)

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

706

- 5

= 3/

2 Va

lve

Reg

ener

atio

n -

curr

ent

belo

w n

orm

al o

r op

en c

ircui

t

Failu

re d

etec

tion

'Inte

rrup

tion'

at

Aux

iliar

y O

utpu

t (3/

2 Va

lve

Reg

ener

atio

n)

An

inte

rrup

tion

of th

e re

leva

nt a

ctua

tor

is d

etec

ted

in a

ctiv

e an

d in

activ

e st

ates

. The

det

ectio

n tim

e is

200

ms.

Yello

w D

river

War

ning

, A

BS

fully

ava

ilabl

e•

Che

ck fo

r co

rrec

t par

amet

er s

ettin

g. (

Is th

e re

leva

nt

valv

e/ac

tuat

or e

quip

ped?

)•

Che

ck w

iring

of r

elev

ant v

alve

/act

uato

r. (I

s th

ere

an

inte

rrup

tion?

)•

Che

ck r

elev

ant v

alve

/act

uato

r. (I

s th

ere

an in

tern

al

inte

rrup

tion?

)•

Con

tact

the

Mer

itor

OnT

rac™

Cus

tom

er C

all C

ente

r at

86

6-O

nTra

c1 (

668-

7221

).

706

- 13

= 3

/2 V

alve

R

egen

erat

ion

- ou

t of

calib

ratio

n

Failu

re d

etec

tion

'Ove

rEqu

ippe

d' a

t A

uxili

ary

Out

put (

3/2

Valv

e R

egen

erat

ion)

A fa

ilure

is d

etec

ted

if a

com

pone

nt is

con

nect

ed

to th

e E

CU

, but

it is

not

act

ivat

ed in

the

para

met

er

setti

ngs.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• C

heck

for

corr

ect p

aram

eter

set

ting.

(Is

the

rele

vant

va

lve/

actu

ator

equ

ippe

d?)

• C

heck

wiri

ng o

f rel

evan

t val

ve/a

ctua

tor.

(Is

EC

U p

in

open

?)•

Con

tact

the

Mer

itor

OnT

rac™

Cus

tom

er C

all C

ente

r at

86

6-O

nTra

c1 (

668-

7221

).

4013135a

Page 24: Maintenance Manual MM-1719 Anti-Lock Braking System · PDF fileMaintenance Manual MM-1719 Anti-Lock Braking System (ABS) and Electronic Stability Control (ESC) For Modular Braking

5 SPN FMI Fault Codes

20 Meritor WABCO Maintenance Manual MM-1719 (Issued 06-17)

Figure 5.5

DTC

SP

N F

MI

Failu

re D

etec

tion

Nam

eFa

ilure

Det

ectio

n D

escr

iptio

nW

arni

ng a

nd S

yste

m

Rea

ctio

nR

epai

r

789

- 1

= W

heel

Spe

ed

Sen

sor

(Fro

nt A

xle

Left)

-

data

val

id, b

ut b

elow

nor

mal

op

erat

ion

rang

e (m

ost

seve

re le

vel)

AirG

ap F

ailu

re o

f W

heel

Spe

ed S

enso

r (F

ront

Axl

e Le

ft)

An

air

gap

failu

re is

det

ecte

d if

the

volta

ge

ampl

itude

is to

o lo

w (

depe

nds

on s

igna

l fr

eque

ncy)

.

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

the

rele

vant

whe

el s

peed

sen

sor

and

its fi

tting

. Is

the

dist

ance

bet

wee

n to

oth

whe

el a

nd s

enso

r (a

ir ga

p)

too

wid

e?•

Che

ck th

e w

heel

spe

ed s

enso

r fo

r co

rrec

t vol

tage

out

put.

(Is

volta

ge o

utpu

t suf

ficie

nt?)

• If

sens

or a

nd a

ir ga

p ar

e co

rrec

t, co

ntac

t the

Mer

itor

OnT

rac™

Cus

tom

er C

all C

ente

r at

866

-OnT

rac1

(66

8-72

21).

789

- 3

= W

heel

Spe

ed

Sen

sor

(Fro

nt A

xle

Left)

-

volta

ge a

bove

nor

mal

or

shor

ted

high

Sho

rt C

ircui

t to

UB

of

Whe

el S

peed

Sen

sor

(Fro

nt A

xle

Left)

A s

hort

circ

uit t

o U

B a

t the

whe

el s

peed

sen

sor

(IG

-H o

r IG

-L)

is d

etec

ted

afte

r 15

0 m

s.Ye

llow

Driv

er W

arni

ng,

AB

S p

artly

sw

itche

d of

f•

Che

ck w

iring

of r

elev

ant s

enso

r. (I

s th

ere

a sh

ort c

ircui

t?)

• C

heck

rel

evan

t sen

sor.

(Is

ther

e an

inte

rnal

sho

rt c

ircui

t?)

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

789

- 4

= W

heel

Spe

ed

Sen

sor

(Fro

nt A

xle

Left)

-

volta

ge b

elow

nor

mal

or

shor

ted

low

Sho

rt C

ircui

t to

GN

D

of W

heel

Spe

ed

Sen

sor

(Fro

nt A

xle

Left)

A s

hort

circ

uit t

o G

ND

at t

he w

heel

spe

ed s

enso

r (I

G-H

or

IG-L

) is

det

ecte

d 15

0 m

s.Ye

llow

Driv

er W

arni

ng,

AB

S p

artly

sw

itche

d of

f•

Che

ck w

iring

of r

elev

ant s

enso

r. (I

s th

ere

a sh

ort c

ircui

t?)

• C

heck

rel

evan

t sen

sor.

(Is

ther

e an

inte

rnal

sho

rt c

ircui

t?)

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

789

- 5

= W

heel

Spe

ed

Sen

sor

(Fro

nt A

xle

Left)

-

curr

ent b

elow

nor

mal

or

open

circ

uit

Inte

rrup

tion

of W

heel

S

peed

Sen

sor

(Fro

nt

Axl

e Le

ft)

An

inte

rrup

tion

(ope

n lo

ad)

at th

e w

heel

spe

ed

sens

or (

IG-H

or

IG-L

) is

det

ecte

d af

ter

150

ms.

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

for

corr

ect p

aram

eter

set

ting.

(Is

the

rele

vant

se

nsor

equ

ippe

d?)

• C

heck

wiri

ng o

f rel

evan

t sen

sor.

(Is

ther

e an

in

terr

uptio

n?)

• C

heck

rel

evan

t sen

sor.

(Is

ther

e an

inte

rnal

inte

rrup

tion?

)•

Con

tact

the

Mer

itor

OnT

rac™

Cus

tom

er C

all C

ente

r at

86

6-O

nTra

c1 (

668-

7221

).

789

- 6

= W

heel

Spe

ed

Sen

sor

(Fro

nt A

xle

Left)

-

curr

ent a

bove

nor

mal

or

grou

nded

circ

uit

Sho

rted

Coi

l of W

heel

S

peed

Sen

sor

(Fro

nt

Axl

e Le

ft)

A s

hort

ed c

oil o

f the

whe

el s

peed

sen

sor

(<30

0 oh

m)

is d

etec

ted

afte

r 15

0 m

s.Ye

llow

Driv

er W

arni

ng,

AB

S p

artly

sw

itche

d of

f•

Che

ck w

iring

of r

elev

ant s

enso

r. (I

s th

ere

a sh

ort c

ircui

t?)

• C

heck

rel

evan

t sen

sor.

(Is

ther

e an

inte

rnal

sho

rt c

ircui

t?)

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

789

- 7

= W

heel

Spe

ed

Sen

sor

(Fro

nt A

xle

Left)

-

mec

hani

cal s

yste

m n

ot

resp

ondi

ng p

rope

rly o

r ou

t of

adj

ustm

ent

Pol

ewhe

el F

ailu

re o

f W

heel

Spe

ed S

enso

r (F

ront

Axl

e Le

ft)

The

whe

el s

peed

det

ectio

n sh

all b

e ab

le to

det

ect

insu

ffici

ent a

nd/o

r m

issi

ng te

eth

defin

ed w

ithin

30

00 c

ount

s of

teet

h.

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

the

rele

vant

toot

h w

heel

. (Is

it d

amag

ed o

r di

rty?

)

789

- 8

= W

heel

Spe

ed

Sen

sor

(Fro

nt A

xle

Left)

-

abno

rmal

freq

uenc

y, p

ulse

w

idth

or

perio

d

Whe

el S

peed

Sen

sor

Freq

uenc

y To

o H

igh

(Fro

nt A

xle

Left)

A fa

ilure

is d

etec

ted

if th

e w

heel

spe

ed s

igna

l fr

eque

ncy

is >

3500

Hz.

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

whe

ther

ther

e ar

e in

adm

issi

ble

osci

llatio

n-ef

fect

s at

the

rele

vant

foun

datio

n br

ake.

• C

heck

whe

ther

ther

e ar

e in

adm

issi

ble

osci

llatio

n-ef

fect

s at

the

fittin

g of

the

rele

vant

whe

el s

peed

sen

sor.

• C

heck

the

isol

atio

n of

the

whe

el-s

peed

sen

sor

wiri

ng

(hig

h fr

eque

ncie

s m

ight

be

indu

ced)

.•

If th

e ot

her

effe

cts

wer

e al

read

y ch

ecke

d, c

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at 8

66-O

nTra

c1

(668

-722

1).

789

- 11

= W

heel

Spe

ed

Sen

sor

(Fro

nt A

xle

Left)

-

failu

re m

ode

not i

dent

ifiab

le/

root

cau

se n

ot k

now

n

Pla

usib

ility

Che

ck o

f W

heel

Spe

ed S

enso

r (F

ront

Axl

e Le

ft)

The

whe

el s

peed

det

ectio

n sh

all m

onito

r an

alog

in

put a

nd d

igita

l inp

ut o

f WA

BA

AS

IC a

nd c

ompa

re

both

sig

nals

whe

ther

or

not t

hey

are

cons

iste

ncy

(pla

usib

ility

che

ck).

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

wiri

ng o

f rel

evan

t whe

el s

peed

sen

sor.

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

789

- 13

= W

heel

Spe

ed

Sen

sor

(Fro

nt A

xle

Left)

-

out o

f cal

ibra

tion

Failu

re D

etec

tion

'Ove

rEqu

ippe

d' o

f W

heel

Spe

ed S

enso

r (F

ront

Axl

e Le

ft)

A fa

ilure

is d

etec

ted

if a

com

pone

nt is

con

nect

ed

to th

e E

CU

, but

it is

not

act

ivat

ed in

the

para

met

er

setti

ngs.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• C

heck

for

corr

ect p

aram

eter

set

ting.

(Is

the

rele

vant

w

heel

spe

ed s

enso

r eq

uipp

ed?)

• C

heck

wiri

ng o

f rel

evan

t sen

sor.

(Is

EC

U p

in o

pen?

)•

Con

tact

the

Mer

itor

OnT

rac™

Cus

tom

er C

all C

ente

r at

86

6-O

nTra

c1 (

668-

7221

).

4013136a

Page 25: Maintenance Manual MM-1719 Anti-Lock Braking System · PDF fileMaintenance Manual MM-1719 Anti-Lock Braking System (ABS) and Electronic Stability Control (ESC) For Modular Braking

5 SPN FMI Fault Codes

21Meritor WABCO Maintenance Manual MM-1719 (Issued 06-17)

Figure 5.6

DTC

SP

N F

MI

Failu

re D

etec

tion

Nam

eFa

ilure

Det

ectio

n D

escr

iptio

nW

arni

ng a

nd S

yste

m

Rea

ctio

nR

epai

r

789

- 14

= W

heel

Spe

ed

Sen

sor

(Fro

nt A

xle

Left)

-

spec

ial i

nstr

uctio

ns

Run

Out

Fai

lure

of

Whe

el S

peed

Sen

sor

(Fro

nt A

xle

Left)

A R

unO

ut fa

ilure

will

be

dete

cted

if th

e ra

tio o

f m

in/m

ax a

mpl

itude

s is

too

high

.Ye

llow

Driv

er W

arni

ng,

AB

S fu

lly a

vaila

ble

• C

heck

the

rele

vant

toot

h w

heel

. (Is

it d

amag

ed?)

• C

heck

the

rele

vant

whe

el b

earin

g. (

Is it

loos

ened

?)

790

- 1

= W

heel

Spe

ed

Sen

sor

(Fro

nt A

xle

Rig

ht)

- da

ta v

alid

, but

bel

ow n

orm

al

oper

atio

n ra

nge

(mos

t se

vere

leve

l)

AirG

ap F

ailu

re o

f W

heel

Spe

ed S

enso

r (F

ront

Axl

e R

ight

)

An

air

gap

failu

re is

det

ecte

d if

the

volta

ge

ampl

itude

is to

o lo

w (

depe

nds

on s

igna

l fr

eque

ncy)

.

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

the

rele

vant

whe

el s

peed

sen

sor

and

its fi

tting

. Is

the

dist

ance

bet

wee

n to

oth

whe

el a

nd s

enso

r (a

ir ga

p)

too

wid

e?•

Che

ck th

e w

heel

spe

ed s

enso

r fo

r co

rrec

t vol

tage

out

put.

(Is

volta

ge o

utpu

t suf

ficie

nt?)

• If

sens

or a

nd a

ir ga

p ar

e co

rrec

t, co

ntac

t the

Mer

itor

OnT

rac™

Cus

tom

er C

all C

ente

r at

866

-OnT

rac1

(66

8-72

21).

790

- 3

= W

heel

Spe

ed

Sen

sor

(Fro

nt A

xle

Rig

ht)

- vo

ltage

abo

ve n

orm

al o

r sh

orte

d hi

gh

Sho

rt C

ircui

t to

UB

of

Whe

el S

peed

Sen

sor

(Fro

nt A

xle

Rig

ht)

A s

hort

circ

uit t

o U

B a

t the

whe

el s

peed

sen

sor

(IG

-H o

r IG

-L)

is d

etec

ted

afte

r 15

0 m

s.Ye

llow

Driv

er W

arni

ng,

AB

S p

artly

sw

itche

d of

f•

Che

ck w

iring

of r

elev

ant s

enso

r. (I

s th

ere

a sh

ort c

ircui

t?)

• C

heck

rel

evan

t sen

sor.

(Is

ther

e an

inte

rnal

sho

rt c

ircui

t?)

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

790

- 4

= W

heel

Spe

ed

Sen

sor

(Fro

nt A

xle

Rig

ht)

- vo

ltage

bel

ow n

orm

al o

r sh

orte

d lo

w

Sho

rt C

ircui

t to

GN

D

of W

heel

Spe

ed

Sen

sor

(Fro

nt A

xle

Rig

ht)

A s

hort

circ

uit t

o G

ND

at t

he w

heel

spe

ed s

enso

r (I

G-H

or

IG-L

) is

det

ecte

d af

ter

150

ms.

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

wiri

ng o

f rel

evan

t sen

sor.

(Is

ther

e a

shor

t circ

uit?

)•

Che

ck r

elev

ant s

enso

r. (I

s th

ere

an in

tern

al s

hort

circ

uit?

)•

Con

tact

the

Mer

itor

OnT

rac™

Cus

tom

er C

all C

ente

r at

86

6-O

nTra

c1 (

668-

7221

).

790

- 5

= W

heel

Spe

ed

Sen

sor

(Fro

nt A

xle

Rig

ht)

- cu

rren

t bel

ow n

orm

al o

r op

en c

ircui

t

Inte

rrup

tion

of W

heel

S

peed

Sen

sor

(Fro

nt

Axl

e R

ight

)

An

inte

rrup

tion

(ope

n lo

ad)

at th

e w

heel

spe

ed

sens

or (

IG-H

or

IG-L

) is

det

ecte

d af

ter

150

ms.

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

for

corr

ect p

aram

eter

set

ting.

(Is

the

rele

vant

se

nsor

equ

ippe

d?)

• C

heck

wiri

ng o

f rel

evan

t sen

sor.

(Is

ther

e an

in

terr

uptio

n?)

• C

heck

rel

evan

t sen

sor.

(Is

ther

e an

inte

rnal

inte

rrup

tion?

)•

Con

tact

the

Mer

itor

OnT

rac™

Cus

tom

er C

all C

ente

r at

86

6-O

nTra

c1 (

668-

7221

).

790

- 6

= W

heel

Spe

ed

Sen

sor

(Fro

nt A

xle

Rig

ht)

- cu

rren

t abo

ve n

orm

al o

r gr

ound

ed c

ircui

t

Sho

rted

Coi

l of W

heel

S

peed

Sen

sor

(Fro

nt

Axl

e R

ight

)

A s

hort

ed c

oil o

f the

whe

el s

peed

sen

sor

(<30

0 oh

m)

is d

etec

ted

afte

r 15

0 m

s.Ye

llow

Driv

er W

arni

ng,

AB

S p

artly

sw

itche

d of

f•

Che

ck w

iring

of r

elev

ant s

enso

r. (I

s th

ere

a sh

ort c

ircui

t?)

• C

heck

rel

evan

t sen

sor.

(Is

ther

e an

inte

rnal

sho

rt c

ircui

t?)

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

790

- 7

= W

heel

Spe

ed

Sen

sor

(Fro

nt A

xle

Rig

ht)

- m

echa

nica

l sys

tem

not

re

spon

ding

pro

perly

or

out

of a

djus

tmen

t

Pol

ewhe

el F

ailu

re o

f W

heel

Spe

ed S

enso

r (F

ront

Axl

e R

ight

)

The

whe

el s

peed

det

ectio

n sh

all b

e ab

le to

det

ect

insu

ffici

ent a

nd/o

r m

issi

ng te

eth

defin

ed w

ithin

30

00 c

ount

s of

teet

h.

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

the

rele

vant

toot

h w

heel

. (Is

it d

amag

ed o

r di

rty?

)

790

- 8

= W

heel

Spe

ed

Sen

sor

(Fro

nt A

xle

Rig

ht)

- ab

norm

al fr

eque

ncy,

pul

se

wid

th o

r pe

riod

Whe

el S

peed

Sen

sor

Freq

uenc

y To

o H

igh

(Fro

nt A

xle

Rig

ht)

A fa

ilure

is d

etec

ted

if th

e w

heel

spe

ed s

igna

l fr

eque

ncy

is >

3500

Hz.

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

whe

ther

ther

e ar

e in

adm

issi

ble

osci

llatio

n-ef

fect

s at

the

rele

vant

foun

datio

n br

ake.

• C

heck

whe

ther

ther

e ar

e in

adm

issi

ble

osci

llatio

n-ef

fect

s at

the

fittin

g of

the

rele

vant

whe

el s

peed

sen

sor.

• C

heck

the

isol

atio

n of

the

whe

el-s

peed

sen

sor

wiri

ng

(hig

h fr

eque

ncie

s m

ight

be

indu

ced)

.•

If th

e ot

her

effe

cts

wer

e al

read

y ch

ecke

d, c

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at 8

66-O

nTra

c1

(668

-722

1).

790

- 11

= W

heel

Spe

ed

Sen

sor

(Fro

nt A

xle

Rig

ht)

- fa

ilure

mod

e no

t ide

ntifi

able

/ro

ot c

ause

not

kno

wn

Pla

usib

ility

Che

ck o

f W

heel

Spe

ed S

enso

r (F

ront

Axl

e R

ight

)

The

whe

el s

peed

det

ectio

n sh

all m

onito

r an

alog

in

put a

nd d

igita

l inp

ut o

f WA

BA

AS

IC a

nd c

ompa

re

both

sig

nals

whe

ther

or

not t

hey

are

cons

iste

ncy

(pla

usib

ility

che

ck).

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

wiri

ng o

f rel

evan

t whe

el s

peed

sen

sor.

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

4013137a

Page 26: Maintenance Manual MM-1719 Anti-Lock Braking System · PDF fileMaintenance Manual MM-1719 Anti-Lock Braking System (ABS) and Electronic Stability Control (ESC) For Modular Braking

5 SPN FMI Fault Codes

22 Meritor WABCO Maintenance Manual MM-1719 (Issued 06-17)

Figure 5.7

DTC

SP

N F

MI

Failu

re D

etec

tion

Nam

eFa

ilure

Det

ectio

n D

escr

iptio

nW

arni

ng a

nd S

yste

m

Rea

ctio

nR

epai

r

790

- 13

= W

heel

Spe

ed

Sen

sor

(Fro

nt A

xle

Rig

ht)

- ou

t of c

alib

ratio

n

Failu

re D

etec

tion

'Ove

rEqu

ippe

d' o

f W

heel

Spe

ed S

enso

r (F

ront

Axl

e R

ight

)

A fa

ilure

is d

etec

ted

if a

com

pone

nt is

con

nect

ed

to th

e E

CU

, but

it is

not

act

ivat

ed in

the

para

met

er

setti

ngs.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• C

heck

for

corr

ect p

aram

eter

set

ting.

(Is

the

rele

vant

w

heel

spe

ed s

enso

r eq

uipp

ed?)

• C

heck

wiri

ng o

f rel

evan

t sen

sor.

(Is

EC

U p

in o

pen?

)•

Con

tact

the

Mer

itor

OnT

rac™

Cus

tom

er C

all C

ente

r at

86

6-O

nTra

c1 (

668-

7221

).

790

- 14

= W

heel

Spe

ed

Sen

sor

(Fro

nt A

xle

Rig

ht)

- sp

ecia

l ins

truc

tions

Run

Out

Fai

lure

of

Whe

el S

peed

Sen

sor

(Fro

nt A

xle

Rig

ht)

A R

unO

ut fa

ilure

will

be

dete

cted

, if t

he ra

tio o

f m

in/m

ax a

mpl

itude

s is

too

high

.Ye

llow

Driv

er W

arni

ng,

AB

S fu

lly a

vaila

ble

• C

heck

the

rele

vant

toot

h w

heel

. (Is

it d

amag

ed?)

• C

heck

the

rele

vant

whe

el-b

earin

g. (

Is it

loos

ened

?)

791

- 1

= W

heel

Spe

ed

Sen

sor

(Driv

e A

xle

Left)

-

data

val

id, b

ut b

elow

nor

mal

op

erat

ion

rang

e (m

ost

seve

re le

vel)

AirG

ap F

ailu

re o

f W

heel

Spe

ed S

enso

r (D

rive

Axl

e Le

ft)

An

air

gap

failu

re is

det

ecte

d, if

the

volta

ge

ampl

itude

is to

o lo

w (

depe

nds

on s

igna

l fr

eque

ncy)

.

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

the

rele

vant

whe

el s

peed

sen

sor

and

its fi

tting

. Is

the

dist

ance

bet

wee

n to

oth

whe

el a

nd s

enso

r (a

ir ga

p)

too

wid

e?•

Che

ck th

e w

heel

spe

ed s

enso

r fo

r co

rrec

t vol

tage

out

put.

(Is

volta

ge o

utpu

t suf

ficie

nt?)

• If

sens

or a

nd a

ir ga

p ar

e co

rrec

t, co

ntac

t the

Mer

itor

OnT

rac™

Cus

tom

er C

all C

ente

r at

866

-OnT

rac1

(66

8-72

21).

791

- 3

= W

heel

Spe

ed

Sen

sor

(Driv

e A

xle

Left)

-

volta

ge a

bove

nor

mal

or

shor

ted

high

Sho

rt C

ircui

t to

UB

of

Whe

el S

peed

Sen

sor

(Driv

e A

xle

Left)

A s

hort

circ

uit t

o U

B a

t the

whe

el s

peed

sen

sor

(IG

-H o

r IG

-L)

is d

etec

ted

afte

r 15

0 m

s.Ye

llow

Driv

er W

arni

ng,

AB

S p

artly

sw

itche

d of

f•

Che

ck w

iring

of r

elev

ant s

enso

r. (I

s th

ere

a sh

ort c

ircui

t?)

• C

heck

rel

evan

t sen

sor.

(Is

ther

e an

inte

rnal

sho

rt c

ircui

t?)

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

791

- 4

= W

heel

Spe

ed

Sen

sor

(Driv

e A

xle

Left)

-

volta

ge b

elow

nor

mal

or

shor

ted

low

Sho

rt C

ircui

t to

GN

D

of W

heel

Spe

ed

Sen

sor

(Driv

e A

xle

Left)

A s

hort

circ

uit t

o G

ND

at t

he w

heel

spe

ed s

enso

r (I

G-H

or

IG-L

) is

det

ecte

d 15

0 m

s.Ye

llow

Driv

er W

arni

ng,

AB

S p

artly

sw

itche

d of

f•

Che

ck w

iring

of r

elev

ant s

enso

r. (I

s th

ere

a sh

ort c

ircui

t?)

• C

heck

rel

evan

t sen

sor.

(Is

ther

e an

inte

rnal

sho

rt c

ircui

t?)

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

791

- 5

= W

heel

Spe

ed

Sen

sor

(Driv

e A

xle

Left)

-

curr

ent b

elow

nor

mal

or

open

circ

uit

Inte

rrup

tion

of W

heel

S

peed

Sen

sor

(Driv

e A

xle

Left)

An

inte

rrup

tion

(ope

n lo

ad)

at th

e w

heel

spe

ed

sens

or (

IG-H

or

IG-L

) is

det

ecte

d af

ter

150

ms.

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

for

corr

ect p

aram

eter

set

ting.

(Is

the

rele

vant

se

nsor

equ

ippe

d?)

• C

heck

wiri

ng o

f rel

evan

t sen

sor.

(Is

ther

e an

in

terr

uptio

n?)

• C

heck

rel

evan

t sen

sor.

(Is

ther

e an

inte

rnal

inte

rrup

tion?

)•

Con

tact

the

Mer

itor

OnT

rac™

Cus

tom

er C

all C

ente

r at

86

6-O

nTra

c1 (

668-

7221

).

791

- 6

= W

heel

Spe

ed

Sen

sor

(Driv

e A

xle

Left)

-

curr

ent a

bove

nor

mal

or

grou

nded

circ

uit

Sho

rted

Coi

l of W

heel

S

peed

Sen

sor

(Driv

e A

xle

Left)

A s

hort

ed c

oil o

f the

whe

el s

peed

sen

sor

(<30

0 oh

m)

is d

etec

ted

afte

r 15

0 m

s.Ye

llow

Driv

er W

arni

ng,

AB

S p

artly

sw

itche

d of

f•

Che

ck w

iring

of r

elev

ant s

enso

r. (I

s th

ere

a sh

ort c

ircui

t?)

• C

heck

rel

evan

t sen

sor.

(Is

ther

e an

inte

rnal

sho

rt c

ircui

t?)

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

791

- 7

= W

heel

Spe

ed

Sen

sor

(Driv

e A

xle

Left)

-

mec

hani

cal s

yste

m n

ot

resp

ondi

ng p

rope

rly o

r ou

t of

adj

ustm

ent

Pol

ewhe

el F

ailu

re o

f W

heel

Spe

ed S

enso

r (D

rive

Axl

e Le

ft)

The

whe

el s

peed

det

ectio

n sh

all b

e ab

le to

det

ect

insu

ffici

ent a

nd/o

r m

issi

ng te

eth

defin

ed w

ithin

30

00 c

ount

s of

teet

h.

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

the

rele

vant

toot

h w

heel

. (Is

it d

amag

ed o

r di

rty?

)

791

- 8

= W

heel

Spe

ed

Sen

sor

(Driv

e A

xle

Left)

-

abno

rmal

freq

uenc

y, p

ulse

w

idth

or

perio

d

Whe

el S

peed

Sen

sor

Freq

uenc

y To

o H

igh

(Driv

e A

xle

Left)

A fa

ilure

is d

etec

ted

if th

e w

heel

spe

ed s

igna

l fr

eque

ncy

is >

3500

Hz.

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

whe

ther

ther

e ar

e in

adm

issi

ble

osci

llatio

n-ef

fect

s at

the

rele

vant

foun

datio

n br

ake.

• C

heck

whe

ther

ther

e ar

e in

adm

issi

ble

osci

llatio

n-ef

fect

s at

the

fittin

g of

the

rele

vant

whe

el s

peed

sen

sor.

• C

heck

the

isol

atio

n of

the

whe

el-s

peed

sen

sor

wiri

ng

(hig

h fr

eque

ncie

s m

ight

be

indu

ced)

.•

If th

e ot

her

effe

cts

wer

e al

read

y ch

ecke

d, c

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at 8

66-O

nTra

c1

(668

-722

1).

4013138a

Page 27: Maintenance Manual MM-1719 Anti-Lock Braking System · PDF fileMaintenance Manual MM-1719 Anti-Lock Braking System (ABS) and Electronic Stability Control (ESC) For Modular Braking

5 SPN FMI Fault Codes

23Meritor WABCO Maintenance Manual MM-1719 (Issued 06-17)

Figure 5.8

DTC

SP

N F

MI

Failu

re D

etec

tion

Nam

eFa

ilure

Det

ectio

n D

escr

iptio

nW

arni

ng a

nd S

yste

m

Rea

ctio

nR

epai

r

791

- 11

= W

heel

Spe

ed

Sen

sor

(Driv

e A

xle

Left)

-

failu

re m

ode

not i

dent

ifiab

le/

root

cau

se n

ot k

now

n

Pla

usib

ility

Che

ck o

f W

heel

Spe

ed S

enso

r (D

rive

Axl

e Le

ft)

The

whe

el s

peed

det

ectio

n sh

all m

onito

r an

alog

in

put a

nd d

igita

l inp

ut o

f WA

BA

AS

IC a

nd c

ompa

re

both

sig

nals

whe

ther

or

not t

hey

are

cons

iste

ncy

(pla

usib

ility

che

ck).

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

wiri

ng o

f rel

evan

t whe

el s

peed

sen

sor.

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

791

- 13

= W

heel

Spe

ed

Sen

sor

(Driv

e A

xle

Left)

-

out o

f cal

ibra

tion

Failu

re D

etec

tion

'Ove

rEqu

ippe

d' o

f W

heel

Spe

ed S

enso

r (D

rive

Axl

e Le

ft)

A fa

ilure

is d

etec

ted

if a

com

pone

nt is

con

nect

ed

to th

e E

CU

, but

it is

not

act

ivat

ed in

the

para

met

er

setti

ngs.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• C

heck

for

corr

ect p

aram

eter

set

ting.

(Is

the

rele

vant

w

heel

spe

ed s

enso

r eq

uipp

ed?)

• C

heck

wiri

ng o

f rel

evan

t sen

sor.

(Is

EC

U p

in o

pen?

)•

Con

tact

the

Mer

itor

OnT

rac™

Cus

tom

er C

all C

ente

r at

86

6-O

nTra

c1 (

668-

7221

).

791

- 14

= W

heel

Spe

ed

Sen

sor

(Driv

e A

xle

Left)

-

spec

ial i

nstr

uctio

ns

Run

Out

Fai

lure

of

Whe

el S

peed

Sen

sor

(Driv

e A

xle

Left)

A R

unO

ut fa

ilure

will

be

dete

cted

if th

e ra

tio o

f m

in/m

ax a

mpl

itude

s is

too

high

.Ye

llow

Driv

er W

arni

ng,

AB

S fu

lly a

vaila

ble

• C

heck

the

rele

vant

toot

h w

heel

. (Is

it d

amag

ed?)

• C

heck

the

rele

vant

whe

el-b

earin

g. (

Is it

loos

ened

?)

792

- 1

= W

heel

Spe

ed

Sen

sor

(Driv

e A

xle

Rig

ht)

- da

ta v

alid

, but

bel

ow n

orm

al

oper

atio

n ra

nge

(mos

t se

vere

leve

l)

AirG

ap F

ailu

re o

f W

heel

Spe

ed S

enso

r (D

rive

Axl

e R

ight

)

An

air

gap

failu

re is

det

ecte

d if

the

volta

ge

ampl

itude

is to

o lo

w (

depe

nds

on s

igna

l fr

eque

ncy)

.

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

the

rele

vant

whe

el s

peed

sen

sor

and

its fi

tting

. Is

the

dist

ance

bet

wee

n to

oth

whe

el a

nd s

enso

r (a

ir ga

p)

too

wid

e?•

Che

ck th

e w

heel

spe

ed s

enso

r fo

r co

rrec

t vol

tage

out

put.

(Is

volta

ge o

utpu

t suf

ficie

nt?)

• If

sens

or a

nd a

ir ga

p ar

e co

rrec

t, co

ntac

t the

Mer

itor

OnT

rac™

Cus

tom

er C

all C

ente

r at

866

-OnT

rac1

(66

8-72

21).

792

- 3

= W

heel

Spe

ed

Sen

sor

(Driv

e A

xle

Rig

ht)

- vo

ltage

abo

ve n

orm

al o

r sh

orte

d hi

gh

Sho

rt C

ircui

t to

UB

of

Whe

el S

peed

Sen

sor

(Driv

e A

xle

Rig

ht)

A s

hort

circ

uit t

o U

B a

t the

whe

el s

peed

sen

sor

(IG

-H o

r IG

-L)

is d

etec

ted

afte

r 15

0 m

s.Ye

llow

Driv

er W

arni

ng,

AB

S p

artly

sw

itche

d of

f•

Che

ck w

iring

of r

elev

ant s

enso

r. (I

s th

ere

a sh

ort c

ircui

t?)

• C

heck

rel

evan

t sen

sor.

(Is

ther

e an

inte

rnal

sho

rt c

ircui

t?)

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

792

- 4

= W

heel

Spe

ed

Sen

sor

(Driv

e A

xle

Rig

ht)

- vo

ltage

bel

ow n

orm

al o

r sh

orte

d lo

w

Sho

rt C

ircui

t to

GN

D

of W

heel

Spe

ed

Sen

sor

(Driv

e A

xle

Rig

ht)

A s

hort

circ

uit t

o G

ND

at t

he w

heel

spe

ed s

enso

r (I

G-H

or

IG-L

) is

det

ecte

d 15

0 m

s.Ye

llow

Driv

er W

arni

ng,

AB

S p

artly

sw

itche

d of

f•

Che

ck w

iring

of r

elev

ant s

enso

r. (I

s th

ere

a sh

ort c

ircui

t?)

• C

heck

rel

evan

t sen

sor.

(Is

ther

e an

inte

rnal

sho

rt c

ircui

t?)

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

792

- 5

= W

heel

Spe

ed

Sen

sor

(Driv

e A

xle

Rig

ht)

- cu

rren

t bel

ow n

orm

al o

r op

en c

ircui

t

Inte

rrup

tion

of W

heel

S

peed

Sen

sor

(Driv

e A

xle

Rig

ht)

An

inte

rrup

tion

(ope

n lo

ad)

at th

e w

heel

spe

ed

sens

or (

IG-H

or

IG-L

) is

det

ecte

d af

ter

150

ms.

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

for

corr

ect p

aram

eter

set

ting.

(Is

the

rele

vant

se

nsor

equ

ippe

d?)

• C

heck

wiri

ng o

f rel

evan

t sen

sor.

(Is

ther

e an

in

terr

uptio

n?)

• C

heck

rel

evan

t sen

sor.

(Is

ther

e an

inte

rnal

inte

rrup

tion?

)•

Con

tact

the

Mer

itor

OnT

rac™

Cus

tom

er C

all C

ente

r at

86

6-O

nTra

c1 (

668-

7221

).

792

- 6

= W

heel

Spe

ed

Sen

sor

(Driv

e A

xle

Rig

ht)

- cu

rren

t abo

ve n

orm

al o

r gr

ound

ed c

ircui

t

Sho

rted

Coi

l of W

heel

S

peed

Sen

sor

(Driv

e A

xle

Rig

ht)

A s

hort

ed c

oil o

f the

whe

el s

peed

sen

sor

(<30

0 oh

m)

is d

etec

ted

afte

r 15

0 m

s.Ye

llow

Driv

er W

arni

ng,

AB

S p

artly

sw

itche

d of

f•

Che

ck w

iring

of r

elev

ant s

enso

r. (I

s th

ere

a sh

ort c

ircui

t?)

• C

heck

rel

evan

t sen

sor.

(Is

ther

e an

inte

rnal

sho

rt c

ircui

t?)

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

792

- 7

= W

heel

Spe

ed

Sen

sor

(Driv

e A

xle

Rig

ht)

- m

echa

nica

l sys

tem

not

re

spon

ding

pro

perly

or

out

of a

djus

tmen

t

Pol

ewhe

el F

ailu

re o

f W

heel

Spe

ed S

enso

r (D

rive

Axl

e R

ight

)

The

whe

el s

peed

det

ectio

n sh

all b

e ab

le to

det

ect

insu

ffici

ent a

nd/o

r m

issi

ng te

eth

defin

ed w

ithin

30

00 c

ount

s of

teet

h.

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

the

rele

vant

toot

h w

heel

. (Is

it d

amag

ed o

r di

rty?

)

4013139a

Page 28: Maintenance Manual MM-1719 Anti-Lock Braking System · PDF fileMaintenance Manual MM-1719 Anti-Lock Braking System (ABS) and Electronic Stability Control (ESC) For Modular Braking

5 SPN FMI Fault Codes

24 Meritor WABCO Maintenance Manual MM-1719 (Issued 06-17)

Figure 5.9

DTC

SP

N F

MI

Failu

re D

etec

tion

Nam

eFa

ilure

Det

ectio

n D

escr

iptio

nW

arni

ng a

nd S

yste

m

Rea

ctio

nR

epai

r

792

- 8

= W

heel

Spe

ed

Sen

sor

(Driv

e A

xle

Rig

ht)

- ab

norm

al fr

eque

ncy,

pul

se

wid

th o

r pe

riod

Whe

el S

peed

Sen

sor

Freq

uenc

y To

o H

igh

(Driv

e A

xle

Rig

ht)

A fa

ilure

is d

etec

ted

if th

e w

heel

spe

ed s

igna

l fr

eque

ncy

is >

3500

Hz.

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

whe

ther

ther

e ar

e in

adm

issi

ble

osci

llatio

n-ef

fect

s at

the

rele

vant

foun

datio

n br

ake.

• C

heck

whe

ther

ther

e ar

e in

adm

issi

ble

osci

llatio

n-ef

fect

s at

the

fittin

g of

the

rele

vant

whe

el s

peed

sen

sor.

• C

heck

the

isol

atio

n of

the

whe

el-s

peed

sen

sor

wiri

ng

(hig

h fr

eque

ncie

s m

ight

be

indu

ced)

.•

If th

e ot

her

effe

cts

wer

e al

read

y ch

ecke

d, c

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at 8

66-O

nTra

c1

(668

-722

1).

792

- 11

= W

heel

Spe

ed

Sen

sor

(Driv

e A

xle

Rig

ht)

- fa

ilure

mod

e no

t ide

ntifi

able

/ro

ot c

ause

not

kno

wn

Pla

usib

ility

Che

ck o

f W

heel

Spe

ed S

enso

r (D

rive

Axl

e R

ight

)

The

whe

el s

peed

det

ectio

n sh

all m

onito

r an

alog

in

put a

nd d

igita

l inp

ut o

f WA

BA

AS

IC a

nd c

ompa

re

both

sig

nals

whe

ther

or

not t

hey

are

cons

iste

ncy

(pla

usib

ility

che

ck).

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

wiri

ng o

f rel

evan

t whe

el s

peed

sen

sor.

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

792

- 13

= W

heel

Spe

ed

Sen

sor

(Driv

e A

xle

Rig

ht)

- ou

t of c

alib

ratio

n

Failu

re D

etec

tion

'Ove

rEqu

ippe

d' o

f W

heel

Spe

ed S

enso

r (D

rive

Axl

e R

ight

)

A fa

ilure

is d

etec

ted

if a

com

pone

nt is

con

nect

ed

to th

e E

CU

, but

it is

not

act

ivat

ed in

the

para

met

er

setti

ngs.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• C

heck

for

corr

ect p

aram

eter

set

ting.

(Is

the

rele

vant

w

heel

spe

ed s

enso

r eq

uipp

ed?)

• C

heck

wiri

ng o

f rel

evan

t sen

sor.

(Is

EC

U p

in o

pen?

)•

Con

tact

the

Mer

itor

OnT

rac™

Cus

tom

er C

all C

ente

r at

86

6-O

nTra

c1 (

668-

7221

).

792

- 14

= W

heel

Spe

ed

Sen

sor

(Driv

e A

xle

Rig

ht)

- sp

ecia

l ins

truc

tions

Run

Out

Fai

lure

of

Whe

el S

peed

Sen

sor

(Driv

e A

xle

Rig

ht)

A R

unO

ut fa

ilure

will

be

dete

cted

if th

e ra

tio o

f m

in/m

ax a

mpl

itude

s is

too

high

.Ye

llow

Driv

er W

arni

ng,

AB

S fu

lly a

vaila

ble

• C

heck

the

rele

vant

toot

h w

heel

. (Is

it d

amag

ed?)

• C

heck

the

rele

vant

whe

el-b

earin

g. (

Is it

loos

ened

?)

793

- 1

= W

heel

Spe

ed

Sen

sor

(Int

erm

edia

te A

xle

Left)

- d

ata

valid

, but

bel

ow

norm

al o

pera

tion

rang

e (m

ost s

ever

e le

vel)

AirG

ap F

ailu

re o

f W

heel

Spe

ed S

enso

r (I

nter

med

iate

Axl

e Le

ft)

An

air

gap

failu

re is

det

ecte

d if

the

volta

ge

ampl

itude

is to

o lo

w (

depe

nds

on s

igna

l fr

eque

ncy)

.

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

the

rele

vant

whe

el s

peed

sen

sor

and

its fi

tting

. Is

the

dist

ance

bet

wee

n to

oth

whe

el a

nd s

enso

r (a

ir ga

p)

too

wid

e?•

Che

ck th

e w

heel

spe

ed s

enso

r fo

r co

rrec

t vol

tage

out

put.

(Is

volta

ge o

utpu

t suf

ficie

nt?)

• If

sens

or a

nd a

ir ga

p ar

e co

rrec

t, co

ntac

t the

Mer

itor

OnT

rac™

Cus

tom

er C

all C

ente

r at

866

-OnT

rac1

(66

8-72

21).

793

- 3

= W

heel

Spe

ed

Sen

sor

(Int

erm

edia

te A

xle

Left)

- v

olta

ge a

bove

nor

mal

or

sho

rted

hig

h

Sho

rt C

ircui

t to

UB

of

Whe

el S

peed

Sen

sor

(Int

erm

edia

te A

xle

Left)

A s

hort

circ

uit t

o U

B a

t the

whe

el s

peed

sen

sor

(IG

-H o

r IG

-L)

is d

etec

ted

afte

r 15

0 m

s.Ye

llow

Driv

er W

arni

ng,

AB

S p

artly

sw

itche

d of

f•

Che

ck w

iring

of r

elev

ant s

enso

r. (I

s th

ere

a sh

ort c

ircui

t?)

• C

heck

rel

evan

t sen

sor.

(Is

ther

e an

inte

rnal

sho

rt c

ircui

t?)

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

793

- 4

= W

heel

Spe

ed

Sen

sor

(Int

erm

edia

te A

xle

Left)

- v

olta

ge b

elow

nor

mal

or

sho

rted

low

Sho

rt C

ircui

t to

GN

D

of W

heel

Spe

ed

Sen

sor

(Int

erm

edia

te

Axl

e Le

ft)

A s

hort

circ

uit t

o G

ND

at t

he w

heel

spe

ed s

enso

r (I

G-H

or

IG-L

) is

det

ecte

d 15

0 m

s.Ye

llow

Driv

er W

arni

ng,

AB

S p

artly

sw

itche

d of

f•

Che

ck w

iring

of r

elev

ant s

enso

r. (I

s th

ere

a sh

ort c

ircui

t?)

• C

heck

rel

evan

t sen

sor.

(Is

ther

e an

inte

rnal

sho

rt c

ircui

t?)

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

793

- 5

= W

heel

Spe

ed

Sen

sor

(Int

erm

edia

te A

xle

Left)

- c

urre

nt b

elow

nor

mal

or

ope

n ci

rcui

t

Inte

rrup

tion

of W

heel

S

peed

Sen

sor

(Int

erm

edia

te A

xle

Left)

An

inte

rrup

tion

(ope

n lo

ad)

at th

e w

heel

spe

ed

sens

or (

IG-H

or

IG-L

) is

det

ecte

d af

ter

150

ms.

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

for

corr

ect p

aram

eter

set

ting.

(Is

the

rele

vant

se

nsor

equ

ippe

d?)

• C

heck

wiri

ng o

f rel

evan

t sen

sor.

(Is

ther

e an

in

terr

uptio

n?)

• C

heck

rel

evan

t sen

sor.

(Is

ther

e an

inte

rnal

inte

rrup

tion?

)•

Con

tact

the

Mer

itor

OnT

rac™

Cus

tom

er C

all C

ente

r at

86

6-O

nTra

c1 (

668-

7221

).

793

- 6

= W

heel

Spe

ed

Sen

sor

(Int

erm

edia

te A

xle

Left)

- c

urre

nt a

bove

nor

mal

or

gro

unde

d ci

rcui

t

Sho

rted

Coi

l of

Whe

el S

peed

Sen

sor

(Int

erm

edia

te A

xle

Left)

A s

hort

ed c

oil o

f the

whe

el s

peed

sen

sor

(<30

0 oh

m)

is d

etec

ted

afte

r 15

0 m

s.Ye

llow

Driv

er W

arni

ng,

AB

S p

artly

sw

itche

d of

f•

Che

ck w

iring

of r

elev

ant s

enso

r. (I

s th

ere

a sh

ort c

ircui

t?)

• C

heck

rel

evan

t sen

sor.

(Is

ther

e an

inte

rnal

sho

rt c

ircui

t?)

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

793

- 7

= W

heel

Spe

ed

Sen

sor

(Int

erm

edia

te A

xle

Left)

- m

echa

nica

l sys

tem

no

t res

pond

ing

prop

erly

or

out o

f adj

ustm

ent

Pol

ewhe

el F

ailu

re o

f W

heel

Spe

ed S

enso

r (I

nter

med

iate

Axl

e Le

ft)

The

whe

el s

peed

det

ectio

n sh

all b

e ab

le to

det

ect

insu

ffici

ent a

nd/o

r m

issi

ng te

eth

defin

ed w

ithin

30

00 c

ount

s of

teet

h.

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

the

rele

vant

toot

h w

heel

. (Is

it d

amag

ed o

r di

rty?

)

4013140a

Page 29: Maintenance Manual MM-1719 Anti-Lock Braking System · PDF fileMaintenance Manual MM-1719 Anti-Lock Braking System (ABS) and Electronic Stability Control (ESC) For Modular Braking

5 SPN FMI Fault Codes

25Meritor WABCO Maintenance Manual MM-1719 (Issued 06-17)

Figure 5.10

DTC

SP

N F

MI

Failu

re D

etec

tion

Nam

eFa

ilure

Det

ectio

n D

escr

iptio

nW

arni

ng a

nd S

yste

m

Rea

ctio

nR

epai

r

793

- 8

= W

heel

Spe

ed

Sen

sor

(Int

erm

edia

te A

xle

Left)

- a

bnor

mal

freq

uenc

y,

puls

e w

idth

or

perio

d

Whe

el S

peed

Sen

sor

Freq

uenc

y To

o H

igh

(Int

erm

edia

te A

xle

Left)

A fa

ilure

is d

etec

ted

if th

e w

heel

spe

ed s

igna

l fr

eque

ncy

is >

3500

Hz.

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

whe

ther

ther

e ar

e in

adm

issi

ble

osci

llatio

n-ef

fect

s at

the

rele

vant

foun

datio

n br

ake.

• C

heck

whe

ther

ther

e ar

e in

adm

issi

ble

osci

llatio

n-ef

fect

s at

the

fittin

g of

the

rele

vant

whe

el s

peed

sen

sor.

• C

heck

the

isol

atio

n of

the

whe

el-s

peed

sen

sor

wiri

ng

(hig

h fr

eque

ncie

s m

ight

be

indu

ced)

.•

If th

e ot

her

effe

cts

wer

e al

read

y ch

ecke

d, c

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at 8

66-O

nTra

c1

(668

-722

1).

793

- 11

= W

heel

Spe

ed

Sen

sor

(Int

erm

edia

te A

xle

Left)

- fa

ilure

mod

e no

t id

entifi

able

/roo

t cau

se n

ot

know

n

Pla

usib

ility

Che

ck o

f W

heel

Spe

ed S

enso

r (I

nter

med

iate

Axl

e Le

ft)

The

whe

el s

peed

det

ectio

n sh

all m

onito

r an

alog

in

put a

nd d

igita

l inp

ut o

f WA

BA

AS

IC a

nd c

ompa

re

both

sig

nals

whe

ther

or

not t

hey

are

cons

iste

ncy

(pla

usib

ility

che

ck).

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

wiri

ng o

f rel

evan

t whe

el s

peed

sen

sor.

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

793

- 13

= W

heel

Spe

ed

Sen

sor

(Int

erm

edia

te A

xle

Left)

- o

ut o

f cal

ibra

tion

Failu

re D

etec

tion

'Ove

rEqu

ippe

d' o

f W

heel

Spe

ed S

enso

r (I

nter

med

iate

Axl

e Le

ft)

A fa

ilure

is d

etec

ted

if a

com

pone

nt is

con

nect

ed

to th

e E

CU

, but

it is

not

act

ivat

ed in

the

para

met

er

setti

ngs.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• C

heck

for

corr

ect p

aram

eter

set

ting.

(Is

the

rele

vant

w

heel

spe

ed s

enso

r eq

uipp

ed?)

• C

heck

wiri

ng o

f rel

evan

t sen

sor.

(Is

EC

U p

in o

pen?

)•

Con

tact

the

Mer

itor

OnT

rac™

Cus

tom

er C

all C

ente

r at

86

6-O

nTra

c1 (

668-

7221

).

793

- 14

= W

heel

Spe

ed

Sen

sor

(Int

erm

edia

te A

xle

Left)

- s

peci

al in

stru

ctio

ns

Run

Out

Fai

lure

of

Whe

el S

peed

Sen

sor

(Int

erm

edia

te A

xle

Left)

A R

unO

ut fa

ilure

will

be

dete

cted

if th

e ra

tio o

f m

in/m

ax a

mpl

itude

s is

too

high

.Ye

llow

Driv

er W

arni

ng,

AB

S fu

lly a

vaila

ble

• C

heck

the

rele

vant

toot

h w

heel

. (Is

it d

amag

ed?)

• C

heck

the

rele

vant

whe

el-b

earin

g. (

Is it

loos

ened

?)

794

- 1

= W

heel

Spe

ed

Sen

sor

(Int

erm

edia

te A

xle

Rig

ht)

- da

ta v

alid

, but

bel

ow

norm

al o

pera

tion

rang

e (m

ost s

ever

e le

vel)

AirG

ap F

ailu

re o

f W

heel

Spe

ed S

enso

r (I

nter

med

iate

Axl

e R

ight

)

An

air

gap

failu

re is

det

ecte

d if

the

volta

ge

ampl

itude

is to

o lo

w (

depe

nds

on s

igna

l fr

eque

ncy)

.

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

the

rele

vant

whe

el s

peed

sen

sor

and

its fi

tting

. Is

the

dist

ance

bet

wee

n to

oth

whe

el a

nd s

enso

r (a

ir ga

p)

too

wid

e?•

Che

ck th

e w

heel

spe

ed s

enso

r fo

r co

rrec

t vol

tage

out

put.

(Is

volta

ge o

utpu

t suf

ficie

nt?)

• If

sens

or a

nd a

ir ga

p ar

e co

rrec

t, co

ntac

t the

Mer

itor

OnT

rac™

Cus

tom

er C

all C

ente

r at

866

-OnT

rac1

(66

8-72

21).

794

- 3

= W

heel

Spe

ed

Sen

sor

(Int

erm

edia

te A

xle

Rig

ht)

- vo

ltage

abo

ve

norm

al o

r sh

orte

d hi

gh

Sho

rt C

ircui

t to

UB

of

Whe

el S

peed

Sen

sor

(Int

erm

edia

te A

xle

Rig

ht)

A s

hort

circ

uit t

o U

B a

t the

whe

el s

peed

sen

sor

(IG

-H o

r IG

-L)

is d

etec

ted

afte

r 15

0 m

s.Ye

llow

Driv

er W

arni

ng,

AB

S p

artly

sw

itche

d of

f•

Che

ck w

iring

of r

elev

ant s

enso

r. (I

s th

ere

a sh

ort c

ircui

t?)

• C

heck

rel

evan

t sen

sor.

(Is

ther

e an

inte

rnal

sho

rt c

ircui

t?)

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

794

- 4

= W

heel

Spe

ed

Sen

sor

(Int

erm

edia

te A

xle

Rig

ht)

- vo

ltage

bel

ow

norm

al o

r sh

orte

d lo

w

Sho

rt C

ircui

t to

GN

D

of W

heel

Spe

ed

Sen

sor

(Int

erm

edia

te

Axl

e R

ight

)

A s

hort

circ

uit t

o G

ND

at t

he w

heel

spe

ed s

enso

r (I

G-H

or

IG-L

) is

det

ecte

d 15

0 m

s.Ye

llow

Driv

er W

arni

ng,

AB

S p

artly

sw

itche

d of

f•

Che

ck w

iring

of r

elev

ant s

enso

r. (I

s th

ere

a sh

ort c

ircui

t?)

• C

heck

rel

evan

t sen

sor.

(Is

ther

e an

inte

rnal

sho

rt c

ircui

t?)

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

794

- 5

= W

heel

Spe

ed

Sen

sor

(Int

erm

edia

te A

xle

Rig

ht)

- cu

rren

t bel

ow

norm

al o

r op

en c

ircui

t

Inte

rrup

tion

of W

heel

S

peed

Sen

sor

(Int

erm

edia

te A

xle

Rig

ht)

An

inte

rrup

tion

(ope

n lo

ad)

at th

e w

heel

spe

ed

sens

or (

IG-H

or

IG-L

) is

det

ecte

d af

ter

150

ms.

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

for

corr

ect p

aram

eter

set

ting.

(Is

the

rele

vant

se

nsor

equ

ippe

d?)

• C

heck

wiri

ng o

f rel

evan

t sen

sor.

(Is

ther

e an

in

terr

uptio

n?)

• C

heck

rel

evan

t sen

sor.

(Is

ther

e an

inte

rnal

inte

rrup

tion?

)•

Con

tact

the

Mer

itor

OnT

rac™

Cus

tom

er C

all C

ente

r at

86

6-O

nTra

c1 (

668-

7221

).

794

- 6

= W

heel

Spe

ed

Sen

sor

(Int

erm

edia

te A

xle

Rig

ht)

- cu

rren

t abo

ve

norm

al o

r gr

ound

ed c

ircui

t

Sho

rted

Coi

l of

Whe

el S

peed

Sen

sor

(Int

erm

edia

te A

xle

Rig

ht)

A s

hort

ed c

oil o

f the

whe

el s

peed

sen

sor

(<30

0 oh

m)

is d

etec

ted

afte

r 15

0 m

s.Ye

llow

Driv

er W

arni

ng,

AB

S p

artly

sw

itche

d of

f•

Che

ck w

iring

of r

elev

ant s

enso

r. (I

s th

ere

a sh

ort c

ircui

t?)

• C

heck

rel

evan

t sen

sor.

(Is

ther

e an

inte

rnal

sho

rt c

ircui

t?)

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

4013141a

Page 30: Maintenance Manual MM-1719 Anti-Lock Braking System · PDF fileMaintenance Manual MM-1719 Anti-Lock Braking System (ABS) and Electronic Stability Control (ESC) For Modular Braking

5 SPN FMI Fault Codes

26 Meritor WABCO Maintenance Manual MM-1719 (Issued 06-17)

Figure 5.11

DTC

SP

N F

MI

Failu

re D

etec

tion

Nam

eFa

ilure

Det

ectio

n D

escr

iptio

nW

arni

ng a

nd S

yste

m

Rea

ctio

nR

epai

r

794

- 7

= W

heel

Spe

ed

Sen

sor

(Int

erm

edia

te A

xle

Rig

ht)

- m

echa

nica

l sys

tem

no

t res

pond

ing

prop

erly

or

out o

f adj

ustm

ent

Pol

ewhe

el F

ailu

re o

f W

heel

Spe

ed S

enso

r (I

nter

med

iate

Axl

e R

ight

)

The

whe

el s

peed

det

ectio

n sh

all b

e ab

le to

det

ect

insu

ffici

ent a

nd/o

r m

issi

ng te

eth

defin

ed w

ithin

30

00 c

ount

s of

teet

h.

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

the

rele

vant

toot

h w

heel

. (Is

it d

amag

ed o

r di

rty?

)

794

- 8

= W

heel

Spe

ed

Sen

sor

(Int

erm

edia

te A

xle

Rig

ht)

- ab

norm

al fr

eque

ncy,

pu

lse

wid

th o

r pe

riod

Whe

el S

peed

Sen

sor

Freq

uenc

y To

o H

igh

(Int

erm

edia

te A

xle

Rig

ht)

A fa

ilure

is d

etec

ted

if th

e w

heel

spe

ed s

igna

l fr

eque

ncy

is >

3500

Hz.

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

whe

ther

ther

e ar

e in

adm

issi

ble

osci

llatio

n-ef

fect

s at

the

rele

vant

foun

datio

n br

ake.

• C

heck

whe

ther

ther

e ar

e in

adm

issi

ble

osci

llatio

n-ef

fect

s at

the

fittin

g of

the

rele

vant

whe

el s

peed

sen

sor.

• C

heck

the

isol

atio

n of

the

whe

el-s

peed

sen

sor

wiri

ng

(hig

h fr

eque

ncie

s m

ight

be

indu

ced)

.•

If th

e ot

her

effe

cts

wer

e al

read

y ch

ecke

d, c

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at 8

66-O

nTra

c1

(668

-722

1).

794

- 11

= W

heel

Spe

ed

Sen

sor

(Int

erm

edia

te A

xle

Rig

ht)

- fa

ilure

mod

e no

t id

entifi

able

/roo

t cau

se n

ot

know

n

Pla

usib

ility

Che

ck o

f W

heel

Spe

ed S

enso

r (I

nter

med

iate

Axl

e R

ight

)

The

whe

el s

peed

det

ectio

n sh

all m

onito

r an

alog

in

put a

nd d

igita

l inp

ut o

f WA

BA

AS

IC a

nd c

ompa

re

both

sig

nals

whe

ther

or

not t

hey

are

cons

iste

ncy

(pla

usib

ility

che

ck).

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

wiri

ng o

f rel

evan

t whe

el s

peed

sen

sor.

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

794

- 13

= W

heel

Spe

ed

Sen

sor

(Int

erm

edia

te A

xle

Rig

ht)

- ou

t of c

alib

ratio

n

Failu

re D

etec

tion

'Ove

rEqu

ippe

d' o

f W

heel

Spe

ed S

enso

r (I

nter

med

iate

Axl

e R

ight

)

A fa

ilure

is d

etec

ted

if a

com

pone

nt is

con

nect

ed

to th

e E

CU

, but

it is

not

act

ivat

ed in

the

para

met

er

setti

ngs.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• C

heck

for

corr

ect p

aram

eter

set

ting.

(Is

the

rele

vant

w

heel

spe

ed s

enso

r eq

uipp

ed?)

• C

heck

wiri

ng o

f rel

evan

t sen

sor.

(Is

EC

U p

in o

pen?

)•

Con

tact

the

Mer

itor

OnT

rac™

Cus

tom

er C

all C

ente

r at

86

6-O

nTra

c1 (

668-

7221

).

794

- 14

= W

heel

Spe

ed

Sen

sor

(Int

erm

edia

te A

xle

Rig

ht)

- sp

ecia

l ins

truc

tions

Run

Out

Fai

lure

of

Whe

el S

peed

Sen

sor

(Int

erm

edia

te A

xle

Rig

ht)

A R

unO

ut fa

ilure

will

be

dete

cted

, if t

he ra

tio o

f m

in/m

ax a

mpl

itude

s is

too

high

.Ye

llow

Driv

er W

arni

ng,

AB

S fu

lly a

vaila

ble

• C

heck

the

rele

vant

toot

h w

heel

. (Is

it d

amag

ed?)

• C

heck

the

rele

vant

whe

el-b

earin

g. (

Is it

loos

ened

?)

795

- 3

= P

ress

ure

Mod

ulat

ion

Valv

e A

BS

(Fro

nt

Axl

e Le

ft) -

vol

tage

abo

ve

norm

al o

r sh

orte

d hi

gh

Failu

re d

etec

tion

'Sho

rtU

b' a

t Abs

Inle

t/A

bsO

utle

t (Fr

ont A

xle

Left)

A s

hort

circ

uit t

o U

B o

f the

rel

evan

t act

uato

r is

det

ecte

d in

act

ive

and

inac

tive

stat

es. T

he

dete

ctio

n tim

e is

200

ms.

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

wiri

ng o

f rel

evan

t val

ve/a

ctua

tor.

(Is

ther

e a

shor

t ci

rcui

t?)

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

795

- 4

= P

ress

ure

Mod

ulat

ion

Valv

e A

BS

(Fro

nt

Axl

e Le

ft) -

vol

tage

bel

ow

norm

al o

r sh

orte

d lo

w

Failu

re d

etec

tion

'Sho

rtG

nd' a

t A

bsIn

let/A

bsO

utle

t (F

ront

Axl

e Le

ft)

A s

hort

circ

uit t

o G

ND

of t

he r

elev

ant a

ctua

tor

is d

etec

ted

in a

ctiv

e an

d in

activ

e st

ates

. The

de

tect

ion

time

is 2

00 m

s.R

emar

k: A

sho

rted

load

als

o le

ads

to a

sho

rt to

G

ND

failu

re. A

sho

rted

load

is d

etec

ted:

-

Afte

r 20

0 m

s af

ter

igni

tion-

on a

nd a

lso

if va

lve

is

activ

ated

.-

Afte

r 10

00 m

s if

valv

e is

not

act

ivat

ed.

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

wiri

ng o

f rel

evan

t val

ve/a

ctua

tor.

(Is

ther

e a

shor

t ci

rcui

t?)

• C

heck

rel

evan

t val

ve/a

ctua

tor.

(Is

ther

e an

inte

rnal

sho

rt

circ

uit?

)•

Con

tact

the

Mer

itor

OnT

rac™

Cus

tom

er C

all C

ente

r at

86

6-O

nTra

c1 (

668-

7221

).

795

- 5

= P

ress

ure

Mod

ulat

ion

Valv

e A

BS

(Fro

nt

Axl

e Le

ft) -

cur

rent

bel

ow

norm

al o

r op

en c

ircui

t

Failu

re d

etec

tion

'Inte

rrup

tion'

at

Abs

Inle

t/Abs

Out

let

(Fro

nt A

xle

Left)

An

inte

rrup

tion

of th

e re

leva

nt a

ctua

tor

is d

etec

ted

in a

ctiv

e an

d in

activ

e st

ates

. The

det

ectio

n tim

e is

200

ms.

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

for

corr

ect p

aram

eter

set

ting.

(Is

the

rele

vant

va

lve/

actu

ator

equ

ippe

d?)

• C

heck

wiri

ng o

f rel

evan

t val

ve/a

ctua

tor.

(Is

ther

e an

in

terr

uptio

n?)

• C

heck

rel

evan

t val

ve/a

ctua

tor.

(Is

ther

e an

inte

rnal

in

terr

uptio

n?)

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

4013142a

Page 31: Maintenance Manual MM-1719 Anti-Lock Braking System · PDF fileMaintenance Manual MM-1719 Anti-Lock Braking System (ABS) and Electronic Stability Control (ESC) For Modular Braking

5 SPN FMI Fault Codes

27Meritor WABCO Maintenance Manual MM-1719 (Issued 06-17)

Figure 5.12D

TC S

PN

FM

IFa

ilure

Det

ectio

n N

ame

Failu

re D

etec

tion

Des

crip

tion

War

ning

and

Sys

tem

R

eact

ion

Rep

air

795

- 13

= P

ress

ure

Mod

ulat

ion

Valv

e A

BS

(Fro

nt

Axl

e Le

ft) -

out

of c

alib

ratio

n

Failu

re d

etec

tion

'Ove

rEqu

ippe

d' a

t A

bsIn

let/A

bsO

utle

t (F

ront

Axl

e Le

ft)

A fa

ilure

is d

etec

ted

if a

com

pone

nt is

con

nect

ed

to th

e E

CU

, but

it is

not

act

ivat

ed in

the

para

met

er

setti

ngs.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• C

heck

for

corr

ect p

aram

eter

set

ting.

(Is

the

rele

vant

va

lve/

actu

ator

equ

ippe

d?)

• C

heck

wiri

ng o

f rel

evan

t val

ve/a

ctua

tor.

(Is

EC

U p

in

open

?)•

Con

tact

the

Mer

itor

OnT

rac™

Cus

tom

er C

all C

ente

r at

86

6-O

nTra

c1 (

668-

7221

).

796

- 3

= P

ress

ure

Mod

ulat

ion

Valv

e A

BS

(Fro

nt

Axl

e R

ight

) -

volta

ge a

bove

no

rmal

or

shor

ted

high

Failu

re d

etec

tion

'Sho

rtU

b' a

t Abs

Inle

t/A

bsO

utle

t (Fr

ont A

xle

Rig

ht)

A s

hort

circ

uit t

o U

B o

f the

rel

evan

t act

uato

r is

det

ecte

d in

act

ive

and

inac

tive

stat

es. T

he

dete

ctio

n tim

e is

200

ms.

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

wiri

ng o

f rel

evan

t val

ve/a

ctua

tor.

(Is

ther

e a

shor

t ci

rcui

t?)

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

796

- 4

= P

ress

ure

Mod

ulat

ion

Valv

e A

BS

(Fro

nt

Axl

e R

ight

) -

volta

ge b

elow

no

rmal

or

shor

ted

low

Failu

re d

etec

tion

'Sho

rtG

nd' a

t A

bsIn

let/A

bsO

utle

t (F

ront

Axl

e R

ight

)

A s

hort

circ

uit t

o G

ND

of t

he r

elev

ant a

ctua

tor

is d

etec

ted

in a

ctiv

e an

d in

activ

e st

ates

. The

de

tect

ion

time

is 2

00 m

s.R

emar

k: A

sho

rted

load

als

o le

ads

to a

sho

rt to

G

ND

failu

re. A

sho

rted

load

is d

etec

ted:

-

Afte

r 20

0 m

s af

ter

igni

tion-

on a

nd a

lso

if va

lve

is

activ

ated

.-

Afte

r 10

00 m

s if

valv

e is

not

act

ivat

ed.

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

wiri

ng o

f rel

evan

t val

ve/a

ctua

tor.

(Is

ther

e a

shor

t ci

rcui

t?)

• C

heck

rel

evan

t val

ve/a

ctua

tor.

(Is

ther

e an

inte

rnal

sho

rt

circ

uit?

)•

Con

tact

the

Mer

itor

OnT

rac™

Cus

tom

er C

all C

ente

r at

86

6-O

nTra

c1 (

668-

7221

).

796

- 5

= P

ress

ure

Mod

ulat

ion

Valv

e A

BS

(Fro

nt

Axl

e R

ight

) -

curr

ent b

elow

no

rmal

or

open

circ

uit

Failu

re d

etec

tion

'Inte

rrup

tion'

at

Abs

Inle

t/Abs

Out

let

(Fro

nt A

xle

Rig

ht)

An

inte

rrup

tion

of th

e re

leva

nt a

ctua

tor

is d

etec

ted

in a

ctiv

e an

d in

activ

e st

ates

. The

det

ectio

n tim

e is

200

ms.

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

for

corr

ect p

aram

eter

set

ting.

(Is

the

rele

vant

va

lve/

actu

ator

equ

ippe

d?)

• C

heck

wiri

ng o

f rel

evan

t val

ve/a

ctua

tor.

(Is

ther

e an

in

terr

uptio

n?)

• C

heck

rel

evan

t val

ve/a

ctua

tor.

(Is

ther

e an

inte

rnal

in

terr

uptio

n?)

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

796

- 13

= P

ress

ure

Mod

ulat

ion

Valv

e A

BS

(F

ront

Axl

e R

ight

) -

out o

f ca

libra

tion

Failu

re d

etec

tion

'Ove

rEqu

ippe

d' a

t A

bsIn

let/A

bsO

utle

t (F

ront

Axl

e R

ight

)

A fa

ilure

is d

etec

ted

if a

com

pone

nt is

con

nect

ed

to th

e E

CU

, but

it is

not

act

ivat

ed in

the

para

met

er

setti

ngs.

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

for

corr

ect p

aram

eter

set

ting.

(Is

the

rele

vant

va

lve/

actu

ator

equ

ippe

d?)

• C

heck

wiri

ng o

f rel

evan

t val

ve/a

ctua

tor.

(Is

EC

U p

in

open

?)•

Con

tact

the

Mer

itor

OnT

rac™

Cus

tom

er C

all C

ente

r at

86

6-O

nTra

c1 (

668-

7221

).

797

- 3

= P

ress

ure

Mod

ulat

ion

Valv

e A

BS

(D

rive

Axl

e Le

ft) -

vol

tage

ab

ove

norm

al o

r sh

orte

d hi

gh

Failu

re d

etec

tion

'Sho

rtU

b' a

t Abs

Inle

t/A

bsO

utle

t (D

rive

Axl

e Le

ft)

A s

hort

circ

uit t

o U

B o

f the

rel

evan

t act

uato

r is

det

ecte

d in

act

ive

and

inac

tive

stat

es. T

he

dete

ctio

n tim

e is

200

ms.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• C

heck

wiri

ng o

f rel

evan

t val

ve/a

ctua

tor.

(Is

ther

e a

shor

t ci

rcui

t?)

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

797

- 4

= P

ress

ure

Mod

ulat

ion

Valv

e A

BS

(D

rive

Axl

e Le

ft) -

vol

tage

be

low

nor

mal

or

shor

ted

low

Failu

re d

etec

tion

'Sho

rtG

nd' a

t A

bsIn

let/A

bsO

utle

t (D

rive

Axl

e Le

ft)

A s

hort

circ

uit t

o G

ND

of t

he r

elev

ant a

ctua

tor

is d

etec

ted

in a

ctiv

e an

d in

activ

e st

ates

. The

de

tect

ion

time

is 2

00 m

s.R

emar

k: A

sho

rted

load

als

o le

ads

to a

sho

rt to

G

ND

failu

re. A

sho

rted

load

is d

etec

ted:

-

Afte

r 20

0 m

s af

ter

igni

tion-

on a

nd a

lso

if va

lve

is

activ

ated

.-

Afte

r 10

00 m

s if

valv

e is

not

act

ivat

ed.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• C

heck

wiri

ng o

f rel

evan

t val

ve/a

ctua

tor.

(Is

ther

e a

shor

t ci

rcui

t?)

• C

heck

rel

evan

t val

ve/a

ctua

tor.

(Is

ther

e an

inte

rnal

sho

rt

circ

uit?

)•

Con

tact

the

Mer

itor

OnT

rac™

Cus

tom

er C

all C

ente

r at

86

6-O

nTra

c1 (

668-

7221

).

797

- 5

= P

ress

ure

Mod

ulat

ion

Valv

e A

BS

(D

rive

Axl

e Le

ft) -

cur

rent

be

low

nor

mal

or

open

circ

uit

Failu

re d

etec

tion

'Inte

rrup

tion'

at

Abs

Inle

t/Abs

Out

let

(Driv

e A

xle

Left)

An

inte

rrup

tion

of th

e re

leva

nt a

ctua

tor

is d

etec

ted

in a

ctiv

e an

d in

activ

e st

ates

. The

det

ectio

n tim

e is

200

ms.

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

for

corr

ect p

aram

eter

set

ting.

(Is

the

rele

vant

va

lve/

actu

ator

equ

ippe

d?)

• C

heck

wiri

ng o

f rel

evan

t val

ve/a

ctua

tor.

(Is

ther

e an

in

terr

uptio

n?)

• C

heck

rel

evan

t val

ve/a

ctua

tor.

(Is

ther

e an

inte

rnal

in

terr

uptio

n?)

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

4013143a

Page 32: Maintenance Manual MM-1719 Anti-Lock Braking System · PDF fileMaintenance Manual MM-1719 Anti-Lock Braking System (ABS) and Electronic Stability Control (ESC) For Modular Braking

5 SPN FMI Fault Codes

28 Meritor WABCO Maintenance Manual MM-1719 (Issued 06-17)

Figure 5.13

DTC

SP

N F

MI

Failu

re D

etec

tion

Nam

eFa

ilure

Det

ectio

n D

escr

iptio

nW

arni

ng a

nd S

yste

m

Rea

ctio

nR

epai

r

797

- 13

= P

ress

ure

Mod

ulat

ion

Valv

e A

BS

(D

rive

Axl

e Le

ft) -

out

of

calib

ratio

n

Failu

re d

etec

tion

'Ove

rEqu

ippe

d' a

t A

bsIn

let/A

bsO

utle

t (D

rive

Axl

e Le

ft)

A fa

ilure

is d

etec

ted

if a

com

pone

nt is

con

nect

ed

to th

e E

CU

, but

it is

not

act

ivat

ed in

the

para

met

er

setti

ngs.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• C

heck

for

corr

ect p

aram

eter

set

ting.

(Is

the

rele

vant

va

lve/

actu

ator

equ

ippe

d?)

• C

heck

wiri

ng o

f rel

evan

t val

ve/a

ctua

tor.

(Is

EC

U p

in

open

?)•

Con

tact

the

Mer

itor

OnT

rac™

Cus

tom

er C

all C

ente

r at

86

6-O

nTra

c1 (

668-

7221

).

798

- 3

= P

ress

ure

Mod

ulat

ion

Valv

e A

BS

(D

rive

Axl

e R

ight

) -

volta

ge

abov

e no

rmal

or

shor

ted

high

Failu

re d

etec

tion

'Sho

rtU

b' a

t Abs

Inle

t/A

bsO

utle

t (D

rive

Axl

e R

ight

)

A s

hort

circ

uit t

o U

B o

f the

rel

evan

t act

uato

r is

det

ecte

d in

act

ive

and

inac

tive

stat

es. T

he

dete

ctio

n tim

e is

200

ms.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• C

heck

wiri

ng o

f rel

evan

t val

ve/a

ctua

tor.

(Is

ther

e a

shor

t ci

rcui

t?)

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

798

- 4

= P

ress

ure

Mod

ulat

ion

Valv

e A

BS

(D

rive

Axl

e R

ight

) -

volta

ge

belo

w n

orm

al o

r sh

orte

d lo

w

Failu

re d

etec

tion

'Sho

rtG

nd' a

t A

bsIn

let/A

bsO

utle

t (D

rive

Axl

e R

ight

)

A s

hort

circ

uit t

o G

ND

of t

he r

elev

ant a

ctua

tor

is d

etec

ted

in a

ctiv

e an

d in

activ

e st

ates

. The

de

tect

ion

time

is 2

00 m

s. R

emar

k: A

sho

rted

load

al

so le

ads

to a

sho

rt to

GN

D fa

ilure

. A s

hort

ed

load

is d

etec

ted:

-

Afte

r 20

0 m

s af

ter

igni

tion-

on a

nd a

lso

if va

lve

is

activ

ated

.-

Afte

r 10

00 m

s if

valv

e is

not

act

ivat

ed.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• C

heck

wiri

ng o

f rel

evan

t val

ve/a

ctua

tor.

(Is

ther

e a

shor

t ci

rcui

t?)

• C

heck

rel

evan

t val

ve/a

ctua

tor.

(Is

ther

e an

inte

rnal

sho

rt

circ

uit?

)•

Con

tact

the

Mer

itor

OnT

rac™

Cus

tom

er C

all C

ente

r at

86

6-O

nTra

c1 (

668-

7221

).

798

- 5

= P

ress

ure

Mod

ulat

ion

Valv

e A

BS

(D

rive

Axl

e R

ight

) -

curr

ent

belo

w n

orm

al o

r op

en c

ircui

t

Failu

re d

etec

tion

'Inte

rrup

tion'

at

Abs

Inle

t/Abs

Out

let

(Driv

e A

xle

Rig

ht)

An

inte

rrup

tion

of th

e re

leva

nt a

ctua

tor

is d

etec

ted

in a

ctiv

e an

d in

activ

e st

ates

. The

det

ectio

n tim

e is

200

ms.

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

for

corr

ect p

aram

eter

set

ting.

(Is

the

rele

vant

va

lve/

actu

ator

equ

ippe

d?)

• C

heck

wiri

ng o

f rel

evan

t val

ve/a

ctua

tor.

(Is

ther

e an

in

terr

uptio

n?)

• C

heck

rel

evan

t val

ve/a

ctua

tor.

(Is

ther

e an

inte

rnal

in

terr

uptio

n?)

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

798

- 13

= P

ress

ure

Mod

ulat

ion

Valv

e A

BS

(D

rive

Axl

e R

ight

) -

out o

f ca

libra

tion

Failu

re d

etec

tion

'Ove

rEqu

ippe

d' a

t A

bsIn

let/A

bsO

utle

t (D

rive

Axl

e R

ight

)

A fa

ilure

is d

etec

ted

if a

com

pone

nt is

con

nect

ed

to th

e E

CU

, but

it is

not

act

ivat

ed in

the

para

met

er

setti

ngs.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• C

heck

for

corr

ect p

aram

eter

set

ting.

(Is

the

rele

vant

va

lve/

actu

ator

equ

ippe

d?)

• C

heck

wiri

ng o

f rel

evan

t val

ve/a

ctua

tor.

(Is

EC

U p

in

open

?)•

Con

tact

the

Mer

itor

OnT

rac™

Cus

tom

er C

all C

ente

r at

86

6-O

nTra

c1 (

668-

7221

).

799

- 3

= P

ress

ure

Mod

ulat

ion

Val

ve A

BS

(I

nter

med

iate

Axl

e Le

ft)

- vo

ltage

abo

ve n

orm

al o

r sh

orte

d hi

gh

Failu

re d

etec

tion

'Sho

rtU

b' a

t A

bsIn

let/A

bsO

utle

t (I

nter

med

iate

Axl

e Le

ft)

A s

hort

circ

uit t

o U

B o

f the

rel

evan

t act

uato

r is

det

ecte

d in

act

ive

and

inac

tive

stat

es. T

he

dete

ctio

n tim

e is

200

ms.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• C

heck

wiri

ng o

f rel

evan

t val

ve/a

ctua

tor.

(Is

ther

e a

shor

t ci

rcui

t?)

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

799

- 4

= P

ress

ure

Mod

ulat

ion

Valv

e A

BS

(I

nter

med

iate

Axl

e Le

ft) -

vo

ltage

bel

ow n

orm

al o

r sh

orte

d lo

w

Failu

re d

etec

tion

'Sho

rtG

nd' a

t A

bsIn

let/A

bsO

utle

t (I

nter

med

iate

Axl

e Le

ft)

A s

hort

circ

uit t

o G

ND

of t

he r

elev

ant a

ctua

tor

is d

etec

ted

in a

ctiv

e an

d in

activ

e st

ates

. The

de

tect

ion

time

is 2

00 m

s.R

emar

k: A

sho

rted

load

als

o le

ads

to a

sho

rt to

G

ND

failu

re. A

sho

rted

load

is d

etec

ted:

-

Afte

r 20

0 m

s af

ter

igni

tion-

on a

nd a

lso

if va

lve

is

activ

ated

.-

Afte

r 10

00 m

s if

valv

e is

not

act

ivat

ed.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• C

heck

wiri

ng o

f rel

evan

t val

ve/a

ctua

tor.

(Is

ther

e a

shor

t ci

rcui

t?)

• C

heck

rel

evan

t val

ve/a

ctua

tor.

(Is

ther

e an

inte

rnal

sho

rt

circ

uit?

)•

Con

tact

the

Mer

itor

OnT

rac™

Cus

tom

er C

all C

ente

r at

86

6-O

nTra

c1 (

668-

7221

).

4013144a

Page 33: Maintenance Manual MM-1719 Anti-Lock Braking System · PDF fileMaintenance Manual MM-1719 Anti-Lock Braking System (ABS) and Electronic Stability Control (ESC) For Modular Braking

5 SPN FMI Fault Codes

29Meritor WABCO Maintenance Manual MM-1719 (Issued 06-17)

Figure 5.14

DTC

SP

N F

MI

Failu

re D

etec

tion

Nam

eFa

ilure

Det

ectio

n D

escr

iptio

nW

arni

ng a

nd S

yste

m

Rea

ctio

nR

epai

r

799

- 5

= P

ress

ure

Mod

ulat

ion

Valv

e A

BS

(I

nter

med

iate

Axl

e Le

ft)

- cu

rren

t bel

ow n

orm

al o

r op

en c

ircui

t

Failu

re d

etec

tion

'Inte

rrup

tion'

at

Abs

Inle

t/Abs

Out

let

(Int

erm

edia

te A

xle

Left)

An

inte

rrup

tion

of th

e re

leva

nt a

ctua

tor

is d

etec

ted

in a

ctiv

e an

d in

activ

e st

ates

. The

det

ectio

n tim

e is

200

ms.

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

for

corr

ect p

aram

eter

set

ting.

(Is

the

rele

vant

va

lve/

actu

ator

equ

ippe

d?)

• C

heck

wiri

ng o

f rel

evan

t val

ve/a

ctua

tor.

(Is

ther

e an

in

terr

uptio

n?)

• C

heck

rel

evan

t val

ve/a

ctua

tor.

(Is

ther

e an

inte

rnal

in

terr

uptio

n?)

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

799

- 13

= P

ress

ure

Mod

ulat

ion

Valv

e A

BS

(I

nter

med

iate

Axl

e Le

ft) -

out

of c

alib

ratio

n

Failu

re d

etec

tion

'Ove

rEqu

ippe

d' a

t A

bsIn

let/A

bsO

utle

t (I

nter

med

iate

Axl

e Le

ft)

A fa

ilure

is d

etec

ted

if a

com

pone

nt is

con

nect

ed

to th

e E

CU

, but

it is

not

act

ivat

ed in

the

para

met

er

setti

ngs.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• C

heck

for

corr

ect p

aram

eter

set

ting.

(Is

the

rele

vant

va

lve/

actu

ator

equ

ippe

d?)

• C

heck

wiri

ng o

f rel

evan

t val

ve/a

ctua

tor.

(Is

EC

U p

in

open

?)•

Con

tact

the

Mer

itor

OnT

rac™

Cus

tom

er C

all C

ente

r at

86

6-O

nTra

c1 (

668-

7221

).

800

- 3

= P

ress

ure

Mod

ulat

ion

Valv

e A

BS

(I

nter

med

iate

Axl

e R

ight

) -

volta

ge a

bove

nor

mal

or

shor

ted

high

Failu

re d

etec

tion

'Sho

rtU

b' a

t A

bsIn

let/A

bsO

utle

t (I

nter

med

iate

Axl

e R

ight

)

A s

hort

circ

uit t

o U

B o

f the

rel

evan

t act

uato

r is

det

ecte

d in

act

ive

and

inac

tive

stat

es. T

he

dete

ctio

n tim

e is

200

ms.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• C

heck

wiri

ng o

f rel

evan

t val

ve/a

ctua

tor.

(Is

ther

e a

shor

t ci

rcui

t?)

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

800

- 4

= P

ress

ure

Mod

ulat

ion

Valv

e A

BS

(I

nter

med

iate

Axl

e R

ight

) -

volta

ge b

elow

nor

mal

or

shor

ted

low

Failu

re d

etec

tion

'Sho

rtG

nd' a

t A

bsIn

let/A

bsO

utle

t (I

nter

med

iate

Axl

e R

ight

)

A s

hort

circ

uit t

o G

ND

of t

he r

elev

ant a

ctua

tor

is d

etec

ted

in a

ctiv

e an

d in

activ

e st

ates

. The

de

tect

ion

time

is 2

00 m

s.R

emar

k: A

sho

rted

load

als

o le

ads

to a

sho

rt to

G

ND

failu

re. A

sho

rted

load

is d

etec

ted:

-

Afte

r 20

0 m

s af

ter

igni

tion-

on a

nd a

lso

if va

lve

is

activ

ated

.-

Afte

r 10

00 m

s if

valv

e is

not

act

ivat

ed.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• C

heck

wiri

ng o

f rel

evan

t val

ve/a

ctua

tor.

(Is

ther

e a

shor

t ci

rcui

t?)

• C

heck

rel

evan

t val

ve/a

ctua

tor.

(Is

ther

e an

inte

rnal

sho

rt

circ

uit?

)•

Con

tact

the

Mer

itor

OnT

rac™

Cus

tom

er C

all C

ente

r at

86

6-O

nTra

c1 (

668-

7221

).

800

- 5

= P

ress

ure

Mod

ulat

ion

Valv

e A

BS

(I

nter

med

iate

Axl

e R

ight

) -

curr

ent b

elow

nor

mal

or

open

circ

uit

Failu

re d

etec

tion

'Inte

rrup

tion'

at

Abs

Inle

t/Abs

Out

let

(Int

erm

edia

te A

xle

Rig

ht)

An

inte

rrup

tion

of th

e re

leva

nt a

ctua

tor

is d

etec

ted

in a

ctiv

e an

d in

activ

e st

ates

. The

det

ectio

n tim

e is

200

ms.

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

for

corr

ect p

aram

eter

set

ting.

(Is

the

rele

vant

va

lve/

actu

ator

equ

ippe

d?)

• C

heck

wiri

ng o

f rel

evan

t val

ve/a

ctua

tor.

(Is

ther

e an

in

terr

uptio

n?)

• C

heck

rel

evan

t val

ve/a

ctua

tor.

(Is

ther

e an

inte

rnal

in

terr

uptio

n?)

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

800

- 13

= P

ress

ure

Mod

ulat

ion

Valv

e A

BS

(I

nter

med

iate

Axl

e R

ight

) -

out o

f cal

ibra

tion

Failu

re d

etec

tion

'Ove

rEqu

ippe

d' a

t A

bsIn

let/A

bsO

utle

t (I

nter

med

iate

Axl

e R

ight

)

A fa

ilure

is d

etec

ted

if a

com

pone

nt is

con

nect

ed

to th

e E

CU

, but

it is

not

act

ivat

ed in

the

para

met

er

setti

ngs.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• C

heck

for

corr

ect p

aram

eter

set

ting.

(Is

the

rele

vant

va

lve/

actu

ator

equ

ippe

d?)

• C

heck

wiri

ng o

f rel

evan

t val

ve/a

ctua

tor.

(Is

EC

U p

in

open

?)•

Con

tact

the

Mer

itor

OnT

rac™

Cus

tom

er C

all C

ente

r at

86

6-O

nTra

c1 (

668-

7221

).

801

- 3

= R

etar

der

Con

trol

R

elay

- v

olta

ge a

bove

no

rmal

or

shor

ted

high

Failu

re d

etec

tion

‘Sho

rtU

b’ a

t E

ndur

ance

Bra

ke

Rel

ay

A s

hort

circ

uit t

o U

B o

f the

rel

evan

t act

uato

r is

det

ecte

d in

act

ive

and

inac

tive

stat

es. T

he

dete

ctio

n tim

e is

200

ms.

Yello

w D

river

War

ning

, A

BS

fully

ava

ilabl

e•

Che

ck w

iring

of r

elev

ant v

alve

/act

uato

r. (I

s th

ere

a sh

ort

circ

uit?

)•

Con

tact

the

Mer

itor

OnT

rac™

Cus

tom

er C

all C

ente

r at

86

6-O

nTra

c1 (

668-

7221

).

801

- 4

= R

etar

der

Con

trol

R

elay

- v

olta

ge b

elow

no

rmal

or

shor

ted

low

Failu

re d

etec

tion

‘Sho

rtG

nd’ a

t E

ndur

ance

Bra

ke

Rel

ay

A s

hort

circ

uit t

o G

ND

of t

he r

elev

ant a

ctua

tor

is d

etec

ted

in a

ctiv

e an

d in

activ

e st

ates

. The

de

tect

ion

time

is 2

00 m

s.

Yello

w D

river

War

ning

, A

BS

fully

ava

ilabl

e•

Che

ck w

iring

of r

elev

ant v

alve

/act

uato

r. (I

s th

ere

a sh

ort

circ

uit?

)•

Che

ck r

elev

ant v

alve

/act

uato

r. (I

s th

ere

an in

tern

al s

hort

ci

rcui

t?)

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

4013145a

Page 34: Maintenance Manual MM-1719 Anti-Lock Braking System · PDF fileMaintenance Manual MM-1719 Anti-Lock Braking System (ABS) and Electronic Stability Control (ESC) For Modular Braking

5 SPN FMI Fault Codes

30 Meritor WABCO Maintenance Manual MM-1719 (Issued 06-17)

Figure 5.15

DTC

SP

N F

MI

Failu

re D

etec

tion

Nam

eFa

ilure

Det

ectio

n D

escr

iptio

nW

arni

ng a

nd S

yste

m

Rea

ctio

nR

epai

r

801

- 5

= R

etar

der

Con

trol

R

elay

- c

urre

nt b

elow

no

rmal

or

open

circ

uit

Failu

re d

etec

tion

‘Inte

rrup

tion’

at

End

uran

ce B

rake

R

elay

An

inte

rrup

tion

of th

e re

leva

nt a

ctua

tor

is d

etec

ted

in a

ctiv

e an

d in

activ

e st

ates

. The

det

ectio

n tim

e is

200

ms.

Yello

w D

river

War

ning

, A

BS

fully

ava

ilabl

e•

Che

ck fo

r co

rrec

t par

amet

er s

ettin

g. (

Is th

e re

leva

nt

valv

e/ac

tuat

or e

quip

ped?

)•

Che

ck w

iring

of r

elev

ant v

alve

/act

uato

r. (I

s th

ere

an

inte

rrup

tion?

)•

Che

ck r

elev

ant v

alve

/act

uato

r. (I

s th

ere

an in

tern

al

inte

rrup

tion?

)•

Con

tact

the

Mer

itor

OnT

rac™

Cus

tom

er C

all C

ente

r at

86

6-O

nTra

c1 (

668-

7221

).

801

- 13

= R

etar

der

Con

trol

R

elay

- o

ut o

f cal

ibra

tion

Failu

re d

etec

tion

‘Ove

rEqu

ippe

d’ a

t E

ndur

ance

Bra

ke

Rel

ay

A fa

ilure

is d

etec

ted

if a

com

pone

nt is

con

nect

ed

to th

e E

CU

, but

it is

not

act

ivat

ed in

the

para

met

er

setti

ngs.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• C

heck

for

corr

ect p

aram

eter

set

ting.

(Is

the

rele

vant

va

lve/

actu

ator

equ

ippe

d?)

• C

heck

wiri

ng o

f rel

evan

t val

ve/a

ctua

tor.

(Is

EC

U p

in

open

?)•

Con

tact

the

Mer

itor

OnT

rac™

Cus

tom

er C

all C

ente

r at

86

6-O

nTra

c1 (

668-

7221

).

810

- 2 =

Spe

ed S

igna

l Inp

ut

- da

ta e

rrat

ic, i

nter

mitt

ent o

r in

corr

ect

Che

ck b

etw

een

Spe

edom

eter

Sig

nal

and

AB

S S

peed

Thi

s er

ror

is s

et w

hen

the

calc

ulat

ed u

ncor

rect

ed

spee

dom

eter

adj

ustm

ent f

acto

r is

inva

lid o

r w

hen

inco

nsis

tenc

ies

are

dete

cted

bet

wee

n th

e se

nsed

w

heel

spe

eds

and

the

vehi

cle

spee

d fo

r th

e de

fined

tim

e pe

riods

.

Yello

w D

river

War

ning

, A

BS

fully

ava

ilabl

e•

Che

ck th

e ai

r ga

p of

all

whe

el s

peed

sen

sors

(m

ight

be

too

wid

e).

• C

heck

the

para

met

ers

‘whe

el d

iam

eter

’ and

‘too

th w

heel

te

eth

num

bers

’ (if

appl

icab

le).

• Is

the

spee

d si

gnal

of t

he ta

chog

raph

EC

U (

on c

hass

is

CA

N d

ata

link)

cor

rect

?•

Is th

e sp

eed

sign

al o

f the

tach

ogra

ph E

CU

(on

cha

ssis

C

AN

dat

a lin

k) n

ot a

vaila

ble?

1066

- 0

= B

rake

Sig

nal

Tran

smitt

er -

dat

a va

lid, b

ut

abov

e no

rmal

ope

ratin

g ra

nge

(mos

t sev

ere

leve

l)

Det

ectio

n of

Inva

lid

Offs

et V

alue

of B

rake

S

igna

l

The

det

ectio

n ch

ecks

if th

e re

sulti

ng P

WM

sig

nal

of th

e F

BV

(di

gita

l foo

t bra

ke m

odul

e) is

too

high

in

unb

rake

d co

nditi

on.

Yello

w D

river

War

ning

, A

BS

fully

ava

ilabl

e•

Con

tact

the

Mer

itor

OnT

rac™

Cus

tom

er C

all C

ente

r at

86

6-O

nTra

c1 (

668-

7221

).

1066

- 2

= B

rake

Sig

nal

Tran

smitt

er -

dat

a er

ratic

, in

term

itten

t or

inco

rrec

t

Det

ectio

n of

S

igni

fican

t PW

M In

put

Sig

nal D

iffer

ence

The

det

ectio

n co

mpa

res

both

PW

M s

igna

ls

of th

e F

BV

(di

gita

l foo

t bra

ke m

odul

e). I

f an

inad

mis

sibl

e de

viat

ion

(500

µs)

is d

etec

ted,

then

th

e fa

ilure

is s

et. T

he c

heck

sha

ll on

ly b

e ex

ecut

ed:

- If

both

PW

M s

igna

ls a

re a

vaila

ble

and

- If

at le

ast o

ne s

igna

l (P

WM

1 or

PW

M2)

is b

elow

20

00 µ

sR

emar

k. D

ue to

the

FB

V c

hara

cter

istic

, thi

s ch

eck

shal

l not

be

done

if b

rake

ped

al is

str

ongl

y ap

plie

d.

Yello

w D

river

War

ning

, A

BS

fully

ava

ilabl

e•

Con

tact

the

Mer

itor

OnT

rac™

Cus

tom

er C

all C

ente

r at

86

6-O

nTra

c1 (

668-

7221

).

1066

- 8

= B

rake

Sig

nal

Tran

smitt

er -

abn

orm

al

freq

uenc

y, p

ulse

wid

th o

r pe

riod

Diff

eren

ce o

f PW

M

Sig

nal F

requ

ency

not

4

Hz

A fa

ilure

is d

etec

ted

if th

e di

ffere

nce

of P

WM

fr

eque

ncie

s is

not

with

in v

alid

rang

e (4

Hz

nom

inal

). W

ith th

e P

WM

tole

ranc

es, t

he fr

eque

ncy

diffe

renc

e f_

PW

M2

- f_

PW

M1

shal

l be

in th

e ra

nge

1,5

Hz

. . .

12 H

z.T

he d

etec

tion

time

is 2

50 m

s.

Yello

w D

river

War

ning

, A

BS

fully

ava

ilabl

e•

Che

ck fo

r co

rrec

t typ

e of

FB

V (

digi

tal f

ootb

rake

va

lve/

brak

e si

gnal

tran

smitt

er).

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

1066

- 1

2 =

Bra

ke S

igna

l Tr

ansm

itter

- b

ad in

telli

gent

de

vice

or

com

pone

nt

Det

ectio

n of

Tot

al

Failu

re o

f bot

h P

WM

In

put S

igna

ls

The

det

ectio

n ch

ecks

if b

oth

PW

M s

igna

ls o

f the

F

BV

(di

gita

l foo

t bra

ke m

odul

e) a

re n

ot a

vaila

ble.

If

both

PW

M s

igna

ls a

re n

ot a

vaila

ble,

then

the

failu

re is

set

. T

he c

heck

is o

nly

activ

e if

the

Par

amet

er ‘D

river

D

eman

d S

enso

rtyp

e’ is

=2.

Yello

w D

river

War

ning

, A

BS

fully

ava

ilabl

e•

Che

ck fo

r co

rrec

t par

amet

er s

ettin

g (d

river

dem

and

sens

orty

pe).

• C

heck

for

corr

ect w

iring

of F

BV

. (Is

ther

e an

in

terr

uptio

n? A

sho

rt c

ircui

t?)

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

1067

- 2

= B

rake

Sig

nal

Sen

sor

1 -

data

err

atic

, in

term

itten

t or

inco

rrec

t

Det

ectio

n of

inva

lid

duty

-cyc

le/p

ulse

-wid

th

at P

WM

sig

nal 1

A fa

ilure

is s

et a

fter

250

ms

if th

e du

ty c

ycle

of

PW

M1

is n

ot in

the

rang

e 6-

97%

(30

0 µs

-485

0 µs

).Fa

ilure

will

be

rese

t if d

uty

cycl

e is

with

in ra

nge

9,5-

94%

(47

5 µs

-470

0 µs

) ag

ain.

Yello

w D

river

War

ning

, A

BS

fully

ava

ilabl

e•

Con

tact

the

Mer

itor

OnT

rac™

Cus

tom

er C

all C

ente

r at

86

6-O

nTra

c1 (

668-

7221

).

4013146a

Page 35: Maintenance Manual MM-1719 Anti-Lock Braking System · PDF fileMaintenance Manual MM-1719 Anti-Lock Braking System (ABS) and Electronic Stability Control (ESC) For Modular Braking

5 SPN FMI Fault Codes

31Meritor WABCO Maintenance Manual MM-1719 (Issued 06-17)

Figure 5.16

DTC

SP

N F

MI

Failu

re D

etec

tion

Nam

eFa

ilure

Det

ectio

n D

escr

iptio

nW

arni

ng a

nd S

yste

m

Rea

ctio

nR

epai

r

1067

- 4

= B

rake

Sig

nal

Sen

sor

1 -

volta

ge b

elow

no

rmal

or

shor

ted

low

Det

ectio

n of

pe

rman

ent l

ow le

vel

at P

WM

sig

nal 1

A fa

ilure

is d

etec

ted

afte

r 20

0 m

s if

the

PW

M1

sign

al is

on

perm

anen

t low

leve

l.Ye

llow

Driv

er W

arni

ng,

AB

S fu

lly a

vaila

ble

• C

heck

for

corr

ect w

iring

of F

BV

. (Is

ther

e an

in

terr

uptio

n? A

sho

rt c

ircui

t?)

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

1067

- 5

= B

rake

Sig

nal

Sen

sor

1 -

curr

ent b

elow

no

rmal

or

open

circ

uit

Det

ectio

n of

ope

n lo

ad a

t PW

M s

igna

l 1A

failu

re is

det

ecte

d af

ter

200

ms

if th

e P

WM

1 si

gnal

has

ope

n lo

ad.

Rem

ark:

Thi

s ca

uses

a p

erm

anen

t hig

h le

vel o

f th

e si

gnal

.

Yello

w D

river

War

ning

, A

BS

fully

ava

ilabl

e•

Che

ck fo

r co

rrec

t par

amet

er s

ettin

g (d

river

dem

and

sens

orty

pe).

• C

heck

for

corr

ect w

iring

of F

BV

. (Is

ther

e an

in

terr

uptio

n? A

sho

rt c

ircui

t?)

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

1067

- 5

= B

rake

Sig

nal

Sen

sor

1 -

curr

ent b

elow

no

rmal

or

open

circ

uit

Det

ectio

n of

pe

rman

ent h

igh

leve

l at

PW

M s

igna

l 1

A fa

ilure

is d

etec

ted

afte

r 20

0 m

s if

the

PW

M1

sign

al is

on

perm

anen

t hig

h le

vel.

Yello

w D

river

War

ning

, A

BS

fully

ava

ilabl

e•

Che

ck fo

r co

rrec

t par

amet

er s

ettin

g (d

river

dem

and

sens

orty

pe).

• C

heck

for

corr

ect w

iring

of F

BV

. (Is

ther

e an

in

terr

uptio

n? A

sho

rt c

ircui

t?)

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

1067

- 8

= B

rake

Sig

nal

Sen

sor

1 -

abno

rmal

fr

eque

ncy,

pul

se w

idth

or

perio

d

Det

ectio

n of

inva

lid

freq

uenc

y at

PW

M

sign

al 1

A fa

ilure

is d

etec

ted

afte

r 25

0 m

s if

the

freq

uenc

y of

the

PW

M1

sign

al is

out

side

the

rang

e:-

194

Hz-

202

Hz

(old

FB

V v

ersi

on, n

omin

al

freq

uenc

y 19

8 H

z).

- 18

4 H

z-19

2 H

z (n

ew F

BV

ver

sion

, nom

inal

fr

eque

ncy

188

Hz)

.

Yello

w D

river

War

ning

, A

BS

fully

ava

ilabl

e•

Che

ck fo

r co

rrec

t typ

e of

FB

V (

digi

tal f

ootb

rake

va

lve/

brak

e si

gnal

tran

smitt

er).

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

1067

- 1

3 =

Bra

ke S

igna

l S

enso

r 1

- ou

t of c

alib

ratio

nFa

ilure

Det

ectio

n ‘O

verE

quip

ped’

at

PW

M s

igna

l 1

A fa

ilure

is d

etec

ted

if a

com

pone

nt is

con

nect

ed

to th

e E

CU

, but

it is

not

act

ivat

ed in

the

para

met

er

setti

ngs.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• C

heck

for

corr

ect p

aram

eter

set

ting

(driv

er d

eman

d se

nsor

type

).•

Con

tact

the

Mer

itor

OnT

rac™

Cus

tom

er C

all C

ente

r at

86

6-O

nTra

c1 (

668-

7221

).

1068

- 2

= B

rake

Sig

nal

Sen

sor

2 -

data

err

atic

, in

term

itten

t or

inco

rrec

t

Det

ectio

n of

inva

lid

duty

-cyc

le/p

ulse

-wid

th

at P

WM

sig

nal 2

A fa

ilure

is s

et a

fter

250

ms

if th

e du

ty c

ycle

of

PW

M2

is n

ot in

the

rang

e 6-

97%

(30

0 µs

-485

0 µs

).Fa

ilure

will

be

rese

t if d

uty

cycl

e is

with

in ra

nge

9,5-

94%

(47

5 µs

-470

0 µs

) ag

ain.

Yello

w D

river

War

ning

, A

BS

fully

ava

ilabl

e•

Con

tact

the

Mer

itor

OnT

rac™

Cus

tom

er C

all C

ente

r at

86

6-O

nTra

c1 (

668-

7221

).

1068

- 4

= B

rake

Sig

nal

Sen

sor

2 -

vol

tage

bel

ow

norm

al o

r sh

orte

d lo

w

Det

ectio

n of

pe

rman

ent l

ow le

vel

at P

WM

sig

nal 2

A fa

ilure

is d

etec

ted

afte

r 20

0 m

s if

the

PW

M2

sign

al is

on

perm

anen

t low

leve

l.Ye

llow

Driv

er W

arni

ng,

AB

S fu

lly a

vaila

ble

• C

heck

for

corr

ect w

iring

of F

BV

. (Is

ther

e an

in

terr

uptio

n? A

sho

rt c

ircui

t?)

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

1068

- 5

= B

rake

Sig

nal

Sen

sor

2 -

curr

ent b

elow

no

rmal

or

open

circ

uit

Det

ectio

n of

ope

n lo

ad a

t PW

M s

igna

l 2A

failu

re is

det

ecte

d af

ter

200

ms,

the

PW

M2

sign

al h

as o

pen

load

.R

emar

k: T

his

caus

es a

per

man

ent h

igh

leve

l of

the

sign

al.

Yello

w D

river

War

ning

, A

BS

fully

ava

ilabl

e•

Che

ck fo

r co

rrec

t par

amet

er s

ettin

g (d

river

dem

and

sens

orty

pe).

• C

heck

for

corr

ect w

iring

of F

BV

. (Is

ther

e an

in

terr

uptio

n? A

sho

rt c

ircui

t?)

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

1068

- 5

= B

rake

Sig

nal

Sen

sor

2 -

curr

ent b

elow

no

rmal

or

open

circ

uit

Det

ectio

n of

pe

rman

ent h

igh

leve

l at

PW

M s

igna

l 2

A fa

ilure

is d

etec

ted

afte

r 20

0 m

s, th

e P

WM

2 si

gnal

is o

n pe

rman

ent h

igh

leve

l.Ye

llow

Driv

er W

arni

ng,

AB

S fu

lly a

vaila

ble

• C

heck

for

corr

ect p

aram

eter

set

ting

(driv

er d

eman

d se

nsor

type

).•

Che

ck fo

r co

rrec

t wiri

ng o

f FB

V. (

Is th

ere

an

inte

rrup

tion?

A s

hort

circ

uit?

)•

Con

tact

the

Mer

itor

OnT

rac™

Cus

tom

er C

all C

ente

r at

86

6-O

nTra

c1 (

668-

7221

).

4013147a

Page 36: Maintenance Manual MM-1719 Anti-Lock Braking System · PDF fileMaintenance Manual MM-1719 Anti-Lock Braking System (ABS) and Electronic Stability Control (ESC) For Modular Braking

5 SPN FMI Fault Codes

32 Meritor WABCO Maintenance Manual MM-1719 (Issued 06-17)

Figure 5.17

DTC

SP

N F

MI

Failu

re D

etec

tion

Nam

eFa

ilure

Det

ectio

n D

escr

iptio

nW

arni

ng a

nd S

yste

m

Rea

ctio

nR

epai

r

1068

- 8

= B

rake

Sig

nal

Sen

sor

2 -

abno

rmal

fr

eque

ncy,

pul

se w

idth

or

perio

d

Det

ectio

n of

inva

lid

freq

uenc

y at

PW

M

sign

al 2

A fa

ilure

is d

etec

ted

afte

r 25

0 m

s if

the

freq

uenc

y of

the

PW

M2

sign

al is

out

side

the

rang

e:-

198

Hz-

206

Hz

(old

FB

V v

ersi

on, n

omin

al

freq

uenc

y 20

2 H

z).

- 18

8 H

z-19

6 H

z (n

ew F

BV

ver

sion

, nom

inal

fr

eque

ncy

192

Hz)

.

Yello

w D

river

War

ning

, A

BS

fully

ava

ilabl

e•

Che

ck fo

r co

rrec

t typ

e of

FB

V (

digi

tal f

ootb

rake

va

lve/

brak

e si

gnal

tran

smitt

er).

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

1068

- 1

3 =

Bra

ke S

igna

l S

enso

r 2

- ou

t of c

alib

ratio

nFa

ilure

Det

ectio

n ‘O

verE

quip

ped’

at

PW

M s

igna

l 2

A fa

ilure

is d

etec

ted

if a

com

pone

nt is

con

nect

ed

to th

e E

CU

, but

it is

not

act

ivat

ed in

the

para

met

er

setti

ngs.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• C

heck

for

corr

ect p

aram

eter

set

ting

(driv

er d

eman

d se

nsor

type

).•

Con

tact

the

Mer

itor

OnT

rac™

Cus

tom

er C

all C

ente

r at

86

6-O

nTra

c1 (

668-

7221

).

1243

- 1

2 =

AB

S F

ully

O

pera

tiona

l - b

ad in

telli

gent

de

vice

or

com

pone

nt

AB

S F

unct

ion

Is N

ot

Ful

ly O

pera

tiona

lT

his

failu

re is

dis

play

ed if

the

AB

S fu

nctio

n is

te

mpo

raril

y de

activ

ated

(pa

rtly

or

com

plet

ely)

. P

ossi

ble

caus

es a

re:

- A

fter

AB

S-d

eact

ivat

ion

durin

g dr

ivin

g, th

e A

BS

re

quire

s ce

rtai

n dr

ivin

g co

nditi

ons

to b

e m

et p

rior

to b

ecom

ing

activ

e ag

ain?

- The

AB

S fu

nctio

n w

as d

eact

ivat

ed b

y pa

ram

eter

- Im

port

ant p

aram

eter

s fo

r A

BS

-fun

ctio

n ar

e no

t av

aila

ble

Yello

w D

river

War

ning

, A

BS

par

tly o

r co

mpl

etel

y sw

itche

d of

f

• T

his

DT

C d

oes

not r

equi

re a

ny r

epai

r. It

is o

nly

driv

er

info

rmat

ion.

1351

- 0

= A

ir C

ompr

esso

r -

data

val

id, b

ut a

bove

nor

mal

op

erat

ing

rang

e (m

ost

seve

re le

vel)

EA

PU

- C

ompr

esso

r/

Ove

rpre

ssur

e Fa

ult

The

sys

tem

pre

ssur

e is

abo

ve th

e pa

ram

etriz

ed

max

. val

ue.

Yello

w D

river

War

ning

, A

BS

fully

ava

ilabl

e•

Che

ck p

aram

eter

set

ting.

• C

heck

rel

atin

g pr

essu

re s

enso

rs.

• C

heck

con

trol

line

for

com

pres

sor

(blo

cked

, fau

lty, l

eaky

).•

Che

ck s

olen

oid

bloc

k.

1351

- 6

= A

ir C

ompr

esso

r -

curr

ent a

bove

nor

mal

or

grou

nded

circ

uit

EA

PU

- C

ompr

esso

r/

Com

pres

sor

Not

Off

In Id

le

The

sys

tem

pre

ssur

e ris

es e

ven

with

a s

hut o

ff co

mpr

esso

r. Fa

ilure

det

ectio

n im

med

iate

afte

r re

achi

ng

over

pres

sure

lim

it.

Yello

w D

river

War

ning

, A

BS

fully

ava

ilabl

e•

Che

ck c

ontr

ol li

ne fo

r co

mpr

esso

r (b

lock

ed, f

aulty

, lea

ky).

• C

heck

sol

enoi

d bl

ock.

1351

- 1

1 =

Air

Com

pres

sor

- fa

ilure

mod

e no

t id

entifi

able

/ roo

t cau

se n

ot

know

n

EA

PU

- C

ompr

esso

r/

Crit

ical

Air

Con

sum

ptio

n

The

sys

tem

pre

ssur

es b

eing

rea

ched

afte

r a

long

pe

riod

of p

umpi

ng a

re n

ot a

t an

appr

opria

te le

vel

that

allo

ws

rege

nera

tion.

Fa

ilure

det

ectio

n im

med

iate

afte

r re

achi

ng c

ritic

al

air

cons

umpt

ion

limit.

Yello

w D

river

War

ning

, A

BS

fully

ava

ilabl

e•

Che

ck th

e ve

hicl

e fo

r a

criti

cal a

ir co

nsum

ptio

n ->

avo

id

or s

top

usag

e of

hig

h ai

r co

nsum

ers.

• C

heck

veh

icle

for

leak

age

in v

ehic

le.

• C

heck

com

pres

sor.

• C

heck

sol

enoi

d bl

ock.

1807

- 0

= S

teer

ing

Whe

el

Ang

le -

dat

a va

lid, b

ut a

bove

no

rmal

ope

ratin

g ra

nge

(mos

t sev

ere

leve

l)

Sig

nal O

ffset

Fai

lure

of

Ste

erin

g W

heel

A

ngle

Sen

sing

The

sof

twar

e m

onito

rs th

e de

term

ined

offs

ets.

The

m

axim

um a

llow

ed o

ffset

val

ues

are

deriv

ed fr

om

the

sens

or d

ata

shee

ts.

Yello

w E

SC

War

ning

, A

BS

fully

ava

ilabl

e,

ES

C s

witc

hed

off

• C

heck

the

mec

hani

cal s

teer

ing

elem

ents

at t

he fr

ont a

xle

(def

ect,

twis

ted,

faul

ty a

ssem

bly,

etc

.).

• C

heck

the

mou

ntin

g po

sitio

n of

the

stee

ring

angl

e se

nsor

on

the

stee

ring

shaf

t (cr

anky

, fau

lty a

ssem

bly,

etc

.).

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

1807

- 2

= S

teer

ing

Whe

el

Ang

le -

dat

a er

ratic

, in

term

itten

t or

inco

rrec

t

Ste

erw

heel

P

laus

ibili

ty C

heck

Thi

s ch

eck

mon

itors

the

stee

ring

angl

e an

d co

mpa

res

it to

oth

er s

igna

ls. I

t det

ects

dev

iatin

g si

gnal

s w

hich

are

not

pla

usib

le to

the

curr

ently

dr

iven

situ

atio

n.

Yello

w E

SC

War

ning

, A

BS

fully

ava

ilabl

e,

ES

C s

witc

hed

off

• C

heck

the

AB

S E

CU

con

cern

ing

corr

ect E

OL

para

met

er

(ste

erin

g ra

tio, w

heel

base

, whe

el d

iam

eter

, etc

.).

• C

heck

whe

ther

the

SA

S is

cor

rect

ly a

ssem

bled

.•

Con

tact

the

Mer

itor

OnT

rac™

Cus

tom

er C

all C

ente

r at

86

6-O

nTra

c1 (

668-

7221

).

1807

- 2

= S

teer

ing

Whe

el

Ang

le -

dat

a er

ratic

, in

term

itten

t or

inco

rrec

t

SA

S S

igna

l is

Not

P

laus

ible

Det

ectio

n 1)

Fai

lure

is d

etec

ted

whe

n th

e ex

tract

ed s

teer

ing

whe

el a

ngle

val

ue fr

om C

AN

m

essa

ge is

not

bet

wee

n -1

80 d

egre

e to

+18

0 de

gree

(le

ss th

an 2

8905

or

grea

ter

than

353

44).

Det

ectio

n 2)

Err

or is

det

ecte

d if

the

chan

ge in

st

eerin

g w

heel

ang

le is

mor

e th

an 3

0 de

gree

s in

5m

s.

Yello

w E

SC

War

ning

, A

BS

fully

ava

ilabl

e,

ES

C s

witc

hed

off

• C

heck

the

AB

S E

CU

con

cern

ing

corr

ect E

OL

para

met

er

(ste

erin

g ra

tio, w

heel

base

, whe

el d

iam

eter

, etc

.).

• C

heck

whe

ther

the

SA

S is

cor

rect

ly a

ssem

bled

.•

Con

tact

the

Mer

itor

OnT

rac™

Cus

tom

er C

all C

ente

r at

86

6-O

nTra

c1 (

668-

7221

).

4013148a

Page 37: Maintenance Manual MM-1719 Anti-Lock Braking System · PDF fileMaintenance Manual MM-1719 Anti-Lock Braking System (ABS) and Electronic Stability Control (ESC) For Modular Braking

5 SPN FMI Fault Codes

33Meritor WABCO Maintenance Manual MM-1719 (Issued 06-17)

Figure 5.18

DTC

SP

N F

MI

Failu

re D

etec

tion

Nam

eFa

ilure

Det

ectio

n D

escr

iptio

nW

arni

ng a

nd S

yste

m

Rea

ctio

nR

epai

r

1807

- 7

= S

teer

ing

Whe

el

Ang

le -

mec

hani

cal s

yste

m

not r

espo

ndin

g co

rrec

tly o

r ou

t of a

djus

tmen

t

Yaw

rate

Cro

ss C

heck

(S

teer

angl

e)T

he fo

llow

ing

four

yaw

rate

s ar

e co

mpa

red:

- M

easu

red

by th

e ya

w ra

te s

enso

r-

Cal

cula

ted

by la

tera

l acc

eler

atio

n (y

r-aq

)-

Cal

cula

ted

by s

teer

ing

whe

el a

ngle

(yr

-lw)

- C

alcu

late

d by

whe

el s

peed

s fr

ont a

xle

If yr

-lw d

oes

not m

atch

with

the

rest

and

the

rest

its

elf i

s co

nsis

tent

the

yr-lw

is ra

ted

susp

icio

us

(at l

east

5 °

/s d

evia

tion)

. Afte

rwar

ds, s

peci

al

cond

ition

s w

hich

lead

to n

ot-m

atch

ing-

yaw

-ra

tes

are

dete

cted

(ba

nked

cur

ve, o

vers

teer

ing,

un

ders

teer

ing,

...)

.

Yello

w E

SC

War

ning

, A

BS

fully

ava

ilabl

e,

ES

C s

witc

hed

off

• C

heck

the

AB

S E

CU

con

cern

ing

corr

ect E

OL

para

met

er

(ste

erin

g ra

tio, w

heel

base

, whe

el d

iam

eter

, etc

.).

• C

heck

whe

ther

the

SA

S is

cor

rect

ly a

ssem

bled

.•

Con

tact

the

Mer

itor

OnT

rac™

Cus

tom

er C

all C

ente

r at

86

6-O

nTra

c1 (

668-

7221

).

1807

- 8

= S

teer

ing

Whe

el

Ang

le -

abn

orm

al fr

eque

ncy,

pu

lse

wid

th o

r pe

riod

Tim

eout

of S

AS

CA

N

Mes

sage

A ti

meo

ut o

f the

ste

erin

g an

gle

sens

or C

AN

m

essa

ge is

det

ecte

d af

ter

105

ms.

Yello

w E

SC

War

ning

, A

BS

fully

ava

ilabl

e,

ES

C s

witc

hed

off

• C

heck

mai

n E

CU

for

corr

ect E

OL

confi

gura

tion

(ste

erin

g w

heel

sen

sor

yes/

no).

• C

heck

the

wiri

ng b

etw

een

mai

n E

CU

and

ste

erin

g w

heel

se

nsor

.•

Che

ck th

e vo

ltage

sup

ply

of th

e st

eerin

g an

gle

sens

or.

• C

heck

the

stee

ring

whe

el s

enso

r.•

Con

tact

the

Mer

itor

OnT

rac™

Cus

tom

er C

all C

ente

r at

86

6-O

nTra

c1 (

668-

7221

).

1807

- 9

= S

teer

ing

Whe

el

Ang

le -

abn

orm

al u

pdat

e ra

te

Ste

erin

g W

heel

Ang

le

Min

imum

Dyn

amic

Fa

ilure

The

sig

nal o

f the

ste

erin

g w

heel

ang

le is

ex

trem

ely

cons

tant

(m

inim

um d

ynam

ic fa

ilure

).Ye

llow

ES

C W

arni

ng,

AB

S fu

lly a

vaila

ble,

E

SC

sw

itche

d of

f

• C

heck

if S

AS

is m

echa

nica

lly c

onne

cted

to th

e st

eerin

g co

lum

n. (

Doe

s it

rota

te?)

• C

heck

ste

erin

g an

gle

sens

or.

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

1807

- 1

2 =

Ste

erin

g W

heel

A

ngle

- b

ad in

telli

gent

de

vice

or

com

pone

nt

Err

or In

dica

tion

of

SA

S S

igna

lIf

stee

ring

whe

el a

ngle

val

ue is

bet

wee

n 0x

FE

00

and

0xF

EF

F(in

clud

ing)

or

whe

n th

e st

eerin

g w

heel

an

gle

rang

e co

unte

r eq

uals

0x3

E, t

hen

this

failu

re

will

be

dete

cted

.

Yello

w E

SC

War

ning

, A

BS

fully

ava

ilabl

e,

ES

C s

witc

hed

off

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

1807

- 1

3 =

Ste

erin

g W

heel

A

ngle

- o

ut o

f cal

ibra

tion

Failu

re D

etec

tion

‘Ove

rEqu

ippe

d’

for

Ste

erin

g A

ngle

S

enso

r

A fa

ilure

is d

etec

ted

if a

com

pone

nt is

con

nect

ed

to th

e E

CU

, but

it is

not

act

ivat

ed in

the

para

met

er

setti

ngs.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• C

heck

for

corr

ect p

aram

eter

set

ting

(SA

S y

es/n

o).

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

1807

- 1

4 =

Ste

erin

g W

heel

A

ngle

- s

peci

al in

stru

ctio

nsC

onst

ant M

essa

ge

Cou

nter

of S

AS

CA

N

Mes

sage

Whe

n m

essa

ge c

ount

er v

alue

rec

eive

d fr

om S

AS

C

AN

mes

sage

rem

ains

con

stan

t for

180

ms,

then

m

essa

ge c

ount

er fa

ilure

will

be

dete

cted

.

Yello

w E

SC

War

ning

, A

BS

fully

ava

ilabl

e,

ES

C s

witc

hed

off

• C

heck

the

mai

n E

CU

con

cern

ing

corr

ect E

OL

para

met

er

(ste

erin

g w

heel

sen

sor

type

).•

Che

ck w

heth

er th

e co

rrec

t SA

S ty

pe is

ass

embl

ed a

t the

ve

hicl

e.•

Che

ck th

e st

eerin

g an

gle

sens

or/r

epla

ce th

e st

eerin

g an

gle

sens

or.

• C

heck

the

mai

n E

CU

.•

Con

tact

the

Mer

itor

OnT

rac™

Cus

tom

er C

all C

ente

r at

86

6-O

nTra

c1 (

668-

7221

).

1807

- 1

7 =

Ste

erin

g W

heel

A

ngle

- d

ata

valid

, but

bel

ow

norm

al o

pera

ting

rang

e (le

ast s

ever

e le

vel)

Sig

nal N

ot A

vaila

ble

Indi

catio

n of

SA

S

Sig

nal

If st

eerin

g w

heel

ang

le v

alue

is b

etw

een

0xF

F00

and

0xF

FF

F (

incl

udin

g) o

r w

hen

the

stee

ring

whe

el a

ngle

rang

e co

unte

r eq

uals

0x3

F

cont

inuo

usly

for

1 se

cond

, the

n th

is fa

ilure

will

be

dete

cted

.

Yello

w E

SC

War

ning

, A

BS

fully

ava

ilabl

e,

ES

C s

witc

hed

off

• C

heck

if s

teer

ing

angl

e se

nsor

is c

onfig

ured

and

ca

libra

ted

corr

ectly

.•

Con

tact

the

Mer

itor

OnT

rac™

Cus

tom

er C

all C

ente

r at

86

6-O

nTra

c1 (

668-

7221

).

1807

- 1

8 =

Ste

erin

g W

heel

A

ngle

- d

ata

valid

, but

bel

ow

norm

al o

pera

ting

rang

e (m

oder

atel

y se

vere

leve

l)

Neu

tral V

alue

D

etec

tion

(Ste

eran

gle)

A fa

ilure

is d

etec

ted

if th

e ta

rget

yaw

rate

(fr

om

SA

S)

stay

s ne

ar z

ero

and

the

actu

al s

enso

r ya

w

rate

and

the

yaw

rate

cal

cula

ted

from

the

late

ral

acce

lera

tion

are

abov

e th

e de

tect

ion

thre

shol

d (e

.g. 5

ø/s

).

Yello

w E

SC

War

ning

, A

BS

fully

ava

ilabl

e,

ES

C s

witc

hed

off

• C

heck

the

mec

hani

cal c

onne

ctio

n be

twee

n st

eerin

g an

gle

sens

or a

nd s

teer

ing

shaf

t (lo

osen

ed?)

.•

Con

tact

the

Mer

itor

OnT

rac™

Cus

tom

er C

all C

ente

r at

86

6-O

nTra

c1 (

668-

7221

).

4013149a

Page 38: Maintenance Manual MM-1719 Anti-Lock Braking System · PDF fileMaintenance Manual MM-1719 Anti-Lock Braking System (ABS) and Electronic Stability Control (ESC) For Modular Braking

5 SPN FMI Fault Codes

34 Meritor WABCO Maintenance Manual MM-1719 (Issued 06-17)

Figure 5.19

DTC

SP

N F

MI

Failu

re D

etec

tion

Nam

eFa

ilure

Det

ectio

n D

escr

iptio

nW

arni

ng a

nd S

yste

m

Rea

ctio

nR

epai

r

1807

- 1

9 =

Ste

erin

g W

heel

A

ngle

- r

ecei

ved

netw

ork

data

in e

rror

Inva

lid C

heck

sum

of

SA

S C

AN

Mes

sage

Thi

s fa

ilure

is p

rodu

ced

whe

n th

e ch

ecks

um

valu

e re

ceiv

ed in

ste

erin

g w

heel

ang

le s

enso

r C

AN

mes

sage

doe

s no

t mat

ch w

ith c

heck

sum

ca

lcul

ated

from

dat

a co

nten

t of t

he C

AN

mes

sage

.

Yello

w E

SC

War

ning

, A

BS

fully

ava

ilabl

e,

ES

C s

witc

hed

off

• C

heck

the

mai

n E

CU

con

cern

ing

corr

ect E

OL

para

met

er

(ste

erin

g w

heel

sen

sor

type

).•

Che

ck w

heth

er th

e co

rrec

t SA

S ty

pe is

ass

embl

ed a

t the

ve

hicl

e.•

Che

ck th

e st

eerin

g an

gle

sens

or a

nd m

ain

EC

U.

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

1807

- 3

1 =

Ste

erin

g W

heel

A

ngle

- c

ondi

tion

exis

tsIn

valid

Sta

tus

of S

AS

S

igna

lT

his

failu

re is

pro

duce

d w

hen

the

stee

ring

whe

el

angl

e se

nsor

sen

ds ‘n

ot c

alib

rate

d st

ate’

or ‘

not

activ

e st

ate’

.

Yello

w E

SC

War

ning

, A

BS

fully

ava

ilabl

e,

ES

C s

witc

hed

off

• C

heck

if s

teer

ing

angl

e se

nsor

is c

onfig

ured

and

ca

libra

ted

corr

ectly

.•

Con

tact

the

Mer

itor

OnT

rac™

Cus

tom

er C

all C

ente

r at

86

6-O

nTra

c1 (

668-

7221

).

1808

- 1

= Y

aw R

ate

- da

ta

valid

, but

bel

ow n

orm

al

oper

atin

g ra

nge

(mos

t se

vere

leve

l)

Min

imum

Dyn

amic

Fa

ilure

/Yaw

Rat

eT

his

failu

re in

dica

tes

an a

ctiv

e m

inim

al d

ynam

ic

failu

re fo

r th

e ya

w ra

te s

enso

r.T

his

failu

re is

set

whe

n th

e er

ror

flag

insi

de th

e E

SC

1 m

essa

ge is

set

(E

SC

1: B

yte

3 B

it 1)

for

a ce

rtai

n tim

e.

Yello

w E

SC

War

ning

, A

BS

fully

ava

ilabl

e,

ES

C s

witc

hed

off

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

1808

- 2

= Y

aw R

ate

- da

ta

erra

tic, i

nter

mitt

ent o

r in

corr

ect

Ran

ge C

heck

Fai

lure

of

Yaw

Rat

e S

enso

r S

igna

l

A fa

ilure

is d

etec

ted

if th

e ya

w-r

ate

exce

eds

a ce

rtai

n m

axim

um v

alue

.Ye

llow

ES

C W

arni

ng,

AB

S fu

lly a

vaila

ble,

E

SC

sw

itche

d of

f

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

1808

- 3

= Y

aw R

ate

- vo

ltage

abo

ve n

orm

al o

r sh

orte

d hi

gh

Drif

t Fai

lure

of Y

aw

Rat

e S

enso

r S

igna

l (S

tand

still

)

The

yaw

rate

sig

nal d

rifts

in s

tand

still

mor

e th

an a

pe

rmis

sibl

e lim

it.Ye

llow

ES

C W

arni

ng,

AB

S fu

lly a

vaila

ble,

E

SC

sw

itche

d of

f

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

1808

- 5

= Y

aw R

ate

- cu

rren

t bel

ow n

orm

al o

r op

en c

ircui

t

Offs

et F

ailu

re o

f Yaw

R

ate

Sen

sor

Sig

nal

The

sof

twar

e m

onito

rs th

e de

term

ined

offs

ets.

The

m

axim

um a

llow

ed o

ffset

val

ues

are

deriv

ed fr

om

the

sens

or d

ata

shee

ts.

Yello

w E

SC

War

ning

, A

BS

fully

ava

ilabl

e,

ES

C s

witc

hed

off

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

1808

- 6

= Y

aw R

ate

- cu

rren

t abo

ve n

orm

al o

r gr

ound

ed c

ircui

t

Drif

t Fai

lure

of Y

aw

Rat

e S

enso

r S

igna

l (D

rivin

g)

The

yaw

rate

sig

nal d

rifts

dur

ing

driv

ing

mor

e th

an

a pe

rmis

sibl

e lim

it.Ye

llow

ES

C W

arni

ng,

AB

S fu

lly a

vaila

ble,

E

SC

sw

itche

d of

f

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

1808

- 7

= Y

aw R

ate

- m

echa

nica

l sys

tem

not

re

spon

ding

cor

rect

ly o

r ou

t of

adj

ustm

ent

Faul

ty S

ign

betw

een

Yaw

Rat

e an

d S

teer

angl

e

A fa

ilure

is s

et if

the

sign

bet

wee

n th

e ta

rget

yaw

ra

te (

stee

ring

whe

el s

enso

r) a

nd th

e se

nsor

yaw

ra

te is

faul

ty.

Prin

cipl

e: C

alcu

late

the

ratio

bet

wee

n th

e ta

rget

ya

w ra

te a

nd th

e se

nsor

yaw

rate

. If t

he ra

tio is

ne

gativ

e (-

0,6

up to

-1,

4) fo

r bo

th tu

rnin

g di

rect

ion

a fa

ilure

sha

ll be

indi

cate

d.

Yello

w E

SC

War

ning

, A

BS

fully

ava

ilabl

e,

ES

C s

witc

hed

off

• C

heck

EO

L pa

ram

eter

s fo

r m

ount

ing

dire

ctio

n (E

SC

m

odul

e).

• C

heck

for

corr

ect m

ount

ing

dire

ctio

n (a

ssem

bly

posi

tion)

of

ES

C m

odul

e.•

Che

ck fo

r co

rrec

t mou

ntin

g di

rect

ion

of s

teer

ing

angl

e se

nsor

.•

Con

tact

the

Mer

itor

OnT

rac™

Cus

tom

er C

all C

ente

r at

86

6-O

nTra

c1 (

668-

7221

).

1808

- 1

1 =

Yaw

Rat

e -

failu

re m

ode

not i

dent

ifiab

le/

root

cau

se n

ot k

now

n

Pla

usib

ility

Che

ck

of Y

aw R

ate

Sig

nal

(Stra

ight

Driv

ing)

Pla

usib

ility

che

ck o

f the

act

ual y

aw ra

te w

hile

dr

ivin

g st

raig

ht u

nder

sta

ble

cond

ition

s. If

the

vehi

cle

is d

rivin

g st

raig

ht u

nder

sta

ble

cond

ition

an

d th

e ac

tual

yaw

rate

is h

ighe

r th

an th

resh

old

(e.g

. 6 *

pi /

180)

, an

erro

r is

set

.

Yello

w E

SC

War

ning

, A

BS

fully

ava

ilabl

e,

ES

C s

witc

hed

off

• C

heck

for

corr

ect a

ssem

bly

posi

tion

of E

SC

mod

ule.

• C

heck

ES

C m

odul

e.•

Che

ck s

teer

ing

angl

e se

nsor

.•

Con

tact

the

Mer

itor

OnT

rac™

Cus

tom

er C

all C

ente

r at

86

6-O

nTra

c1 (

668-

7221

).

1808

- 1

2 =

Yaw

Rat

e -

bad

inte

llige

nt d

evic

e or

co

mpo

nent

ES

C M

odul

e Fa

ilure

F

lag

‘Yaw

Rat

e S

enso

r’

Thi

s fa

ilure

indi

cate

s th

at th

e ya

w ra

te s

enso

r in

side

the

ES

C in

dica

tes

an e

rror

.T

his

failu

re is

set

whe

n th

e er

ror

indi

catio

n fla

g in

side

the

ES

C1

mes

sage

is s

et (

ES

C1

Mul

tiple

xer

= 0x

0 (M

ultip

lexe

r B

yte

0 B

it 4-

7) a

nd B

yte

1 B

it 1

is s

et to

one

).

Yello

w E

SC

War

ning

, A

BS

fully

ava

ilabl

e,

ES

C s

witc

hed

off

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

4013150a

Page 39: Maintenance Manual MM-1719 Anti-Lock Braking System · PDF fileMaintenance Manual MM-1719 Anti-Lock Braking System (ABS) and Electronic Stability Control (ESC) For Modular Braking

5 SPN FMI Fault Codes

35Meritor WABCO Maintenance Manual MM-1719 (Issued 06-17)

Figure 5.20

DTC

SP

N F

MI

Failu

re D

etec

tion

Nam

eFa

ilure

Det

ectio

n D

escr

iptio

nW

arni

ng a

nd S

yste

m

Rea

ctio

nR

epai

r

1808

- 1

3 =

Yaw

Rat

e -

out

of c

alib

ratio

nS

calin

g Fa

ilure

D

etec

tion

(Yaw

Rat

e an

d S

teer

angl

e)

Det

ectio

n of

sca

ling

failu

res

betw

een

the

targ

et

yaw

rate

and

the

actu

al y

aw ra

te.

The

ratio

bet

wee

n th

e ta

rget

yaw

rate

and

the

actu

al y

aw ra

te h

as to

be

outs

ide

the

thre

shol

d ra

nge

(0.7

to 1

.3)

and

not i

n th

e ne

gativ

e ra

nge

-0,7

to -

1,3,

and

the

trus

t cou

nter

val

ue h

as to

be

set t

o ze

ro.

The

trus

t cou

nter

will

be

incr

emen

ted

to a

m

axim

um o

f 60

seco

nds

if th

e se

nsor

sig

nal i

s in

side

the

thre

shol

d ra

nge.

Yello

w E

SC

War

ning

, A

BS

fully

ava

ilabl

e,

ES

C s

witc

hed

off

• C

heck

EO

L pa

ram

eter

for

mou

ntin

g-di

rect

ion

of E

SC

m

odul

e.•

Che

ck fo

r co

rrec

t mou

ntin

g di

rect

ion

(ass

embl

y po

sitio

n)

of E

SC

mod

ule.

• C

heck

the

ES

C m

odul

e.•

Che

ck th

e st

eerin

g an

gle

sens

or.

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

1808

- 1

4 =

Yaw

Rat

e -

spec

ial i

nstr

uctio

nsYa

w R

ate

Cro

ss

Che

ck (

Yaw

Rat

e S

igna

l)

The

follo

win

g fo

ur y

aw ra

tes

are

com

pare

d:

- M

easu

red

by th

e ya

w ra

te s

enso

r-

Cal

cula

ted

by la

tera

l acc

eler

atio

n (y

r-aq

)-

Cal

cula

ted

by s

teer

ing

whe

el a

ngle

- C

alcu

late

d by

whe

el s

peed

s fr

ont a

xle

If yr

doe

s no

t mat

ch w

ith th

e re

st a

nd th

e re

st it

self

is c

onsi

sten

t, th

e yr

is ra

ted

susp

icio

us (

at le

ast

5°/s

dev

iatio

n). A

fterw

ards

, spe

cial

con

ditio

ns

whi

ch le

ad to

not

-mat

chin

g-ya

w-r

ates

are

det

ecte

d (b

anke

d cu

rve,

ove

rste

erin

g, u

nder

stee

ring,

...)

.

Yello

w E

SC

War

ning

, A

BS

fully

ava

ilabl

e,

ES

C s

witc

hed

off

• C

heck

the

AB

S E

CU

con

cern

ing

corr

ect E

OL

para

met

er

(ste

erin

g ra

tio, w

heel

base

, whe

el d

iam

eter

, etc

.).

• C

heck

whe

ther

the

ES

C m

odul

e is

ass

embl

ed in

cor

rect

po

sitio

n.•

Con

tact

the

Mer

itor

OnT

rac™

Cus

tom

er C

all C

ente

r at

86

6-O

nTra

c1 (

668-

7221

).

1808

- 1

7 =

Yaw

Rat

e -

data

va

lid, b

ut b

elow

nor

mal

op

erat

ing

rang

e (le

ast

seve

re le

vel)

Neu

tral V

alue

D

etec

tion

(Yaw

Rat

e)T

he a

ctua

l yaw

rate

(fr

om th

e ya

w ra

te s

enso

r)

does

not

follo

w th

e ta

rget

yaw

rate

and

the

yaw

ra

te d

eriv

ed fr

om th

e la

tera

l acc

eler

atio

n.A

ctua

l yaw

rate

is n

ear

zero

and

diff

eren

ce

betw

een

the

actu

al y

aw ra

te a

nd th

e ta

rget

yaw

ra

te a

nd y

aw ra

te fr

om la

tera

l acc

eler

atio

n is

hi

gher

than

the

thre

shol

d (e

.g. 5

ø/s

).

Yello

w E

SC

War

ning

, A

BS

fully

ava

ilabl

e,

ES

C s

witc

hed

off

• C

heck

EO

L pa

ram

eter

for

mou

ntin

g di

rect

ion

of E

SC

m

odul

e.•

Che

ck fo

r co

rrec

t mou

ntin

g di

rect

ion

(ass

embl

y po

sitio

n)

of E

SC

mod

ule.

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

1808

- 1

9 =

Yaw

Rat

e -

rece

ived

net

wor

k da

ta in

er

ror

Pla

usib

ility

Che

ck

of Y

aw R

ate

Sig

nal

(Cur

ve)

Pla

usib

ility

che

ck w

hile

driv

ing

a cu

rve.

The

act

ual

yaw

rate

will

be

com

pare

d to

the

targ

et y

aw ra

te,

yaw

rate

from

late

ral a

ccel

erat

ion

and

the

yaw

rate

fr

om th

e fr

ont a

xle

whe

el s

peed

s.T

his

func

tiona

lity

is d

ivid

ed in

to tw

o pa

rts.

D

etec

tion

unde

r st

able

con

ditio

ns a

nd u

nder

un

stab

le c

ondi

tions

.

Yello

w E

SC

War

ning

, A

BS

fully

ava

ilabl

e,

ES

C s

witc

hed

off

• C

heck

the

ES

C m

odul

e.•

Con

tact

the

Mer

itor

OnT

rac™

Cus

tom

er C

all C

ente

r at

86

6-O

nTra

c1 (

668-

7221

).

1808

- 2

2 =

Yaw

Rat

e -

rese

rved

(22

)P

laus

ibili

ty b

etw

een

Fron

t Axl

e S

peed

an

d Ya

w R

ate

Sen

sor

Sig

nal

The

failu

re is

det

ecte

d if

the

yaw

rate

(ca

lcul

ated

by

the

fron

t whe

el s

peed

sig

nals

) di

ffers

from

the

mea

sure

d ya

w ra

te.

Yello

w E

SC

War

ning

, A

BS

fully

ava

ilabl

e,

ES

C s

witc

hed

off

• W

hen

tires

wer

e ch

ange

d, th

e sp

eedo

met

er m

ust b

e ca

libra

ted

to th

e ne

w ti

re d

imen

sion

s. -

Che

ck th

e T

CO

sig

nal (

func

tion

of s

peed

omet

er).

-Is

the

TC

O s

peed

sig

nal c

orre

ctly

cal

ibra

ted?

-C

heck

the

vehi

cle-

spec

ific

para

met

ers

of th

e sp

eedo

met

er.

• T

he A

BS

EC

U m

ust h

ave

corr

ect p

aram

eter

s. -

Che

ck th

e pa

ram

eter

s in

the

AB

S E

CU

(sp

eedo

met

er

sign

al s

ourc

e, ti

re d

imen

sion

s).

• T

he E

SC

func

tion

requ

ires

a co

rrec

t ass

embl

y of

the

ES

C m

odul

e. -

Che

ck th

e as

sem

bly

posi

tion

of th

e E

SC

mod

ule

(mec

hani

cal h

ardw

are

codi

ng b

etw

een

ES

C m

odul

e an

d ve

hicl

e-fra

me)

. -

Che

ck th

e co

rrec

t ele

ctric

con

nect

ion

of th

e E

SC

m

odul

e. -

Che

ck th

e fit

ting

of th

e E

SC

mod

ule.

4013151a

Page 40: Maintenance Manual MM-1719 Anti-Lock Braking System · PDF fileMaintenance Manual MM-1719 Anti-Lock Braking System (ABS) and Electronic Stability Control (ESC) For Modular Braking

5 SPN FMI Fault Codes

36 Meritor WABCO Maintenance Manual MM-1719 (Issued 06-17)

Figure 5.21

DTC

SP

N F

MI

Failu

re D

etec

tion

Nam

eFa

ilure

Det

ectio

n D

escr

iptio

nW

arni

ng a

nd S

yste

m

Rea

ctio

nR

epai

r

1809

- 1

= L

ater

al

Acc

eler

atio

n -

data

val

id,

but b

elow

nor

mal

ope

ratin

g ra

nge

(mos

t sev

ere

leve

l)

Min

imum

Dyn

amic

Fa

ilure

/Lat

eral

A

ccel

erat

ion

Thi

s fa

ilure

indi

cate

s an

act

ive

min

imal

dyn

amic

fa

ilure

for

the

late

ral a

ccel

erat

ion

sens

or.

Thi

s fa

ilure

is s

et w

hen

the

erro

r fla

g in

side

the

ES

C1

mes

sage

is s

et (

ES

C1:

Byt

e 3

Bit0

) fo

r a

cert

ain

time.

Yello

w E

SC

War

ning

, A

BS

fully

ava

ilabl

e,

ES

C s

witc

hed

off

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

1809

- 2

= L

ater

al

Acc

eler

atio

n -

data

err

atic

, in

term

itten

t or

inco

rrec

t

Ran

ge C

heck

of

Lat

eral

- an

d Lo

ngitu

dina

l A

ccel

erat

ion

Ran

ge c

heck

for

the

late

ral a

nd lo

ngitu

dina

l ac

cele

ratio

n va

lue.

Yello

w E

SC

War

ning

, A

BS

fully

ava

ilabl

e,

ES

C s

witc

hed

off

• C

heck

EO

L pa

ram

eter

for

mou

ntin

g di

rect

ion

of E

SC

m

odul

e.•

Che

ck fo

r co

rrec

t mou

ntin

g di

rect

ion

(ass

embl

y po

sitio

n)

of E

SC

mod

ule.

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

1809

- 7

= L

ater

al

Acc

eler

atio

n -

mec

hani

cal

syst

em n

ot r

espo

ndin

g co

rrec

tly o

r ou

t of

adju

stm

ent

Faul

ty S

ign

betw

een

Late

ral A

ccel

erat

ion

and

Ste

eran

gle

Det

ectio

n of

sig

n fa

ilure

s be

twee

n th

e ta

rget

ya

w ra

te (

stee

ring

whe

el s

enso

r) a

nd th

e la

tera

l ac

cele

ratio

n.

Prin

cipl

e: C

alcu

late

the

ratio

bet

wee

n th

e ta

rget

ya

w ra

te a

nd th

e ya

w ra

te fr

om th

e la

tera

l ac

cele

ratio

n. If

the

ratio

is n

egat

ive

for

both

turn

ing

dire

ctio

n, a

failu

re s

hall

be in

dica

ted.

Set

Con

ditio

n: T

he ra

tio is

neg

ativ

e an

d in

side

the

ratio

tole

ranc

e th

resh

old

(-0,

6 up

to -

1,4)

.

Yello

w E

SC

War

ning

, A

BS

fully

ava

ilabl

e,

ES

C s

witc

hed

off

• C

heck

EO

L pa

ram

eter

s fo

r m

ount

ing

dire

ctio

n (E

SC

m

odul

e).

• C

heck

for

corr

ect m

ount

ing

dire

ctio

n (a

ssem

bly

posi

tion)

of

ES

C m

odul

e.•

Che

ck fo

r co

rrec

t mou

ntin

g di

rect

ion

of s

teer

ing

angl

e se

nsor

.•

Con

tact

the

Mer

itor

OnT

rac™

Cus

tom

er C

all C

ente

r at

86

6-O

nTra

c1 (

668-

7221

).

1809

- 1

2 =

Late

ral

Acc

eler

atio

n -

bad

inte

llige

nt

devi

ce o

r co

mpo

nent

ES

C M

odul

e Fa

ilure

Fla

g ‘L

ater

al

Acc

eler

atio

n S

enso

r’

Thi

s fa

ilure

indi

cate

s th

at th

e la

tera

l acc

eler

atio

n se

nsor

insi

de th

e E

SC

mod

ule

indi

cate

s an

err

or.

Thi

s fa

ilure

is s

et w

hen

the

erro

r in

dica

tion

flag

insi

de th

e E

SC

1 m

essa

ge is

set

(E

SC

1 M

ultip

lexe

r =

0x0

(Mul

tiple

xer

Byt

e 0

Bit

4 -

7) a

nd B

yte

1 B

it 0

is s

et to

one

).

Yello

w E

SC

War

ning

, A

BS

fully

ava

ilabl

e,

ES

C s

witc

hed

off

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

1809

- 1

4 =

Late

ral

Acc

eler

atio

n -

spec

ial

inst

ruct

ions

Yaw

Rat

e C

ross

C

heck

(La

tera

l A

ccel

erat

ion)

The

follo

win

g fo

ur y

aw ra

tes

are

com

pare

d:-

Mea

sure

d by

the

yaw

rate

sen

sor

- C

alcu

late

d by

late

ral a

ccel

erat

ion

(yr-

aq)

- C

alcu

late

d by

ste

erin

g w

heel

ang

le-

Cal

cula

ted

by w

heel

spe

eds

fron

t axl

eare

co

mpa

red

If yr

-aq

does

not

mat

ch w

ith th

e re

st a

nd th

e re

st

itsel

f is

cons

iste

nt, t

he y

r-aq

is ra

ted

susp

icio

us

(at l

east

5 °

/s d

evia

tion)

. Afte

rwar

ds, s

peci

al

cond

ition

s w

hich

lead

to n

ot-m

atch

ing-

yaw

-ra

tes

are

dete

cted

(ba

nked

cur

ve, o

vers

teer

ing,

un

ders

teer

ing,

...)

.

Yello

w E

SC

War

ning

, A

BS

fully

ava

ilabl

e,

ES

C s

witc

hed

off

• C

heck

the

AB

S E

CU

con

cern

ing

corr

ect E

OL

para

met

er

(ste

erin

g ra

tio, w

heel

base

, whe

el d

iam

eter

, etc

.).

• C

heck

whe

ther

the

ES

C m

odul

e is

ass

embl

ed in

cor

rect

po

sitio

n•

Con

tact

the

Mer

itor

OnT

rac™

Cus

tom

er C

all C

ente

r at

86

6-O

nTra

c1 (

668-

7221

).

1809

- 1

5 =

Late

ral

Acc

eler

atio

n -

data

val

id,

but a

bove

nor

mal

ope

ratin

g ra

nge

(leas

t sev

ere

leve

l)

Sig

nal O

ffset

Fai

lure

of

Lat

eral

Acc

eler

atio

n S

ensi

ng

The

offs

et v

alue

of t

he s

enso

r is

eva

luat

ed

perm

anen

tly d

urin

g dr

ivin

g st

raig

ht-o

n. T

his

offs

et v

alue

is u

sed

for

a co

rrec

tion

of th

e la

tera

l ac

cele

ratio

n in

form

atio

n.A

n of

fset

failu

re is

det

ecte

d if

the

diffe

renc

e be

twee

n se

nsor

sig

nal a

nd la

tera

l acc

eler

atio

n ca

lcul

ated

by

yaw

rate

exc

eeds

1,7

m/s

². T

he

failu

re d

etec

tion

is o

nly

activ

e if

vehi

cle

spee

d is

hig

her

than

10

km/h

and

if v

ehic

le is

driv

ing

stra

ight

-on.

Yello

w E

SC

War

ning

, A

BS

fully

ava

ilabl

e,

ES

C s

witc

hed

off

• C

heck

EO

L pa

ram

eter

for

mou

ntin

g di

rect

ion

of E

SC

m

odul

e.•

Che

ck fo

r co

rrec

t mou

ntin

g di

rect

ion

(ass

embl

y po

sitio

n)

of E

SC

mod

ule.

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

1809

- 1

7 =

Late

ral

Acc

eler

atio

n -

data

val

id,

but b

elow

nor

mal

ope

ratin

g ra

nge

(leas

t sev

ere

leve

l)

Neu

tral V

alue

D

etec

tion

(Lat

eral

A

ccel

erat

ion)

The

yaw

rate

cal

cula

ted

from

the

late

ral

acce

lera

tion

does

not

follo

w th

e ac

tual

yaw

rate

an

d th

e ta

rget

yaw

rate

.

Yello

w E

SC

War

ning

, A

BS

fully

ava

ilabl

e,

ES

C s

witc

hed

off

• C

heck

EO

L pa

ram

eter

for

mou

ntin

g di

rect

ion

of E

SC

m

odul

e.•

Che

ck fo

r co

rrec

t mou

ntin

g di

rect

ion

(ass

embl

y po

sitio

n)

of E

SC

mod

ule.

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

4013152a

Page 41: Maintenance Manual MM-1719 Anti-Lock Braking System · PDF fileMaintenance Manual MM-1719 Anti-Lock Braking System (ABS) and Electronic Stability Control (ESC) For Modular Braking

5 SPN FMI Fault Codes

37Meritor WABCO Maintenance Manual MM-1719 (Issued 06-17)

Figure 5.22

DTC

SP

N F

MI

Failu

re D

etec

tion

Nam

eFa

ilure

Det

ectio

n D

escr

iptio

nW

arni

ng a

nd S

yste

m

Rea

ctio

nR

epai

r

1809

- 2

0 =

Late

ral

Acc

eler

atio

n -

data

drif

ted

high

Sig

nal D

rift F

ailu

re o

f La

tera

l Acc

eler

atio

n S

ensi

ng

The

late

ral a

ccel

erat

ion

sign

al w

as d

riftin

g ou

tsid

e th

e va

lid ra

nge.

Yello

w E

SC

War

ning

, A

BS

fully

ava

ilabl

e,

ES

C s

witc

hed

off

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

1810

- 0

= L

ongi

tudi

nal

Acc

eler

atio

n -

data

val

id,

but a

bove

nor

mal

ope

ratin

g ra

nge

(mos

t sev

ere

leve

l)

Offs

et F

ailu

re

of L

ongi

tudi

nal

Acc

eler

atio

n S

enso

r S

igna

l

Thi

s fa

ilure

indi

cate

s a

faul

ty o

ffset

val

ue o

f the

lo

ngitu

dina

l acc

eler

atio

n se

nsor

.Ye

llow

ES

C W

arni

ng,

AB

S fu

lly a

vaila

ble,

E

SC

sw

itche

d of

f

• C

heck

EO

L pa

ram

eter

for

mou

ntin

g di

rect

ion

of E

SC

m

odul

e.•

Che

ck fo

r co

rrec

t mou

ntin

g di

rect

ion

(ass

embl

y po

sitio

n)

of E

SC

mod

ule.

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

1810

- 1

= L

ongi

tudi

nal

Acc

eler

atio

n -

data

val

id,

but b

elow

nor

mal

ope

ratin

g ra

nge

(mos

t sev

ere

leve

l)

Min

imum

Dyn

amic

Fa

ilure

/Lon

gitu

dina

l A

ccel

erat

ion

Thi

s fa

ilure

indi

cate

s an

act

ive

min

imal

dyn

amic

fa

ilure

for

the

long

itudi

nal a

ccel

erat

ion

sens

or.

Yello

w D

river

War

ning

, A

BS

fully

ava

ilabl

e•

Con

tact

the

Mer

itor

OnT

rac™

Cus

tom

er C

all C

ente

r at

86

6-O

nTra

c1 (

668-

7221

).

1810

- 2

= L

ongi

tudi

nal

Acc

eler

atio

n -

data

err

atic

, in

term

itten

t or

inco

rrec

t

Pla

usib

ility

Fai

lure

of

Lon

gitu

dina

l A

ccel

erat

ion

Sen

sor

Sig

nal

Thi

s fa

ilure

indi

cate

s a

plau

sibi

lity

failu

re o

f the

lo

ngitu

dina

l acc

eler

atio

n se

nsor

(e.

g. c

hara

cter

istic

no

t cor

rect

).

Yello

w E

SC

War

ning

, A

BS

fully

ava

ilabl

e,

ES

C s

witc

hed

off

• C

heck

EO

L pa

ram

eter

for

mou

ntin

g di

rect

ion

of E

SC

m

odul

e.•

Che

ck fo

r co

rrec

t mou

ntin

g di

rect

ion

(ass

embl

y po

sitio

n)

of E

SC

mod

ule.

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

1810

- 7

= L

ongi

tudi

nal

Acc

eler

atio

n -

mec

hani

cal

syst

em n

ot r

espo

ndin

g co

rrec

tly o

r ou

t of

adju

stm

ent

Ass

embl

y Fa

ilure

of

Lon

gitu

dina

l A

ccel

erat

ion

Sen

sor

Sig

nal

Thi

s fa

ilure

indi

cate

s a

faul

ty a

ssem

bly

of th

e lo

ngitu

dina

l acc

eler

atio

n se

nsor

(i.e

. mou

ntin

g di

rect

ion

not c

orre

ct).

Yello

w E

SC

War

ning

, A

BS

fully

ava

ilabl

e,

ES

C s

witc

hed

off

• C

heck

EO

L pa

ram

eter

for

mou

ntin

g di

rect

ion

of E

SC

m

odul

e.•

Che

ck fo

r co

rrec

t mou

ntin

g di

rect

ion

(ass

embl

y po

sitio

n)

of E

SC

mod

ule.

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

1810

- 1

2 =

Long

itudi

nal

Acc

eler

atio

n -

bad

inte

llige

nt

devi

ce o

r co

mpo

nent

ES

C M

odul

e Fa

ilure

F

lag

‘Lon

gitu

dina

l A

ccel

erat

ion

Sen

sor’

Thi

s fa

ilure

indi

cate

s th

at th

e lo

ngitu

dina

l ac

cele

ratio

n se

nsor

insi

de th

e E

SC

mod

ule

indi

cate

s an

err

or.

Thi

s fa

ilure

is s

et w

hen

the

erro

r in

dica

tion

flag

insi

de th

e E

SC

2 m

essa

ge is

set

(E

SC

2 M

ultip

lexe

r =

0x0

(Mul

tiple

xer

Byt

e 0

Bit

4 -

7) a

nd B

yte

1 B

it 0

is s

et to

one

).

Yello

w D

river

War

ning

, A

BS

fully

ava

ilabl

e•

Con

tact

the

Mer

itor

OnT

rac™

Cus

tom

er C

all C

ente

r at

86

6-O

nTra

c1 (

668-

7221

).

3509

- 3

= S

enso

r su

pply

-

volta

ge a

bove

nor

mal

or

shor

ted

high

Failu

re d

etec

tion

‘Sho

rtU

b’ a

t S

enso

rSup

ply

A p

erm

anen

t hig

h vo

ltage

leve

l (sh

orte

d to

pe

rman

ent U

B)

at th

e se

nsor

-sup

ply

is d

etec

ted

afte

r ig

nitio

n-on

.

Yello

w D

river

War

ning

, A

BS

fully

ava

ilabl

e•

Che

ck w

iring

of r

elev

ant s

enso

rs. (

Is th

ere

a sh

ort c

ircui

t to

UB

?)•

Con

tact

the

Mer

itor

OnT

rac™

Cus

tom

er C

all C

ente

r at

86

6-O

nTra

c1 (

668-

7221

).

3509

- 4

= S

enso

r su

pply

-

volta

ge b

elow

nor

mal

or

shor

ted

low

Failu

re d

etec

tion

‘Sho

rtG

nd’ a

t S

enso

rSup

ply

A fa

ilure

is d

etec

ted

afte

r 20

0 m

s if

the

sens

or

supp

ly is

too

low

(sh

orte

d to

GN

D).

Yello

w D

river

War

ning

, A

BS

fully

ava

ilabl

e•

Che

ck w

iring

of r

elev

ant s

enso

rs. (

Is th

ere

a sh

ort c

ircui

t to

GN

D?)

• C

heck

rel

evan

t sen

sors

. (Is

ther

e an

inte

rnal

sho

rt c

ircui

t to

GN

D?

Ele

ctric

cur

rent

too

high

?)•

Con

tact

the

Mer

itor

OnT

rac™

Cus

tom

er C

all C

ente

r at

86

6-O

nTra

c1 (

668-

7221

).

5202

10 -

8 =

ES

C-m

odul

e -

abno

rmal

freq

uenc

y, p

ulse

w

idth

or

perio

d

ES

C M

odul

e C

AN

M

essa

ges/

Tim

eout

Fa

ilure

A ti

meo

ut o

f the

ES

C m

odul

e C

AN

mes

sage

is

dete

cted

afte

r 10

5 m

s.Ye

llow

ES

C W

arni

ng,

AB

S fu

lly a

vaila

ble,

E

SC

sw

itche

d of

f

• C

heck

mai

n E

CU

for

corr

ect E

OL

confi

gura

tion

(ES

C

mod

ule

yes/

no).

• C

heck

the

wiri

ng b

etw

een

mai

n E

CU

and

ES

C m

odul

e.•

Che

ck th

e vo

ltage

sup

ply

of th

e E

SC

mod

ule.

• C

heck

the

ES

C m

odul

e.•

Con

tact

the

Mer

itor

OnT

rac™

Cus

tom

er C

all C

ente

r at

86

6-O

nTra

c1 (

668-

7221

).

4013153a

Page 42: Maintenance Manual MM-1719 Anti-Lock Braking System · PDF fileMaintenance Manual MM-1719 Anti-Lock Braking System (ABS) and Electronic Stability Control (ESC) For Modular Braking

5 SPN FMI Fault Codes

38 Meritor WABCO Maintenance Manual MM-1719 (Issued 06-17)

Figure 5.23

DTC

SP

N F

MI

Failu

re D

etec

tion

Nam

eFa

ilure

Det

ectio

n D

escr

iptio

nW

arni

ng a

nd S

yste

m

Rea

ctio

nR

epai

r

5202

10 -

10

= E

SC

-mod

ule

- ab

norm

al ra

te o

f cha

nge

ES

C M

odul

e C

AN

M

essa

ges/

Blo

ckda

ta

Cou

nter

Fai

lure

A fa

ilure

is d

etec

ted

if th

e m

essa

ge c

ount

er

insi

de th

e E

SC

1 (B

yte

0 -

Bit

4 to

Bit

7) o

r in

side

th

e E

SC

2 (B

yte

0 -

Bit

4 to

Bit

7) is

not

cor

rect

ly

incr

emen

ted.

Yello

w E

SC

War

ning

, A

BS

fully

ava

ilabl

e,

ES

C s

witc

hed

off

• C

heck

the

ES

C m

odul

e.•

Che

ck th

e m

ain

EC

U.

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

5202

10 -

12

= E

SC

-mod

ule

- ba

d in

telli

gent

dev

ice

or

com

pone

nt

ES

C M

odul

e Fa

ilure

F

lag

‘Inte

rnal

Err

or’

Thi

s fa

ilure

indi

cate

s th

at th

e E

SC

sen

sor

has

reco

gniz

ed a

n in

tern

al e

rror

.T

his

failu

re is

set

whe

n th

e in

tern

al e

rror

indi

catio

n fla

g in

side

the

ES

C1

mes

sage

is s

et (

ES

C1

Mul

tiple

xer

= 0x

0 (M

ultip

lexe

r B

yte

0 B

it 4

- 7)

and

B

yte

1 B

it 3

is s

et to

one

).

Yello

w E

SC

War

ning

, A

BS

fully

ava

ilabl

e,

ES

C s

witc

hed

off

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

5202

10 -

13

= E

SC

-mod

ule

- ou

t of c

alib

ratio

nFa

ilure

Det

ectio

n ‘O

verE

quip

ped’

for

ES

C m

odul

e

A fa

ilure

is d

etec

ted

if a

com

pone

nt is

con

nect

ed

to th

e E

CU

, but

it is

not

act

ivat

ed in

the

para

met

er

setti

ngs.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• C

heck

for

corr

ect p

aram

eter

set

ting

(ES

C y

es/n

o).

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

5202

10 -

14

= E

SC

-mod

ule

- sp

ecia

l ins

truc

tions

CA

N In

com

patib

ility

of

the

ES

C M

odul

eIt

was

det

ecte

d th

at th

e ch

arac

teris

tic n

umbe

r (C

AN

) of

the

ES

C m

odul

e is

inva

lid.

Yello

w E

SC

War

ning

, A

BS

fully

ava

ilabl

e,

ES

C s

witc

hed

off

• Fo

r a

corr

ect f

unct

ion

of th

e br

ake

syst

em, t

he r

ight

co

mbi

natio

n of

bra

ke s

yste

m E

CU

s an

d E

SC

mod

ule

mus

t be

asse

mbl

ed in

the

vehi

cle.

Ple

ase

read

the

num

bers

of a

ll th

ese

com

pone

nts

and

chec

k th

em fo

r co

mpa

tibili

ty a

gain

st e

ach

othe

r.

5202

10 -

19

= E

SC

-mod

ule

- re

ceiv

ed n

etw

ork

data

in

erro

r

ES

C M

odul

e C

AN

M

essa

ges/

Che

cksu

m

Failu

re

The

sof

twar

e sh

all s

et th

e fa

ilure

whe

n th

e E

SC

1 C

heck

sum

(E

SC

1 B

yte

0 -

Bit

0 -

3) o

r th

e E

SC

2 C

heck

sum

(E

SC

2 B

yte

0 -

Bit

0 -3

) di

ffers

from

the

inte

rnal

cal

cula

ted

chec

ksum

.

Yello

w E

SC

War

ning

, A

BS

fully

ava

ilabl

e,

ES

C s

witc

hed

off

• C

heck

the

ES

C m

odul

e.•

Che

ck th

e m

ain

EC

U.

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

5202

13 -

31

= E

SC

-C

alib

ratio

n P

roce

dure

-

cond

ition

exi

sts

ES

C C

alib

ratio

n P

roce

dure

Is A

ctiv

eT

his

failu

re c

ode

is d

ispl

ayed

if th

e ca

libra

tion

func

tion

of th

e E

SC

is c

urre

ntly

act

ive.

Yello

w E

SC

War

ning

, A

BS

fully

ava

ilabl

e,

ES

C s

witc

hed

off

• T

his

DT

C d

oes

not r

equi

re a

ny r

epai

r. It

is o

nly

driv

er

info

rmat

ion.

5202

14 -

2 =

Ste

erin

g A

ngle

Rat

io -

dat

a er

ratic

, in

term

itten

t or

inco

rrec

t

Lear

ning

val

ue

of s

teer

ing

ratio

ch

arac

teris

tics

is

inco

rrec

t

With

ste

erin

g an

gle

ratio

ada

ptat

ion

mod

e en

able

d, fa

ilure

can

be

set w

hen

lear

ned

stee

ring

angl

e ra

tio c

orre

ctio

n va

lue

over

tim

e is

inva

lid.

With

ste

erin

g an

gle

ratio

free

lear

ning

mod

e en

able

d, fa

ilure

det

ectio

n is

ena

bled

onl

y af

ter

lear

ning

of t

he s

teer

ing

angl

e ra

tio c

urve

is

com

plet

ed. F

ailu

re c

an b

e se

t if n

ew le

arne

d st

eerin

g an

gle

ratio

val

ues

over

tim

e co

mpa

red

with

the

calc

ulat

ed s

teer

ing

angl

e ra

tios

from

wha

t w

as p

revi

ousl

y le

arne

d ha

s de

viat

ed.

With

ste

erin

g an

gle

ratio

no

adap

tatio

n m

ode

enab

led,

failu

re w

ill b

e se

t if l

earn

ed s

teer

ing

angl

e ra

tio c

ompa

red

to th

e ca

lcul

ated

ste

erin

g an

gle

ratio

from

par

amet

er s

ettin

g ha

s de

viat

ed.

Thi

s er

ror

dete

ctio

n is

ena

bled

by

para

met

er.

Yello

w E

SC

War

ning

, A

BS

fully

ava

ilabl

e,

ES

C s

witc

hed

off

• C

heck

the

AB

S E

CU

con

cern

ing

corr

ect E

SC

-spe

cific

E

OL

para

met

ers

(e.g

. ste

erin

g-ra

tio, w

heel

bas

e, p

ole-

whe

el te

eth-

num

bers

, tire

-circ

umfe

renc

e, e

tc.)

.•

Is th

e ve

hicl

e da

mag

ed a

t the

fron

t axl

e (s

teer

ing,

axl

e,

etc.

)?•

Che

ck th

e E

SC

mod

ule.

• C

heck

the

stee

ring

whe

el a

ngle

sen

sor.

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

5202

16 -

31

= E

SC

func

tion

is r

educ

ed (

traile

r A

BS

not

O

K)

- co

nditi

on e

xist

s

Red

uced

ES

C

Fun

ctio

nalit

y (T

raile

r A

BS

Fai

lure

)

It w

as d

etec

ted

that

the

traile

r ha

d fa

ulty

AB

S

func

tiona

lity.

Yello

w D

river

War

ning

, A

BS

fully

ava

ilabl

e•

Che

ck th

e A

BS

in th

e tra

iler.

5202

40 -

9 =

Ext

erna

l Bra

ke

Dem

and

Sys

tem

(V

RD

U)

- ab

norm

al u

pdat

e ra

te

Ext

erna

l Bra

ke

Req

uest

, Mes

sage

T

imeo

ut

Err

or w

ill b

e se

t if a

ny o

f the

bel

ow c

ondi

tions

are

sa

tisfie

d:-

E1

mes

sage

not

rec

eive

d fo

r 50

ms

whe

n m

essa

ge v

alid

cou

nter

is g

reat

er th

an 0

(in

dica

tes

that

the

mes

sage

has

bee

n re

ceiv

ed

at le

ast o

nce)

.-

E4

mes

sage

not

rec

eive

d fo

r 50

ms

whe

n m

essa

ge v

alid

cou

nter

is g

reat

er th

an 0

(in

dica

tes

that

the

mes

sage

has

bee

n re

ceiv

ed

at le

ast o

nce)

.

No

Driv

er W

arni

ng, A

BS

fu

lly a

vaila

ble

• C

heck

the

failu

re m

emor

y of

the

VR

DU

EC

U a

nd r

epai

r al

l fai

lure

s.•

Che

ck th

e w

iring

of t

he c

hass

is C

AN

dat

a co

nnec

tion

and

the

rela

ting

elec

tric

con

nect

ors

betw

een

AB

S E

CU

an

d th

e V

RD

U E

CU

. R

emar

k: V

RD

U =

Vid

eo R

adar

Dec

isio

n U

nit

4013154a

Page 43: Maintenance Manual MM-1719 Anti-Lock Braking System · PDF fileMaintenance Manual MM-1719 Anti-Lock Braking System (ABS) and Electronic Stability Control (ESC) For Modular Braking

5 SPN FMI Fault Codes

39Meritor WABCO Maintenance Manual MM-1719 (Issued 06-17)

Figure 5.24

DTC

SP

N F

MI

Failu

re D

etec

tion

Nam

eFa

ilure

Det

ectio

n D

escr

iptio

nW

arni

ng a

nd S

yste

m

Rea

ctio

nR

epai

r

5202

40 -

19

= E

xter

nal

Bra

ke D

eman

d S

yste

m

(VR

DU

) -

rece

ived

net

wor

k da

ta in

err

or

Ext

erna

l Bra

ke

Req

uest

, Sev

ere

Err

orE

CU

inte

rface

sev

ere

erro

r w

ill b

e se

t if:

- The

CA

N s

igna

ls o

f the

par

amet

eriz

ed in

terfa

ce

have

dat

a er

ror

(che

cksu

m, c

ount

er, f

orm

at

inco

rrec

t, m

essa

ge c

onte

nt im

plau

sibl

e) o

r- T

imeo

ut e

rror

occ

urre

d du

ring

exec

utio

n of

the

exte

rnal

req

uest

.

No

Driv

er W

arni

ng, A

BS

fu

lly a

vaila

ble

• C

heck

the

VR

DU

ele

ctro

nic

devi

ce (

is th

ere

an in

tern

al

failu

re m

emor

y of

VR

DU

?) a

nd r

epai

r/re

plac

e it,

if

nece

ssar

y.•

Che

ck th

e A

BS

EC

U a

nd r

epla

ce it

, if n

eces

sary

. R

emar

k: V

RD

U =

Vid

eo R

adar

Dec

isio

n U

nit

5202

47 -

31

= Fa

ilure

M

emor

y B

it (E

SC

) -

cond

ition

exi

sts

ES

C M

emor

ybit

Was

A

ctiv

ated

A s

enso

r fa

ilure

(ya

w ra

te, l

ater

al a

ccel

erat

ion,

st

eerin

g an

gle)

occ

urre

d in

the

last

igni

tion

cycl

e an

d ha

s ac

tivat

ed th

e E

SC

mem

ory

func

tion.

Yello

w E

SC

War

ning

, A

BS

fully

ava

ilabl

e,

ES

C s

witc

hed

off

• R

epai

r th

e re

leva

nt s

enso

r fa

ilure

(ya

w ra

te, l

ater

al

acce

lera

tion,

ste

erin

g an

gle)

that

is s

tore

d in

err

or

mem

ory.

5202

72 -

13

= E

OL

Par

amet

er E

SC

-Fun

ctio

n (S

teer

ing

Rat

io P

aram

eter

s)

- ou

t of c

alib

ratio

n

Ste

erin

g A

ngle

P

aram

eter

s A

re N

ot

Cor

rect

Con

figur

ed p

aram

eter

val

ue fo

r S

teer

Ag

func

tion

is n

ot v

alid

.W

hen

qual

ity v

alue

of a

ll of

the

para

met

ers

belo

w

are

grea

ter

than

or

equa

ls 1

0, th

en th

e fa

ilure

de

tect

ion

shal

l be

activ

ated

.-

PR

Mnu

mS

teer

Rat

Lrng

Mod

- P

RM

angO

utrR

i-

PR

MrS

teer

Out

rRi

- P

RM

angI

nrR

i-

PR

MrS

teer

InrR

i-

PR

Man

gInr

Le-

PR

MrS

teer

InrL

e-

PR

Man

gOut

rLe

- P

RM

rSte

erO

utrL

e

Yello

w E

SC

War

ning

, A

BS

fully

ava

ilabl

e,

ES

C s

witc

hed

off

• C

heck

the

rele

vant

EO

L pa

ram

eter

s an

d co

rrec

t the

m.

5202

90 -

9 =

Fou

r Whe

el

Aux

iliar

y P

arki

ng B

rake

S

yste

m -

abn

orm

al u

pdat

e ra

te

Mal

func

tion

of

Aux

iliar

y P

arkb

rake

F

unct

ion

The

circ

umst

ance

s (s

uppl

y pr

essu

re, e

tc.)

do

not

ensu

re a

saf

e op

erat

ion

of a

uxili

ary

park

bra

ke

func

tion.

Yello

w D

river

War

ning

, A

BS

fully

ava

ilabl

e•

Che

ck if

an

inco

rrec

t driv

er b

ehav

ior

occu

rred

dur

ing

activ

e 4-

whe

el p

ark

brak

e fu

nctio

n (ig

nitio

n-of

f, pa

rkbr

ake

rele

ase,

eng

ine

stop

s ru

nnin

g, e

tc.)

.•

Che

ck if

the

supp

ly p

ress

ure

is to

o lo

w.

• C

heck

if th

e fr

ont a

xle

pres

sure

con

trol

is fa

ulty

.

5203

10 -

2 =

Ele

ctro

nic

Air

Dry

er -

dat

a er

ratic

, in

term

itten

t or

inco

rrec

t

EA

PU

- A

irDry

er/

Pre

ssur

e S

enso

r P

laus

ibili

ty F

ault

Min

imum

one

pre

ssur

e se

nsor

val

ue is

not

pl

ausi

ble

com

pare

d to

ano

ther

val

ue.

Det

ectio

n tim

e: a

ppro

x. 1

min

ute

with

diff

eren

ce

500

mba

r

Yello

w D

river

War

ning

, A

BS

fully

ava

ilabl

e•

Che

ck s

enso

r 1

or s

enso

r 2.

5203

10 -

7 =

Ele

ctro

nic

Air

Dry

er -

mec

hani

cal s

yste

m

not r

espo

ndin

g co

rrec

tly o

r ou

t of a

djus

tmen

t

EA

PU

- A

irDry

er/

Reg

ener

atio

n Fa

ult

The

sys

tem

pre

ssur

e do

es n

ot d

rop

durin

g re

gene

ratio

n.

Det

ectio

n tim

e: im

med

iate

at t

he e

nd o

f a

rege

nera

tion

proc

ess

Yello

w D

river

War

ning

, A

BS

fully

ava

ilabl

e•

Che

ck r

egen

erat

ion

orifi

ce (

bloc

ked?

).•

Che

ck s

olen

oid

bloc

k.•

Che

ck s

ilenc

er (

bloc

ked?

).

5203

10 -

8 =

Ele

ctro

nic

Air

Dry

er -

abn

orm

al fr

eque

ncy,

pu

lse

wid

th o

r pe

riod

EA

PU

- A

irDry

er/F

ail

Saf

e M

ode

No

inpu

t pre

ssur

e to

gen

erat

e sy

stem

pre

ssur

e av

aila

ble

or c

ompr

esso

r/re

gene

ratio

n va

lve

failu

re

activ

e.

Yello

w D

river

War

ning

, A

BS

fully

ava

ilabl

e•

Che

ck p

aram

eter

set

ting

(con

figur

atio

n of

sen

sors

, Air1

-m

essa

ge c

onfig

urat

ion)

.•

Che

ck p

ress

ure

sign

als

in A

ir1/B

rake

s m

essa

ge.

5203

10 -

9 =

Ele

ctro

nic

Air

Dry

er -

abn

orm

al u

pdat

e ra

te

EA

PU

- A

irDry

er/

Mec

hani

cal M

ode

due

to m

anda

tory

CA

N

sign

als

(eng

ine

stat

e)

One

of t

he r

ecei

ved

CA

N m

essa

ges

from

the

engi

ne s

yste

m h

as ti

med

out

or

one

data

is in

valid

.D

etec

tion

time:

app

rox.

4x

cycl

e tim

e

Yello

w D

river

War

ning

, A

BS

fully

ava

ilabl

e•

Che

ck p

aram

eter

set

ting

(con

figur

atio

n of

man

dato

ry

CA

N in

puts

).•

Che

ck if

nec

essa

ry C

AN

mes

sage

s ar

e av

aila

ble.

5203

10 -

10

= E

lect

roni

c A

ir D

ryer

- a

bnor

mal

rate

of

chan

ge

EA

PU

- A

irDry

er/

Volu

me

Com

pres

sor

Faul

t

The

sys

tem

pre

ssur

e re

ache

s a

high

pre

ssur

e le

vel m

uch

too

fast

.D

etec

tion

time:

imm

edia

te a

t the

end

of a

pum

ping

ph

ase

Yello

w D

river

War

ning

, A

BS

fully

ava

ilabl

e•

Che

ck p

aram

eter

set

ting

(com

pres

sor

char

acte

ristic

).

5203

10 -

14

= E

lect

roni

c A

ir D

ryer

- s

peci

al in

stru

ctio

nsE

AP

U -

AirD

ryer

/No

Am

bien

t Tem

pera

ture

A

vaila

ble

The

am

bien

t con

ditio

n m

essa

ge h

as ti

med

out

or

one

data

is in

valid

.D

etec

tion

time:

app

rox.

4x

cycl

e tim

e

Yello

w D

river

War

ning

, A

BS

fully

ava

ilabl

e•

Che

ck p

aram

eter

set

ting

(con

figur

atio

n of

CA

N in

put:

ambi

ent c

ondi

tion)

.•

Che

ck if

nec

essa

ry C

AN

mes

sage

s ar

e av

aila

ble.

4013155a

Page 44: Maintenance Manual MM-1719 Anti-Lock Braking System · PDF fileMaintenance Manual MM-1719 Anti-Lock Braking System (ABS) and Electronic Stability Control (ESC) For Modular Braking

5 SPN FMI Fault Codes

40 Meritor WABCO Maintenance Manual MM-1719 (Issued 06-17)

Figure 5.25

DTC

SP

N F

MI

Failu

re D

etec

tion

Nam

eFa

ilure

Det

ectio

n D

escr

iptio

nW

arni

ng a

nd S

yste

m

Rea

ctio

nR

epai

r

5205

01 -

2 =

Whe

el S

peed

S

ensi

ng a

nd P

olew

heel

-

Axl

e 1

Left

- da

ta e

rrat

ic,

inte

rmitt

ent o

r in

corr

ect

Whe

el S

peed

C

hatte

ring

Failu

re a

t A

xle

1 Le

ft

Und

esira

ble

jum

ps in

whe

el s

peed

is r

ecog

nize

d as

cha

tterin

g. W

hen

this

beh

avio

r of

cha

tterin

g is

act

ive

for

cert

ain

time

perio

d, th

e w

heel

spe

ed

chat

terin

g fa

ult w

ill b

e re

cogn

ized

.D

etec

tion

is o

nly

activ

e if

vehi

cle

refe

renc

e sp

eed

is m

ore

than

15

km/h

.

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

the

fittin

g an

d m

ount

ing

of th

e re

leva

nt w

heel

sp

eed

sens

or. (

Can

vib

ratio

ns c

ause

cha

tterin

g?)

• C

heck

the

rele

vant

foun

datio

n br

ake

for

inad

mis

sibl

e vi

brat

ions

(re

turn

spr

ing

defe

ct?

brak

e lin

ings

loos

ened

?).

5205

01 -

7 =

Whe

el S

peed

S

ensi

ng a

nd P

olew

heel

-

Axl

e 1

Left

- m

echa

nica

l sy

stem

not

res

pond

ing

prop

erly

or

out o

f ad

just

men

t

Whe

el S

peed

P

erm

anen

t Slip

Fa

ilure

at A

xle

1 Le

ft

Whe

n a

sens

or is

left

unco

nnec

ted

from

toot

hw

heel

ass

embl

y, n

o w

heel

spe

eds

are

mea

sure

d in

this

par

ticul

ar w

heel

, res

ultin

g in

larg

er s

lip

valu

e on

this

whe

el. T

his

cond

ition

will

res

ult i

n pe

rman

ent s

lip fa

ilure

on

this

whe

el.

Thi

s er

ror

dete

ctio

n is

pos

sibl

e in

thre

e di

ffere

nt

way

s:S

ourc

e 1:

Bas

ed o

n w

heel

slip

sig

nal (

lam

bda

sign

al)

from

AB

S c

ontr

ol fu

nctio

n.S

ourc

e 2:

Bas

ed o

n w

heel

spe

ed v

alue

s.S

ourc

e 3:

Whe

n se

nsor

sta

tus

is in

valid

due

to

high

freq

uenc

y si

gnal

mea

sure

d by

sen

sor.

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

the

rele

vant

whe

el s

peed

sen

sor

and

its fi

tting

. Is

the

dist

ance

bet

wee

n to

oth

whe

el a

nd s

enso

r (a

ir ga

p)

too

wid

e?•

Che

ck th

e w

heel

spe

ed s

enso

r fo

r co

rrec

t vol

tage

out

put.

(Is

volta

ge o

utpu

t suf

ficie

nt?)

• If

sens

or a

nd a

ir ga

p ar

e co

rrec

t, co

ntac

t the

Mer

itor

OnT

rac™

Cus

tom

er C

all C

ente

r at

866

-OnT

rac1

(66

8-72

21).

5205

01 -

9 =

Whe

el S

peed

S

ensi

ng a

nd P

olew

heel

-

Axl

e 1

Left

- ab

norm

al

upda

te ra

te

Whe

el S

peed

Jum

p D

own

Det

ectio

n at

A

xle

1 Le

ft

Jum

p do

wn

failu

re is

det

ecte

d w

hen

whe

el s

peed

dr

ops

sudd

enly

to s

tand

still

from

hig

her

spee

ds.

The

failu

re c

an h

appe

n be

caus

e of

larg

er a

ir ga

p be

twee

n to

oth

whe

el a

nd s

enso

r, or

due

to s

enso

r ge

tting

mis

alig

ned

whi

le d

rivin

g.

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

the

rele

vant

whe

el s

peed

sen

sor

and

its fi

tting

. Is

the

dist

ance

bet

wee

n to

oth

whe

el a

nd s

enso

r (a

ir ga

p) to

o w

ide

or is

the

sens

or fi

tting

loos

e?•

If se

nsor

and

fitti

ng a

re c

orre

ct, c

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at 8

66-O

nTra

c1 (

668-

7221

).

5205

01 -

10

= W

heel

Spe

ed

Sen

sing

and

Pol

ewhe

el -

A

xle

1 Le

ft -

abno

rmal

rate

of

cha

nge

Whe

el S

peed

Jum

p U

p D

etec

tion

at A

xle

1 Le

ft

Larg

er a

ir ga

p be

twee

n se

nsor

and

toot

h w

heel

will

le

ad to

jum

p up

failu

re.

Jum

p up

failu

re w

ill b

e de

tect

ed w

hen

whe

els

star

t ro

tatin

g fr

om s

tand

still

.

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

the

rele

vant

whe

el s

peed

sen

sor

and

its fi

tting

. Is

the

sens

or fi

tting

loos

e?•

If se

nsor

and

fitti

ng a

re c

orre

ct, c

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at 8

66-O

nTra

c1 (

668-

7221

).

5205

01 -

13

= W

heel

Spe

ed

Sen

sing

and

Pol

ewhe

el

- A

xle

1 Le

ft -

out o

f ca

libra

tion

Impe

rmis

sabl

e T

ire

Siz

e D

etec

ted

at A

xle

1 Le

ft

Whe

n de

viat

ion

of ti

re s

ize

is g

reat

er th

an th

e al

low

able

lim

it, th

e im

perm

issi

ble

tire

size

err

or

shal

l be

set f

or th

e co

ncer

ned

whe

el.

The

sof

twar

e sh

all r

epor

t im

perm

issi

ble

tire

size

er

ror

for

a w

heel

if th

e m

inim

um o

f all

unco

rrec

ted

whe

el s

peed

s in

the

vehi

cle

is g

reat

er th

an 2

0 km

/h.

Whe

n th

e pr

econ

ditio

ns a

re s

atis

fied

with

any

of

the

follo

win

g co

nditi

ons,

then

the

impe

rmis

sibl

e tir

e si

ze e

rror

sha

ll be

set

for

the

conc

erne

d w

heel

:- T

he d

iffer

ence

in c

orre

ctio

n va

lues

bet

wee

n th

e le

ft an

d rig

ht w

heel

s of

an

axle

exc

eeds

10%

.-

Cor

rect

ion

valu

e of

the

whe

el is

mor

e th

an 1

4%.

- Whe

el s

peed

dev

iatio

n be

twee

n th

e le

ft an

d rig

ht

whe

els

of a

n ax

le e

xcee

ds 1

0%.

- Whe

el s

peed

dev

iatio

n of

the

whe

el c

ompa

red

to th

e av

erag

e fr

ont a

xle

whe

el s

peed

is g

reat

er

than

14%

.

Yello

w D

river

War

ning

, A

BS

par

tly o

r co

mpl

etel

y sw

itche

d of

f

• C

heck

all

tires

of t

he v

ehic

le c

once

rnin

g co

rrec

t siz

e.•

Che

ck th

e E

OL

para

met

ers

(tire

circ

umfe

renc

e, to

oth

whe

el te

eth

num

bers

).

4013156a

Page 45: Maintenance Manual MM-1719 Anti-Lock Braking System · PDF fileMaintenance Manual MM-1719 Anti-Lock Braking System (ABS) and Electronic Stability Control (ESC) For Modular Braking

5 SPN FMI Fault Codes

41Meritor WABCO Maintenance Manual MM-1719 (Issued 06-17)

Figure 5.26

DTC

SP

N F

MI

Failu

re D

etec

tion

Nam

eFa

ilure

Det

ectio

n D

escr

iptio

nW

arni

ng a

nd S

yste

m

Rea

ctio

nR

epai

r

5205

01 -

14

= W

heel

Spe

ed

Sen

sing

and

Pol

ewhe

el

- A

xle

1 Le

ft -

spec

ial

inst

ruct

ions

Impe

rmis

sabl

e D

evia

tion

of T

ire S

ize

Det

ecte

d at

Axl

e 1

Left

Whe

n w

heel

spe

ed d

evia

tes

from

the

fast

est

whe

el b

y m

ore

than

the

allo

wab

le li

mit,

the

impe

rmis

sibl

e de

viat

ion

erro

r sh

all b

e re

port

ed fo

r th

e co

ncer

ned

whe

el.

The

sof

twar

e sh

all m

onito

r th

e w

heel

spe

eds

only

w

hen

the

min

imum

whe

el s

peed

is 2

0 km

/h o

r hi

gher

.T

he s

oftw

are

shal

l rep

ort ‘

impe

rmis

sibl

e de

viat

ion’

er

ror

for

a w

heel

if th

e co

mpe

nsat

ed s

peed

of

conc

erne

d w

heel

dev

iate

s fr

om th

e m

axim

um

com

pens

ated

whe

el s

peed

by

mor

e th

an 1

0%.

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

all

tires

of t

he v

ehic

le c

once

rnin

g co

rrec

t siz

e.•

Che

ck th

e E

OL

para

met

ers

(tire

circ

umfe

renc

e, to

oth

whe

el te

eth

num

bers

).

5205

02 -

2 =

Whe

el S

peed

S

ensi

ng a

nd P

olew

heel

-

Axl

e 1

Rig

ht -

dat

a er

ratic

, in

term

itten

t or

inco

rrec

t

Whe

el S

peed

C

hatte

ring

Failu

re a

t A

xle

1 R

ight

Und

esira

ble

jum

ps in

whe

el s

peed

is r

ecog

nize

d as

cha

tterin

g. W

hen

this

beh

avio

r of

cha

tterin

g is

ac

tive

for

a ce

rtai

n tim

e pe

riod,

the

whe

el s

peed

ch

atte

ring

faul

t will

be

reco

gniz

ed.

Det

ectio

n is

onl

y ac

tive

if ve

hicl

e re

fere

nce

spee

d is

mor

e th

an 1

5 km

/h.

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

the

fittin

g an

d m

ount

ing

of th

e re

leva

nt w

heel

sp

eed

sens

or. (

Can

vib

ratio

ns c

ause

cha

tterin

g?)

• C

heck

the

rele

vant

foun

datio

n br

ake

for

inad

mis

sibl

e vi

brat

ions

(re

turn

spr

ing

defe

ct?

brak

e lin

ings

loos

ened

?).

5205

02 -

7 =

Whe

el S

peed

S

ensi

ng a

nd P

olew

heel

-

Axl

e 1

Rig

ht -

mec

hani

cal

syst

em n

ot r

espo

ndin

g pr

oper

ly o

r ou

t of

adju

stm

ent

Whe

el S

peed

P

erm

anen

t Slip

Fa

ilure

at A

xle

1 R

ight

Whe

n a

sens

or is

left

unco

nnec

ted

from

toot

h w

heel

ass

embl

y, n

o w

heel

spe

eds

are

mea

sure

d in

this

par

ticul

ar w

heel

res

ultin

g in

larg

er s

lip

valu

e on

this

whe

el. T

his

cond

ition

will

res

ult i

n pe

rman

ent s

lip fa

ilure

on

this

whe

el. T

his

erro

r de

tect

ion

is p

ossi

ble

in th

ree

diffe

rent

way

s:S

ourc

e 1:

Bas

ed o

n w

heel

slip

sig

nal (

lam

bda

sign

al)

from

AB

S c

ontr

ol fu

nctio

n.S

ourc

e 2:

Bas

ed o

n w

heel

spe

ed v

alue

s.S

ourc

e 3:

Whe

n se

nsor

sta

tus

is in

valid

due

to

high

freq

uenc

y si

gnal

mea

sure

d by

sen

sor.

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

the

rele

vant

whe

el s

peed

sen

sor

and

its fi

tting

. Is

the

dist

ance

bet

wee

n to

oth

whe

el a

nd s

enso

r (a

ir ga

p)

too

wid

e?•

Che

ck th

e w

heel

spe

ed s

enso

r fo

r co

rrec

t vol

tage

out

put.

(Is

volta

ge o

utpu

t suf

ficie

nt?)

• If

sens

or a

nd a

ir ga

p ar

e co

rrec

t, co

ntac

t the

Mer

itor

OnT

rac™

Cus

tom

er C

all C

ente

r at

866

-OnT

rac1

(66

8-72

21).

5205

02 -

9 =

Whe

el S

peed

S

ensi

ng a

nd P

olew

heel

-

Axl

e 1

Rig

ht -

abn

orm

al

upda

te ra

te

Whe

el S

peed

Jum

p D

own

Det

ectio

n at

A

xle

1 R

ight

Jum

p do

wn

failu

re is

det

ecte

d w

hen

whe

el s

peed

dr

ops

sudd

enly

to s

tand

still

from

hig

her

spee

ds.

The

failu

re c

an h

appe

n be

caus

e of

larg

er a

ir ga

p be

twee

n to

oth

whe

el a

nd s

enso

r or

due

to s

enso

r ge

tting

mis

alig

ned

whi

le d

rivin

g.

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

the

rele

vant

whe

el s

peed

sen

sor

and

its fi

tting

. Is

the

dist

ance

bet

wee

n to

oth

whe

el a

nd s

enso

r (a

ir ga

p) to

o w

ide

or is

the

sens

or fi

tting

loos

e?•

If se

nsor

and

fitti

ng a

re c

orre

ct, c

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at 8

66-O

nTra

c1 (

668-

7221

).

5205

02 -

10

= W

heel

Spe

ed

Sen

sing

and

Pol

ewhe

el -

A

xle

1 R

ight

- a

bnor

mal

rate

of

cha

nge

Whe

el S

peed

Jum

p U

p D

etec

tion

at A

xle

1 R

ight

Larg

er a

ir ga

p be

twee

n se

nsor

and

toot

h w

heel

will

le

ad to

jum

p up

failu

re.

Jum

p up

failu

re w

ill b

e de

tect

ed w

hen

whe

els

star

t ro

tatin

g fr

om s

tand

still

.

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

the

rele

vant

whe

el s

peed

sen

sor

and

its fi

tting

. Is

the

sens

or fi

tting

loos

e?•

If se

nsor

and

fitti

ng a

re c

orre

ct, c

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at 8

66-O

nTra

c1 (

668-

7221

).

4013157a

Page 46: Maintenance Manual MM-1719 Anti-Lock Braking System · PDF fileMaintenance Manual MM-1719 Anti-Lock Braking System (ABS) and Electronic Stability Control (ESC) For Modular Braking

5 SPN FMI Fault Codes

42 Meritor WABCO Maintenance Manual MM-1719 (Issued 06-17)

Figure 5.27

DTC

SP

N F

MI

Failu

re D

etec

tion

Nam

eFa

ilure

Det

ectio

n D

escr

iptio

nW

arni

ng a

nd S

yste

m

Rea

ctio

nR

epai

r

5205

02 -

13

= W

heel

Spe

ed

Sen

sing

and

Pol

ewhe

el

- A

xle

1 R

ight

- o

ut o

f ca

libra

tion

Impe

rmis

sabl

e T

ire

Siz

e D

etec

ted

at A

xle

1 R

ight

Whe

n de

viat

ion

of ti

re s

ize

is g

reat

er th

an th

e al

low

able

lim

it, th

e im

perm

issi

ble

tire

size

err

or

shal

l be

set f

or th

e co

ncer

ned

whe

el.

The

sof

twar

e sh

all r

epor

t ‘im

perm

issi

ble

tire

size

er

ror’

for

a w

heel

if th

e m

inim

um o

f all

unco

rrec

ted

whe

el s

peed

s in

the

vehi

cle

is g

reat

er th

an 2

0 km

/h.

Whe

n th

e pr

econ

ditio

ns a

re s

atis

fied

with

any

of

the

follo

win

g co

nditi

ons,

then

the

impe

rmis

sibl

e tir

e si

ze e

rror

sha

ll be

set

for

the

conc

erne

d w

heel

:- T

he d

iffer

ence

in c

orre

ctio

n va

lues

bet

wee

n th

e le

ft an

d rig

ht w

heel

s of

an

axle

exc

eeds

10%

.-

Cor

rect

ion

valu

e of

the

whe

el is

mor

e th

an 1

4%.

- Whe

el s

peed

dev

iatio

n be

twee

n th

e le

ft an

d rig

ht

whe

els

of a

n ax

le e

xcee

ds 1

0%.

- Whe

el s

peed

dev

iatio

n of

the

whe

el c

ompa

red

to th

e av

erag

e fr

ont a

xle

whe

el s

peed

is g

reat

er

than

14%

.

Yello

w D

river

War

ning

, A

BS

par

tly o

r co

mpl

etel

y sw

itche

d of

f

• C

heck

all

tires

of t

he v

ehic

le c

once

rnin

g co

rrec

t siz

e.•

Che

ck th

e E

OL

para

met

ers

(tire

circ

umfe

renc

e, to

oth

whe

el te

eth

num

bers

).

5205

02 -

14

= W

heel

Spe

ed

Sen

sing

and

Pol

ewhe

el

- A

xle

1 R

ight

- s

peci

al

inst

ruct

ions

Impe

rmis

sabl

e D

evia

tion

of T

ire S

ize

Det

ecte

d at

Axl

e 1

Rig

ht

Whe

n w

heel

spe

ed d

evia

tes

from

the

fast

est

whe

el b

y m

ore

than

the

allo

wab

le li

mit,

the

impe

rmis

sibl

e de

viat

ion

erro

r sh

all b

e re

port

ed fo

r th

e co

ncer

ned

whe

el.

The

sof

twar

e sh

all m

onito

r th

e w

heel

spe

eds

only

w

hen

the

min

imum

whe

el s

peed

is 2

0 km

/h o

r hi

gher

.T

he s

oftw

are

shal

l rep

ort ‘

impe

rmis

sibl

e de

viat

ion’

er

ror

for

a w

heel

if th

e co

mpe

nsat

ed s

peed

of

conc

erne

d w

heel

dev

iate

s fr

om th

e m

axim

um

com

pens

ated

whe

el s

peed

by

mor

e th

an 1

0%.

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

all

tires

of t

he v

ehic

le c

once

rnin

g co

rrec

t siz

e.•

Che

ck th

e E

OL

para

met

ers

(tire

circ

umfe

renc

e, to

oth

whe

el te

eth

num

bers

).

5205

03 -

2 =

Whe

el S

peed

S

ensi

ng a

nd P

olew

heel

-

Axl

e 2

Left

- da

ta e

rrat

ic,

inte

rmitt

ent o

r in

corr

ect

Whe

el S

peed

C

hatte

ring

Failu

re a

t A

xle

2 Le

ft

Und

esira

ble

jum

ps in

whe

el s

peed

is r

ecog

nize

d as

cha

tterin

g. W

hen

this

beh

avio

r of

cha

tterin

g is

act

ive

for

cert

ain

time

perio

d, th

e w

heel

spe

ed

chat

terin

g fa

ult w

ill b

e re

cogn

ized

.D

etec

tion

is o

nly

activ

e if

vehi

cle

refe

renc

e sp

eed

is m

ore

than

15

km/h

.

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

the

fittin

g an

d m

ount

ing

of th

e re

leva

nt w

heel

sp

eed

sens

or. (

Can

vib

ratio

ns c

ause

cha

tterin

g?)

• C

heck

the

rele

vant

foun

datio

n br

ake

for

inad

mis

sibl

e vi

brat

ions

(re

turn

spr

ing

defe

ct?

brak

e lin

ings

loos

ened

?).

5205

03 -

7 =

Whe

el S

peed

S

ensi

ng a

nd P

olew

heel

-

Axl

e 2

Left

- m

echa

nica

l sy

stem

not

res

pond

ing

prop

erly

or

out o

f ad

just

men

t

Whe

el S

peed

P

erm

anen

t Slip

Fa

ilure

at A

xle

2 Le

ft

Whe

n a

sens

or is

left

unco

nnec

ted

from

toot

h w

heel

ass

embl

y, n

o w

heel

spe

eds

are

mea

sure

d in

this

par

ticul

ar w

heel

, res

ultin

g in

larg

er s

lip

valu

e on

this

whe

el. T

his

cond

ition

will

res

ult i

n pe

rman

ent s

lip fa

ilure

on

this

whe

el.

Thi

s er

ror

dete

ctio

n is

pos

sibl

e in

thre

e di

ffere

nt

way

s:S

ourc

e 1:

Bas

ed o

n w

heel

slip

sig

nal (

lam

bda

sign

al)

from

AB

S c

ontr

ol fu

nctio

n.S

ourc

e 2:

Bas

ed o

n w

heel

spe

ed v

alue

s.S

ourc

e 3:

Whe

n se

nsor

sta

tus

is in

valid

due

to

high

freq

uenc

y si

gnal

mea

sure

d by

sen

sor.

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

the

rele

vant

whe

el s

peed

sen

sor

and

its fi

tting

. Is

the

dist

ance

bet

wee

n to

oth

whe

el a

nd s

enso

r (a

ir ga

p)

too

wid

e?•

Che

ck th

e w

heel

spe

ed s

enso

r fo

r co

rrec

t vol

tage

out

put.

(Is

volta

ge o

utpu

t suf

ficie

nt?)

• If

sens

or a

nd a

ir ga

p ar

e co

rrec

t, co

ntac

t the

Mer

itor

OnT

rac™

Cus

tom

er C

all C

ente

r at

866

-OnT

rac1

(66

8-72

21).

5205

03 -

9 =

Whe

el S

peed

S

ensi

ng a

nd P

olew

heel

-

Axl

e 2

Left

- ab

norm

al

upda

te ra

te

Whe

el S

peed

Jum

p D

own

Det

ectio

n at

A

xle

2 Le

ft

Jum

p do

wn

failu

re is

det

ecte

d w

hen

whe

el s

peed

dr

ops

sudd

enly

to s

tand

still

from

hig

her

spee

ds.

The

failu

re c

an h

appe

n be

caus

e of

larg

er a

ir ga

p be

twee

n to

oth

whe

el a

nd s

enso

r or

due

to s

enso

r ge

tting

mis

alig

ned

whi

le d

rivin

g.

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

the

rele

vant

whe

el s

peed

sen

sor

and

its fi

tting

. Is

the

dist

ance

bet

wee

n to

oth

whe

el a

nd s

enso

r (a

ir ga

p) to

o w

ide

or is

the

sens

or fi

tting

loos

e?•

If se

nsor

and

fitti

ng a

re c

orre

ct, c

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at 8

66-O

nTra

c1 (

668-

7221

).

4013158a

Page 47: Maintenance Manual MM-1719 Anti-Lock Braking System · PDF fileMaintenance Manual MM-1719 Anti-Lock Braking System (ABS) and Electronic Stability Control (ESC) For Modular Braking

5 SPN FMI Fault Codes

43Meritor WABCO Maintenance Manual MM-1719 (Issued 06-17)

Figure 5.28

DTC

SP

N F

MI

Failu

re D

etec

tion

Nam

eFa

ilure

Det

ectio

n D

escr

iptio

nW

arni

ng a

nd S

yste

m

Rea

ctio

nR

epai

r

5205

03 -

10

= W

heel

Spe

ed

Sen

sing

and

Pol

ewhe

el -

A

xle

2 Le

ft -

abno

rmal

rate

of

cha

nge

Whe

el S

peed

Jum

p U

p D

etec

tion

at A

xle

2 Le

ft

Larg

er a

ir ga

p be

twee

n se

nsor

and

toot

h w

heel

w

ill le

ad to

jum

p up

failu

re. J

ump

up fa

ilure

will

be

det

ecte

d w

hen

whe

els

star

t rot

atin

g fr

om

stan

dstil

l.

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

the

rele

vant

whe

el s

peed

sen

sor

and

its fi

tting

. (Is

th

e se

nsor

fitti

ng lo

ose?

)•

If se

nsor

and

fitti

ng a

re c

orre

ct, c

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at 8

66-O

nTra

c1 (

668-

7221

).

5205

03 -

13

= W

heel

Spe

ed

Sen

sing

and

Pol

ewhe

el

- A

xle

2 Le

ft -

out o

f ca

libra

tion

Impe

rmis

sabl

e T

ire

Siz

e D

etec

ted

at A

xle

2 Le

ft

Whe

n de

viat

ion

of ti

re s

ize

is g

reat

er th

an th

e al

low

able

lim

it, th

e im

perm

issi

ble

tire

size

err

or

shal

l be

set f

or th

e co

ncer

ned

whe

el.

The

sof

twar

e sh

all r

epor

t ‘im

perm

issi

ble

tire

size

er

ror’

for

a w

heel

if th

e m

inim

um o

f all

unco

rrec

ted

whe

el s

peed

s in

the

vehi

cle

is g

reat

er th

an 2

0 km

/h.

Whe

n th

e pr

econ

ditio

ns a

re s

atis

fied

with

any

of

the

follo

win

g co

nditi

ons,

then

the

impe

rmis

sibl

e tir

e si

ze e

rror

sha

ll be

set

for

the

conc

erne

d w

heel

:- T

he d

iffer

ence

in c

orre

ctio

n va

lues

bet

wee

n th

e le

ft an

d rig

ht w

heel

s of

an

axle

exc

eeds

10%

.-

Cor

rect

ion

valu

e of

the

whe

el is

mor

e th

an 1

4%.

- Whe

el s

peed

dev

iatio

n be

twee

n th

e le

ft an

d rig

ht

whe

els

of a

n ax

le e

xcee

ds 1

0%.

- Whe

el s

peed

dev

iatio

n of

the

whe

el c

ompa

red

to th

e av

erag

e fr

ont a

xle

whe

el s

peed

is g

reat

er

than

14%

.

Yello

w D

river

War

ning

, A

BS

par

tly o

r co

mpl

etel

y sw

itche

d of

f

• C

heck

all

tires

of t

he v

ehic

le c

once

rnin

g co

rrec

t siz

e.•

Che

ck th

e E

OL

para

met

ers

(tire

circ

umfe

renc

e, to

oth

whe

el te

eth

num

bers

).

5205

03 -

14

= W

heel

Spe

ed

Sen

sing

and

Pol

ewhe

el

- A

xle

2 Le

ft -

spec

ial

inst

ruct

ions

Impe

rmis

sabl

e D

evia

tion

of T

ire S

ize

Det

ecte

d at

Axl

e 2

Left

Whe

n w

heel

spe

ed d

evia

tes

from

the

fast

est

whe

el b

y m

ore

than

the

allo

wab

le li

mit,

the

impe

rmis

sibl

e de

viat

ion

erro

r sh

all b

e re

port

ed fo

r th

e co

ncer

ned

whe

el.

The

sof

twar

e sh

all m

onito

r th

e w

heel

spe

eds

only

w

hen

the

min

imum

whe

el s

peed

is 2

0 km

/h o

r hi

gher

.T

he s

oftw

are

shal

l rep

ort ‘

impe

rmis

sibl

e de

viat

ion’

er

ror

for

a w

heel

if th

e co

mpe

nsat

ed s

peed

of

conc

erne

d w

heel

dev

iate

s fr

om th

e m

axim

um

com

pens

ated

whe

el s

peed

by

mor

e th

an 1

0%.

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

all

tires

of t

he v

ehic

le c

once

rnin

g co

rrec

t siz

e.•

Che

ck th

e E

OL

para

met

ers

(tire

circ

umfe

renc

e, to

oth

whe

el te

eth

num

bers

).

5205

04 -

2 =

Whe

el S

peed

S

ensi

ng a

nd P

olew

heel

-

Axl

e 2

Rig

ht -

dat

a er

ratic

, in

term

itten

t or

inco

rrec

t

Whe

el S

peed

C

hatte

ring

Failu

re a

t A

xle

2 R

ight

Und

esira

ble

jum

ps in

whe

el s

peed

is r

ecog

nize

d as

cha

tterin

g. W

hen

this

beh

avio

r of

cha

tterin

g is

ac

tive

for

a ce

rtai

n tim

e pe

riod,

the

whe

el s

peed

ch

atte

ring

faul

t will

be

reco

gniz

ed.

Det

ectio

n is

onl

y ac

tive

if ve

hicl

e re

fere

nce

spee

d is

mor

e th

an 1

5 km

/h.

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

the

fittin

g an

d m

ount

ing

of th

e re

leva

nt w

heel

sp

eed

sens

or. (

Can

vib

ratio

ns c

ause

cha

tterin

g?)

• C

heck

the

rele

vant

foun

datio

n br

ake

for

inad

mis

sibl

e vi

brat

ions

(re

turn

spr

ing

defe

ct?

brak

e lin

ings

loos

ened

?).

5205

04 -

7 =

Whe

el S

peed

S

ensi

ng a

nd P

olew

heel

-

Axl

e 2

Rig

ht -

mec

hani

cal

syst

em n

ot r

espo

ndin

g pr

oper

ly o

r ou

t of

adju

stm

ent

Whe

el S

peed

P

erm

anen

t Slip

Fa

ilure

at A

xle

2 R

ight

Whe

n a

sens

or is

left

unco

nnec

ted

from

toot

h w

heel

ass

embl

y, n

o w

heel

spe

eds

are

mea

sure

d in

this

par

ticul

ar w

heel

, res

ultin

g in

larg

er s

lip

valu

e on

this

whe

el. T

his

cond

ition

will

res

ult i

n pe

rman

ent s

lip fa

ilure

on

this

whe

el.

Thi

s er

ror

dete

ctio

n is

pos

sibl

e in

thre

e di

ffere

nt

way

s:S

ourc

e 1:

Bas

ed o

n w

heel

slip

sig

nal (

lam

bda

sign

al)

from

AB

S c

ontr

ol fu

nctio

n.S

ourc

e 2:

Bas

ed o

n w

heel

spe

ed v

alue

s.S

ourc

e 3:

Whe

n se

nsor

sta

tus

is in

valid

due

to

high

freq

uenc

y si

gnal

mea

sure

d by

sen

sor.

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

the

rele

vant

whe

el s

peed

sen

sor

and

its fi

tting

. Is

the

dist

ance

bet

wee

n to

oth

whe

el a

nd s

enso

r (a

ir ga

p)

too

wid

e?•

Che

ck th

e w

heel

spe

ed s

enso

r fo

r co

rrec

t vol

tage

out

put.

(Is

volta

ge o

utpu

t suf

ficie

nt?)

• R

epla

ce th

e m

ain

EC

U if

sen

sor

and

air

gap

are

corr

ect.

4013159a

Page 48: Maintenance Manual MM-1719 Anti-Lock Braking System · PDF fileMaintenance Manual MM-1719 Anti-Lock Braking System (ABS) and Electronic Stability Control (ESC) For Modular Braking

5 SPN FMI Fault Codes

44 Meritor WABCO Maintenance Manual MM-1719 (Issued 06-17)

Figure 5.29D

TC S

PN

FM

IFa

ilure

Det

ectio

n N

ame

Failu

re D

etec

tion

Des

crip

tion

War

ning

and

Sys

tem

R

eact

ion

Rep

air

5205

04 -

9 =

Whe

el S

peed

S

ensi

ng a

nd P

olew

heel

-

Axl

e 2

Rig

ht -

abn

orm

al

upda

te ra

te

Whe

el S

peed

Jum

p D

own

Det

ectio

n at

A

xle

2 R

ight

Jum

p do

wn

failu

re is

det

ecte

d w

hen

whe

el s

peed

dr

ops

sudd

enly

to s

tand

still

from

hig

her

spee

ds.

The

failu

re c

an h

appe

n be

caus

e of

larg

er a

ir ga

p be

twee

n to

oth

whe

el a

nd s

enso

r or

due

to s

enso

r ge

tting

mis

alig

ned

whi

le d

rivin

g.

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

the

rele

vant

whe

el s

peed

sen

sor

and

its fi

tting

. Is

the

dist

ance

bet

wee

n to

oth

whe

el a

nd s

enso

r (a

ir ga

p) to

o w

ide

or is

the

sens

or fi

tting

loos

e?•

If se

nsor

and

fitti

ng a

re c

orre

ct, c

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at 8

66-O

nTra

c1 (

668-

7221

).

5205

04 -

10

= W

heel

Spe

ed

Sen

sing

and

Pol

ewhe

el -

A

xle

2 R

ight

- a

bnor

mal

rate

of

cha

nge

Whe

el S

peed

Jum

p U

p D

etec

tion

at A

xle

2 R

ight

Larg

er a

ir ga

p be

twee

n se

nsor

and

toot

h w

heel

will

le

ad to

jum

p up

failu

re.

Jum

p up

failu

re w

ill b

e de

tect

ed w

hen

whe

els

star

t ro

tatin

g fr

om s

tand

still

.

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

the

rele

vant

whe

el s

peed

sen

sor

and

its fi

tting

. (Is

th

e se

nsor

fitti

ng lo

ose?

)•

If se

nsor

and

fitti

ng a

re c

orre

ct, c

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at 8

66-O

nTra

c1 (

668-

7221

).

5205

04 -

13

= W

heel

Spe

ed

Sen

sing

and

Pol

ewhe

el

- A

xle

2 R

ight

- o

ut o

f ca

libra

tion

Impe

rmis

sabl

e T

ire

Siz

e D

etec

ted

at A

xle

2 R

ight

Whe

n de

viat

ion

of ti

re s

ize

is g

reat

er th

an th

e al

low

able

lim

it, th

e im

perm

issi

ble

tire

size

err

or

shal

l be

set f

or th

e co

ncer

ned

whe

el. T

he s

oftw

are

shal

l rep

ort ‘

impe

rmis

sibl

e tir

e si

ze e

rror

’ for

a

whe

el if

the

min

imum

of a

ll un

corr

ecte

d w

heel

sp

eeds

in th

e ve

hicl

e is

gre

ater

than

20

km/h

. W

hen

the

prec

ondi

tions

are

sat

isfie

d w

ith a

ny o

f th

e fo

llow

ing

cond

ition

s, th

en th

e im

perm

issi

ble

tire

size

err

or s

hall

be s

et fo

r th

e co

ncer

ned

whe

el:

- The

diff

eren

ce in

cor

rect

ion

valu

es b

etw

een

the

left

and

right

whe

els

of a

n ax

le e

xcee

ds 1

0%.

- C

orre

ctio

n va

lue

of th

e w

heel

is m

ore

than

14%

.- W

heel

spe

ed d

evia

tion

betw

een

the

left

and

right

w

heel

s of

an

axle

exc

eeds

10%

.- W

heel

spe

ed d

evia

tion

of th

e w

heel

com

pare

d to

the

aver

age

fron

t axl

e w

heel

spe

ed is

gre

ater

th

an 1

4%.

Yello

w D

river

War

ning

, A

BS

par

tly o

r co

mpl

etel

y sw

itche

d of

f

• C

heck

all

tires

of t

he v

ehic

le c

once

rnin

g co

rrec

t siz

e.•

Che

ck th

e E

OL

para

met

ers

(tire

circ

umfe

renc

e, to

oth

whe

el te

eth

num

bers

).

5205

04 -

14

= W

heel

Spe

ed

Sen

sing

and

Pol

ewhe

el

- A

xle

2 R

ight

- s

peci

al

inst

ruct

ions

Impe

rmis

sabl

e D

evia

tion

of T

ire S

ize

Det

ecte

d at

Axl

e 2

Rig

ht

Whe

n w

heel

spe

ed d

evia

tes

from

the

fast

est

whe

el b

y m

ore

than

the

allo

wab

le li

mit,

the

impe

rmis

sibl

e de

viat

ion

erro

r sh

all b

e re

port

ed fo

r th

e co

ncer

ned

whe

el.

The

sof

twar

e sh

all m

onito

r th

e w

heel

spe

eds

only

w

hen

the

min

imum

whe

el s

peed

is 2

0 km

/h o

r hi

gher

.T

he s

oftw

are

shal

l rep

ort ‘

impe

rmis

sibl

e de

viat

ion’

er

ror

for

a w

heel

if th

e co

mpe

nsat

ed s

peed

of

conc

erne

d w

heel

dev

iate

s fr

om th

e m

axim

um

com

pens

ated

whe

el s

peed

by

mor

e th

an 1

0%.

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

all

tires

of t

he v

ehic

le c

once

rnin

g co

rrec

t siz

e.•

Che

ck th

e E

OL

para

met

ers

(tire

circ

umfe

renc

e, to

oth

whe

el te

eth

num

bers

).

5205

05 -

2 =

Whe

el S

peed

S

ensi

ng a

nd P

olew

heel

-

Axl

e 3

Left

- da

ta e

rrat

ic,

inte

rmitt

ent o

r in

corr

ect

Whe

el S

peed

C

hatte

ring

Failu

re a

t A

xle

3 Le

ft

Und

esira

ble

jum

ps in

whe

el s

peed

is r

ecog

nize

d as

cha

tterin

g. W

hen

this

beh

avio

r of

cha

tterin

g is

ac

tive

for

a ce

rtai

n tim

e pe

riod,

the

whe

el s

peed

ch

atte

ring

faul

t will

be

reco

gniz

ed.

Det

ectio

n is

onl

y ac

tive

if ve

hicl

e re

fere

nce

spee

d is

mor

e th

an 1

5 km

/h.

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

the

fittin

g an

d m

ount

ing

of th

e re

leva

nt w

heel

sp

eed

sens

or. (

Can

vib

ratio

ns c

ause

cha

tterin

g?)

• C

heck

the

rele

vant

foun

datio

n br

ake

for

inad

mis

sibl

e vi

brat

ions

(re

turn

spr

ing

defe

ct?

brak

e lin

ings

loos

ened

?).

4013160a

Page 49: Maintenance Manual MM-1719 Anti-Lock Braking System · PDF fileMaintenance Manual MM-1719 Anti-Lock Braking System (ABS) and Electronic Stability Control (ESC) For Modular Braking

5 SPN FMI Fault Codes

45Meritor WABCO Maintenance Manual MM-1719 (Issued 06-17)

Figure 5.30

DTC

SP

N F

MI

Failu

re D

etec

tion

Nam

eFa

ilure

Det

ectio

n D

escr

iptio

nW

arni

ng a

nd S

yste

m

Rea

ctio

nR

epai

r

5205

05 -

7 =

Whe

el S

peed

S

ensi

ng a

nd P

olew

heel

-

Axl

e 3

Left

- m

echa

nica

l sy

stem

not

res

pond

ing

prop

erly

or

out o

f ad

just

men

t

Whe

el S

peed

P

erm

anen

t Slip

Fa

ilure

at A

xle

3 Le

ft

Whe

n a

sens

or is

left

unco

nnec

ted

from

toot

h w

heel

ass

embl

y, n

o w

heel

spe

eds

are

mea

sure

d in

this

par

ticul

ar w

heel

res

ultin

g in

larg

er s

lip

valu

e on

this

whe

el. T

his

cond

ition

will

res

ult i

n pe

rman

ent s

lip fa

ilure

on

this

whe

el.

Thi

s er

ror

dete

ctio

n is

pos

sibl

e in

thre

e di

ffere

nt

way

s:S

ourc

e 1:

Bas

ed o

n w

heel

slip

sig

nal (

lam

bda

sign

al)

from

AB

S c

ontr

ol fu

nctio

n.S

ourc

e 2:

Bas

ed o

n w

heel

spe

ed v

alue

s.S

ourc

e 3:

Whe

n se

nsor

sta

tus

is in

valid

due

to

high

freq

uenc

y si

gnal

mea

sure

d by

sen

sor.

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

the

rele

vant

whe

el s

peed

sen

sor

and

its fi

tting

. Is

the

dist

ance

bet

wee

n to

oth

whe

el a

nd s

enso

r (a

ir ga

p)

too

wid

e?•

Che

ck th

e w

heel

spe

ed s

enso

r fo

r co

rrec

t vol

tage

out

put.

(Is

volta

ge o

utpu

t suf

ficie

nt?)

• If

sens

or a

nd a

ir ga

p ar

e co

rrec

t, co

ntac

t the

Mer

itor

OnT

rac™

Cus

tom

er C

all C

ente

r at

866

-OnT

rac1

(66

8-72

21).

5205

05 -

9 =

Whe

el S

peed

S

ensi

ng a

nd P

olew

heel

-

Axl

e 3

Left

- ab

norm

al

upda

te ra

te

Whe

el S

peed

Jum

p D

own

Det

ectio

n at

A

xle

3 Le

ft

Jum

p do

wn

failu

re is

det

ecte

d w

hen

whe

el s

peed

dr

ops

sudd

enly

to s

tand

still

from

hig

her

spee

ds.

The

failu

re c

an h

appe

n be

caus

e of

larg

er a

ir ga

p be

twee

n to

oth

whe

el a

nd s

enso

r or

due

to s

enso

r ge

tting

mis

alig

ned

whi

le d

rivin

g.

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

the

rele

vant

whe

el s

peed

sen

sor

and

its fi

tting

. Is

the

dist

ance

bet

wee

n to

oth

whe

el a

nd s

enso

r (a

ir ga

p) to

o w

ide

or is

the

sens

or fi

tting

loos

e?•

If se

nsor

and

fitti

ng a

re c

orre

ct, c

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at 8

66-O

nTra

c1 (

668-

7221

).

5205

05 -

10

= W

heel

Spe

ed

Sen

sing

and

Pol

ewhe

el -

A

xle

3 Le

ft -

abno

rmal

rate

of

cha

nge

Whe

el S

peed

Jum

p U

p D

etec

tion

at A

xle

3 Le

ft

Larg

er a

ir ga

p be

twee

n se

nsor

and

toot

h w

heel

will

le

ad to

jum

p up

failu

re.

Jum

p up

failu

re w

ill b

e de

tect

ed w

hen

whe

els

star

t ro

tatin

g fr

om s

tand

still

.

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

the

rele

vant

whe

el s

peed

sen

sor

and

its fi

tting

. (Is

th

e se

nsor

fitti

ng lo

ose?

)•

If se

nsor

and

fitti

ng a

re c

orre

ct, c

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at 8

66-O

nTra

c1 (

668-

7221

).

5205

05 -

13

= W

heel

Spe

ed

Sen

sing

and

Pol

ewhe

el

- A

xle

3 Le

ft -

out o

f ca

libra

tion

Impe

rmis

sabl

e T

ire

Siz

e D

etec

ted

at A

xle

3 Le

ft

Whe

n de

viat

ion

of ti

re s

ize

is g

reat

er th

an th

e al

low

able

lim

it, th

e im

perm

issi

ble

tire

size

err

or

shal

l be

set f

or th

e co

ncer

ned

whe

el. T

he s

oftw

are

shal

l rep

ort ‘

impe

rmis

sibl

e tir

e si

ze e

rror

’ for

a

whe

el if

the

min

imum

of a

ll un

corr

ecte

d w

heel

sp

eeds

in th

e ve

hicl

e is

gre

ater

than

20

km/h

. W

hen

the

prec

ondi

tions

are

sat

isfie

d w

ith a

ny o

f th

e fo

llow

ing

cond

ition

s, th

en th

e im

perm

issi

ble

tire

size

err

or s

hall

be s

et fo

r th

e co

ncer

ned

whe

el:

- The

diff

eren

ce in

cor

rect

ion

valu

es b

etw

een

the

left

and

right

whe

els

of a

n ax

le e

xcee

ds 1

0%.

- C

orre

ctio

n va

lue

of th

e w

heel

is m

ore

than

14%

.- W

heel

spe

ed d

evia

tion

betw

een

the

left

and

right

w

heel

s of

an

axle

exc

eeds

10%

.- W

heel

spe

ed d

evia

tion

of th

e w

heel

com

pare

d to

the

aver

age

fron

t axl

e w

heel

spe

ed is

gre

ater

th

an 1

4%.

Yello

w D

river

War

ning

, A

BS

par

tly o

r co

mpl

etel

y sw

itche

d of

f

• C

heck

all

tires

of t

he v

ehic

le c

once

rnin

g co

rrec

t siz

e.•

Che

ck th

e E

OL

para

met

ers

(tire

circ

umfe

renc

e, to

oth

whe

el te

eth

num

bers

).

5205

05 -

14

= W

heel

Spe

ed

Sen

sing

and

Pol

ewhe

el

- A

xle

3 Le

ft -

spec

ial

inst

ruct

ions

Impe

rmis

sabl

e D

evia

tion

of T

ire S

ize

Det

ecte

d at

Axl

e 3

Left

Whe

n w

heel

spe

ed d

evia

tes

from

the

fast

est

whe

el b

y m

ore

than

the

allo

wab

le li

mit,

the

impe

rmis

sibl

e de

viat

ion

erro

r sh

all b

e re

port

ed fo

r th

e co

ncer

ned

whe

el.

The

sof

twar

e sh

all m

onito

r th

e w

heel

spe

eds

only

w

hen

the

min

imum

whe

el s

peed

is 2

0 km

/h o

r hi

gher

.T

he s

oftw

are

shal

l rep

ort ‘

impe

rmis

sibl

e de

viat

ion’

er

ror

for

a w

heel

if th

e co

mpe

nsat

ed s

peed

of

conc

erne

d w

heel

dev

iate

s fr

om th

e m

axim

um

com

pens

ated

whe

el s

peed

by

mor

e th

an 1

0%.

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

all

tires

of t

he v

ehic

le c

once

rnin

g co

rrec

t siz

e.•

Che

ck th

e E

OL

para

met

ers

(tire

circ

umfe

renc

e, to

oth

whe

el te

eth

num

bers

).

4013161a

Page 50: Maintenance Manual MM-1719 Anti-Lock Braking System · PDF fileMaintenance Manual MM-1719 Anti-Lock Braking System (ABS) and Electronic Stability Control (ESC) For Modular Braking

5 SPN FMI Fault Codes

46 Meritor WABCO Maintenance Manual MM-1719 (Issued 06-17)

Figure 5.31

DTC

SP

N F

MI

Failu

re D

etec

tion

Nam

eFa

ilure

Det

ectio

n D

escr

iptio

nW

arni

ng a

nd S

yste

m

Rea

ctio

nR

epai

r

5205

06 -

2 =

Whe

el S

peed

S

ensi

ng a

nd P

olew

heel

-

Axl

e 3

Rig

ht -

dat

a er

ratic

, in

term

itten

t or

inco

rrec

t

Whe

el S

peed

C

hatte

ring

Failu

re a

t A

xle

3 R

ight

Und

esira

ble

jum

ps in

whe

el s

peed

is r

ecog

nize

d as

cha

tterin

g. W

hen

this

beh

avio

r of

cha

tterin

g is

act

ive

for

cert

ain

time

perio

d, th

e w

heel

spe

ed

chat

terin

g fa

ult w

ill b

e re

cogn

ized

.D

etec

tion

is o

nly

activ

e if

vehi

cle

refe

renc

e sp

eed

is m

ore

than

15

km/h

.

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

the

fittin

g an

d m

ount

ing

of th

e re

leva

nt w

heel

sp

eed

sens

or. (

Can

vib

ratio

ns c

ause

cha

tterin

g?)

• C

heck

the

rele

vant

foun

datio

n br

ake

for

inad

mis

sibl

e vi

brat

ions

(re

turn

spr

ing

defe

ct?

brak

e lin

ings

loos

ened

?).

5205

06 -

7 =

Whe

el S

peed

S

ensi

ng a

nd P

olew

heel

-

Axl

e 3

Rig

ht -

mec

hani

cal

syst

em n

ot r

espo

ndin

g pr

oper

ly o

r ou

t of

adju

stm

ent

Whe

el S

peed

P

erm

anen

t Slip

Fa

ilure

at A

xle

3 R

ight

Whe

n a

sens

or is

left

unco

nnec

ted

from

toot

h w

heel

ass

embl

y, n

o w

heel

spe

eds

are

mea

sure

d in

this

par

ticul

ar w

heel

res

ultin

g in

larg

er s

lip

valu

e on

this

whe

el. T

his

cond

ition

will

res

ult i

n pe

rman

ent s

lip fa

ilure

on

this

whe

el.

Thi

s er

ror

dete

ctio

n is

pos

sibl

e in

thre

e di

ffere

nt

way

s:S

ourc

e 1:

Bas

ed o

n w

heel

slip

sig

nal (

lam

bda

sign

al)

from

AB

S c

ontr

ol fu

nctio

n.S

ourc

e 2:

Bas

ed o

n w

heel

spe

ed v

alue

s.S

ourc

e 3:

Whe

n se

nsor

sta

tus

is in

valid

due

to

high

freq

uenc

y si

gnal

mea

sure

d by

sen

sor.

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

the

rele

vant

whe

el s

peed

sen

sor

and

its fi

tting

. Is

the

dist

ance

bet

wee

n to

oth

whe

el a

nd s

enso

r (a

ir ga

p)

too

wid

e?•

Che

ck th

e w

heel

spe

ed s

enso

r fo

r co

rrec

t vol

tage

out

put.

(Is

volta

ge o

utpu

t suf

ficie

nt?)

• If

sens

or a

nd a

ir ga

p ar

e co

rrec

t, co

ntac

t the

Mer

itor

OnT

rac™

Cus

tom

er C

all C

ente

r at

866

-OnT

rac1

(66

8-72

21).

5205

06 -

9 =

Whe

el S

peed

S

ensi

ng a

nd P

olew

heel

-

Axl

e 3

Rig

ht -

abn

orm

al

upda

te ra

te

Whe

el S

peed

Jum

p D

own

Det

ectio

n at

A

xle

3 R

ight

Jum

p do

wn

failu

re is

det

ecte

d w

hen

whe

el s

peed

dr

ops

sudd

enly

to s

tand

still

from

hig

her

spee

ds.

The

failu

re c

an h

appe

n be

caus

e of

larg

er a

ir ga

p be

twee

n to

oth

whe

el a

nd s

enso

r or

due

to s

enso

r ge

tting

mis

alig

ned

whi

le d

rivin

g.

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

the

rele

vant

whe

el s

peed

sen

sor

and

its fi

tting

. Is

the

dist

ance

bet

wee

n to

oth

whe

el a

nd s

enso

r (a

ir ga

p) to

o w

ide

or is

the

sens

or fi

tting

loos

e?•

If se

nsor

and

fitti

ng a

re c

orre

ct, c

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at 8

66-O

nTra

c1 (

668-

7221

).

5205

06 -

10

= W

heel

Spe

ed

Sen

sing

and

Pol

ewhe

el -

A

xle

3 R

ight

- a

bnor

mal

rate

of

cha

nge

Whe

el S

peed

Jum

p U

p D

etec

tion

at A

xle

3 R

ight

Larg

er a

ir ga

p be

twee

n se

nsor

and

toot

h w

heel

will

le

ad to

jum

p up

failu

re.

Jum

p up

failu

re w

ill b

e de

tect

ed w

hen

whe

els

star

t ro

tatin

g fr

om s

tand

still

.

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

the

rele

vant

whe

el s

peed

sen

sor

and

its fi

tting

. (Is

th

e se

nsor

fitti

ng lo

ose?

)•

If se

nsor

and

fitti

ng a

re c

orre

ct, c

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at 8

66-O

nTra

c1 (

668-

7221

).

5205

06 -

13

= W

heel

Spe

ed

Sen

sing

and

Pol

ewhe

el

- A

xle

3 R

ight

- o

ut o

f ca

libra

tion

Impe

rmis

sabl

e T

ire

Siz

e D

etec

ted

at A

xle

3 R

ight

Whe

n de

viat

ion

of ti

re s

ize

is g

reat

er th

an th

e al

low

able

lim

it, th

e im

perm

issi

ble

tire

size

err

or

shal

l be

set f

or th

e co

ncer

ned

whe

el. T

he s

oftw

are

shal

l rep

ort ‘

impe

rmis

sibl

e tir

e si

ze e

rror

’ for

a

whe

el if

the

min

imum

of a

ll un

corr

ecte

d w

heel

sp

eeds

in th

e ve

hicl

e is

gre

ater

than

20

km/h

. W

hen

the

prec

ondi

tions

are

sat

isfie

d w

ith a

ny o

f th

e fo

llow

ing

cond

ition

s, th

en th

e im

perm

issi

ble

tire

size

err

or s

hall

be s

et fo

r th

e co

ncer

ned

whe

el:

- The

diff

eren

ce in

cor

rect

ion

valu

es b

etw

een

the

left

and

right

whe

els

of a

n ax

le e

xcee

ds 1

0%.

- C

orre

ctio

n va

lue

of th

e w

heel

is m

ore

than

14%

.- W

heel

spe

ed d

evia

tion

betw

een

the

left

and

right

w

heel

s of

an

axle

exc

eeds

10%

.- W

heel

spe

ed d

evia

tion

of th

e w

heel

com

pare

d to

the

aver

age

fron

t axl

e w

heel

spe

ed is

gre

ater

th

an 1

4%.

Yello

w D

river

War

ning

, A

BS

par

tly o

r co

mpl

etel

y sw

itche

d of

f

• C

heck

all

tires

of t

he v

ehic

le c

once

rnin

g co

rrec

t siz

e.•

Che

ck th

e E

OL

para

met

ers

(tire

circ

umfe

renc

e, to

oth

whe

el te

eth

num

bers

).

4013162a

Page 51: Maintenance Manual MM-1719 Anti-Lock Braking System · PDF fileMaintenance Manual MM-1719 Anti-Lock Braking System (ABS) and Electronic Stability Control (ESC) For Modular Braking

5 SPN FMI Fault Codes

47Meritor WABCO Maintenance Manual MM-1719 (Issued 06-17)

Figure 5.32

DTC

SP

N F

MI

Failu

re D

etec

tion

Nam

eFa

ilure

Det

ectio

n D

escr

iptio

nW

arni

ng a

nd S

yste

m

Rea

ctio

nR

epai

r

5205

06 -

14

= W

heel

Spe

ed

Sen

sing

and

Pol

ewhe

el

- A

xle

3 R

ight

- s

peci

al

inst

ruct

ions

Impe

rmis

sabl

e D

evia

tion

of T

ire S

ize

Det

ecte

d at

Axl

e 3

Rig

ht

Whe

n w

heel

spe

ed d

evia

tes

from

the

fast

est

whe

el b

y m

ore

than

the

allo

wab

le li

mit,

the

impe

rmis

sibl

e de

viat

ion

erro

r sh

all b

e re

port

ed fo

r th

e co

ncer

ned

whe

el.

The

sof

twar

e sh

all m

onito

r th

e w

heel

spe

eds

only

w

hen

the

min

imum

whe

el s

peed

is 2

0 km

/h o

r hi

gher

.T

he s

oftw

are

shal

l rep

ort ‘

impe

rmis

sibl

e de

viat

ion’

er

ror

for

a w

heel

if th

e co

mpe

nsat

ed s

peed

of

conc

erne

d w

heel

dev

iate

s fr

om th

e m

axim

um

com

pens

ated

whe

el s

peed

by

mor

e th

an 1

0%.

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

all

tires

of t

he v

ehic

le c

once

rnin

g co

rrec

t siz

e.•

Che

ck th

e E

OL

para

met

ers

(tire

circ

umfe

renc

e, to

oth

whe

el te

eth

num

bers

).

5205

07 -

2 =

Whe

el S

peed

S

ensi

ng a

nd P

olew

heel

-

Axl

e 4

Left

- da

ta e

rrat

ic,

inte

rmitt

ent o

r in

corr

ect

Whe

el S

peed

C

hatte

ring

Failu

re a

t A

xle

4 Le

ft

Und

esira

ble

jum

ps in

whe

el s

peed

is r

ecog

nize

d as

cha

tterin

g. W

hen

this

beh

avio

r of

cha

tterin

g is

act

ive

for

cert

ain

time

perio

d, th

e w

heel

spe

ed

chat

terin

g fa

ult w

ill b

e re

cogn

ized

.D

etec

tion

is o

nly

activ

e if

vehi

cle

refe

renc

e sp

eed

is m

ore

than

15

km/h

.

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

the

fittin

g an

d m

ount

ing

of th

e re

leva

nt w

heel

sp

eed

sens

or. (

Can

vib

ratio

ns c

ause

cha

tterin

g?)

• C

heck

the

rele

vant

foun

datio

n br

ake

for

inad

mis

sibl

e vi

brat

ions

(re

turn

spr

ing

defe

ct?

brak

e lin

ings

loos

ened

?).

5205

07 -

7 =

Whe

el S

peed

S

ensi

ng a

nd P

olew

heel

-

Axl

e 4

Left

- m

echa

nica

l sy

stem

not

res

pond

ing

prop

erly

or

out o

f ad

just

men

t

Whe

el S

peed

P

erm

anen

t Slip

Fa

ilure

at A

xle

4 Le

ft

Whe

n a

sens

or is

left

unco

nnec

ted

from

toot

h w

heel

ass

embl

y, n

o w

heel

spe

eds

are

mea

sure

d in

this

par

ticul

ar w

heel

res

ultin

g in

larg

er s

lip

valu

e on

this

whe

el. T

his

cond

ition

will

res

ult i

n pe

rman

ent s

lip fa

ilure

on

this

whe

el.

Thi

s er

ror

dete

ctio

n is

pos

sibl

e in

thre

e di

ffere

nt

way

s:S

ourc

e 1:

Bas

ed o

n w

heel

slip

sig

nal (

lam

bda

sign

al)

from

AB

S c

ontr

ol fu

nctio

n.S

ourc

e 2:

Bas

ed o

n w

heel

spe

ed v

alue

s.S

ourc

e 3:

Whe

n se

nsor

sta

tus

is in

valid

due

to

high

freq

uenc

y si

gnal

mea

sure

d by

sen

sor.

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

the

rele

vant

whe

el s

peed

sen

sor

and

its fi

tting

. Is

the

dist

ance

bet

wee

n to

oth

whe

el a

nd s

enso

r (a

ir ga

p)

too

wid

e?•

Che

ck th

e w

heel

spe

ed s

enso

r fo

r co

rrec

t vol

tage

out

put.

(Is

volta

ge o

utpu

t suf

ficie

nt?)

• If

sens

or a

nd a

ir ga

p ar

e co

rrec

t, co

ntac

t the

Mer

itor

OnT

rac™

Cus

tom

er C

all C

ente

r at

866

-OnT

rac1

(66

8-72

21).

5205

07 -

9 =

Whe

el S

peed

S

ensi

ng a

nd P

olew

heel

-

Axl

e 4

Left

- ab

norm

al

upda

te ra

te

Whe

el S

peed

Jum

p D

own

Det

ectio

n at

A

xle

4 Le

ft

Jum

p do

wn

failu

re is

det

ecte

d w

hen

whe

el s

peed

dr

ops

sudd

enly

to s

tand

still

from

hig

her

spee

ds.

The

failu

re c

an h

appe

n be

caus

e of

larg

er a

ir ga

p be

twee

n to

oth

whe

el a

nd s

enso

r or

due

to s

enso

r ge

tting

mis

alig

ned

whi

le d

rivin

g.

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

the

rele

vant

whe

el s

peed

sen

sor

and

its fi

tting

. Is

the

dist

ance

bet

wee

n to

oth

whe

el a

nd s

enso

r (a

ir ga

p) to

o w

ide

or is

the

sens

or fi

tting

loos

e?•

If se

nsor

and

fitti

ng a

re c

orre

ct, c

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at 8

66-O

nTra

c1 (

668-

7221

).

5205

07 -

10

= W

heel

Spe

ed

Sen

sing

and

Pol

ewhe

el -

A

xle

4 Le

ft -

abno

rmal

rate

of

cha

nge

Whe

el S

peed

Jum

p U

p D

etec

tion

at A

xle

4 Le

ft

Larg

er a

ir ga

p be

twee

n se

nsor

and

toot

h w

heel

will

le

ad to

jum

p up

failu

re.

Jum

p up

failu

re w

ill b

e de

tect

ed w

hen

whe

els

star

t ro

tatin

g fr

om s

tand

still

.

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

the

rele

vant

whe

el s

peed

sen

sor

and

its fi

tting

. (Is

th

e se

nsor

fitti

ng lo

ose?

)•

If se

nsor

and

fitti

ng a

re c

orre

ct, c

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at 8

66-O

nTra

c1 (

668-

7221

).

4013163a

Page 52: Maintenance Manual MM-1719 Anti-Lock Braking System · PDF fileMaintenance Manual MM-1719 Anti-Lock Braking System (ABS) and Electronic Stability Control (ESC) For Modular Braking

5 SPN FMI Fault Codes

48 Meritor WABCO Maintenance Manual MM-1719 (Issued 06-17)

Figure 5.33

DTC

SP

N F

MI

Failu

re D

etec

tion

Nam

eFa

ilure

Det

ectio

n D

escr

iptio

nW

arni

ng a

nd S

yste

m

Rea

ctio

nR

epai

r

5205

07 -

13

= W

heel

Spe

ed

Sen

sing

and

Pol

ewhe

el

- A

xle

4 Le

ft -

out o

f ca

libra

tion

Impe

rmis

sabl

e T

ire

Siz

e D

etec

ted

at A

xle

4 Le

ft

Whe

n de

viat

ion

of ti

re s

ize

is g

reat

er th

an th

e al

low

able

lim

it, th

e im

perm

issi

ble

tire

size

err

or

shal

l be

set f

or th

e co

ncer

ned

whe

el. T

he s

oftw

are

shal

l rep

ort ‘

impe

rmis

sibl

e tir

e si

ze e

rror

’ for

a

whe

el if

the

min

imum

of a

ll un

corr

ecte

d w

heel

sp

eeds

in th

e ve

hicl

e is

gre

ater

than

20

km/h

. W

hen

the

prec

ondi

tions

are

sat

isfie

d w

ith a

ny o

f th

e fo

llow

ing

cond

ition

s, th

en th

e im

perm

issi

ble

tire

size

err

or s

hall

be s

et fo

r th

e co

ncer

ned

whe

el:

- The

diff

eren

ce in

cor

rect

ion

valu

es b

etw

een

the

left

and

right

whe

els

of a

n ax

le e

xcee

ds 1

0%.

- C

orre

ctio

n va

lue

of th

e w

heel

is m

ore

than

14%

.- W

heel

spe

ed d

evia

tion

betw

een

the

left

and

right

w

heel

s of

an

axle

exc

eeds

10%

.- W

heel

spe

ed d

evia

tion

of th

e w

heel

com

pare

d to

the

aver

age

fron

t axl

e w

heel

spe

ed is

gre

ater

th

an 1

4%.

Yello

w D

river

War

ning

, A

BS

par

tly o

r co

mpl

etel

y sw

itche

d of

f

• C

heck

all

tires

of t

he v

ehic

le c

once

rnin

g co

rrec

t siz

e.•

Che

ck th

e E

OL

para

met

ers

(tire

circ

umfe

renc

e, to

oth

whe

el te

eth

num

bers

).

5205

07 -

14

= W

heel

Spe

ed

Sen

sing

and

Pol

ewhe

el

- A

xle

4 Le

ft -

spec

ial

inst

ruct

ions

Impe

rmis

sabl

e D

evia

tion

of T

ire S

ize

Det

ecte

d at

Axl

e 4

Left

Whe

n w

heel

spe

ed d

evia

tes

from

the

fast

est

whe

el b

y m

ore

than

the

allo

wab

le li

mit,

the

impe

rmis

sibl

e de

viat

ion

erro

r sh

all b

e re

port

ed fo

r th

e co

ncer

ned

whe

el.

The

sof

twar

e sh

all m

onito

r th

e w

heel

spe

eds

only

w

hen

the

min

imum

whe

el s

peed

is 2

0 km

/h o

r hi

gher

.T

he s

oftw

are

shal

l rep

ort ‘

impe

rmis

sibl

e de

viat

ion’

er

ror

for

a w

heel

if th

e co

mpe

nsat

ed s

peed

of

conc

erne

d w

heel

dev

iate

s fr

om th

e m

axim

um

com

pens

ated

whe

el s

peed

by

mor

e th

an 1

0%.

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

all

tires

of t

he v

ehic

le c

once

rnin

g co

rrec

t siz

e.•

Che

ck th

e E

OL

para

met

ers

(tire

circ

umfe

renc

e, to

oth

whe

el te

eth

num

bers

).

5205

08 -

2 =

Whe

el S

peed

S

ensi

ng a

nd P

olew

heel

-

Axl

e 4

Rig

ht -

dat

a er

ratic

, in

term

itten

t or

inco

rrec

t

Whe

el S

peed

C

hatte

ring

Failu

re a

t A

xle

4 R

ight

Und

esira

ble

jum

ps in

whe

el s

peed

is r

ecog

nize

d as

cha

tterin

g. W

hen

this

beh

avio

r of

cha

tterin

g is

act

ive

for

cert

ain

time

perio

d, th

e w

heel

spe

ed

chat

terin

g fa

ult w

ill b

e re

cogn

ized

.D

etec

tion

is o

nly

activ

e if

vehi

cle

refe

renc

e sp

eed

is m

ore

than

15

km/h

.

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

the

fittin

g an

d m

ount

ing

of th

e re

leva

nt w

heel

sp

eed

sens

or. (

Can

vib

ratio

ns c

ause

cha

tterin

g?)

• C

heck

the

rele

vant

foun

datio

n br

ake

for

inad

mis

sibl

e vi

brat

ions

(re

turn

spr

ing

defe

ct?

brak

e lin

ings

loos

ened

?).

5205

08 -

7 =

Whe

el S

peed

S

ensi

ng a

nd P

olew

heel

-

Axl

e 4

Rig

ht -

mec

hani

cal

syst

em n

ot r

espo

ndin

g pr

oper

ly o

r ou

t of

adju

stm

ent

Whe

el S

peed

P

erm

anen

t Slip

Fa

ilure

at A

xle

4 R

ight

Whe

n a

sens

or is

left

unco

nnec

ted

from

toot

h w

heel

ass

embl

y, n

o w

heel

spe

eds

are

mea

sure

d in

this

par

ticul

ar w

heel

res

ultin

g in

larg

er s

lip

valu

e on

this

whe

el. T

his

cond

ition

will

res

ult i

n pe

rman

ent s

lip fa

ilure

on

this

whe

el.

Thi

s er

ror

dete

ctio

n is

pos

sibl

e in

thre

e di

ffere

nt

way

s:S

ourc

e 1:

Bas

ed o

n w

heel

slip

sig

nal (

lam

bda

sign

al)

from

AB

S c

ontr

ol fu

nctio

n.S

ourc

e 2:

Bas

ed o

n w

heel

spe

ed v

alue

s.S

ourc

e 3:

Whe

n se

nsor

sta

tus

is in

valid

due

to

high

freq

uenc

y si

gnal

mea

sure

d by

sen

sor.

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

the

rele

vant

whe

el s

peed

sen

sor

and

its fi

tting

. Is

the

dist

ance

bet

wee

n to

oth

whe

el a

nd s

enso

r (a

ir ga

p)

too

wid

e?•

Che

ck th

e w

heel

spe

ed s

enso

r fo

r co

rrec

t vol

tage

out

put.

(Is

volta

ge o

utpu

t suf

ficie

nt?)

• If

sens

or a

nd a

ir ga

p ar

e co

rrec

t, co

ntac

t the

Mer

itor

OnT

rac™

Cus

tom

er C

all C

ente

r at

866

-OnT

rac1

(66

8-72

21).

5205

08 -

9 =

Whe

el S

peed

S

ensi

ng a

nd P

olew

heel

-

Axl

e 4

Rig

ht -

abn

orm

al

upda

te ra

te

Whe

el S

peed

Jum

p D

own

Det

ectio

n at

A

xle

4 R

ight

Jum

p do

wn

failu

re is

det

ecte

d w

hen

whe

el s

peed

dr

ops

sudd

enly

to s

tand

still

from

hig

her

spee

ds.

The

failu

re c

an h

appe

n be

caus

e of

larg

er a

ir ga

p be

twee

n to

oth

whe

el a

nd s

enso

r or

due

to s

enso

r ge

tting

mis

alig

ned

whi

le d

rivin

g.

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

the

rele

vant

whe

el s

peed

sen

sor

and

its fi

tting

. Is

the

dist

ance

bet

wee

n to

oth

whe

el a

nd s

enso

r (a

ir ga

p) to

o w

ide

or is

the

sens

or fi

tting

loos

e?•

If se

nsor

and

fitti

ng a

re c

orre

ct, c

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at 8

66-O

nTra

c1 (

668-

7221

).

4013164a

Page 53: Maintenance Manual MM-1719 Anti-Lock Braking System · PDF fileMaintenance Manual MM-1719 Anti-Lock Braking System (ABS) and Electronic Stability Control (ESC) For Modular Braking

5 SPN FMI Fault Codes

49Meritor WABCO Maintenance Manual MM-1719 (Issued 06-17)

Figure 5.34

DTC

SP

N F

MI

Failu

re D

etec

tion

Nam

eFa

ilure

Det

ectio

n D

escr

iptio

nW

arni

ng a

nd S

yste

m

Rea

ctio

nR

epai

r

5205

08 -

10

= W

heel

Spe

ed

Sen

sing

and

Pol

ewhe

el -

A

xle

4 R

ight

- a

bnor

mal

rate

of

cha

nge

Whe

el S

peed

Jum

p U

p D

etec

tion

at A

xle

4 R

ight

Larg

er a

ir ga

p be

twee

n se

nsor

and

toot

h w

heel

will

le

ad to

jum

p up

failu

re.

Jum

p up

failu

re w

ill b

e de

tect

ed w

hen

whe

els

star

t ro

tatin

g fr

om s

tand

still

.

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

the

rele

vant

whe

el s

peed

sen

sor

and

its fi

tting

. (Is

th

e se

nsor

fitti

ng lo

ose?

)•

If se

nsor

and

fitti

ng a

re c

orre

ct, c

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at 8

66-O

nTra

c1 (

668-

7221

).

5205

08 -

13

= W

heel

Spe

ed

Sen

sing

and

Pol

ewhe

el

- A

xle

4 R

ight

- o

ut o

f ca

libra

tion

Impe

rmis

sabl

e T

ire

Siz

e D

etec

ted

at A

xle

4 R

ight

Whe

n de

viat

ion

of ti

re s

ize

is g

reat

er th

an th

e al

low

able

lim

it, th

e im

perm

issi

ble

tire

size

err

or

shal

l be

set f

or th

e co

ncer

ned

whe

el. T

he s

oftw

are

shal

l rep

ort ‘

impe

rmis

sibl

e tir

e si

ze e

rror

’ for

a

whe

el if

the

min

imum

of a

ll un

corr

ecte

d w

heel

sp

eeds

in th

e ve

hicl

e is

gre

ater

than

20

km/h

. W

hen

the

prec

ondi

tions

are

sat

isfie

d w

ith a

ny o

f th

e fo

llow

ing

cond

ition

s, th

en th

e im

perm

issi

ble

tire

size

err

or s

hall

be s

et fo

r th

e co

ncer

ned

whe

el:

- The

diff

eren

ce in

cor

rect

ion

valu

es b

etw

een

the

left

and

right

whe

els

of a

n ax

le e

xcee

ds 1

0%.

- C

orre

ctio

n va

lue

of th

e w

heel

is m

ore

than

14%

.- W

heel

spe

ed d

evia

tion

betw

een

the

left

and

right

w

heel

s of

an

axle

exc

eeds

10%

.- W

heel

spe

ed d

evia

tion

of th

e w

heel

com

pare

d to

the

aver

age

fron

t axl

e w

heel

spe

ed is

gre

ater

th

an 1

4%.

Yello

w D

river

War

ning

, A

BS

par

tly o

r co

mpl

etel

y sw

itche

d of

f

• C

heck

all

tires

of t

he v

ehic

le c

once

rnin

g co

rrec

t siz

e.•

Che

ck th

e E

OL

para

met

ers

(tire

circ

umfe

renc

e, to

oth

whe

el te

eth

num

bers

).

5205

08 -

14

= W

heel

Spe

ed

Sen

sing

and

Pol

ewhe

el

- A

xle

4 R

ight

- s

peci

al

inst

ruct

ions

Impe

rmis

sabl

e D

evia

tion

of T

ire S

ize

Det

ecte

d at

Axl

e 4

Rig

ht

Whe

n w

heel

spe

ed d

evia

tes

from

the

fast

est

whe

el b

y m

ore

than

the

allo

wab

le li

mit,

the

impe

rmis

sibl

e de

viat

ion

erro

r sh

all b

e re

port

ed fo

r th

e co

ncer

ned

whe

el.

The

sof

twar

e sh

all m

onito

r th

e w

heel

spe

eds

only

w

hen

the

min

imum

whe

el s

peed

is 2

0 km

/h o

r hi

gher

.T

he s

oftw

are

shal

l rep

ort ‘

impe

rmis

sibl

e de

viat

ion’

er

ror

for

a w

heel

if th

e co

mpe

nsat

ed s

peed

of

conc

erne

d w

heel

dev

iate

s fr

om th

e m

axim

um

com

pens

ated

whe

el s

peed

by

mor

e th

an 1

0%.

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

all

tires

of t

he v

ehic

le c

once

rnin

g co

rrec

t siz

e.•

Che

ck th

e E

OL

para

met

ers

(tire

circ

umfe

renc

e, to

oth

whe

el te

eth

num

bers

).

5205

09 -

2 =

Whe

el S

peed

S

ensi

ng a

nd P

olew

heel

-

Axl

e 5

Left

- da

ta e

rrat

ic,

inte

rmitt

ent o

r in

corr

ect

Whe

el S

peed

C

hatte

ring

Failu

re a

t A

xle

5 Le

ft

Und

esira

ble

jum

ps in

whe

el s

peed

is r

ecog

nize

d as

cha

tterin

g. W

hen

this

beh

avio

r of

cha

tterin

g is

act

ive

for

cert

ain

time

perio

d, th

e w

heel

spe

ed

chat

terin

g fa

ult w

ill b

e re

cogn

ized

.D

etec

tion

is o

nly

activ

e if

vehi

cle

refe

renc

e sp

eed

is m

ore

than

15

km/h

.

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

the

fittin

g an

d m

ount

ing

of th

e re

leva

nt w

heel

sp

eed

sens

or. (

Can

vib

ratio

ns c

ause

cha

tterin

g?)

• C

heck

the

rele

vant

foun

datio

n br

ake

for

inad

mis

sibl

e vi

brat

ions

(re

turn

spr

ing

defe

ct?

brak

e lin

ings

loos

ened

?).

5205

09 -

7 =

Whe

el S

peed

S

ensi

ng a

nd P

olew

heel

-

Axl

e 5

Left

- m

echa

nica

l sy

stem

not

res

pond

ing

prop

erly

or

out o

f ad

just

men

t

Whe

el S

peed

P

erm

anen

t Slip

Fa

ilure

at A

xle

5 Le

ft

Whe

n a

sens

or is

left

unco

nnec

ted

from

toot

h w

heel

ass

embl

y, n

o w

heel

spe

eds

are

mea

sure

d in

this

par

ticul

ar w

heel

res

ultin

g in

larg

er s

lip

valu

e on

this

whe

el. T

his

cond

ition

will

res

ult i

n pe

rman

ent s

lip fa

ilure

on

this

whe

el.

Thi

s er

ror

dete

ctio

n is

pos

sibl

e in

thre

e di

ffere

nt

way

s:S

ourc

e 1:

Bas

ed o

n w

heel

slip

sig

nal (

lam

bda

sign

al)

from

AB

S c

ontr

ol fu

nctio

n.S

ourc

e 2:

Bas

ed o

n w

heel

spe

ed v

alue

s.S

ourc

e 3:

Whe

n se

nsor

sta

tus

is in

valid

due

to

high

freq

uenc

y si

gnal

mea

sure

d by

sen

sor.

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

the

rele

vant

whe

el s

peed

sen

sor

and

its fi

tting

. Is

the

dist

ance

bet

wee

n to

oth

whe

el a

nd s

enso

r (a

ir ga

p)

too

wid

e?•

Che

ck th

e w

heel

spe

ed s

enso

r fo

r co

rrec

t vol

tage

out

put.

(Is

volta

ge o

utpu

t suf

ficie

nt?)

• If

sens

or a

nd a

ir ga

p ar

e co

rrec

t, co

ntac

t the

Mer

itor

OnT

rac™

Cus

tom

er C

all C

ente

r at

866

-OnT

rac1

(66

8-72

21).

4013165a

Page 54: Maintenance Manual MM-1719 Anti-Lock Braking System · PDF fileMaintenance Manual MM-1719 Anti-Lock Braking System (ABS) and Electronic Stability Control (ESC) For Modular Braking

5 SPN FMI Fault Codes

50 Meritor WABCO Maintenance Manual MM-1719 (Issued 06-17)

Figure 5.35D

TC S

PN

FM

IFa

ilure

Det

ectio

n N

ame

Failu

re D

etec

tion

Des

crip

tion

War

ning

and

Sys

tem

R

eact

ion

Rep

air

5205

09 -

9 =

Whe

el S

peed

S

ensi

ng a

nd P

olew

heel

-

Axl

e 5

Left

- ab

norm

al

upda

te ra

te

Whe

el S

peed

Jum

p D

own

Det

ectio

n at

A

xle

5 Le

ft

Jum

p do

wn

failu

re is

det

ecte

d w

hen

whe

el s

peed

dr

ops

sudd

enly

to s

tand

still

from

hig

her

spee

ds.

The

failu

re c

an h

appe

n be

caus

e of

larg

er a

ir ga

p be

twee

n to

oth

whe

el a

nd s

enso

r or

due

to s

enso

r ge

tting

mis

alig

ned

whi

le d

rivin

g.

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

the

rele

vant

whe

el s

peed

sen

sor

and

its fi

tting

. Is

the

dist

ance

bet

wee

n to

oth

whe

el a

nd s

enso

r (a

ir ga

p) to

o w

ide

or is

the

sens

or fi

tting

loos

e?•

If se

nsor

and

fitti

ng a

re c

orre

ct, c

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at 8

66-O

nTra

c1 (

668-

7221

).

5205

09 -

10

= W

heel

Spe

ed

Sen

sing

and

Pol

ewhe

el -

A

xle

5 Le

ft -

abno

rmal

rate

of

cha

nge

Whe

el S

peed

Jum

p U

p D

etec

tion

at A

xle

5 Le

ft

Larg

er a

ir ga

p be

twee

n se

nsor

and

toot

h w

heel

will

le

ad to

jum

p up

failu

re.

Jum

p up

failu

re w

ill b

e de

tect

ed w

hen

whe

els

star

t ro

tatin

g fr

om s

tand

still

.

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

the

rele

vant

whe

el s

peed

sen

sor

and

its fi

tting

. (Is

th

e se

nsor

fitti

ng lo

ose?

)•

If se

nsor

and

fitti

ng a

re c

orre

ct, c

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at 8

66-O

nTra

c1 (

668-

7221

).

5205

09 -

13

= W

heel

Spe

ed

Sen

sing

and

Pol

ewhe

el

- A

xle

5 Le

ft -

out o

f ca

libra

tion

Impe

rmis

sabl

e T

ire

Siz

e D

etec

ted

at A

xle

5 Le

ft

Whe

n de

viat

ion

of ti

re s

ize

is g

reat

er th

an th

e al

low

able

lim

it, th

e im

perm

issi

ble

tire

size

err

or

shal

l be

set f

or th

e co

ncer

ned

whe

el. T

he s

oftw

are

shal

l rep

ort ‘

impe

rmis

sibl

e tir

e si

ze e

rror

’ for

a

whe

el if

the

min

imum

of a

ll un

corr

ecte

d w

heel

sp

eeds

in th

e ve

hicl

e is

gre

ater

than

20

km/h

. W

hen

the

prec

ondi

tions

are

sat

isfie

d w

ith a

ny o

f th

e fo

llow

ing

cond

ition

s, th

en th

e im

perm

issi

ble

tire

size

err

or s

hall

be s

et fo

r th

e co

ncer

ned

whe

el:

- The

diff

eren

ce in

cor

rect

ion

valu

es b

etw

een

the

left

and

right

whe

els

of a

n ax

le e

xcee

ds 1

0%.

- C

orre

ctio

n va

lue

of th

e w

heel

is m

ore

than

14%

.- W

heel

spe

ed d

evia

tion

betw

een

the

left

and

right

w

heel

s of

an

axle

exc

eeds

10%

.- W

heel

spe

ed d

evia

tion

of th

e w

heel

com

pare

d to

the

aver

age

fron

t axl

e w

heel

spe

ed is

gre

ater

th

an 1

4%.

Yello

w D

river

War

ning

, A

BS

par

tly o

r co

mpl

etel

y sw

itche

d of

f

• C

heck

all

tires

of t

he v

ehic

le c

once

rnin

g co

rrec

t siz

e.•

Che

ck th

e E

OL

para

met

ers

(tire

circ

umfe

renc

e, to

oth

whe

el te

eth

num

bers

).

5205

09 -

14

= W

heel

Spe

ed

Sen

sing

and

Pol

ewhe

el

- A

xle

5 Le

ft -

spec

ial

inst

ruct

ions

Impe

rmis

sabl

e D

evia

tion

of T

ire S

ize

Det

ecte

d at

Axl

e 5

Left

Whe

n w

heel

spe

ed d

evia

tes

from

the

fast

est

whe

el b

y m

ore

than

the

allo

wab

le li

mit,

the

impe

rmis

sibl

e de

viat

ion

erro

r sh

all b

e re

port

ed fo

r th

e co

ncer

ned

whe

el.

The

sof

twar

e sh

all m

onito

r th

e w

heel

spe

eds

only

w

hen

the

min

imum

whe

el s

peed

is 2

0 km

/h o

r hi

gher

.T

he s

oftw

are

shal

l rep

ort ‘

impe

rmis

sibl

e de

viat

ion’

er

ror

for

a w

heel

if th

e co

mpe

nsat

ed s

peed

of

conc

erne

d w

heel

dev

iate

s fr

om th

e m

axim

um

com

pens

ated

whe

el s

peed

by

mor

e th

an 1

0%.

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

all

tires

of t

he v

ehic

le c

once

rnin

g co

rrec

t siz

e.•

Che

ck th

e E

OL

para

met

ers

(tire

circ

umfe

renc

e, to

oth

whe

el te

eth

num

bers

).

5205

10 -

2 =

Whe

el S

peed

S

ensi

ng a

nd P

olew

heel

-

Axl

e 5

Rig

ht -

dat

a er

ratic

, in

term

itten

t or

inco

rrec

t

Whe

el S

peed

C

hatte

ring

Failu

re a

t A

xle

5 R

ight

Und

esira

ble

jum

ps in

whe

el s

peed

is r

ecog

nize

d as

cha

tterin

g. W

hen

this

beh

avio

r of

cha

tterin

g is

act

ive

for

cert

ain

time

perio

d, th

e w

heel

spe

ed

chat

terin

g fa

ult w

ill b

e re

cogn

ized

.D

etec

tion

is o

nly

activ

e if

vehi

cle

refe

renc

e sp

eed

is m

ore

than

15

km/h

.

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

the

fittin

g an

d m

ount

ing

of th

e re

leva

nt w

heel

sp

eed

sens

or. (

Can

vib

ratio

ns c

ause

cha

tterin

g?)

• C

heck

the

rele

vant

foun

datio

n br

ake

for

inad

mis

sibl

e vi

brat

ions

(re

turn

spr

ing

defe

ct?

brak

e lin

ings

loos

ened

?).

4013166a

Page 55: Maintenance Manual MM-1719 Anti-Lock Braking System · PDF fileMaintenance Manual MM-1719 Anti-Lock Braking System (ABS) and Electronic Stability Control (ESC) For Modular Braking

5 SPN FMI Fault Codes

51Meritor WABCO Maintenance Manual MM-1719 (Issued 06-17)

Figure 5.36

DTC

SP

N F

MI

Failu

re D

etec

tion

Nam

eFa

ilure

Det

ectio

n D

escr

iptio

nW

arni

ng a

nd S

yste

m

Rea

ctio

nR

epai

r

5205

10 -

7 =

Whe

el S

peed

S

ensi

ng a

nd P

olew

heel

-

Axl

e 5

Rig

ht -

mec

hani

cal

syst

em n

ot r

espo

ndin

g pr

oper

ly o

r ou

t of

adju

stm

ent

Whe

el S

peed

P

erm

anen

t Slip

Fa

ilure

at A

xle

5 R

ight

Whe

n a

sens

or is

left

unco

nnec

ted

from

toot

h w

heel

ass

embl

y, n

o w

heel

spe

eds

are

mea

sure

d in

this

par

ticul

ar w

heel

res

ultin

g in

larg

er s

lip

valu

e on

this

whe

el. T

his

cond

ition

will

res

ult i

n pe

rman

ent s

lip fa

ilure

on

this

whe

el.

Thi

s er

ror

dete

ctio

n is

pos

sibl

e in

thre

e di

ffere

nt

way

s:S

ourc

e 1:

Bas

ed o

n w

heel

slip

sig

nal (

lam

bda

sign

al)

from

AB

S c

ontr

ol fu

nctio

n.S

ourc

e 2:

Bas

ed o

n w

heel

spe

ed v

alue

s.S

ourc

e 3:

Whe

n se

nsor

sta

tus

is in

valid

due

to

high

freq

uenc

y si

gnal

mea

sure

d by

sen

sor.

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

the

rele

vant

whe

el s

peed

sen

sor

and

its fi

tting

. Is

the

dist

ance

bet

wee

n to

oth

whe

el a

nd s

enso

r (a

ir ga

p)

too

wid

e?•

Che

ck th

e w

heel

spe

ed s

enso

r fo

r co

rrec

t vol

tage

out

put.

(Is

volta

ge o

utpu

t suf

ficie

nt?)

• If

sens

or a

nd a

ir ga

p ar

e co

rrec

t, co

ntac

t the

Mer

itor

OnT

rac™

Cus

tom

er C

all C

ente

r at

866

-OnT

rac1

(66

8-72

21).

5205

10 -

9 =

Whe

el S

peed

S

ensi

ng a

nd P

olew

heel

-

Axl

e 5

Rig

ht -

abn

orm

al

upda

te ra

te

Whe

el S

peed

Jum

p D

own

Det

ectio

n at

A

xle

5 R

ight

Jum

p do

wn

failu

re is

det

ecte

d w

hen

whe

el s

peed

dr

ops

sudd

enly

to s

tand

still

from

hig

her

spee

ds.

The

failu

re c

an h

appe

n be

caus

e of

larg

er a

ir ga

p be

twee

n to

oth

whe

el a

nd s

enso

r or

due

to s

enso

r ge

tting

mis

alig

ned

whi

le d

rivin

g.

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

the

rele

vant

whe

el s

peed

sen

sor

and

its fi

tting

. Is

the

dist

ance

bet

wee

n to

oth

whe

el a

nd s

enso

r (a

ir ga

p) to

o w

ide

or is

the

sens

or fi

tting

loos

e?•

If se

nsor

and

fitti

ng a

re c

orre

ct, c

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at 8

66-O

nTra

c1 (

668-

7221

).

5205

10 -

10

= W

heel

Spe

ed

Sen

sing

and

Pol

ewhe

el -

A

xle

5 R

ight

- a

bnor

mal

rate

of

cha

nge

Whe

el S

peed

Jum

p U

p D

etec

tion

at A

xle

5 R

ight

Larg

er a

ir ga

p be

twee

n se

nsor

and

toot

h w

heel

will

le

ad to

jum

p up

failu

re.

Jum

p up

failu

re w

ill b

e de

tect

ed w

hen

whe

els

star

t ro

tatin

g fr

om s

tand

still

.

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

the

rele

vant

whe

el s

peed

sen

sor

and

its fi

tting

. (Is

th

e se

nsor

fitti

ng lo

ose?

)•

If se

nsor

and

fitti

ng a

re c

orre

ct, c

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at 8

66-O

nTra

c1 (

668-

7221

).

5205

10 -

13

= W

heel

Spe

ed

Sen

sing

and

Pol

ewhe

el

- A

xle

5 R

ight

- o

ut o

f ca

libra

tion

Impe

rmis

sabl

e T

ire

Siz

e D

etec

ted

at A

xle

5 R

ight

Whe

n de

viat

ion

of ti

re s

ize

is g

reat

er th

an th

e al

low

able

lim

it, th

e im

perm

issi

ble

tire

size

err

or

shal

l be

set f

or th

e co

ncer

ned

whe

el. T

he s

oftw

are

shal

l rep

ort ‘

impe

rmis

sibl

e tir

e si

ze e

rror

’ for

a

whe

el if

the

min

imum

of a

ll un

corr

ecte

d w

heel

sp

eeds

in th

e ve

hicl

e is

gre

ater

than

20

km/h

. W

hen

the

prec

ondi

tions

are

sat

isfie

d w

ith a

ny o

f th

e fo

llow

ing

cond

ition

s, th

en th

e im

perm

issi

ble

tire

size

err

or s

hall

be s

et fo

r th

e co

ncer

ned

whe

el:

- The

diff

eren

ce in

cor

rect

ion

valu

es b

etw

een

the

left

and

right

whe

els

of a

n ax

le e

xcee

ds 1

0%.

- C

orre

ctio

n va

lue

of th

e w

heel

is m

ore

than

14%

.- W

heel

spe

ed d

evia

tion

betw

een

the

left

and

right

w

heel

s of

an

axle

exc

eeds

10%

.- W

heel

spe

ed d

evia

tion

of th

e w

heel

com

pare

d to

the

aver

age

fron

t axl

e w

heel

spe

ed is

gre

ater

th

an 1

4%.

Yello

w D

river

War

ning

, A

BS

par

tly o

r co

mpl

etel

y sw

itche

d of

f

• C

heck

all

tires

of t

he v

ehic

le c

once

rnin

g co

rrec

t siz

e.•

Che

ck th

e E

OL

para

met

ers

(tire

circ

umfe

renc

e, to

oth

whe

el te

eth

num

bers

).

5205

10 -

14

= W

heel

Spe

ed

Sen

sing

and

Pol

ewhe

el

- A

xle

5 R

ight

- s

peci

al

inst

ruct

ions

Impe

rmis

sabl

e D

evia

tion

of T

ire S

ize

Det

ecte

d at

Axl

e 5

Rig

ht

Whe

n w

heel

spe

ed d

evia

tes

from

the

fast

est

whe

el b

y m

ore

than

the

allo

wab

le li

mit,

the

impe

rmis

sibl

e de

viat

ion

erro

r sh

all b

e re

port

ed fo

r th

e co

ncer

ned

whe

el.

The

sof

twar

e sh

all m

onito

r th

e w

heel

spe

eds

only

w

hen

the

min

imum

whe

el s

peed

is 2

0 km

/h o

r hi

gher

.T

he s

oftw

are

shal

l rep

ort ‘

impe

rmis

sibl

e de

viat

ion’

er

ror

for

a w

heel

if th

e co

mpe

nsat

ed s

peed

of

conc

erne

d w

heel

dev

iate

s fr

om th

e m

axim

um

com

pens

ated

whe

el s

peed

by

mor

e th

an 1

0%.

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

all

tires

of t

he v

ehic

le c

once

rnin

g co

rrec

t siz

e.•

Che

ck th

e E

OL

para

met

ers

(tire

circ

umfe

renc

e, to

oth

whe

el te

eth

num

bers

).

4013167a

Page 56: Maintenance Manual MM-1719 Anti-Lock Braking System · PDF fileMaintenance Manual MM-1719 Anti-Lock Braking System (ABS) and Electronic Stability Control (ESC) For Modular Braking

5 SPN FMI Fault Codes

52 Meritor WABCO Maintenance Manual MM-1719 (Issued 06-17)

Figure 5.37

DTC

SP

N F

MI

Failu

re D

etec

tion

Nam

eFa

ilure

Det

ectio

n D

escr

iptio

nW

arni

ng a

nd S

yste

m

Rea

ctio

nR

epai

r

5205

11 -

2 =

Whe

el S

peed

S

ensi

ng a

nd P

olew

heel

-

Axl

e 6

Left

- da

ta e

rrat

ic,

inte

rmitt

ent o

r in

corr

ect

Whe

el S

peed

C

hatte

ring

Failu

re a

t A

xle

6 Le

ft

Und

esira

ble

jum

ps in

whe

el s

peed

is r

ecog

nize

d as

cha

tterin

g. W

hen

this

beh

avio

r of

cha

tterin

g is

act

ive

for

cert

ain

time

perio

d, th

e w

heel

spe

ed

chat

terin

g fa

ult w

ill b

e re

cogn

ized

.D

etec

tion

is o

nly

activ

e if

vehi

cle

refe

renc

e sp

eed

is m

ore

than

15

km/h

.

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

the

fittin

g an

d m

ount

ing

of th

e re

leva

nt w

heel

sp

eed

sens

or. (

Can

vib

ratio

ns c

ause

cha

tterin

g?)

• C

heck

the

rele

vant

foun

datio

n br

ake

for

inad

mis

sibl

e vi

brat

ions

(re

turn

spr

ing

defe

ct?

brak

e lin

ings

loos

ened

?).

5205

11 -

7 =

Whe

el S

peed

S

ensi

ng a

nd P

olew

heel

-

Axl

e 6

Left

- m

echa

nica

l sy

stem

not

res

pond

ing

prop

erly

or

out o

f ad

just

men

t

Whe

el S

peed

P

erm

anen

t Slip

Fa

ilure

at A

xle

6 Le

ft

Whe

n a

sens

or is

left

unco

nnec

ted

from

toot

h w

heel

ass

embl

y, n

o w

heel

spe

eds

are

mea

sure

d in

this

par

ticul

ar w

heel

res

ultin

g in

larg

er s

lip

valu

e on

this

whe

el. T

his

cond

ition

will

res

ult i

n pe

rman

ent s

lip fa

ilure

on

this

whe

el.

Thi

s er

ror

dete

ctio

n is

pos

sibl

e in

thre

e di

ffere

nt

way

s:S

ourc

e 1:

Bas

ed o

n w

heel

slip

sig

nal (

lam

bda

sign

al)

from

AB

S c

ontr

ol fu

nctio

n.S

ourc

e 2:

Bas

ed o

n w

heel

spe

ed v

alue

s.S

ourc

e 3:

Whe

n se

nsor

sta

tus

is in

valid

due

to

high

freq

uenc

y si

gnal

mea

sure

d by

sen

sor.

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

the

rele

vant

whe

el s

peed

sen

sor

and

its fi

tting

. Is

the

dist

ance

bet

wee

n to

oth

whe

el a

nd s

enso

r (a

ir ga

p)

too

wid

e?•

Che

ck th

e w

heel

spe

ed s

enso

r fo

r co

rrec

t vol

tage

out

put.

(Is

volta

ge o

utpu

t suf

ficie

nt?)

• If

sens

or a

nd a

ir ga

p ar

e co

rrec

t, co

ntac

t the

Mer

itor

OnT

rac™

Cus

tom

er C

all C

ente

r at

866

-OnT

rac1

(66

8-72

21).

5205

11 -

9 =

Whe

el S

peed

S

ensi

ng a

nd P

olew

heel

-

Axl

e 6

Left

- ab

norm

al

upda

te ra

te

Whe

el S

peed

Jum

p D

own

Det

ectio

n at

A

xle

6 Le

ft

Jum

p do

wn

failu

re is

det

ecte

d w

hen

whe

el s

peed

dr

ops

sudd

enly

to s

tand

still

from

hig

her

spee

ds.

The

failu

re c

an h

appe

n be

caus

e of

larg

er a

ir ga

p be

twee

n to

oth

whe

el a

nd s

enso

r or

due

to s

enso

r ge

tting

mis

alig

ned

whi

le d

rivin

g.

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

the

rele

vant

whe

el s

peed

sen

sor

and

its fi

tting

. Is

the

dist

ance

bet

wee

n to

oth

whe

el a

nd s

enso

r (a

ir ga

p) to

o w

ide

or is

the

sens

or fi

tting

loos

e?•

If se

nsor

and

fitti

ng a

re c

orre

ct, c

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at 8

66-O

nTra

c1 (

668-

7221

).

5205

11 -

10

= W

heel

Spe

ed

Sen

sing

and

Pol

ewhe

el -

A

xle

6 Le

ft -

abno

rmal

rate

of

cha

nge

Whe

el S

peed

Jum

p U

p D

etec

tion

at A

xle

6 Le

ft

Larg

er a

ir ga

p be

twee

n se

nsor

and

toot

h w

heel

will

le

ad to

jum

p up

failu

re.

Jum

p up

failu

re w

ill b

e de

tect

ed w

hen

whe

els

star

t ro

tatin

g fr

om s

tand

still

.

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

the

rele

vant

whe

el s

peed

sen

sor

and

its fi

tting

. (Is

th

e se

nsor

fitti

ng lo

ose?

)•

If se

nsor

and

fitti

ng a

re c

orre

ct, c

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at 8

66-O

nTra

c1 (

668-

7221

).

5205

11 -

13

= W

heel

Spe

ed

Sen

sing

and

Pol

ewhe

el

- A

xle

6 Le

ft -

out o

f ca

libra

tion

Impe

rmis

sabl

e T

ire

Siz

e D

etec

ted

at A

xle

6 Le

ft

Whe

n de

viat

ion

of ti

re s

ize

is g

reat

er th

an th

e al

low

able

lim

it, th

e im

perm

issi

ble

tire

size

err

or

shal

l be

set f

or th

e co

ncer

ned

whe

el. T

he s

oftw

are

shal

l rep

ort ‘

impe

rmis

sibl

e tir

e si

ze e

rror

’ for

a

whe

el if

the

min

imum

of a

ll un

corr

ecte

d w

heel

sp

eeds

in th

e ve

hicl

e is

gre

ater

than

20

km/h

. W

hen

the

prec

ondi

tions

are

sat

isfie

d w

ith a

ny o

f th

e fo

llow

ing

cond

ition

s, th

en th

e im

perm

issi

ble

tire

size

err

or s

hall

be s

et fo

r th

e co

ncer

ned

whe

el:

- The

diff

eren

ce in

cor

rect

ion

valu

es b

etw

een

the

left

and

right

whe

els

of a

n ax

le e

xcee

ds 1

0%.

- C

orre

ctio

n va

lue

of th

e w

heel

is m

ore

than

14%

.- W

heel

spe

ed d

evia

tion

betw

een

the

left

and

right

w

heel

s of

an

axle

exc

eeds

10%

.- W

heel

spe

ed d

evia

tion

of th

e w

heel

com

pare

d to

the

aver

age

fron

t axl

e w

heel

spe

ed is

gre

ater

th

an 1

4%.

Yello

w D

river

War

ning

, A

BS

par

tly o

r co

mpl

etel

y sw

itche

d of

f

• C

heck

all

tires

of t

he v

ehic

le c

once

rnin

g co

rrec

t siz

e.•

Che

ck th

e E

OL

para

met

ers

(tire

circ

umfe

renc

e, to

oth

whe

el te

eth

num

bers

).

4013168a

Page 57: Maintenance Manual MM-1719 Anti-Lock Braking System · PDF fileMaintenance Manual MM-1719 Anti-Lock Braking System (ABS) and Electronic Stability Control (ESC) For Modular Braking

5 SPN FMI Fault Codes

53Meritor WABCO Maintenance Manual MM-1719 (Issued 06-17)

Figure 5.38

DTC

SP

N F

MI

Failu

re D

etec

tion

Nam

eFa

ilure

Det

ectio

n D

escr

iptio

nW

arni

ng a

nd S

yste

m

Rea

ctio

nR

epai

r

5205

11 -

14

= W

heel

Spe

ed

Sen

sing

and

Pol

ewhe

el

- A

xle

6 Le

ft -

spec

ial

inst

ruct

ions

Impe

rmis

sabl

e D

evia

tion

of T

ire S

ize

Det

ecte

d at

Axl

e 6

Left

Whe

n w

heel

spe

ed d

evia

tes

from

the

fast

est

whe

el b

y m

ore

than

the

allo

wab

le li

mit,

the

impe

rmis

sibl

e de

viat

ion

erro

r sh

all b

e re

port

ed fo

r th

e co

ncer

ned

whe

el.

The

sof

twar

e sh

all m

onito

r th

e w

heel

spe

eds

only

w

hen

the

min

imum

whe

el s

peed

is 2

0 km

/h o

r hi

gher

.T

he s

oftw

are

shal

l rep

ort ‘

impe

rmis

sibl

e de

viat

ion’

er

ror

for

a w

heel

if th

e co

mpe

nsat

ed s

peed

of

conc

erne

d w

heel

dev

iate

s fr

om th

e m

axim

um

com

pens

ated

whe

el s

peed

by

mor

e th

an 1

0%.

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

all

tires

of t

he v

ehic

le c

once

rnin

g co

rrec

t siz

e.•

Che

ck th

e E

OL

para

met

ers

(tire

circ

umfe

renc

e, to

oth

whe

el te

eth

num

bers

).

5205

12 -

2 =

Whe

el S

peed

S

ensi

ng a

nd P

olew

heel

-

Axl

e 6

Rig

ht -

dat

a er

ratic

, in

term

itten

t or

inco

rrec

t

Whe

el S

peed

C

hatte

ring

Failu

re a

t A

xle

6 R

ight

Und

esira

ble

jum

ps in

whe

el s

peed

is r

ecog

nize

d as

cha

tterin

g. W

hen

this

beh

avio

r of

cha

tterin

g is

act

ive

for

cert

ain

time

perio

d, th

e w

heel

spe

ed

chat

terin

g fa

ult w

ill b

e re

cogn

ized

.D

etec

tion

is o

nly

activ

e if

vehi

cle

refe

renc

e sp

eed

is m

ore

than

15

km/h

.

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

the

fittin

g an

d m

ount

ing

of th

e re

leva

nt w

heel

sp

eed

sens

or. (

Can

vib

ratio

ns c

ause

cha

tterin

g?)

• C

heck

the

rele

vant

foun

datio

n br

ake

for

inad

mis

sibl

e vi

brat

ions

(re

turn

spr

ing

defe

ct?

brak

e lin

ings

loos

ened

?).

5205

12 -

7 =

Whe

el S

peed

S

ensi

ng a

nd P

olew

heel

-

Axl

e 6

Rig

ht -

mec

hani

cal

syst

em n

ot r

espo

ndin

g pr

oper

ly o

r ou

t of

adju

stm

ent

Whe

el S

peed

P

erm

anen

t Slip

Fa

ilure

at A

xle

6 R

ight

Whe

n a

sens

or is

left

unco

nnec

ted

from

toot

h w

heel

ass

embl

y, n

o w

heel

spe

eds

are

mea

sure

d in

this

par

ticul

ar w

heel

res

ultin

g in

larg

er s

lip

valu

e on

this

whe

el. T

his

cond

ition

will

res

ult i

n pe

rman

ent s

lip fa

ilure

on

this

whe

el.

Thi

s er

ror

dete

ctio

n is

pos

sibl

e in

thre

e di

ffere

nt

way

s:S

ourc

e 1:

Bas

ed o

n w

heel

slip

sig

nal (

lam

bda

sign

al)

from

AB

S c

ontr

ol fu

nctio

n.S

ourc

e 2:

Bas

ed o

n w

heel

spe

ed v

alue

s.S

ourc

e 3:

Whe

n se

nsor

sta

tus

is in

valid

due

to

high

freq

uenc

y si

gnal

mea

sure

d by

sen

sor.

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

the

rele

vant

whe

el s

peed

sen

sor

and

its fi

tting

. Is

the

dist

ance

bet

wee

n to

oth

whe

el a

nd s

enso

r (a

ir ga

p)

too

wid

e?•

Che

ck th

e w

heel

spe

ed s

enso

r fo

r co

rrec

t vol

tage

out

put.

(Is

volta

ge o

utpu

t suf

ficie

nt?)

• If

sens

or a

nd a

ir ga

p ar

e co

rrec

t, co

ntac

t the

Mer

itor

OnT

rac™

Cus

tom

er C

all C

ente

r at

866

-OnT

rac1

(66

8-72

21).

5205

12 -

9 =

Whe

el S

peed

S

ensi

ng a

nd P

olew

heel

-

Axl

e 6

Rig

ht -

abn

orm

al

upda

te ra

te

Whe

el S

peed

Jum

p D

own

Det

ectio

n at

A

xle

6 R

ight

Jum

p do

wn

failu

re is

det

ecte

d w

hen

whe

el s

peed

dr

ops

sudd

enly

to s

tand

still

from

hig

her

spee

ds.

The

failu

re c

an h

appe

n be

caus

e of

larg

er a

ir ga

p be

twee

n to

oth

whe

el a

nd s

enso

r or

due

to s

enso

r ge

tting

mis

alig

ned

whi

le d

rivin

g.

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

the

rele

vant

whe

el s

peed

sen

sor

and

its fi

tting

. Is

the

dist

ance

bet

wee

n to

oth

whe

el a

nd s

enso

r (a

ir ga

p) to

o w

ide

or is

the

sens

or fi

tting

loos

e?•

If se

nsor

and

fitti

ng a

re c

orre

ct, c

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at 8

66-O

nTra

c1 (

668-

7221

).

5205

12 -

10

= W

heel

Spe

ed

Sen

sing

and

Pol

ewhe

el -

A

xle

6 R

ight

- a

bnor

mal

rate

of

cha

nge

Whe

el S

peed

Jum

p U

p D

etec

tion

at A

xle

6 R

ight

Larg

er a

ir ga

p be

twee

n se

nsor

and

toot

h w

heel

will

le

ad to

jum

p up

failu

re.

Jum

p up

failu

re w

ill b

e de

tect

ed w

hen

whe

els

star

t ro

tatin

g fr

om s

tand

still

.

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

the

rele

vant

whe

el s

peed

sen

sor

and

its fi

tting

. (Is

th

e se

nsor

fitti

ng lo

ose?

)•

If se

nsor

and

fitti

ng a

re c

orre

ct, c

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at 8

66-O

nTra

c1 (

668-

7221

).

4013169a

Page 58: Maintenance Manual MM-1719 Anti-Lock Braking System · PDF fileMaintenance Manual MM-1719 Anti-Lock Braking System (ABS) and Electronic Stability Control (ESC) For Modular Braking

5 SPN FMI Fault Codes

54 Meritor WABCO Maintenance Manual MM-1719 (Issued 06-17)

Figure 5.39

DTC

SP

N F

MI

Failu

re D

etec

tion

Nam

eFa

ilure

Det

ectio

n D

escr

iptio

nW

arni

ng a

nd S

yste

m

Rea

ctio

nR

epai

r

5205

12 -

13

= W

heel

Spe

ed

Sen

sing

and

Pol

ewhe

el

- A

xle

6 R

ight

- o

ut o

f ca

libra

tion

Impe

rmis

sabl

e T

ire

Siz

e D

etec

ted

at A

xle

6 R

ight

Whe

n de

viat

ion

of ti

re s

ize

is g

reat

er th

an th

e al

low

able

lim

it, th

e im

perm

issi

ble

tire

size

err

or

shal

l be

set f

or th

e co

ncer

ned

whe

el. T

he s

oftw

are

shal

l rep

ort ‘

impe

rmis

sibl

e tir

e si

ze e

rror

’ for

a

whe

el if

the

min

imum

of a

ll un

corr

ecte

d w

heel

sp

eeds

in th

e ve

hicl

e is

gre

ater

than

20

km/h

. W

hen

the

prec

ondi

tions

are

sat

isfie

d w

ith a

ny o

f th

e fo

llow

ing

cond

ition

s, th

en th

e im

perm

issi

ble

tire

size

err

or s

hall

be s

et fo

r th

e co

ncer

ned

whe

el:

- The

diff

eren

ce in

cor

rect

ion

valu

es b

etw

een

the

left

and

right

whe

els

of a

n ax

le e

xcee

ds 1

0%.

- C

orre

ctio

n va

lue

of th

e w

heel

is m

ore

than

14%

.- W

heel

spe

ed d

evia

tion

betw

een

the

left

and

right

w

heel

s of

an

axle

exc

eeds

10%

.- W

heel

spe

ed d

evia

tion

of th

e w

heel

com

pare

d to

the

aver

age

fron

t axl

e w

heel

spe

ed is

gre

ater

th

an 1

4%.

Yello

w D

river

War

ning

, A

BS

par

tly o

r co

mpl

etel

y sw

itche

d of

f

• C

heck

all

tires

of t

he v

ehic

le c

once

rnin

g co

rrec

t siz

e.•

Che

ck th

e E

OL

para

met

ers

(tire

circ

umfe

renc

e, to

oth

whe

el te

eth

num

bers

).

5205

12 -

14

= W

heel

Spe

ed

Sen

sing

and

Pol

ewhe

el

- A

xle

6 R

ight

- s

peci

al

inst

ruct

ions

Impe

rmis

sabl

e D

evia

tion

of T

ire S

ize

Det

ecte

d at

Axl

e 6

Rig

ht

Whe

n w

heel

spe

ed d

evia

tes

from

the

fast

est

whe

el b

y m

ore

than

the

allo

wab

le li

mit,

the

impe

rmis

sibl

e de

viat

ion

erro

r sh

all b

e re

port

ed fo

r th

e co

ncer

ned

whe

el.

The

sof

twar

e sh

all m

onito

r th

e w

heel

spe

eds

only

w

hen

the

min

imum

whe

el s

peed

is 2

0 km

/h o

r hi

gher

.T

he s

oftw

are

shal

l rep

ort ‘

impe

rmis

sibl

e de

viat

ion’

er

ror

for

a w

heel

if th

e co

mpe

nsat

ed s

peed

of

conc

erne

d w

heel

dev

iate

s fr

om th

e m

axim

um

com

pens

ated

whe

el s

peed

by

mor

e th

an 1

0%.

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

all

tires

of t

he v

ehic

le c

once

rnin

g co

rrec

t siz

e.•

Che

ck th

e E

OL

para

met

ers

(tire

circ

umfe

renc

e, to

oth

whe

el te

eth

num

bers

).

5205

13 -

2 =

Whe

el S

peed

S

ensi

ng a

nd P

olew

heel

-

Axl

e 7

Left

- da

ta e

rrat

ic,

inte

rmitt

ent o

r in

corr

ect

Whe

el S

peed

C

hatte

ring

Failu

re a

t A

xle

7 Le

ft

Und

esira

ble

jum

ps in

whe

el s

peed

is r

ecog

nize

d as

cha

tterin

g. W

hen

this

beh

avio

r of

cha

tterin

g is

act

ive

for

cert

ain

time

perio

d, th

e w

heel

spe

ed

chat

terin

g fa

ult w

ill b

e re

cogn

ized

.D

etec

tion

is o

nly

activ

e if

vehi

cle

refe

renc

e sp

eed

is m

ore

than

15

km/h

.

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

the

fittin

g an

d m

ount

ing

of th

e re

leva

nt w

heel

sp

eed

sens

or. (

Can

vib

ratio

ns c

ause

cha

tterin

g?)

• C

heck

the

rele

vant

foun

datio

n br

ake

for

inad

mis

sibl

e vi

brat

ions

(re

turn

spr

ing

defe

ct?

brak

e lin

ings

loos

ened

?).

5205

13 -

7 =

Whe

el S

peed

S

ensi

ng a

nd P

olew

heel

-

Axl

e 7

Left

- m

echa

nica

l sy

stem

not

res

pond

ing

prop

erly

or

out o

f ad

just

men

t

Whe

el S

peed

P

erm

anen

t Slip

Fa

ilure

at A

xle

7 Le

ft

Whe

n a

sens

or is

left

unco

nnec

ted

from

toot

h w

heel

ass

embl

y, n

o w

heel

spe

eds

are

mea

sure

d in

this

par

ticul

ar w

heel

res

ultin

g in

larg

er s

lip

valu

e on

this

whe

el. T

his

cond

ition

will

res

ult i

n pe

rman

ent s

lip fa

ilure

on

this

whe

el.

Thi

s er

ror

dete

ctio

n is

pos

sibl

e in

thre

e di

ffere

nt

way

s:S

ourc

e 1:

Bas

ed o

n w

heel

slip

sig

nal (

lam

bda

sign

al)

from

AB

S c

ontr

ol fu

nctio

n.S

ourc

e 2:

Bas

ed o

n w

heel

spe

ed v

alue

s.S

ourc

e 3:

Whe

n se

nsor

sta

tus

is in

valid

due

to

high

freq

uenc

y si

gnal

mea

sure

d by

sen

sor.

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

the

rele

vant

whe

el s

peed

sen

sor

and

its fi

tting

. Is

the

dist

ance

bet

wee

n to

oth

whe

el a

nd s

enso

r (a

ir ga

p)

too

wid

e?•

Che

ck th

e w

heel

spe

ed s

enso

r fo

r co

rrec

t vol

tage

out

put.

(Is

volta

ge o

utpu

t suf

ficie

nt?)

• If

sens

or a

nd a

ir ga

p ar

e co

rrec

t, co

ntac

t the

Mer

itor

OnT

rac™

Cus

tom

er C

all C

ente

r at

866

-OnT

rac1

(66

8-72

21).

5205

13 -

9 =

Whe

el S

peed

S

ensi

ng a

nd P

olew

heel

-

Axl

e 7

Left

- ab

norm

al

upda

te ra

te

Whe

el S

peed

Jum

p D

own

Det

ectio

n at

A

xle

7 Le

ft

Jum

p do

wn

failu

re is

det

ecte

d w

hen

whe

el s

peed

dr

ops

sudd

enly

to s

tand

still

from

hig

her

spee

ds.

The

failu

re c

an h

appe

n be

caus

e of

larg

er a

ir ga

p be

twee

n to

oth

whe

el a

nd s

enso

r or

due

to s

enso

r ge

tting

mis

alig

ned

whi

le d

rivin

g.

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

the

rele

vant

whe

el s

peed

sen

sor

and

its fi

tting

. Is

the

dist

ance

bet

wee

n to

oth

whe

el a

nd s

enso

r (a

ir ga

p) to

o w

ide

or is

the

sens

or fi

tting

loos

e?•

If se

nsor

and

fitti

ng a

re c

orre

ct, c

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at 8

66-O

nTra

c1 (

668-

7221

).

4013170a

Page 59: Maintenance Manual MM-1719 Anti-Lock Braking System · PDF fileMaintenance Manual MM-1719 Anti-Lock Braking System (ABS) and Electronic Stability Control (ESC) For Modular Braking

5 SPN FMI Fault Codes

55Meritor WABCO Maintenance Manual MM-1719 (Issued 06-17)

Figure 5.40

DTC

SP

N F

MI

Failu

re D

etec

tion

Nam

eFa

ilure

Det

ectio

n D

escr

iptio

nW

arni

ng a

nd S

yste

m

Rea

ctio

nR

epai

r

5205

13 -

10

= W

heel

Spe

ed

Sen

sing

and

Pol

ewhe

el -

A

xle

7 Le

ft -

abno

rmal

rate

of

cha

nge

Whe

el S

peed

Jum

p U

p D

etec

tion

at A

xle

7 Le

ft

Larg

er a

ir ga

p be

twee

n se

nsor

and

toot

h w

heel

will

le

ad to

jum

p up

failu

re.

Jum

p up

failu

re w

ill b

e de

tect

ed w

hen

whe

els

star

t ro

tatin

g fr

om s

tand

still

.

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

the

rele

vant

whe

el s

peed

sen

sor

and

its fi

tting

. (Is

th

e se

nsor

fitti

ng lo

ose?

)•

If se

nsor

and

fitti

ng a

re c

orre

ct, c

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at 8

66-O

nTra

c1 (

668-

7221

).

5205

13 -

13

= W

heel

Spe

ed

Sen

sing

and

Pol

ewhe

el

- A

xle

7 Le

ft -

out o

f ca

libra

tion

Impe

rmis

sabl

e T

ire

Siz

e D

etec

ted

at A

xle

7 Le

ft

Whe

n de

viat

ion

of ti

re s

ize

is g

reat

er th

an th

e al

low

able

lim

it, th

e im

perm

issi

ble

tire

size

err

or

shal

l be

set f

or th

e co

ncer

ned

whe

el. T

he s

oftw

are

shal

l rep

ort ‘

impe

rmis

sibl

e tir

e si

ze e

rror

’ for

a

whe

el if

the

min

imum

of a

ll un

corr

ecte

d w

heel

sp

eeds

in th

e ve

hicl

e is

gre

ater

than

20

km/h

. W

hen

the

prec

ondi

tions

are

sat

isfie

d w

ith a

ny o

f th

e fo

llow

ing

cond

ition

s, th

en th

e im

perm

issi

ble

tire

size

err

or s

hall

be s

et fo

r th

e co

ncer

ned

whe

el:

- The

diff

eren

ce in

cor

rect

ion

valu

es b

etw

een

the

left

and

right

whe

els

of a

n ax

le e

xcee

ds 1

0%.

- C

orre

ctio

n va

lue

of th

e w

heel

is m

ore

than

14%

.- W

heel

spe

ed d

evia

tion

betw

een

the

left

and

right

w

heel

s of

an

axle

exc

eeds

10%

.- W

heel

spe

ed d

evia

tion

of th

e w

heel

com

pare

d to

the

aver

age

fron

t axl

e w

heel

spe

ed is

gre

ater

th

an 1

4%.

Yello

w D

river

War

ning

, A

BS

par

tly o

r co

mpl

etel

y sw

itche

d of

f

• C

heck

all

tires

of t

he v

ehic

le c

once

rnin

g co

rrec

t siz

e.•

Che

ck th

e E

OL

para

met

ers

(tire

circ

umfe

renc

e, to

oth

whe

el te

eth

num

bers

).

5205

13 -

14

= W

heel

Spe

ed

Sen

sing

and

Pol

ewhe

el

- A

xle

7 Le

ft -

spec

ial

inst

ruct

ions

Impe

rmis

sabl

e D

evia

tion

of T

ire S

ize

Det

ecte

d at

Axl

e 7

Left

Whe

n w

heel

spe

ed d

evia

tes

from

the

fast

est

whe

el b

y m

ore

than

the

allo

wab

le li

mit,

the

impe

rmis

sibl

e de

viat

ion

erro

r sh

all b

e re

port

ed fo

r th

e co

ncer

ned

whe

el.

The

sof

twar

e sh

all m

onito

r th

e w

heel

spe

eds

only

w

hen

the

min

imum

whe

el s

peed

is 2

0 km

/h o

r hi

gher

.T

he s

oftw

are

shal

l rep

ort ‘

impe

rmis

sibl

e de

viat

ion’

er

ror

for

a w

heel

if th

e co

mpe

nsat

ed s

peed

of

conc

erne

d w

heel

dev

iate

s fr

om th

e m

axim

um

com

pens

ated

whe

el s

peed

by

mor

e th

an 1

0%.

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

all

tires

of t

he v

ehic

le c

once

rnin

g co

rrec

t siz

e.•

Che

ck th

e E

OL

para

met

ers

(tire

circ

umfe

renc

e, to

oth

whe

el te

eth

num

bers

).

5205

14 -

2 =

Whe

el S

peed

S

ensi

ng a

nd P

olew

heel

-

Axl

e 7

Rig

ht -

dat

a er

ratic

, in

term

itten

t or

inco

rrec

t

Whe

el S

peed

C

hatte

ring

Failu

re a

t A

xle

7 R

ight

Und

esira

ble

jum

ps in

whe

el s

peed

is r

ecog

nize

d as

cha

tterin

g. W

hen

this

beh

avio

r of

cha

tterin

g is

act

ive

for

cert

ain

time

perio

d, th

e w

heel

spe

ed

chat

terin

g fa

ult w

ill b

e re

cogn

ized

.D

etec

tion

is o

nly

activ

e if

vehi

cle

refe

renc

e sp

eed

is m

ore

than

15

km/h

.

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

the

fittin

g an

d m

ount

ing

of th

e re

leva

nt w

heel

sp

eed

sens

or. (

Can

vib

ratio

ns c

ause

cha

tterin

g?)

• C

heck

the

rele

vant

foun

datio

n br

ake

for

inad

mis

sibl

e vi

brat

ions

(re

turn

spr

ing

defe

ct?

brak

e lin

ings

loos

ened

?).

5205

14 -

7 =

Whe

el S

peed

S

ensi

ng a

nd P

olew

heel

-

Axl

e 7

Rig

ht -

mec

hani

cal

syst

em n

ot r

espo

ndin

g pr

oper

ly o

r ou

t of

adju

stm

ent

Whe

el S

peed

P

erm

anen

t Slip

Fa

ilure

at A

xle

7 R

ight

Whe

n a

sens

or is

left

unco

nnec

ted

from

toot

h w

heel

ass

embl

y, n

o w

heel

spe

eds

are

mea

sure

d in

this

par

ticul

ar w

heel

res

ultin

g in

larg

er s

lip

valu

e on

this

whe

el. T

his

cond

ition

will

res

ult i

n pe

rman

ent s

lip fa

ilure

on

this

whe

el.

Thi

s er

ror

dete

ctio

n is

pos

sibl

e in

thre

e di

ffere

nt

way

s:S

ourc

e 1:

Bas

ed o

n w

heel

slip

sig

nal (

lam

bda

sign

al)

from

AB

S c

ontr

ol fu

nctio

n.S

ourc

e 2:

Bas

ed o

n w

heel

spe

ed v

alue

s.S

ourc

e 3:

Whe

n se

nsor

sta

tus

is in

valid

due

to

high

freq

uenc

y si

gnal

mea

sure

d by

sen

sor.

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

the

rele

vant

whe

el s

peed

sen

sor

and

its fi

tting

. Is

the

dist

ance

bet

wee

n to

oth

whe

el a

nd s

enso

r (a

ir ga

p)

too

wid

e?•

Che

ck th

e w

heel

spe

ed s

enso

r fo

r co

rrec

t vol

tage

out

put.

(Is

volta

ge o

utpu

t suf

ficie

nt?)

• If

sens

or a

nd a

ir ga

p ar

e co

rrec

t, co

ntac

t the

Mer

itor

OnT

rac™

Cus

tom

er C

all C

ente

r at

866

-OnT

rac1

(66

8-72

21).

4013171a

Page 60: Maintenance Manual MM-1719 Anti-Lock Braking System · PDF fileMaintenance Manual MM-1719 Anti-Lock Braking System (ABS) and Electronic Stability Control (ESC) For Modular Braking

5 SPN FMI Fault Codes

56 Meritor WABCO Maintenance Manual MM-1719 (Issued 06-17)

Figure 5.41D

TC S

PN

FM

IFa

ilure

Det

ectio

n N

ame

Failu

re D

etec

tion

Des

crip

tion

War

ning

and

Sys

tem

R

eact

ion

Rep

air

5205

14 -

9 =

Whe

el S

peed

S

ensi

ng a

nd P

olew

heel

-

Axl

e 7

Rig

ht -

abn

orm

al

upda

te ra

te

Whe

el S

peed

Jum

p D

own

Det

ectio

n at

A

xle

7 R

ight

Jum

p do

wn

failu

re is

det

ecte

d w

hen

whe

el s

peed

dr

ops

sudd

enly

to s

tand

still

from

hig

her

spee

ds.

The

failu

re c

an h

appe

n be

caus

e of

larg

er a

ir ga

p be

twee

n to

oth

whe

el a

nd s

enso

r or

due

to s

enso

r ge

tting

mis

alig

ned

whi

le d

rivin

g.

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

the

rele

vant

whe

el s

peed

sen

sor

and

its fi

tting

. Is

the

dist

ance

bet

wee

n to

oth

whe

el a

nd s

enso

r (a

ir ga

p) to

o w

ide

or is

the

sens

or fi

tting

loos

e?•

If se

nsor

and

fitti

ng a

re c

orre

ct, c

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at 8

66-O

nTra

c1 (

668-

7221

).

5205

14 -

10

= W

heel

Spe

ed

Sen

sing

and

Pol

ewhe

el -

A

xle

7 R

ight

- a

bnor

mal

rate

of

cha

nge

Whe

el S

peed

Jum

p U

p D

etec

tion

at A

xle

7 R

ight

Larg

er a

ir ga

p be

twee

n se

nsor

and

toot

h w

heel

will

le

ad to

jum

p up

failu

re.

Jum

p up

failu

re w

ill b

e de

tect

ed w

hen

whe

els

star

t ro

tatin

g fr

om s

tand

still

.

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

the

rele

vant

whe

el s

peed

sen

sor

and

its fi

tting

. (Is

th

e se

nsor

fitti

ng lo

ose?

)•

If se

nsor

and

fitti

ng a

re c

orre

ct, c

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at 8

66-O

nTra

c1 (

668-

7221

).

5205

14 -

13

= W

heel

Spe

ed

Sen

sing

and

Pol

ewhe

el

- A

xle

7 R

ight

- o

ut o

f ca

libra

tion

Impe

rmis

sabl

e T

ire

Siz

e D

etec

ted

at A

xle

7 R

ight

Whe

n de

viat

ion

of ti

re s

ize

is g

reat

er th

an th

e al

low

able

lim

it, th

e im

perm

issi

ble

tire

size

err

or

shal

l be

set f

or th

e co

ncer

ned

whe

el. T

he s

oftw

are

shal

l rep

ort ‘

impe

rmis

sibl

e tir

e si

ze e

rror

’ for

a

whe

el if

the

min

imum

of a

ll un

corr

ecte

d w

heel

sp

eeds

in th

e ve

hicl

e is

gre

ater

than

20

km/h

.W

hen

the

prec

ondi

tions

are

sat

isfie

d w

ith a

ny o

f th

e fo

llow

ing

cond

ition

s, th

en th

e im

perm

issi

ble

tire

size

err

or s

hall

be s

et fo

r th

e co

ncer

ned

whe

el:

- The

diff

eren

ce in

cor

rect

ion

valu

es b

etw

een

the

left

and

right

whe

els

of a

n ax

le e

xcee

ds 1

0%.

- C

orre

ctio

n va

lue

of th

e w

heel

is m

ore

than

14%

.- W

heel

spe

ed d

evia

tion

betw

een

the

left

and

right

w

heel

s of

an

axle

exc

eeds

10%

.- W

heel

spe

ed d

evia

tion

of th

e w

heel

com

pare

d to

the

aver

age

fron

t axl

e w

heel

spe

ed is

gre

ater

th

an 1

4%.

Yello

w D

river

War

ning

, A

BS

par

tly o

r co

mpl

etel

y sw

itche

d of

f

• C

heck

all

tires

of t

he v

ehic

le c

once

rnin

g co

rrec

t siz

e.•

Che

ck th

e E

OL

para

met

ers

(tire

circ

umfe

renc

e, to

oth

whe

el te

eth

num

bers

).

5205

14 -

14

= W

heel

Spe

ed

Sen

sing

and

Pol

ewhe

el

- A

xle

7 R

ight

- s

peci

al

inst

ruct

ions

Impe

rmis

sabl

e D

evia

tion

of T

ire S

ize

Det

ecte

d at

Axl

e 7

Rig

ht

Whe

n w

heel

spe

ed d

evia

tes

from

the

fast

est

whe

el b

y m

ore

than

the

allo

wab

le li

mit,

the

impe

rmis

sibl

e de

viat

ion

erro

r sh

all b

e re

port

ed fo

r th

e co

ncer

ned

whe

el.

The

sof

twar

e sh

all m

onito

r th

e w

heel

spe

eds

only

w

hen

the

min

imum

whe

el s

peed

is 2

0 km

/h o

r hi

gher

.T

he s

oftw

are

shal

l rep

ort ‘

impe

rmis

sibl

e de

viat

ion’

er

ror

for

a w

heel

if th

e co

mpe

nsat

ed s

peed

of

conc

erne

d w

heel

dev

iate

s fr

om th

e m

axim

um

com

pens

ated

whe

el s

peed

by

mor

e th

an 1

0%.

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

all

tires

of t

he v

ehic

le c

once

rnin

g co

rrec

t siz

e.•

Che

ck th

e E

OL

para

met

ers

(tire

circ

umfe

renc

e, to

oth

whe

el te

eth

num

bers

).

5205

15 -

2 =

Whe

el S

peed

S

ensi

ng a

nd P

olew

heel

-

Axl

e 8

Left

- da

ta e

rrat

ic,

inte

rmitt

ent o

r in

corr

ect

Whe

el S

peed

C

hatte

ring

Failu

re a

t A

xle

8 Le

ft

Und

esira

ble

jum

ps in

whe

el s

peed

is r

ecog

nize

d as

cha

tterin

g. W

hen

this

beh

avio

r of

cha

tterin

g is

act

ive

for

cert

ain

time

perio

d, th

e w

heel

spe

ed

chat

terin

g fa

ult w

ill b

e re

cogn

ized

.D

etec

tion

is o

nly

activ

e if

vehi

cle

refe

renc

e sp

eed

is m

ore

than

15

km/h

.

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

the

fittin

g an

d m

ount

ing

of th

e re

leva

nt w

heel

sp

eed

sens

or. (

Can

vib

ratio

ns c

ause

cha

tterin

g?)

• C

heck

the

rele

vant

foun

datio

n br

ake

for

inad

mis

sibl

e vi

brat

ions

(re

turn

spr

ing

defe

ct?

brak

e lin

ings

loos

ened

?).

4013172a

Page 61: Maintenance Manual MM-1719 Anti-Lock Braking System · PDF fileMaintenance Manual MM-1719 Anti-Lock Braking System (ABS) and Electronic Stability Control (ESC) For Modular Braking

5 SPN FMI Fault Codes

57Meritor WABCO Maintenance Manual MM-1719 (Issued 06-17)

Figure 5.42

DTC

SP

N F

MI

Failu

re D

etec

tion

Nam

eFa

ilure

Det

ectio

n D

escr

iptio

nW

arni

ng a

nd S

yste

m

Rea

ctio

nR

epai

r

5205

15 -

7 =

Whe

el S

peed

S

ensi

ng a

nd P

olew

heel

-

Axl

e 8

Left

- m

echa

nica

l sy

stem

not

res

pond

ing

prop

erly

or

out o

f ad

just

men

t

Whe

el S

peed

P

erm

anen

t Slip

Fa

ilure

at A

xle

8 Le

ft

Whe

n a

sens

or is

left

unco

nnec

ted

from

toot

h w

heel

ass

embl

y, n

o w

heel

spe

eds

are

mea

sure

d in

this

par

ticul

ar w

heel

res

ultin

g in

larg

er s

lip

valu

e on

this

whe

el. T

his

cond

ition

will

res

ult i

n pe

rman

ent s

lip fa

ilure

on

this

whe

el.

Thi

s er

ror

dete

ctio

n is

pos

sibl

e in

thre

e di

ffere

nt

way

s:S

ourc

e 1:

Bas

ed o

n w

heel

slip

sig

nal (

lam

bda

sign

al)

from

AB

S c

ontr

ol fu

nctio

n.S

ourc

e 2:

Bas

ed o

n w

heel

spe

ed v

alue

s.S

ourc

e 3:

Whe

n se

nsor

sta

tus

is in

valid

due

to

high

freq

uenc

y si

gnal

mea

sure

d by

sen

sor.

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

the

rele

vant

whe

el s

peed

sen

sor

and

its fi

tting

. Is

the

dist

ance

bet

wee

n to

oth

whe

el a

nd s

enso

r (a

ir ga

p)

too

wid

e?•

Che

ck th

e w

heel

spe

ed s

enso

r fo

r co

rrec

t vol

tage

out

put.

(Is

volta

ge o

utpu

t suf

ficie

nt?)

• If

sens

or a

nd a

ir ga

p ar

e co

rrec

t, co

ntac

t the

Mer

itor

OnT

rac™

Cus

tom

er C

all C

ente

r at

866

-OnT

rac1

(66

8-72

21).

5205

15 -

9 =

Whe

el S

peed

S

ensi

ng a

nd P

olew

heel

-

Axl

e 8

Left

- ab

norm

al

upda

te ra

te

Whe

el S

peed

Jum

p D

own

Det

ectio

n at

A

xle

8 Le

ft

Jum

p do

wn

failu

re is

det

ecte

d w

hen

whe

el s

peed

dr

ops

sudd

enly

to s

tand

still

from

hig

her

spee

ds.

The

failu

re c

an h

appe

n be

caus

e of

larg

er a

ir ga

p be

twee

n to

oth

whe

el a

nd s

enso

r or

due

to s

enso

r ge

tting

mis

alig

ned

whi

le d

rivin

g.

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

the

rele

vant

whe

el s

peed

sen

sor

and

its fi

tting

. Is

the

dist

ance

bet

wee

n to

oth

whe

el a

nd s

enso

r (a

ir ga

p) to

o w

ide

or is

the

sens

or fi

tting

loos

e?•

If se

nsor

and

fitti

ng a

re c

orre

ct, c

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at 8

66-O

nTra

c1 (

668-

7221

).

5205

15 -

10

= W

heel

Spe

ed

Sen

sing

and

Pol

ewhe

el -

A

xle

8 Le

ft -

abno

rmal

rate

of

cha

nge

Whe

el S

peed

Jum

p U

p D

etec

tion

at A

xle

8 Le

ft

Larg

er a

ir ga

p be

twee

n se

nsor

and

toot

h w

heel

will

le

ad to

jum

p up

failu

re.

Jum

p up

failu

re w

ill b

e de

tect

ed w

hen

whe

els

star

t ro

tatin

g fr

om s

tand

still

.

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

the

rele

vant

whe

el s

peed

sen

sor

and

its fi

tting

. Is

the

sens

or fi

tting

loos

e?•

If se

nsor

and

fitti

ng a

re c

orre

ct, c

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at 8

66-O

nTra

c1 (

668-

7221

).

5205

15 -

13

= W

heel

Spe

ed

Sen

sing

and

Pol

ewhe

el

- A

xle

8 Le

ft -

out o

f ca

libra

tion

Impe

rmis

sabl

e T

ire

Siz

e D

etec

ted

at A

xle

8 Le

ft

Whe

n de

viat

ion

of ti

re s

ize

is g

reat

er th

an th

e al

low

able

lim

it, th

e im

perm

issi

ble

tire

size

err

or

shal

l be

set f

or th

e co

ncer

ned

whe

el. T

he s

oftw

are

shal

l rep

ort ‘

impe

rmis

sibl

e tir

e si

ze e

rror

’ for

a

whe

el if

the

min

imum

of a

ll un

corr

ecte

d w

heel

sp

eeds

in th

e ve

hicl

e is

gre

ater

than

20

km/h

. W

hen

the

prec

ondi

tions

are

sat

isfie

d w

ith a

ny o

f th

e fo

llow

ing

cond

ition

s, th

en th

e im

perm

issi

ble

tire

size

err

or s

hall

be s

et fo

r th

e co

ncer

ned

whe

el:

- The

diff

eren

ce in

cor

rect

ion

valu

es b

etw

een

the

left

and

right

whe

els

of a

n ax

le e

xcee

ds 1

0%.

- C

orre

ctio

n va

lue

of th

e w

heel

is m

ore

than

14%

.- W

heel

spe

ed d

evia

tion

betw

een

the

left

and

right

w

heel

s of

an

axle

exc

eeds

10%

.- W

heel

spe

ed d

evia

tion

of th

e w

heel

com

pare

d to

the

aver

age

fron

t axl

e w

heel

spe

ed is

gre

ater

th

an 1

4%.

Yello

w D

river

War

ning

, A

BS

par

tly o

r co

mpl

etel

y sw

itche

d of

f

• C

heck

all

tires

of t

he v

ehic

le c

once

rnin

g co

rrec

t siz

e.•

Che

ck th

e E

OL

para

met

ers

(tire

circ

umfe

renc

e, to

oth

whe

el te

eth

num

bers

).

5205

15 -

14

= W

heel

Spe

ed

Sen

sing

and

Pol

ewhe

el

- A

xle

8 Le

ft -

spec

ial

inst

ruct

ions

Impe

rmis

sabl

e D

evia

tion

of T

ire S

ize

Det

ecte

d at

Axl

e 8

Left

Whe

n w

heel

spe

ed d

evia

tes

from

the

fast

est

whe

el b

y m

ore

than

the

allo

wab

le li

mit,

the

impe

rmis

sibl

e de

viat

ion

erro

r sh

all b

e re

port

ed fo

r th

e co

ncer

ned

whe

el.

The

sof

twar

e sh

all m

onito

r th

e w

heel

spe

eds

only

w

hen

the

min

imum

whe

el s

peed

is 2

0 km

/h o

r hi

gher

.T

he s

oftw

are

shal

l rep

ort ‘

impe

rmis

sibl

e de

viat

ion’

er

ror

for

a w

heel

if th

e co

mpe

nsat

ed s

peed

of

conc

erne

d w

heel

dev

iate

s fr

om th

e m

axim

um

com

pens

ated

whe

el s

peed

by

mor

e th

an 1

0%.

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

all

tires

of t

he v

ehic

le c

once

rnin

g co

rrec

t siz

e.•

Che

ck th

e E

OL

para

met

ers

(tire

circ

umfe

renc

e, to

oth

whe

el te

eth

num

bers

).

4013173a

Page 62: Maintenance Manual MM-1719 Anti-Lock Braking System · PDF fileMaintenance Manual MM-1719 Anti-Lock Braking System (ABS) and Electronic Stability Control (ESC) For Modular Braking

5 SPN FMI Fault Codes

58 Meritor WABCO Maintenance Manual MM-1719 (Issued 06-17)

Figure 5.43

DTC

SP

N F

MI

Failu

re D

etec

tion

Nam

eFa

ilure

Det

ectio

n D

escr

iptio

nW

arni

ng a

nd S

yste

m

Rea

ctio

nR

epai

r

5205

16 -

2 =

Whe

el S

peed

S

ensi

ng a

nd P

olew

heel

-

Axl

e 8

Rig

ht -

dat

a er

ratic

, in

term

itten

t or

inco

rrec

t

Whe

el S

peed

C

hatte

ring

Failu

re a

t A

xle

8 R

ight

Und

esira

ble

jum

ps in

whe

el s

peed

is r

ecog

nize

d as

cha

tterin

g. W

hen

this

beh

avio

r of

cha

tterin

g is

act

ive

for

cert

ain

time

perio

d, th

e w

heel

spe

ed

chat

terin

g fa

ult w

ill b

e re

cogn

ized

.D

etec

tion

is o

nly

activ

e if

vehi

cle

refe

renc

e sp

eed

is m

ore

than

15

km/h

.

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

the

fittin

g an

d m

ount

ing

of th

e re

leva

nt w

heel

sp

eed

sens

or. (

Can

vib

ratio

ns c

ause

cha

tterin

g?)

• C

heck

the

rele

vant

foun

datio

n br

ake

for

inad

mis

sibl

e vi

brat

ions

(re

turn

spr

ing

defe

ct?

brak

e lin

ings

loos

ened

?).

5205

16 -

7 =

Whe

el S

peed

S

ensi

ng a

nd P

olew

heel

-

Axl

e 8

Rig

ht -

mec

hani

cal

syst

em n

ot r

espo

ndin

g pr

oper

ly o

r ou

t of

adju

stm

ent

Whe

el S

peed

P

erm

anen

t Slip

Fa

ilure

at A

xle

8 R

ight

Whe

n a

sens

or is

left

unco

nnec

ted

from

toot

h w

heel

ass

embl

y, n

o w

heel

spe

eds

are

mea

sure

d in

this

par

ticul

ar w

heel

res

ultin

g in

larg

er s

lip

valu

e on

this

whe

el. T

his

cond

ition

will

res

ult i

n pe

rman

ent s

lip fa

ilure

on

this

whe

el.

Thi

s er

ror

dete

ctio

n is

pos

sibl

e in

thre

e di

ffere

nt

way

s:S

ourc

e 1:

Bas

ed o

n w

heel

slip

sig

nal (

lam

bda

sign

al)

from

AB

S c

ontr

ol fu

nctio

n.S

ourc

e 2:

Bas

ed o

n w

heel

spe

ed v

alue

s.S

ourc

e 3:

Whe

n se

nsor

sta

tus

is in

valid

due

to

high

freq

uenc

y si

gnal

mea

sure

d by

sen

sor.

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

the

rele

vant

whe

el s

peed

sen

sor

and

its fi

tting

. Is

the

dist

ance

bet

wee

n to

oth

whe

el a

nd s

enso

r (a

ir ga

p)

too

wid

e?•

Che

ck th

e w

heel

spe

ed s

enso

r fo

r co

rrec

t vol

tage

out

put.

(Is

volta

ge o

utpu

t suf

ficie

nt?)

• If

sens

or a

nd a

ir ga

p ar

e co

rrec

t, co

ntac

t the

Mer

itor

OnT

rac™

Cus

tom

er C

all C

ente

r at

866

-OnT

rac1

(66

8-72

21).

5205

16 -

9 =

Whe

el S

peed

S

ensi

ng a

nd P

olew

heel

-

Axl

e 8

Rig

ht -

abn

orm

al

upda

te ra

te

Whe

el S

peed

Jum

p D

own

Det

ectio

n at

A

xle

8 R

ight

Jum

p do

wn

failu

re is

det

ecte

d w

hen

whe

el s

peed

dr

ops

sudd

enly

to s

tand

still

from

hig

her

spee

ds.

The

failu

re c

an h

appe

n be

caus

e of

larg

er a

ir ga

p be

twee

n to

oth

whe

el a

nd s

enso

r or

due

to s

enso

r ge

tting

mis

alig

ned

whi

le d

rivin

g.

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

the

rele

vant

whe

el s

peed

sen

sor

and

its fi

tting

. Is

the

dist

ance

bet

wee

n to

oth

whe

el a

nd s

enso

r (a

ir ga

p) to

o w

ide

or is

the

sens

or fi

tting

loos

e?•

If se

nsor

and

fitti

ng a

re c

orre

ct, c

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at 8

66-O

nTra

c1 (

668-

7221

).

5205

16 -

10

= W

heel

Spe

ed

Sen

sing

and

Pol

ewhe

el -

A

xle

8 R

ight

- a

bnor

mal

rate

of

cha

nge

Whe

el S

peed

Jum

p U

p D

etec

tion

at A

xle

8 R

ight

Larg

er a

ir ga

p be

twee

n se

nsor

and

toot

h w

heel

will

le

ad to

jum

p up

failu

re.

Jum

p up

failu

re w

ill b

e de

tect

ed w

hen

whe

els

star

t ro

tatin

g fr

om s

tand

still

.

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

the

rele

vant

whe

el s

peed

sen

sor

and

its fi

tting

. (Is

th

e se

nsor

fitti

ng lo

ose?

)•

If se

nsor

and

fitti

ng a

re c

orre

ct, c

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at 8

66-O

nTra

c1 (

668-

7221

).

5205

16 -

13

= W

heel

Spe

ed

Sen

sing

and

Pol

ewhe

el

- A

xle

8 R

ight

- o

ut o

f ca

libra

tion

Impe

rmis

sabl

e T

ire

Siz

e D

etec

ted

at A

xle

8 R

ight

Whe

n de

viat

ion

of ti

re s

ize

is g

reat

er th

an th

e al

low

able

lim

it, th

e im

perm

issi

ble

tire

size

err

or

shal

l be

set f

or th

e co

ncer

ned

whe

el. T

he s

oftw

are

shal

l rep

ort ‘

impe

rmis

sibl

e tir

e si

ze e

rror

’ for

a

whe

el if

the

min

imum

of a

ll un

corr

ecte

d w

heel

sp

eeds

in th

e ve

hicl

e is

gre

ater

than

20

km/h

. W

hen

the

prec

ondi

tions

are

sat

isfie

d w

ith a

ny o

f th

e fo

llow

ing

cond

ition

s, th

en th

e im

perm

issi

ble

tire

size

err

or s

hall

be s

et fo

r th

e co

ncer

ned

whe

el:

- The

diff

eren

ce in

cor

rect

ion

valu

es b

etw

een

the

left

and

right

whe

els

of a

n ax

le e

xcee

ds 1

0%.

- C

orre

ctio

n va

lue

of th

e w

heel

is m

ore

than

14%

.- W

heel

spe

ed d

evia

tion

betw

een

the

left

and

right

w

heel

s of

an

axle

exc

eeds

10%

.- W

heel

spe

ed d

evia

tion

of th

e w

heel

com

pare

d to

the

aver

age

fron

t axl

e w

heel

spe

ed is

gre

ater

th

an 1

4%.

Yello

w D

river

War

ning

, A

BS

par

tly o

r co

mpl

etel

y sw

itche

d of

f

• C

heck

all

tires

of t

he v

ehic

le c

once

rnin

g co

rrec

t siz

e.•

Che

ck th

e E

OL

para

met

ers

(tire

circ

umfe

renc

e, to

oth

whe

el te

eth

num

bers

).

4013174a

Page 63: Maintenance Manual MM-1719 Anti-Lock Braking System · PDF fileMaintenance Manual MM-1719 Anti-Lock Braking System (ABS) and Electronic Stability Control (ESC) For Modular Braking

5 SPN FMI Fault Codes

59Meritor WABCO Maintenance Manual MM-1719 (Issued 06-17)

Figure 5.44

DTC

SP

N F

MI

Failu

re D

etec

tion

Nam

eFa

ilure

Det

ectio

n D

escr

iptio

nW

arni

ng a

nd S

yste

m

Rea

ctio

nR

epai

r

5205

16 -

14

= W

heel

Spe

ed

Sen

sing

and

Pol

ewhe

el

- A

xle

8 R

ight

- s

peci

al

inst

ruct

ions

Impe

rmis

sabl

e D

evia

tion

of T

ire S

ize

Det

ecte

d at

Axl

e 8

Rig

ht

Whe

n w

heel

spe

ed d

evia

tes

from

the

fast

est

whe

el b

y m

ore

than

the

allo

wab

le li

mit,

the

impe

rmis

sibl

e de

viat

ion

erro

r sh

all b

e re

port

ed fo

r th

e co

ncer

ned

whe

el.

The

sof

twar

e sh

all m

onito

r th

e w

heel

spe

eds

only

w

hen

the

min

imum

whe

el s

peed

is 2

0 km

/h o

r hi

gher

.T

he s

oftw

are

shal

l rep

ort ‘

impe

rmis

sibl

e de

viat

ion’

er

ror

for

a w

heel

if th

e co

mpe

nsat

ed s

peed

of

conc

erne

d w

heel

dev

iate

s fr

om th

e m

axim

um

com

pens

ated

whe

el s

peed

by

mor

e th

an 1

0%.

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

all

tires

of t

he v

ehic

le c

once

rnin

g co

rrec

t siz

e.•

Che

ck th

e E

OL

para

met

ers

(tire

circ

umfe

renc

e, to

oth

whe

el te

eth

num

bers

).

5205

17 -

13

= T

ire S

ize

Com

pens

atio

n -

Mem

oryb

it or

Par

amet

erfa

ilure

- o

ut o

f ca

libra

tion

Par

amet

er e

rror

of

whe

el d

iam

eter

s an

d po

lew

heel

teet

h nu

mbe

r

Whe

n th

e co

nfigu

red

tire

circ

umfe

renc

e of

a w

heel

is

bey

ond

the

defin

ed li

mits

for

the

confi

gure

d to

oth

whe

el te

eth

coun

t or

if th

e to

oth

whe

el te

eth

coun

t is

inva

lid, t

his

erro

r sh

all b

e se

t.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• C

heck

the

rele

vant

EO

L pa

ram

eter

s an

d co

rrec

t the

m.

5205

17 -

31

= T

ire S

ize

Com

pens

atio

n -

Mem

oryb

it or

Par

amet

erfa

ilure

-

cond

ition

exi

sts

Tire

Siz

e C

ompe

nsat

ion

Mem

ory

Bit

If an

‘im

perm

issi

ble

Tire

Siz

e’ e

rror

is d

etec

ted

by T

sc in

the

curr

ent i

gniti

on c

ycle

, the

err

or

info

rmat

ion

shou

ld b

e st

ored

for

use

in fu

ture

ig

nitio

n cy

cles

.T

he m

odul

e sh

all r

epor

t ‘T

scM

emor

yBitE

rror

’ if t

he

stor

age

para

met

er ‘P

RM

stT

ireA

djm

tMem

Bit’

is s

et

and

if an

y of

the

follo

win

g co

nditi

ons

is s

atis

fied:

1. A

cor

rect

ion

valu

e re

set r

eque

st is

not

rec

eive

d til

l 120

ms

sinc

e ig

nitio

n O

N.

2. A

cor

rect

ion

valu

e re

set r

eque

st is

pre

sent

eve

n af

ter

480

ms

sinc

e ig

nitio

n O

N.

Yello

w D

river

War

ning

, A

BS

par

tly o

r co

mpl

etel

y sw

itche

d of

f

• T

his

DT

C o

nly

indi

cate

s th

at a

noth

er fa

ilure

in th

e w

heel

sp

eed

sens

ing

was

det

ecte

d be

fore

. It i

s ne

cess

ary

to

repa

ir th

e w

heel

spe

ed fa

ilure

s th

at a

re s

tore

d in

the

failu

re m

emor

y.

5205

20 -

3 =

AB

S G

roun

d (F

ront

Axl

e) -

vol

tage

abo

ve

norm

al o

r sh

orte

d hi

gh

Failu

re d

etec

tion

'Sho

rtU

b' a

t A

bsG

roun

d (F

ront

A

xle)

A s

hort

circ

uit t

o hi

gh le

vel a

t the

rel

evan

t low

side

-sw

itch

is d

etec

ted

afte

r 15

0 m

s.Ye

llow

Driv

er W

arni

ng,

AB

S p

artly

sw

itche

d of

f•

Che

ck w

iring

of r

elev

ant v

alve

s/ac

tuat

ors.

(Is

ther

e a

shor

t circ

uit?

)•

Con

tact

the

Mer

itor

OnT

rac™

Cus

tom

er C

all C

ente

r at

86

6-O

nTra

c1 (

668-

7221

).

5205

20 -

4 =

AB

S G

roun

d (F

ront

Axl

e) -

vol

tage

bel

ow

norm

al o

r sh

orte

d lo

w

Failu

re d

etec

tion

'Sho

rtG

nd' a

t A

bsG

roun

d (F

ront

A

xle)

A s

hort

circ

uit t

o pe

rman

ent G

ND

-leve

l at t

he

rele

vant

low

side

-sw

itch

is d

etec

ted:

- A

fter

150

ms

(if th

e lo

wsi

de s

witc

h is

ope

n).

- A

fter

2000

ms

(if th

e lo

wsi

de s

witc

h is

clo

sed)

.

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

wiri

ng o

f rel

evan

t val

ves/

actu

ator

s. (

Is th

ere

a sh

ort c

ircui

t?)

• C

heck

rel

evan

t val

ves/

actu

ator

s. (

Is th

ere

an in

tern

al

shor

t circ

uit?

)•

Con

tact

the

Mer

itor

OnT

rac™

Cus

tom

er C

all C

ente

r at

86

6-O

nTra

c1 (

668-

7221

).

5205

21 -

3 =

AB

S G

roun

d (D

rive

Axl

e) -

vol

tage

abo

ve

norm

al o

r sh

orte

d hi

gh

Failu

re d

etec

tion

'Sho

rtU

b' a

t A

bsG

roun

d (D

rive

Axl

e)

A s

hort

circ

uit t

o hi

gh le

vel a

t the

rel

evan

t low

side

-sw

itch

is d

etec

ted

afte

r 15

0 m

s.Ye

llow

Driv

er W

arni

ng,

AB

S c

ompl

etel

y sw

itche

d of

f

• C

heck

wiri

ng o

f rel

evan

t val

ves/

actu

ator

s. (

Is th

ere

a sh

ort c

ircui

t?)

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

5205

21 -

4 =

AB

S G

roun

d (D

rive

Axl

e) -

vol

tage

bel

ow

norm

al o

r sh

orte

d lo

w

Failu

re d

etec

tion

'Sho

rtG

nd' a

t A

bsG

roun

d (D

rive

Axl

e)

A s

hort

circ

uit t

o pe

rman

ent G

ND

-leve

l at t

he

rele

vant

low

side

-sw

itch

is d

etec

ted:

- A

fter

150

ms

(if th

e lo

wsi

de s

witc

h is

ope

n).

- A

fter

2000

ms

(if th

e lo

wsi

de s

witc

h is

clo

sed)

.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• C

heck

wiri

ng o

f rel

evan

t val

ves/

actu

ator

s. (

Is th

ere

a sh

ort c

ircui

t?)

• C

heck

rel

evan

t val

ves/

actu

ator

s. (

Is th

ere

an in

tern

al

shor

t circ

uit?

)•

Con

tact

the

Mer

itor

OnT

rac™

Cus

tom

er C

all C

ente

r at

86

6-O

nTra

c1 (

668-

7221

).

5205

22 -

3 =

AB

S G

roun

d (I

nter

med

iate

Axl

e) -

vol

tage

ab

ove

norm

al o

r sh

orte

d hi

gh

Failu

re d

etec

tion

'Sho

rtU

b' a

t A

bsG

roun

d (I

nter

med

iate

Axl

e)

A s

hort

circ

uit t

o hi

gh le

vel a

t the

rel

evan

t low

side

-sw

itch

is d

etec

ted

afte

r 15

0 m

s.Ye

llow

Driv

er W

arni

ng,

AB

S c

ompl

etel

y sw

itche

d of

f

• C

heck

wiri

ng o

f rel

evan

t val

ves/

actu

ator

s. (

Is th

ere

a sh

ort c

ircui

t?)

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

4013175a

Page 64: Maintenance Manual MM-1719 Anti-Lock Braking System · PDF fileMaintenance Manual MM-1719 Anti-Lock Braking System (ABS) and Electronic Stability Control (ESC) For Modular Braking

5 SPN FMI Fault Codes

60 Meritor WABCO Maintenance Manual MM-1719 (Issued 06-17)

Figure 5.45

DTC

SP

N F

MI

Failu

re D

etec

tion

Nam

eFa

ilure

Det

ectio

n D

escr

iptio

nW

arni

ng a

nd S

yste

m

Rea

ctio

nR

epai

r

5205

22 -

4 =

AB

S G

roun

d (I

nter

med

iate

Axl

e) -

vol

tage

be

low

nor

mal

or

shor

ted

low

Failu

re d

etec

tion

'Sho

rtG

nd' a

t A

bsG

roun

d (I

nter

med

iate

Axl

e)

A s

hort

circ

uit t

o pe

rman

ent G

ND

-leve

l at t

he

rele

vant

low

side

-sw

itch

is d

etec

ted:

- A

fter

150

ms

(if th

e lo

wsi

de s

witc

h is

ope

n).

- A

fter

2000

ms

(if th

e lo

wsi

de s

witc

h is

clo

sed)

.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• C

heck

wiri

ng o

f rel

evan

t val

ves/

actu

ator

s. (

Is th

ere

a sh

ort c

ircui

t?)

• C

heck

rel

evan

t val

ves/

actu

ator

s. (

Is th

ere

an in

tern

al

shor

t circ

uit?

)•

Con

tact

the

Mer

itor

OnT

rac™

Cus

tom

er C

all C

ente

r at

86

6-O

nTra

c1 (

668-

7221

).

5205

23 -

3 =

AU

X G

roun

d (T

raile

r M

odul

ator

) -

volta

ge

abov

e no

rmal

or

shor

ted

high

Failu

re d

etec

tion

'Sho

rtU

b' a

t A

uxG

roun

d (T

raile

r M

odul

ator

)

A s

hort

circ

uit t

o hi

gh le

vel a

t the

rel

evan

t low

side

-sw

itch

is d

etec

ted

afte

r 15

0 m

s.Ye

llow

Driv

er W

arni

ng,

AB

S fu

lly a

vaila

ble

• C

heck

wiri

ng o

f rel

evan

t val

ves/

actu

ator

s. (

Is th

ere

a sh

ort c

ircui

t?)

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

5205

23 -

4 =

AU

X G

roun

d (T

raile

r M

odul

ator

) -

volta

ge

belo

w n

orm

al o

r sh

orte

d lo

w

Failu

re d

etec

tion

'Sho

rtG

nd' a

t Aux

iliar

y O

utpu

t Gro

und

(Tra

iler

Mod

ulat

or)

A s

hort

circ

uit t

o pe

rman

ent G

ND

-leve

l at t

he

rele

vant

low

side

-sw

itch

is d

etec

ted:

- A

fter

150

ms

(if th

e lo

wsi

de s

witc

h is

ope

n).

- A

fter

2000

ms

(if th

e lo

wsi

de s

witc

h is

clo

sed)

.

Yello

w D

river

War

ning

, A

BS

fully

ava

ilabl

e•

Che

ck w

iring

of r

elev

ant v

alve

s/ac

tuat

ors.

(Is

ther

e a

shor

t circ

uit?

)•

Che

ck r

elev

ant v

alve

s/ac

tuat

ors.

(Is

ther

e an

inte

rnal

sh

ort c

ircui

t?)

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

5205

24 -

3 =

AU

X G

roun

d (3

/2 V

alve

Gov

erno

r/R

egen

) -

volta

ge a

bove

nor

mal

or

shor

ted

high

Failu

re d

etec

tion

'Sho

rtU

b' a

t A

uxG

roun

d (3

/2 V

alve

G

over

nor/

Reg

en)

A s

hort

circ

uit t

o hi

gh le

vel a

t the

rel

evan

t low

side

-sw

itch

is d

etec

ted

afte

r 15

0 m

s.Ye

llow

Driv

er W

arni

ng,

AB

S fu

lly a

vaila

ble

• C

heck

wiri

ng o

f rel

evan

t val

ves/

actu

ator

s. (

Is th

ere

a sh

ort c

ircui

t?)

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

5205

24 -

4 =

AU

X G

roun

d (3

/2 V

alve

Gov

erno

r/R

egen

) -

volta

ge b

elow

nor

mal

or

shor

ted

low

Failu

re d

etec

tion

'Sho

rtG

nd' a

t Aux

iliar

y O

utpu

t Gro

und

(3/2

Va

lve

Gov

erno

r/R

egen

)

A s

hort

circ

uit t

o pe

rman

ent G

ND

-leve

l at t

he

rele

vant

low

side

-sw

itch

is d

etec

ted:

- A

fter

150

ms

(if th

e lo

wsi

de s

witc

h is

ope

n).

- A

fter

2000

ms

(if th

e lo

wsi

de s

witc

h is

clo

sed)

.

Yello

w D

river

War

ning

, A

BS

fully

ava

ilabl

e•

Che

ck w

iring

of r

elev

ant v

alve

s/ac

tuat

ors.

(Is

ther

e a

shor

t circ

uit?

)•

Che

ck r

elev

ant v

alve

s/ac

tuat

ors.

(Is

ther

e an

inte

rnal

sh

ort c

ircui

t?)

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

5205

25 -

3 =

Sol

enoi

d Va

lve/

Diff

-Val

ve (

Driv

e A

xle

AB

V)

- vo

ltage

abo

ve

norm

al o

r sh

orte

d hi

gh

Failu

re d

etec

tion

'Sho

rtU

b' a

t S

olen

oidV

alve

(D

rive

Axl

e A

BV

)

A s

hort

circ

uit t

o U

B o

f the

rel

evan

t act

uato

r is

det

ecte

d in

act

ive

and

inac

tive

stat

es. T

he

dete

ctio

n tim

e is

200

ms.

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

wiri

ng o

f rel

evan

t val

ve/a

ctua

tor.

(Is

ther

e a

shor

t ci

rcui

t?)

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

5205

25 -

4 =

Sol

enoi

d Va

lve/

Diff

-Val

ve (

Driv

e A

xle

AB

V)

- vo

ltage

bel

ow n

orm

al

or s

hort

ed lo

w

Failu

re d

etec

tion

'Sho

rtG

nd' a

t S

olen

oidV

alve

(D

rive

Axl

e A

BV

)

A s

hort

circ

uit t

o G

ND

of t

he r

elev

ant a

ctua

tor

is d

etec

ted

in a

ctiv

e an

d in

activ

e st

ates

. The

de

tect

ion

time

is 2

00 m

s.R

emar

k: A

sho

rted

load

als

o le

ads

to a

sho

rt to

G

ND

failu

re. A

sho

rted

load

is d

etec

ted:

-

Afte

r 20

0 m

s af

ter

igni

tion-

on a

nd a

lso

if va

lve

is

activ

ated

.-

Afte

r 10

00 m

s if

valv

e is

not

act

ivat

ed.

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

wiri

ng o

f rel

evan

t val

ve/a

ctua

tor.

(Is

ther

e a

shor

t ci

rcui

t?)

• C

heck

rel

evan

t val

ve/a

ctua

tor.

(Is

ther

e an

inte

rnal

sho

rt

circ

uit?

)•

Con

tact

the

Mer

itor

OnT

rac™

Cus

tom

er C

all C

ente

r at

86

6-O

nTra

c1 (

668-

7221

).

5205

25 -

5 =

Sol

enoi

d Va

lve/

Diff

-Val

ve (

Driv

e A

xle

AB

V)

- cu

rren

t bel

ow n

orm

al

or o

pen

circ

uit

Failu

re d

etec

tion

'Inte

rrup

tion'

at

Sol

enoi

dVal

ve (

Driv

e A

xle

AB

V)

An

inte

rrup

tion

of th

e re

leva

nt a

ctua

tor

is d

etec

ted

in a

ctiv

e an

d in

activ

e st

ates

. The

det

ectio

n tim

e is

200

ms.

Yello

w D

river

War

ning

, A

BS

fully

ava

ilabl

e•

Che

ck fo

r co

rrec

t par

amet

er s

ettin

g. (

Is th

e re

leva

nt

valv

e/ac

tuat

or e

quip

ped?

)•

Che

ck w

iring

of r

elev

ant v

alve

/act

uato

r. (I

s th

ere

an

inte

rrup

tion?

)•

Che

ck r

elev

ant v

alve

/act

uato

r. (I

s th

ere

an in

tern

al

inte

rrup

tion?

)•

Con

tact

the

Mer

itor

OnT

rac™

Cus

tom

er C

all C

ente

r at

86

6-O

nTra

c1 (

668-

7221

).

5205

25 -

13

= S

olen

oid

Valv

e/D

iff-V

alve

(D

rive

Axl

e A

BV

) -

out o

f cal

ibra

tion

Failu

re d

etec

tion

'Ove

rEqu

ippe

d' a

t S

olen

oidV

alve

(D

rive

Axl

e A

BV

)

A fa

ilure

is d

etec

ted

if a

com

pone

nt is

con

nect

ed

to th

e E

CU

, but

it is

not

act

ivat

ed in

the

para

met

er

setti

ngs.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• C

heck

for

corr

ect p

aram

eter

set

ting.

(Is

the

rele

vant

va

lve/

actu

ator

equ

ippe

d?)

• C

heck

wiri

ng o

f rel

evan

t val

ve/a

ctua

tor.

(Is

EC

U p

in

open

?)•

Con

tact

the

Mer

itor

OnT

rac™

Cus

tom

er C

all C

ente

r at

86

6-O

nTra

c1 (

668-

7221

).

4013176a

Page 65: Maintenance Manual MM-1719 Anti-Lock Braking System · PDF fileMaintenance Manual MM-1719 Anti-Lock Braking System (ABS) and Electronic Stability Control (ESC) For Modular Braking

5 SPN FMI Fault Codes

61Meritor WABCO Maintenance Manual MM-1719 (Issued 06-17)

Figure 5.46

DTC

SP

N F

MI

Failu

re D

etec

tion

Nam

eFa

ilure

Det

ectio

n D

escr

iptio

nW

arni

ng a

nd S

yste

m

Rea

ctio

nR

epai

r

5205

26 -

3 =

Sol

enoi

d Va

lve/

Diff

-Val

ve (

Fron

t A

xle

AB

V)

- vo

ltage

abo

ve

norm

al o

r sh

orte

d hi

gh

Failu

re d

etec

tion

'Sho

rtU

b' a

t S

olen

oidV

alve

(Fr

ont

Axl

e R

ight

)

A s

hort

circ

uit t

o U

B o

f the

rel

evan

t act

uato

r is

det

ecte

d in

act

ive

and

inac

tive

stat

es. T

he

dete

ctio

n tim

e is

200

ms.

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

wiri

ng o

f rel

evan

t val

ve/a

ctua

tor.

(Is

ther

e a

shor

t ci

rcui

t?)

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

5205

26 -

4 =

Sol

enoi

d Va

lve/

Diff

-Val

ve (

Fron

t Axl

e A

BV

) -

volta

ge b

elow

nor

mal

or

sho

rted

low

Failu

re d

etec

tion

'Sho

rtG

nd' a

t S

olen

oidV

alve

(Fr

ont

Axl

e R

ight

)

A s

hort

circ

uit t

o G

ND

of t

he r

elev

ant a

ctua

tor

is d

etec

ted

in a

ctiv

e an

d in

activ

e st

ates

. The

de

tect

ion

time

is 2

00 m

s.R

emar

k: A

sho

rted

load

als

o le

ads

to a

sho

rt to

G

ND

failu

re. A

sho

rted

load

is d

etec

ted:

-

Afte

r 20

0 m

s af

ter

igni

tion-

on a

nd a

lso

if va

lve

is

activ

ated

.-

Afte

r 10

00 m

s if

valv

e is

not

act

ivat

ed.

Yello

w D

river

War

ning

, A

BS

par

tly s

witc

hed

off

• C

heck

wiri

ng o

f rel

evan

t val

ve/a

ctua

tor.

(Is

ther

e a

shor

t ci

rcui

t?)

• C

heck

rel

evan

t val

ve/a

ctua

tor.

(Is

ther

e an

inte

rnal

sho

rt

circ

uit?

)•

Con

tact

the

Mer

itor

OnT

rac™

Cus

tom

er C

all C

ente

r at

86

6-O

nTra

c1 (

668-

7221

).

5205

26 -

5 =

Sol

enoi

d Va

lve/

Diff

-Val

ve (

Fron

t Axl

e A

BV

) -

curr

ent b

elow

nor

mal

or

ope

n ci

rcui

t

Failu

re d

etec

tion

'Inte

rrup

tion'

at

Sol

enoi

dVal

ve (

Fron

t A

xle

AB

V)

An

inte

rrup

tion

of th

e re

leva

nt a

ctua

tor

is d

etec

ted

in a

ctiv

e an

d in

activ

e st

ates

. The

det

ectio

n tim

e is

200

ms.

Yello

w D

river

War

ning

, A

BS

fully

ava

ilabl

e•

Che

ck fo

r co

rrec

t par

amet

er s

ettin

g. (

Is th

e re

leva

nt

valv

e/ac

tuat

or e

quip

ped?

)•

Che

ck w

iring

of r

elev

ant v

alve

/act

uato

r. (I

s th

ere

an

inte

rrup

tion?

)•

Che

ck r

elev

ant v

alve

/act

uato

r. (I

s th

ere

an in

tern

al

inte

rrup

tion?

)•

Con

tact

the

Mer

itor

OnT

rac™

Cus

tom

er C

all C

ente

r at

86

6-O

nTra

c1 (

668-

7221

).

5205

26 -

13

= S

olen

oid

Valv

e/D

iff-V

alve

(Fr

ont A

xle

AB

V)

- ou

t of c

alib

ratio

n

Failu

re d

etec

tion

'Ove

rEqu

ippe

d' a

t S

olen

oidV

alve

(Fr

ont

Axl

e A

BV

)

A fa

ilure

is d

etec

ted

if a

com

pone

nt is

con

nect

ed

to th

e E

CU

, but

it is

not

act

ivat

ed in

the

para

met

er

setti

ngs.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• C

heck

for

corr

ect p

aram

eter

set

ting.

(Is

the

rele

vant

va

lve/

actu

ator

equ

ippe

d?)

• C

heck

wiri

ng o

f rel

evan

t val

ve/a

ctua

tor.

(Is

EC

U p

in

open

?)•

Con

tact

the

Mer

itor

OnT

rac™

Cus

tom

er C

all C

ente

r at

86

6-O

nTra

c1 (

668-

7221

).

5205

27 -

3 =

Sol

enoi

d Va

lve/

Diff

-Val

ve (

Trai

ler

AB

V)

- vo

ltage

abo

ve

norm

al o

r sh

orte

d hi

gh

Failu

re d

etec

tion

'Sho

rtU

b' a

t S

olen

oidV

alve

(Tr

aile

r A

BV

)

A s

hort

circ

uit t

o U

B o

f the

rel

evan

t act

uato

r is

det

ecte

d in

act

ive

and

inac

tive

stat

es. T

he

dete

ctio

n tim

e is

200

ms.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• C

heck

wiri

ng o

f rel

evan

t val

ve/a

ctua

tor.

(Is

ther

e a

shor

t ci

rcui

t?)

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

5205

27 -

4 =

Sol

enoi

d Va

lve/

Diff

-Val

ve (

Trai

ler

AB

V)

- vo

ltage

bel

ow n

orm

al

or s

hort

ed lo

w

Failu

re d

etec

tion

'Sho

rtG

nd' a

t S

olen

oidV

alve

(Tr

aile

r A

BV

)

A s

hort

circ

uit t

o G

ND

of t

he r

elev

ant a

ctua

tor

is d

etec

ted

in a

ctiv

e an

d in

activ

e st

ates

. The

de

tect

ion

time

is 2

00 m

s.R

emar

k: A

sho

rted

load

als

o le

ads

to a

sho

rt to

G

ND

failu

re. A

sho

rted

load

is d

etec

ted:

-

Afte

r 20

0 m

s af

ter

igni

tion-

on a

nd a

lso

if va

lve

is

activ

ated

.-

Afte

r 10

00 m

s if

valv

e is

not

act

ivat

ed.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• C

heck

wiri

ng o

f rel

evan

t val

ve/a

ctua

tor.

(Is

ther

e a

shor

t ci

rcui

t?)

• C

heck

rel

evan

t val

ve/a

ctua

tor.

(Is

ther

e an

inte

rnal

sho

rt

circ

uit?

)•

Con

tact

the

Mer

itor

OnT

rac™

Cus

tom

er C

all C

ente

r at

86

6-O

nTra

c1 (

668-

7221

).

5205

27 -

5 =

Sol

enoi

d Va

lve/

Diff

-Val

ve (

Trai

ler

AB

V)

- cu

rren

t bel

ow n

orm

al

or o

pen

circ

uit

Failu

re d

etec

tion

'Inte

rrup

tion'

at

Sol

enoi

dVal

ve (

Trai

ler

AB

V)

An

inte

rrup

tion

of th

e re

leva

nt a

ctua

tor

is d

etec

ted

in a

ctiv

e an

d in

activ

e st

ates

. The

det

ectio

n tim

e is

200

ms.

Yello

w D

river

War

ning

, A

BS

fully

ava

ilabl

e•

Che

ck fo

r co

rrec

t par

amet

er s

ettin

g. (

Is th

e re

leva

nt

valv

e/ac

tuat

or e

quip

ped?

)•

Che

ck w

iring

of r

elev

ant v

alve

/act

uato

r. (I

s th

ere

an

inte

rrup

tion?

)•

Che

ck r

elev

ant v

alve

/act

uato

r. (I

s th

ere

an in

tern

al

inte

rrup

tion?

)•

Con

tact

the

Mer

itor

OnT

rac™

Cus

tom

er C

all C

ente

r at

86

6-O

nTra

c1 (

668-

7221

).

5205

27 -

13

= S

olen

oid

Valv

e/D

iff-V

alve

(Tr

aile

r A

BV

) -

out o

f cal

ibra

tion

Failu

re d

etec

tion

'Ove

rEqu

ippe

d' a

t S

olen

oidV

alve

(Tr

aile

r A

BV

)

A fa

ilure

is d

etec

ted

if a

com

pone

nt is

con

nect

ed

to th

e E

CU

, but

it is

not

act

ivat

ed in

the

para

met

er

setti

ngs.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• C

heck

for

corr

ect p

aram

eter

set

ting.

(Is

the

rele

vant

va

lve/

actu

ator

equ

ippe

d?)

• C

heck

wiri

ng o

f rel

evan

t val

ve/a

ctua

tor.

(Is

EC

U p

in

open

?)•

Con

tact

the

Mer

itor

OnT

rac™

Cus

tom

er C

all C

ente

r at

86

6-O

nTra

c1 (

668-

7221

).

4013177a

Page 66: Maintenance Manual MM-1719 Anti-Lock Braking System · PDF fileMaintenance Manual MM-1719 Anti-Lock Braking System (ABS) and Electronic Stability Control (ESC) For Modular Braking

5 SPN FMI Fault Codes

62 Meritor WABCO Maintenance Manual MM-1719 (Issued 06-17)

Figure 5.47

DTC

SP

N F

MI

Failu

re D

etec

tion

Nam

eFa

ilure

Det

ectio

n D

escr

iptio

nW

arni

ng a

nd S

yste

m

Rea

ctio

nR

epai

r

5205

30 -

0 =

Ove

rHea

ting

- P

ress

ure

Mod

ulat

ion

Valv

e A

BS

(Fr

ont A

xle

Left)

- d

ata

valid

, but

abo

ve n

orm

al

oper

atio

n ra

nge

(mos

t se

vere

leve

l)

Ove

rhea

ting

at A

BS

Va

lve

(Fro

nt A

xle

Left)

/Hig

h Le

vel

An

over

heat

ing

failu

re o

f the

rel

evan

t AB

S v

alve

is

set i

f the

AB

S v

alve

was

act

ivat

ed fo

r a

long

tim

e so

the

tem

pera

ture

lim

it (c

ritic

al s

econ

d le

vel)

was

re

ache

d.T

ime

for

criti

cal l

evel

:-

200

s (1

2V S

yste

m)

Yello

w D

river

War

ning

, A

BS

fully

ava

ilabl

e•

AB

S v

alve

s w

ere

over

heat

ed. R

educ

e ac

tivat

ion

time

espe

cial

ly o

f hill

hold

er a

nd h

altb

rake

func

tion.

5205

30 -

15

= O

verH

eatin

g -

Pre

ssur

e M

odul

atio

n Va

lve

AB

S (

Fron

t Axl

e Le

ft) -

dat

a va

lid, b

ut a

bove

nor

mal

op

erat

ion

rang

e (le

ast

seve

re le

vel)

Ove

rhea

ting

at A

BS

Va

lve

(Fro

nt A

xle

Left)

/Low

Lev

el

An

over

heat

ing

failu

re o

f the

rel

evan

t AB

S v

alve

is

set i

f the

AB

S v

alve

was

act

ivat

ed fo

r a

long

tim

e so

the

tem

pera

ture

lim

it (p

rew

arni

ng le

vel)

was

re

ache

d.T

ime

for

prew

arni

ng le

vel:

- 18

0 s

(12V

Sys

tem

)

Yello

w D

river

War

ning

, A

BS

fully

ava

ilabl

e•

AB

S v

alve

s w

ere

over

heat

ed. R

educ

e ac

tivat

ion

time

espe

cial

ly o

f hill

hold

er a

nd h

altb

rake

func

tion.

5205

31 -

0 =

Ove

rHea

ting

- P

ress

ure

Mod

ulat

ion

Valv

e A

BS

(Fr

ont A

xle

Rig

ht)

- da

ta v

alid

, but

abo

ve n

orm

al

oper

atio

n ra

nge

(mos

t se

vere

leve

l)

Ove

rhea

ting

at A

BS

Va

lve

(Fro

nt A

xle

Rig

ht)/

Hig

h Le

vel

An

over

heat

ing

failu

re o

f the

rel

evan

t AB

S v

alve

is

set i

f the

AB

S v

alve

was

act

ivat

ed fo

r a

long

tim

e so

the

tem

pera

ture

lim

it (c

ritic

al s

econ

d le

vel)

was

re

ache

d.T

ime

for

criti

cal l

evel

:-

200

s (1

2V S

yste

m)

Yello

w D

river

War

ning

, A

BS

fully

ava

ilabl

e•

AB

S v

alve

s w

ere

over

heat

ed. R

educ

e ac

tivat

ion

time

espe

cial

ly o

f hill

hold

er a

nd h

altb

rake

func

tion.

5205

31 -

15

= O

verH

eatin

g -

Pre

ssur

e M

odul

atio

n Va

lve

AB

S (

Fron

t Axl

e R

ight

) -

data

val

id, b

ut a

bove

nor

mal

op

erat

ion

rang

e (le

ast

seve

re le

vel)

Ove

rhea

ting

at A

BS

Va

lve

(Fro

nt A

xle

Rig

ht)/

Low

Lev

el

An

over

heat

ing

failu

re o

f the

rel

evan

t AB

S v

alve

is

set i

f the

AB

S v

alve

was

act

ivat

ed fo

r a

long

tim

e so

the

tem

pera

ture

lim

it (p

rew

arni

ng le

vel)

was

re

ache

d.T

ime

for

prew

arni

ng le

vel:

- 18

0 s

(12V

Sys

tem

)

Yello

w D

river

War

ning

, A

BS

fully

ava

ilabl

e•

AB

S v

alve

s w

ere

over

heat

ed. R

educ

e ac

tivat

ion

time

espe

cial

ly o

f hill

hold

er a

nd h

altb

rake

func

tion.

5205

32 -

0 =

Ove

rHea

ting

- P

ress

ure

Mod

ulat

ion

Valv

e A

BS

(D

rive

Axl

e Le

ft) -

dat

a va

lid, b

ut a

bove

nor

mal

op

erat

ion

rang

e (m

ost

seve

re le

vel)

Ove

rhea

ting

at A

BS

Va

lve

(Driv

e A

xle

Left)

/Hig

h Le

vel

An

over

heat

ing

failu

re o

f the

rel

evan

t AB

S v

alve

is

set i

f the

AB

S v

alve

was

act

ivat

ed fo

r a

long

tim

e so

the

tem

pera

ture

lim

it (c

ritic

al s

econ

d le

vel)

was

re

ache

d.T

ime

for

criti

cal l

evel

:-

200

s (1

2V S

yste

m)

Yello

w D

river

War

ning

, A

BS

fully

ava

ilabl

e•

AB

S v

alve

s w

ere

over

heat

ed. R

educ

e ac

tivat

ion

time

espe

cial

ly o

f hill

hold

er a

nd h

altb

rake

func

tion.

5205

32 -

15

= O

verH

eatin

g -

Pre

ssur

e M

odul

atio

n Va

lve

AB

S (

Driv

e A

xle

Left)

- d

ata

valid

, but

abo

ve n

orm

al

oper

atio

n ra

nge

(leas

t se

vere

leve

l)

Ove

rhea

ting

at A

BS

Va

lve

(Driv

e A

xle

Left)

/Low

Lev

el

An

over

heat

ing

failu

re o

f the

rel

evan

t AB

S v

alve

is

set i

f the

AB

S v

alve

was

act

ivat

ed fo

r a

long

tim

e so

the

tem

pera

ture

lim

it (p

rew

arni

ng le

vel)

was

re

ache

d.T

ime

for

prew

arni

ng le

vel:

- 18

0 s

(12V

Sys

tem

)

Yello

w D

river

War

ning

, A

BS

fully

ava

ilabl

e•

AB

S v

alve

s w

ere

over

heat

ed. R

educ

e ac

tivat

ion

time

espe

cial

ly o

f hill

hold

er a

nd h

altb

rake

func

tion.

5205

33 -

0 =

Ove

rHea

ting

- P

ress

ure

Mod

ulat

ion

Valv

e A

BS

(D

rive

Axl

e R

ight

) -

data

val

id, b

ut a

bove

nor

mal

op

erat

ion

rang

e (m

ost

seve

re le

vel)

Ove

rhea

ting

at A

BS

Va

lve

(Driv

e A

xle

Rig

ht)/

Hig

h Le

vel

An

over

heat

ing

failu

re o

f the

rel

evan

t AB

S v

alve

is

set i

f the

AB

S v

alve

was

act

ivat

ed fo

r a

long

tim

e so

the

tem

pera

ture

lim

it (c

ritic

al s

econ

d le

vel)

was

re

ache

d.T

ime

for

criti

cal l

evel

:-

200

s (1

2V S

yste

m)

Yello

w D

river

War

ning

, A

BS

fully

ava

ilabl

e•

AB

S v

alve

s w

ere

over

heat

ed. R

educ

e ac

tivat

ion

time

espe

cial

ly o

f hill

hold

er a

nd h

altb

rake

func

tion.

4013178a

Page 67: Maintenance Manual MM-1719 Anti-Lock Braking System · PDF fileMaintenance Manual MM-1719 Anti-Lock Braking System (ABS) and Electronic Stability Control (ESC) For Modular Braking

5 SPN FMI Fault Codes

63Meritor WABCO Maintenance Manual MM-1719 (Issued 06-17)

Figure 5.48D

TC S

PN

FM

IFa

ilure

Det

ectio

n N

ame

Failu

re D

etec

tion

Des

crip

tion

War

ning

and

Sys

tem

R

eact

ion

Rep

air

5205

33 -

15

= O

verH

eatin

g -

Pre

ssur

e M

odul

atio

n Va

lve

AB

S (

Driv

e A

xle

Rig

ht)

- da

ta v

alid

, but

abo

ve n

orm

al

oper

atio

n ra

nge

(leas

t se

vere

leve

l)

Ove

rhea

ting

at A

BS

Va

lve

(Driv

e A

xle

Rig

ht)/

Low

Lev

el

An

over

heat

ing

failu

re o

f the

rel

evan

t AB

S v

alve

is

set i

f the

AB

S v

alve

was

act

ivat

ed fo

r a

long

tim

e so

the

tem

pera

ture

lim

it (p

rew

arni

ng le

vel)

was

re

ache

d.T

ime

for

prew

arni

ng le

vel:

- 18

0 s

(12V

Sys

tem

)

Yello

w D

river

War

ning

, A

BS

fully

ava

ilabl

e•

AB

S v

alve

s w

ere

over

heat

ed. R

educ

e ac

tivat

ion

time

espe

cial

ly o

f hill

hold

er a

nd h

altb

rake

func

tion.

5205

34 -

0 =

Ove

rHea

ting

- P

ress

ure

Mod

ulat

ion

Valv

e A

BS

(In

term

edia

te A

xle

Left)

- d

ata

valid

, but

abo

ve

norm

al o

pera

tion

rang

e (m

ost s

ever

e le

vel)

Ove

rhea

ting

at A

BS

Va

lve

(Int

erm

edia

te

Axl

e Le

ft)/H

igh

Leve

l

An

over

heat

ing

failu

re o

f the

rel

evan

t AB

S v

alve

is

set i

f the

AB

S v

alve

was

act

ivat

ed fo

r a

long

tim

e so

the

tem

pera

ture

lim

it (c

ritic

al s

econ

d le

vel)

was

re

ache

d.T

ime

for

criti

cal l

evel

:-

200

s (1

2V S

yste

m)

Yello

w D

river

War

ning

, A

BS

fully

ava

ilabl

e•

AB

S v

alve

s w

ere

over

heat

ed. R

educ

e ac

tivat

ion

time

espe

cial

ly o

f hill

hold

er a

nd h

altb

rake

func

tion.

5205

34 -

15

= O

verH

eatin

g -

Pre

ssur

e M

odul

atio

n Va

lve

AB

S (

Inte

rmed

iate

Axl

e Le

ft) -

dat

a va

lid, b

ut a

bove

no

rmal

ope

ratio

n ra

nge

(leas

t sev

ere

leve

l)

Ove

rhea

ting

at A

BS

Va

lve

(Int

erm

edia

te

Axl

e Le

ft)/L

ow L

evel

An

over

heat

ing

failu

re o

f the

rel

evan

t AB

S v

alve

is

set i

f the

AB

S v

alve

was

act

ivat

ed fo

r a

long

tim

e so

the

tem

pera

ture

lim

it (p

rew

arni

ng le

vel)

was

re

ache

d.T

ime

for

prew

arni

ng le

vel:

- 18

0 s

(12V

Sys

tem

)

Yello

w D

river

War

ning

, A

BS

fully

ava

ilabl

e•

AB

S v

alve

s w

ere

over

heat

ed. R

educ

e ac

tivat

ion

time

espe

cial

ly o

f hill

hold

er a

nd h

altb

rake

func

tion.

5205

35 -

0 =

Ove

rHea

ting

- P

ress

ure

Mod

ulat

ion

Valv

e A

BS

(In

term

edia

te A

xle

Rig

ht) -

dat

a va

lid, b

ut a

bove

no

rmal

ope

ratio

n ra

nge

(mos

t sev

ere

leve

l)

Ove

rhea

ting

at A

BS

Va

lve

(Int

erm

edia

te

Axl

e R

ight

)/H

igh

Leve

l

An

over

heat

ing

failu

re o

f the

rel

evan

t AB

S v

alve

is

set i

f the

AB

S v

alve

was

act

ivat

ed fo

r a

long

tim

e so

the

tem

pera

ture

lim

it (c

ritic

al s

econ

d le

vel)

was

re

ache

d.T

ime

for

criti

cal l

evel

:-

200

s (1

2V S

yste

m)

Yello

w D

river

War

ning

, A

BS

fully

ava

ilabl

e•

AB

S v

alve

s w

ere

over

heat

ed. R

educ

e ac

tivat

ion

time

espe

cial

ly o

f hill

hold

er a

nd h

altb

rake

func

tion.

5205

35 -

15

= O

verH

eatin

g -

Pre

ssur

e M

odul

atio

n Va

lve

AB

S (

Inte

rmed

iate

Axl

e R

ight

) - d

ata

valid

, but

abo

ve

norm

al o

pera

tion

rang

e (le

ast s

ever

e le

vel)

Ove

rhea

ting

at A

BS

Va

lve

(Int

erm

edia

te

Axl

e R

ight

)/Lo

w L

evel

An

over

heat

ing

failu

re o

f the

rel

evan

t AB

S v

alve

is

set i

f the

AB

S v

alve

was

act

ivat

ed fo

r a

long

tim

e so

the

tem

pera

ture

lim

it (p

rew

arni

ng le

vel)

was

re

ache

d.T

ime

for

prew

arni

ng le

vel:

- 18

0 s

(12V

Sys

tem

)

Yello

w D

river

War

ning

, A

BS

fully

ava

ilabl

e•

AB

S v

alve

s w

ere

over

heat

ed. R

educ

e ac

tivat

ion

time

espe

cial

ly o

f hill

hold

er a

nd h

altb

rake

func

tion.

5205

36 -

0 =

Ove

rHea

ting

- P

ress

ure

Mod

ulat

ion

Valv

e A

BS

(Tr

aile

r C

ontr

ol)

- da

ta

valid

, but

abo

ve n

orm

al

oper

atin

g ra

nge

(mos

t se

vere

leve

l)

Ove

rhea

ting

at A

BS

Va

lve

(Tra

iler

Con

trol

)/H

igh

Leve

l

An

over

heat

ing

failu

re o

f the

rel

evan

t AB

S v

alve

is

set i

f the

AB

S v

alve

was

act

ivat

ed fo

r a

long

tim

e so

the

tem

pera

ture

lim

it (c

ritic

al s

econ

d le

vel)

was

re

ache

d.T

ime

for

criti

cal l

evel

:-

200

s (1

2V S

yste

m)

Yello

w D

river

War

ning

, A

BS

fully

ava

ilabl

e•

AB

S v

alve

s w

ere

over

heat

ed. R

educ

e ac

tivat

ion

time

espe

cial

ly o

f hill

hold

er a

nd h

altb

rake

func

tion.

5205

36 -

15

= O

verH

eatin

g -

Pre

ssur

e M

odul

atio

n Va

lve

AB

S (

Trai

ler

Con

trol

) -

data

va

lid, b

ut a

bove

nor

mal

op

erat

ing

rang

e (le

ast

seve

re le

vel)

Ove

rhea

ting

at A

BS

Va

lve

(Tra

iler

Con

trol

)/Lo

w L

evel

An

over

heat

ing

failu

re o

f the

rel

evan

t AB

S v

alve

is

set i

f the

AB

S v

alve

was

act

ivat

ed fo

r a

long

tim

e so

the

tem

pera

ture

lim

it (p

rew

arni

ng le

vel)

was

re

ache

d.T

ime

for

prew

arni

ng le

vel:

- 18

0 s

(12V

Sys

tem

)

Yello

w D

river

War

ning

, A

BS

fully

ava

ilabl

e•

AB

S v

alve

s w

ere

over

heat

ed. R

educ

e ac

tivat

ion

time

espe

cial

ly o

f hill

hold

er a

nd h

altb

rake

func

tion.

5208

00 -

2 =

Gyr

o Te

mpe

ratu

re S

igna

l - d

ata

erra

tic, i

nter

mitt

ent o

r in

corr

ect

Yaw

Rat

e Te

mpe

ratu

re R

ange

C

heck

The

failu

re is

det

ecte

d if

the

valid

rang

e of

the

tem

pera

ture

sen

sor

sign

al w

as le

ft.Ye

llow

Driv

er W

arni

ng,

AB

S fu

lly a

vaila

ble

• C

heck

and

rep

lace

the

ES

C m

odul

e.

4013179a

Page 68: Maintenance Manual MM-1719 Anti-Lock Braking System · PDF fileMaintenance Manual MM-1719 Anti-Lock Braking System (ABS) and Electronic Stability Control (ESC) For Modular Braking

5 SPN FMI Fault Codes

64 Meritor WABCO Maintenance Manual MM-1719 (Issued 06-17)

Figure 5.49

DTC

SP

N F

MI

Failu

re D

etec

tion

Nam

eFa

ilure

Det

ectio

n D

escr

iptio

nW

arni

ng a

nd S

yste

m

Rea

ctio

nR

epai

r

5208

00 -

10

= G

yro

Tem

pera

ture

Sig

nal -

ab

norm

al ra

te o

f cha

nge

Yaw

Rat

e Te

mpe

ratu

re G

radi

ent

Che

ck

The

failu

re is

det

ecte

d if

the

grad

ient

of t

he

tem

pera

ture

sen

sor

sign

al w

as to

o hi

gh.

Yello

w D

river

War

ning

, A

BS

fully

ava

ilabl

e•

Che

ck a

nd r

epla

ce th

e E

SC

mod

ule.

5230

00 -

2 =

Inva

lid

Par

amet

ers

Par

t 1 -

dat

a er

ratic

, int

erm

itten

t or

inco

rrec

t

Gen

eric

Che

ck fo

r im

plau

sibl

e E

OL

Par

amet

ers

The

gen

eric

par

amet

er p

laus

ibili

ty c

heck

eva

luat

es

if th

e E

OL

para

met

ers

are

com

plet

e an

d pl

ausi

ble.

If

a pa

ram

eter

inco

mpa

tibili

ty w

as d

etec

ted,

de

taile

d in

form

atio

n ab

out t

he in

com

patib

le

para

met

er v

alue

will

be

stor

ed. T

his

para

met

er

inco

mpa

tibili

ty in

form

atio

n ca

n be

rea

d ou

t to

iden

tify

the

faul

ty p

aram

eter

.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• C

heck

the

EO

L pa

ram

eter

s an

d co

rrec

t the

m.

• R

emar

k: If

an

inco

mpa

tibili

ty w

as d

etec

ted,

spe

cial

in

form

atio

n ab

out i

mpl

ausi

ble

para

met

er v

alue

is s

tore

d.

Thi

s in

form

atio

n ca

n be

rea

d ou

t by

diag

nosi

s to

loca

lize

the

faul

ty p

aram

eter

(se

rvic

e 22

1C

08

‘Prm

Pla

usy

Failu

re C

ode’

). T

he d

escr

iptio

n of

the

num

bers

can

be

foun

d in

a s

epar

ate

list ‘

Par

amet

er P

laus

ibili

ty F

ailu

re ID

’.

5230

00 -

22

= In

valid

P

aram

eter

s P

art 1

-

rese

rved

(22

)

Inva

lid P

aram

eter

S

ettin

g fo

r C

OG

-fu

nctio

n (c

ente

r of

gr

avity

)

The

par

amet

ers

for

the

CO

G fu

nctio

n (c

alcu

latio

n of

cen

ter

of g

ravi

ty)

are

not s

et c

orre

ctly

.Ye

llow

ES

C W

arni

ng,

AB

S fu

lly a

vaila

ble,

E

SC

sw

itche

d of

f

• C

heck

the

rele

vant

EO

L pa

ram

eter

s an

d co

rrec

t the

m.

5230

00 -

23

= In

valid

P

aram

eter

s P

art 1

-

rese

rved

(23

)

Inva

lid P

aram

eter

S

ettin

g fo

r R

SC

-fu

nctio

n (r

oll s

tabi

lity

cont

rol)

Thi

s pa

ram

eter

failu

re is

set

if th

e fo

llow

ing

cond

ition

exi

sts:

- P

RD

stVe

hWith

Aw

d.va

lue

= 1

Yello

w E

SC

War

ning

, A

BS

fully

ava

ilabl

e,

ES

C s

witc

hed

off

• C

heck

the

rele

vant

EO

L pa

ram

eter

s an

d co

rrec

t the

m.

5230

00 -

28

= In

valid

P

aram

eter

s P

art 1

-

rese

rved

(28

)

Par

amet

er e

rror

of

supp

ly v

olta

ge le

vel

thre

shol

ds

It is

che

cked

if th

e th

resh

olds

for

the

diffe

rent

vo

ltage

leve

ls a

re in

cor

rect

ord

er.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• C

heck

the

rele

vant

EO

L pa

ram

eter

s an

d co

rrec

t the

m.

5230

00 -

29

= In

valid

P

aram

eter

s P

art 1

-

rese

rved

(29

)

Par

amet

er e

rror

of

acce

lera

tor

peda

l low

id

le s

witc

h th

resh

olds

It is

che

cked

if th

e th

resh

olds

for

the

hyst

eres

is

are

set c

orre

ctly

. The

sof

twar

e se

ts a

par

amet

er

erro

r w

hen

the

thre

shol

ds a

re n

ot in

the

follo

win

g or

der ‘

Thd

On

< T

hdO

ff’.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• C

heck

the

rele

vant

EO

L pa

ram

eter

s an

d co

rrec

t the

m.

5230

00 -

30

= In

valid

P

aram

eter

s P

art 1

-

rese

rved

(30

)

Par

amet

er e

rror

of

acce

lera

tor

peda

l po

sitio

n th

resh

olds

It is

che

cked

if th

e th

resh

olds

for

the

hyst

eres

is

are

set c

orre

ctly

. T

he s

oftw

are

sets

a p

aram

eter

er

ror

whe

n th

e th

resh

olds

are

not

in th

e fo

llow

ing

orde

r ‘T

hdO

ff <

Thd

On’

.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• C

heck

the

rele

vant

EO

L pa

ram

eter

s an

d co

rrec

t the

m.

5231

00 -

22

= S

afet

y M

onito

r - W

heel

Spe

ed

Sig

nals

- r

eser

ved

(22)

Saf

ety

Mon

itor

for W

heel

spee

d C

alcu

latio

n (F

ront

A

xle

Left)

A m

onito

r fa

ilure

of t

he r

elev

ant w

heel

spe

ed

calc

ulat

ion

is d

etec

ted

if:-

Cou

nter

val

ue is

0 a

nd w

heel

spe

ed v

alue

is n

ot

betw

een

0 m

/s a

nd 1

m/s

. -

Cou

nter

val

ue is

con

stan

t for

mor

e th

an 1

80 m

s an

d w

heel

spe

ed v

alue

is n

ot b

etw

een

0m/s

and

1

m/s

.-

Cou

nter

val

ue is

not

con

stan

t for

mor

e th

an

180

ms

and

not 0

and

whe

el s

peed

val

ue is

not

be

twee

n m

in_W

heel

spe

ed a

nd m

ax_W

heel

sp

eed.

Rem

ark:

The

mon

itor

(on/

off)

and

its

sens

ibili

ty

can

be c

hang

ed b

y a

para

met

er.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• S

afet

y M

onito

r ha

s de

tect

ed a

SW

-pro

blem

->

dow

nloa

d im

prov

ed S

W if

ava

ilabl

e.•

Con

tact

the

Mer

itor

OnT

rac™

Cus

tom

er C

all C

ente

r at

86

6-O

nTra

c1 (

668-

7221

).

4013180a

Page 69: Maintenance Manual MM-1719 Anti-Lock Braking System · PDF fileMaintenance Manual MM-1719 Anti-Lock Braking System (ABS) and Electronic Stability Control (ESC) For Modular Braking

5 SPN FMI Fault Codes

65Meritor WABCO Maintenance Manual MM-1719 (Issued 06-17)

Figure 5.50

DTC

SP

N F

MI

Failu

re D

etec

tion

Nam

eFa

ilure

Det

ectio

n D

escr

iptio

nW

arni

ng a

nd S

yste

m

Rea

ctio

nR

epai

r

5231

00 -

23

= S

afet

y M

onito

r - W

heel

Spe

ed

Sig

nals

- r

eser

ved

(23)

Saf

ety

Mon

itor

for W

heel

spee

d C

alcu

latio

n (F

ront

A

xle

Rig

ht)

A m

onito

r fa

ilure

of t

he r

elev

ant w

heel

spe

ed

calc

ulat

ion

is d

etec

ted

if:-

Cou

nter

val

ue is

0 a

nd w

heel

spe

ed v

alue

is n

ot

betw

een

0 m

/s a

nd 1

m/s

. -

Cou

nter

val

ue is

con

stan

t for

mor

e th

an 1

80 m

s an

d w

heel

spe

ed v

alue

is n

ot b

etw

een

0m/s

and

1

m/s

.-

Cou

nter

val

ue is

not

con

stan

t for

mor

e th

an

180

ms

and

not 0

and

whe

el s

peed

val

ue is

not

be

twee

n m

in_W

heel

spe

ed a

nd m

ax_W

heel

sp

eed.

Rem

ark:

The

mon

itor

(on/

off)

and

its

sens

ibili

ty

can

be c

hang

ed b

y a

para

met

er.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• S

afet

y M

onito

r ha

s de

tect

ed a

SW

-pro

blem

.

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

5231

00 -

24

= S

afet

y M

onito

r - W

heel

Spe

ed

Sig

nals

- r

eser

ved

(24)

Saf

ety

Mon

itor

for W

heel

spee

d C

alcu

latio

n (D

rive

Axl

e Le

ft)

A m

onito

r fa

ilure

of t

he r

elev

ant w

heel

spe

ed

calc

ulat

ion

is d

etec

ted

if:-

Cou

nter

val

ue is

0 a

nd w

heel

spe

ed v

alue

is n

ot

betw

een

0 m

/s a

nd 1

m/s

. -

Cou

nter

val

ue is

con

stan

t for

mor

e th

an 1

80 m

s an

d w

heel

spe

ed v

alue

is n

ot b

etw

een

0m/s

and

1

m/s

.-

Cou

nter

val

ue is

not

con

stan

t for

mor

e th

an

180

ms

and

not 0

and

whe

el s

peed

val

ue is

not

be

twee

n m

in_W

heel

spe

ed a

nd m

ax_W

heel

sp

eed.

Rem

ark:

The

mon

itor

(on/

off)

and

its

sens

ibili

ty

can

be c

hang

ed b

y a

para

met

er.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• S

afet

y M

onito

r ha

s de

tect

ed a

SW

-pro

blem

.

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

5231

00 -

25

= S

afet

y M

onito

r - W

heel

Spe

ed

Sig

nals

- r

eser

ved

(25)

Saf

ety

Mon

itor

for W

heel

spee

d C

alcu

latio

n (D

rive

Axl

e R

ight

)

A m

onito

r fa

ilure

of t

he r

elev

ant w

heel

spe

ed

calc

ulat

ion

is d

etec

ted

if:-

Cou

nter

val

ue is

0 a

nd w

heel

spe

ed v

alue

is n

ot

betw

een

0 m

/s a

nd 1

m/s

. -

Cou

nter

val

ue is

con

stan

t for

mor

e th

an 1

80 m

s an

d w

heel

spe

ed v

alue

is n

ot b

etw

een

0m/s

and

1

m/s

.-

Cou

nter

val

ue is

not

con

stan

t for

mor

e th

an

180

ms

and

not 0

and

whe

el s

peed

val

ue is

not

be

twee

n m

in_W

heel

spe

ed a

nd m

ax_W

heel

sp

eed.

Rem

ark:

The

mon

itor

(on/

off)

and

its

sens

ibili

ty

can

be c

hang

ed b

y a

para

met

er.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• S

afet

y M

onito

r ha

s de

tect

ed a

SW

-pro

blem

.

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

5231

00 -

26

= S

afet

y M

onito

r - W

heel

Spe

ed

Sig

nals

- r

eser

ved

(26)

Saf

ety

Mon

itor

for W

heel

spee

d C

alcu

latio

n (I

nter

med

iate

Axl

e Le

ft)

A m

onito

r fa

ilure

of t

he r

elev

ant w

heel

spe

ed

calc

ulat

ion

is d

etec

ted

if:-

Cou

nter

val

ue is

0 a

nd w

heel

spe

ed v

alue

is n

ot

betw

een

0 m

/s a

nd 1

m/s

. -

Cou

nter

val

ue is

con

stan

t for

mor

e th

an 1

80 m

s an

d w

heel

spe

ed v

alue

is n

ot b

etw

een

0m/s

and

1

m/s

.-

Cou

nter

val

ue is

not

con

stan

t for

mor

e th

an

180

ms

and

not 0

and

whe

el s

peed

val

ue is

not

be

twee

n m

in_W

heel

spe

ed a

nd m

ax_W

heel

sp

eed.

Rem

ark:

The

mon

itor

(on/

off)

and

its

sens

ibili

ty

can

be c

hang

ed b

y a

para

met

er.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• S

afet

y M

onito

r ha

s de

tect

ed a

SW

-pro

blem

.

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

4013181a

Page 70: Maintenance Manual MM-1719 Anti-Lock Braking System · PDF fileMaintenance Manual MM-1719 Anti-Lock Braking System (ABS) and Electronic Stability Control (ESC) For Modular Braking

5 SPN FMI Fault Codes

66 Meritor WABCO Maintenance Manual MM-1719 (Issued 06-17)

Figure 5.51

DTC

SP

N F

MI

Failu

re D

etec

tion

Nam

eFa

ilure

Det

ectio

n D

escr

iptio

nW

arni

ng a

nd S

yste

m

Rea

ctio

nR

epai

r

5231

00 -

27

= S

afet

y M

onito

r - W

heel

Spe

ed

Sig

nals

- r

eser

ved

(27)

Saf

ety

Mon

itor

for W

heel

spee

d C

alcu

latio

n (I

nter

med

iate

Axl

e R

ight

)

A m

onito

r fa

ilure

of t

he r

elev

ant w

heel

spe

ed

calc

ulat

ion

is d

etec

ted

if:-

Cou

nter

val

ue is

0 a

nd w

heel

spe

ed v

alue

is n

ot

betw

een

0 m

/s a

nd 1

m/s

. -

Cou

nter

val

ue is

con

stan

t for

mor

e th

an 1

80 m

s an

d w

heel

spe

ed v

alue

is n

ot b

etw

een

0m/s

and

1

m/s

.-

Cou

nter

val

ue is

not

con

stan

t for

mor

e th

an

180

ms

and

not 0

and

whe

el s

peed

val

ue is

not

be

twee

n m

in_W

heel

spe

ed a

nd m

ax_W

heel

sp

eed.

Rem

ark:

The

mon

itor

(on/

off)

and

its

sens

ibili

ty

can

be c

hang

ed b

y a

para

met

er.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• S

afet

y M

onito

r ha

s de

tect

ed a

SW

-pro

blem

.

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

5231

01 -

22

= S

afet

y M

onito

r -

AB

S F

unct

ion

- re

serv

ed (

22)

Saf

ety

Mon

itor

for

AB

S F

unct

ion

(Par

t 1)

The

AB

S M

onito

r sh

all p

reve

nt th

e A

BS

func

tion

from

act

ivat

ing

AB

S c

ontr

ol o

n an

y w

heel

with

out

nece

ssity

.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• S

afet

y M

onito

r ha

s de

tect

ed a

SW

-pro

blem

.

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

5231

01 -

23

= S

afet

y M

onito

r -

AB

S F

unct

ion

- re

serv

ed (

23)

Saf

ety

Mon

itor

for

AB

S F

unct

ion

(Par

t 2)

The

AB

S M

onito

r en

sure

s th

at A

BS

func

tion

shal

l not

sw

itch

off A

BS

con

trol

at t

he R

A w

ithou

t sw

itchi

ng o

ff A

BS

con

trol

at t

he F

A.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• S

afet

y M

onito

r ha

s de

tect

ed a

SW

-pro

blem

.

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

5231

02 -

22

= S

afet

y M

onito

r -

ATC

Fun

ctio

n -

rese

rved

(22

)

Saf

ety

Mon

itor

for

ATC

Fun

ctio

nT

his

safe

ty m

onito

r ch

ecks

the

corr

ect f

unct

ion

of

the

auto

mat

ic tr

actio

n co

ntro

l.Ye

llow

Driv

er W

arni

ng,

AB

S c

ompl

etel

y sw

itche

d of

f

• S

afet

y M

onito

r ha

s de

tect

ed a

SW

-pro

blem

.

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

5231

03 -

22

= S

afet

y M

onito

r -

RS

C F

unct

ion

- re

serv

ed (

22)

Saf

ety

Mon

itor

for

RS

C F

unct

ion

Thi

s sa

fety

mon

itor

chec

ks th

e co

rrec

t fun

ctio

n of

th

e ro

ll st

abili

ty c

ontr

ol.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• S

afet

y M

onito

r ha

s de

tect

ed a

SW

-pro

blem

.

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

5231

04 -

22

= S

afet

y M

onito

r - Y

C F

unct

ion

- re

serv

ed (

22)

Saf

ety

Mon

itor

for Y

C

Fun

ctio

nT

his

safe

ty m

onito

r ch

ecks

the

corr

ect f

unct

ion

of

the

yaw

con

trol

.Ye

llow

Driv

er W

arni

ng,

AB

S c

ompl

etel

y sw

itche

d of

f

• S

afet

y M

onito

r ha

s de

tect

ed a

SW

-pro

blem

.

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

5231

05 -

22

= S

afet

y M

onito

r -

AR

B F

unct

ion

- re

serv

ed (

22)

Saf

ety

Mon

itor

for

AR

B F

unct

ion

Thi

s sa

fety

mon

itor

chec

ks th

e co

rrec

t fun

ctio

n of

th

e an

ti-ro

ll br

ake.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• S

afet

y M

onito

r ha

s de

tect

ed a

SW

-pro

blem

.

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

5231

06 -

22

= S

afet

y M

onito

r -

XB

R F

unct

ion

- re

serv

ed (

22)

Saf

ety

Mon

itor

for

XB

R F

unct

ion

Thi

s sa

fety

mon

itor

chec

ks th

e co

rrec

t fun

ctio

n of

th

e ex

tern

al b

rake

req

uest

.Ye

llow

Driv

er W

arni

ng,

AB

S c

ompl

etel

y sw

itche

d of

f

• S

afet

y M

onito

r ha

s de

tect

ed a

SW

-pro

blem

.

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

5231

07 -

22

= S

afet

y M

onito

r -

BM

Fun

ctio

n -

rese

rved

(22

)

Saf

ety

Mon

itor

for

BM

F

unct

ion

Thi

s sa

fety

mon

itor

chec

ks th

e co

rrec

t fun

ctio

n of

th

e br

ake

man

agem

ent.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• S

afet

y M

onito

r ha

s de

tect

ed a

SW

-pro

blem

.

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

5231

08 -

22

= S

afet

y M

onito

r -

CS

C F

unct

ion

- re

serv

ed (

22)

Saf

ety

Mon

itor

for

CS

C F

unct

ion

Thi

s sa

fety

mon

itor

chec

ks th

e co

rrec

t fun

ctio

n of

th

e co

mbi

natio

n st

abili

ty c

ontr

ol.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• S

afet

y M

onito

r ha

s de

tect

ed a

SW

-pro

blem

.

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

4013182a

Page 71: Maintenance Manual MM-1719 Anti-Lock Braking System · PDF fileMaintenance Manual MM-1719 Anti-Lock Braking System (ABS) and Electronic Stability Control (ESC) For Modular Braking

5 SPN FMI Fault Codes

67Meritor WABCO Maintenance Manual MM-1719 (Issued 06-17)

Figure 5.52

DTC

SP

N F

MI

Failu

re D

etec

tion

Nam

eFa

ilure

Det

ectio

n D

escr

iptio

nW

arni

ng a

nd S

yste

m

Rea

ctio

nR

epai

r

5231

09 -

22

= S

afet

y M

onito

r -

Fric

tion

Bra

ke

Dec

ider

Fun

ctio

n -

rese

rved

(2

2)

Saf

ety

Mon

itor

for

Fric

tion

Bra

ke D

ecid

er

Fun

ctio

n

Thi

s sa

fety

mon

itor

chec

ks th

e co

rrec

t fun

ctio

n of

th

e fr

ictio

n br

ake

deci

der.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• S

afet

y M

onito

r ha

s de

tect

ed a

SW

-pro

blem

.

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

5231

10 -

22

= S

afet

y M

onito

r - V

alve

Com

bi

Fun

ctio

n -

rese

rved

(22

)

Saf

ety

Mon

itor

for

Valv

e C

ombi

Fun

ctio

n (P

art 1

a)

Thi

s sa

fety

mon

itor

chec

ks g

ener

ic s

yste

m

func

tions

(P

art 1

a/F

SR

_02)

. Che

ck m

axim

um

pres

sure

diff

eren

ce (

left/

right

) at

fron

t axl

e (a

t sp

eeds

hig

her

than

20

km/h

).T

SR

_02.

1: M

onito

r de

tect

s fa

ilure

if:

- A

ll th

ree

diff-

valv

es a

re p

ower

ed-o

ff fo

r a

time

T1=

2000

ms

befo

re th

ey a

re p

ower

ed-o

n,

- A

nd th

en a

ll di

ff-va

lves

rem

ain

in p

ower

ed-o

n st

ate

for T

2≤50

0 m

s,

- A

nd p

aral

lelly

dur

ing

time

span

T2,

the

fron

t axl

e le

ft an

d rig

ht in

let v

alve

s ar

e po

wer

ed (

clos

ed)

with

a ti

me

span

(no

t sim

ulta

neou

sly)

for

time

T3>

300

ms.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• S

afet

y M

onito

r ha

s de

tect

ed a

SW

-pro

blem

.

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

5231

10 -

23

= S

afet

y M

onito

r - V

alve

Com

bi

Fun

ctio

n -

rese

rved

(23

)

Saf

ety

Mon

itor

for

Valv

e C

ombi

Fun

ctio

n (P

art 1

b)

Thi

s sa

fety

mon

itor

chec

ks g

ener

ic s

yste

m

func

tions

(P

art 1

b/F

SR

_02)

. Che

ck m

axim

um

pres

sure

diff

eren

ce (

left/

right

) at

fron

t axl

e (a

t sp

eeds

hig

her

than

20

km/h

).T

SR

_02.

2: M

onito

r de

tect

s fa

ilure

if:

- The

fron

t axl

e ou

tlet v

alve

rem

ains

pow

ered

-on

(ope

n) a

nd th

e in

let v

alve

is p

ower

ed-o

ff (o

pen)

fo

r tim

e T

4≥10

0 m

s.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• S

afet

y M

onito

r ha

s de

tect

ed a

SW

-pro

blem

.

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

5231

10 -

24

= S

afet

y M

onito

r - V

alve

Com

bi

Fun

ctio

n -

rese

rved

(24

)

Saf

ety

Mon

itor

for

Valv

e C

ombi

Fun

ctio

n (P

art 2

)

Thi

s sa

fety

mon

itor

chec

ks g

ener

ic s

yste

m

func

tions

(P

art 2

/FS

R_1

6). F

ault

dete

ctio

n if

FA

and

RA

are

bra

ked

sudd

enly

with

out T

CV.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• S

afet

y M

onito

r ha

s de

tect

ed a

SW

-pro

blem

.

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

5231

10 -

25

= S

afet

y M

onito

r - V

alve

Com

bi

Fun

ctio

n -

rese

rved

(25

)

Saf

ety

Mon

itor

for

Valv

e C

ombi

Fun

ctio

n (P

art 3

)

Thi

s sa

fety

mon

itor

chec

ks g

ener

ic s

yste

m

func

tions

(P

art 3

/FS

R_2

1.2)

. Mon

itor

shal

l sw

itch

to s

afe

stat

e if

AB

S v

alve

act

ivat

ion

is d

one

with

out r

eque

st fr

om th

e de

cide

r.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• S

afet

y M

onito

r ha

s de

tect

ed a

SW

-pro

blem

.

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

5231

10 -

26

= S

afet

y M

onito

r - V

alve

Com

bi

Fun

ctio

n -

rese

rved

(26

)

Saf

ety

Mon

itor

for

Valv

e C

ombi

Fun

ctio

n (P

art 4

)

Thi

s sa

fety

mon

itor

chec

ks g

ener

ic s

yste

m

func

tions

(P

art 4

/FS

R_3

5). P

laus

ibili

ty c

heck

of

brak

e va

lve

cont

rol t

o av

oid

sudd

en b

raki

ng (

10

bar/

sec)

of t

ruck

and

trai

ler.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• S

afet

y M

onito

r ha

s de

tect

ed a

SW

-pro

blem

.

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

5231

10 -

27

= S

afet

y M

onito

r - V

alve

Com

bi

Fun

ctio

n -

rese

rved

(27

)

Saf

ety

Mon

itor

for

Valv

e C

ombi

Fun

ctio

n (P

art 5

a)

Thi

s sa

fety

mon

itor

chec

ks g

ener

ic s

yste

m

func

tions

(P

art 5

a/F

SR

_43)

. Che

ck m

axim

um

pres

sure

diff

eren

ce le

ft/rig

ht a

t rea

r ax

leT

SR

_43.

1: M

onito

r de

tect

s fa

ilure

if:

- A

ll th

ree

diff-

valv

es a

re p

ower

ed-o

ff fo

r a

time

T1=

2000

ms

befo

re th

ey a

re p

ower

ed-o

n,

- A

nd th

en a

ll di

ff-va

lves

rem

ain

in p

ower

ed-o

n st

ate

for T

2≤50

0 m

s,

- A

nd p

aral

lelly

dur

ing

time

span

T2,

the

rear

ax

le le

ft an

d rig

ht in

let v

alve

s ar

e po

wer

ed w

ith

diffe

rent

vol

tage

s fo

r tim

e T

3>30

0 m

s.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• S

afet

y M

onito

r ha

s de

tect

ed a

SW

-pro

blem

.

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

4013183a

Page 72: Maintenance Manual MM-1719 Anti-Lock Braking System · PDF fileMaintenance Manual MM-1719 Anti-Lock Braking System (ABS) and Electronic Stability Control (ESC) For Modular Braking

5 SPN FMI Fault Codes

68 Meritor WABCO Maintenance Manual MM-1719 (Issued 06-17)

Figure 5.53

DTC

SP

N F

MI

Failu

re D

etec

tion

Nam

eFa

ilure

Det

ectio

n D

escr

iptio

nW

arni

ng a

nd S

yste

m

Rea

ctio

nR

epai

r

5231

10 -

28

= S

afet

y M

onito

r - V

alve

Com

bi

Fun

ctio

n -

rese

rved

(28

)

Saf

ety

Mon

itor

for

Valv

e C

ombi

Fun

ctio

n (P

art 5

b)

Thi

s sa

fety

mon

itor

chec

ks g

ener

ic s

yste

m

func

tions

(P

art 5

b/F

SR

_43)

. Che

ck m

axim

um

pres

sure

diff

eren

ce le

ft/rig

ht a

t rea

r ax

le.

TS

R_4

3.2:

Mon

itor

dete

cts

failu

re if

: - T

he r

ear

axle

out

let v

alve

rem

ains

pow

ered

-on

(ope

n) a

nd th

e in

let v

alve

is p

ower

ed-o

ff (o

pen)

fo

r tim

e T

4≥10

0 m

s.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• S

afet

y M

onito

r ha

s de

tect

ed a

SW

-pro

blem

->

dow

nloa

d im

prov

ed S

W if

ava

ilabl

e.•

Con

tact

the

Mer

itor

OnT

rac™

Cus

tom

er C

all C

ente

r at

86

6-O

nTra

c1 (

668-

7221

).

5231

10 -

29

= S

afet

y M

onito

r - V

alve

Com

bi

Fun

ctio

n -

rese

rved

(29

)

Saf

ety

Mon

itor

for

Valv

e C

ombi

Fun

ctio

n (P

art 6

)

Thi

s sa

fety

mon

itor

chec

ks g

ener

ic s

yste

m

func

tions

(P

art 6

/FS

R_4

7.1)

. Val

ve c

ontr

ol m

onito

r sh

all c

heck

if th

e w

hole

rea

r ax

le is

blo

cked

and

at

leas

t 1 fr

ont w

heel

is n

ot b

lock

ed. I

n th

is c

ase,

th

e m

onito

r sh

all a

lso

switc

h of

f the

AB

S c

ontr

ol

on fr

ont a

xle.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• S

afet

y M

onito

r ha

s de

tect

ed a

SW

-pro

blem

->

dow

nloa

d im

prov

ed S

W if

ava

ilabl

e.•

Con

tact

the

Mer

itor

OnT

rac™

Cus

tom

er C

all C

ente

r at

86

6-O

nTra

c1 (

668-

7221

).

5231

10 -

30

= S

afet

y M

onito

r - V

alve

Com

bi

Fun

ctio

n -

rese

rved

(30

)

Saf

ety

Mon

itor

for

Valv

e C

ombi

Fun

ctio

n (P

art 7

)

Thi

s sa

fety

mon

itor

chec

ks g

ener

ic s

yste

m

func

tions

(P

art 7

/FS

R_4

9). M

onito

ring

of s

witc

hing

O

N o

f one

or

mor

e A

BS

-IV

(O

V s

witc

hed

OF

F)

for

a tim

e lo

nger

than

100

sec

onds

. (P

ress

ure

bloc

ked

in w

heel

->

over

heat

ing.

)

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• S

afet

y M

onito

r ha

s de

tect

ed a

SW

-pro

blem

->

dow

nloa

d im

prov

ed S

W if

ava

ilabl

e.•

Con

tact

the

Mer

itor

OnT

rac™

Cus

tom

er C

all C

ente

r at

86

6-O

nTra

c1 (

668-

7221

).

5231

10 -

31

= S

afet

y M

onito

r - V

alve

Com

bi

Fun

ctio

n -

cond

ition

exi

sts

Saf

ety

Mon

itor

for

Valv

e C

ombi

Fun

ctio

n (P

art 8

a)

Thi

s sa

fety

mon

itor

chec

ks g

ener

ic s

yste

m

func

tions

(P

art 8

a/F

SR

_139

). M

onito

r de

tect

s fa

ilure

if:

- B

oth

diff-

valv

es a

nd a

ll A

BS

inle

t val

ves

are

pow

ered

-off

for

a tim

e T

1=20

00 m

s,

- A

nd th

en w

ithin

a ti

me

span

of T

2=10

0 m

s,

FA+T

CV

diff

val

ve, R

A d

iff v

alve

and

FA

and

RA

A

BS

inle

t val

ve a

re p

ower

ed-o

n w

hile

AB

S T

CV

va

lve

rem

ains

pow

ered

-off,

-

And

afte

r th

at, f

or ti

me

T3=

500

ms,

the

sam

e st

ate

is m

aint

aine

d.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• S

afet

y M

onito

r ha

s de

tect

ed a

SW

-pro

blem

->

dow

nloa

d im

prov

ed S

W if

ava

ilabl

e.•

Con

tact

the

Mer

itor

OnT

rac™

Cus

tom

er C

all C

ente

r at

86

6-O

nTra

c1 (

668-

7221

).

5231

11 -

22

= S

afet

y M

onito

r - V

alve

Com

bi

Fun

ctio

n (C

ontin

uatio

n) -

re

serv

ed (

22)

Saf

ety

Mon

itor

for

Valv

e C

ombi

Fun

ctio

n (P

art 8

b)

Thi

s sa

fety

mon

itor

chec

ks g

ener

ic s

yste

m

func

tions

(P

art 8

b/F

SR

_139

). M

onito

r de

tect

s fa

ilure

if:

- B

oth

diff-

valv

es a

nd a

ll A

BS

inle

t val

ves

are

pow

ered

-off

for

a tim

e T

1=20

00 m

s,

- A

nd th

en w

ithin

a ti

me

span

of T

2=10

0 m

s,

FA+T

CV

diff

val

ve a

nd F

A A

BS

inle

t val

ve a

re

pow

ered

-on,

whi

le A

BS

TC

V v

alve

rem

ains

po

wer

ed-o

ff,

- A

nd a

fter

that

, for

tim

e T

3=50

0 m

s, th

e sa

me

stat

e is

mai

ntai

ned.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• S

afet

y M

onito

r ha

s de

tect

ed a

SW

-pro

blem

->

dow

nloa

d im

prov

ed S

W if

ava

ilabl

e.•

Con

tact

the

Mer

itor

OnT

rac™

Cus

tom

er C

all C

ente

r at

86

6-O

nTra

c1 (

668-

7221

).

5231

12 -

22

= S

afet

y M

onito

r -

Ref

eren

ce S

peed

-

rese

rved

(22

)

Saf

ety

Mon

itor

for

Whe

el R

efer

ence

S

peed

Thi

s sa

fety

mon

itor

chec

ks th

e co

rrec

t fun

ctio

n of

th

e W

heel

Ref

eren

ce S

peed

.Ye

llow

Driv

er W

arni

ng,

AB

S c

ompl

etel

y sw

itche

d of

f

• S

afet

y M

onito

r ha

s de

tect

ed a

SW

-pro

blem

->

dow

nloa

d im

prov

ed S

W if

ava

ilabl

e.•

Con

tact

the

Mer

itor

OnT

rac™

Cus

tom

er C

all C

ente

r at

86

6-O

nTra

c1 (

668-

7221

).

5231

12 -

23

= S

afet

y M

onito

r -

Ref

eren

ce S

peed

-

rese

rved

(23

)

Saf

ety

Mon

itor

for

Vehi

cle

Ref

eren

ce

Spe

ed

Thi

s sa

fety

mon

itor

chec

ks th

e co

rrec

t fun

ctio

n of

th

e W

heel

Ref

eren

ce S

peed

.Ye

llow

Driv

er W

arni

ng,

AB

S c

ompl

etel

y sw

itche

d of

f

• S

afet

y M

onito

r ha

s de

tect

ed a

SW

-pro

blem

->

dow

nloa

d im

prov

ed S

W if

ava

ilabl

e.•

Con

tact

the

Mer

itor

OnT

rac™

Cus

tom

er C

all C

ente

r at

86

6-O

nTra

c1 (

668-

7221

).

5231

12 -

24

= S

afet

y M

onito

r -

Ref

eren

ce S

peed

-

rese

rved

(24

)

Saf

ety

Mon

itor

for

AB

S R

efer

ence

S

peed

Thi

s sa

fety

mon

itor

chec

ks th

e co

rrec

t fun

ctio

n of

th

e W

heel

Ref

eren

ce S

peed

.Ye

llow

Driv

er W

arni

ng,

AB

S c

ompl

etel

y sw

itche

d of

f

• S

afet

y M

onito

r ha

s de

tect

ed a

SW

-pro

blem

->

dow

nloa

d im

prov

ed S

W if

ava

ilabl

e.•

Con

tact

the

Mer

itor

OnT

rac™

Cus

tom

er C

all C

ente

r at

86

6-O

nTra

c1 (

668-

7221

).

4013184a

Page 73: Maintenance Manual MM-1719 Anti-Lock Braking System · PDF fileMaintenance Manual MM-1719 Anti-Lock Braking System (ABS) and Electronic Stability Control (ESC) For Modular Braking

5 SPN FMI Fault Codes

69Meritor WABCO Maintenance Manual MM-1719 (Issued 06-17)

Figure 5.54D

TC S

PN

FM

IFa

ilure

Det

ectio

n N

ame

Failu

re D

etec

tion

Des

crip

tion

War

ning

and

Sys

tem

R

eact

ion

Rep

air

5231

14 -

22

= S

afet

y M

onito

r -

Ste

erin

g A

ngle

S

enso

r -

rese

rved

(22

)

Saf

ety

Mon

itor

for

Ste

erin

g A

ngle

Thi

s sa

fety

mon

itor

chec

ks th

e co

rrec

t fun

ctio

n of

th

e S

teer

ing

Ang

le S

enso

r.Ye

llow

Driv

er W

arni

ng,

AB

S c

ompl

etel

y sw

itche

d of

f

• S

afet

y M

onito

r ha

s de

tect

ed a

SW

-pro

blem

->

dow

nloa

d im

prov

ed S

W if

ava

ilabl

e.•

Con

tact

the

Mer

itor

OnT

rac™

Cus

tom

er C

all C

ente

r at

86

6-O

nTra

c1 (

668-

7221

).

5231

15 -

22

= S

afet

y M

onito

r - Y

aw R

ate

- re

serv

ed (

22)

Saf

ety

Mon

itor

for Y

aw

Rat

eT

his

safe

ty m

onito

r ch

ecks

the

corr

ect f

unct

ion

of

the

Yaw

Rat

e.Ye

llow

Driv

er W

arni

ng,

AB

S c

ompl

etel

y sw

itche

d of

f

• S

afet

y M

onito

r ha

s de

tect

ed a

SW

-pro

blem

->

dow

nloa

d im

prov

ed S

W if

ava

ilabl

e.•

Con

tact

the

Mer

itor

OnT

rac™

Cus

tom

er C

all C

ente

r at

86

6-O

nTra

c1 (

668-

7221

).

5231

16 -

22

= S

afet

y M

onito

r -

Late

ral

Acc

eler

atio

n -

rese

rved

(22

)

Saf

ety

Mon

itor

for

Late

ral A

ccel

erat

ion

Thi

s sa

fety

mon

itor

chec

ks th

e co

rrec

t fun

ctio

n of

th

e la

tera

l acc

eler

atio

n.Ye

llow

Driv

er W

arni

ng,

AB

S c

ompl

etel

y sw

itche

d of

f

• S

afet

y M

onito

r ha

s de

tect

ed a

SW

-pro

blem

->

dow

nloa

d im

prov

ed S

W if

ava

ilabl

e.•

Con

tact

the

Mer

itor

OnT

rac™

Cus

tom

er C

all C

ente

r at

86

6-O

nTra

c1 (

668-

7221

).

5231

17 -

22

= S

afet

y M

onito

r - T

arge

t Yaw

Rat

e -

rese

rved

(22

)

Saf

ety

Mon

itor

for

Targ

et Y

aw R

ate

Thi

s sa

fety

mon

itor

chec

ks th

e co

rrec

t fun

ctio

n of

th

e ta

rget

yaw

rate

.Ye

llow

Driv

er W

arni

ng,

AB

S c

ompl

etel

y sw

itche

d of

f

• S

afet

y M

onito

r ha

s de

tect

ed a

SW

-pro

blem

->

dow

nloa

d im

prov

ed S

W if

ava

ilabl

e.•

Con

tact

the

Mer

itor

OnT

rac™

Cus

tom

er C

all C

ente

r at

86

6-O

nTra

c1 (

668-

7221

).

5231

18 -

22

= S

afet

y M

onito

r -

ES

C S

enso

r E

xter

nal -

res

erve

d (2

2)

Saf

ety

Mon

itor

for

ES

C S

enso

r E

xter

nal

(Lat

eral

Acc

eler

atio

n)

Thi

s sa

fety

mon

itor

chec

ks th

e co

rrec

t fun

ctio

n of

th

e E

SC

Sen

sor

Ext

erna

l (La

tera

l Acc

eler

atio

n).

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• S

afet

y M

onito

r ha

s de

tect

ed a

SW

-pro

blem

->

dow

nloa

d im

prov

ed S

W if

ava

ilabl

e.•

Con

tact

the

Mer

itor

OnT

rac™

Cus

tom

er C

all C

ente

r at

86

6-O

nTra

c1 (

668-

7221

).

5231

18 -

23

= S

afet

y M

onito

r -

ES

C S

enso

r E

xter

nal -

res

erve

d (2

3)

Saf

ety

Mon

itor

for

ES

C S

enso

r E

xter

nal

(Yaw

Rat

e)

Thi

s sa

fety

mon

itor

chec

ks th

e co

rrec

t fun

ctio

n of

th

e E

SC

Sen

sor

Ext

erna

l (Ya

w R

ate)

.Ye

llow

Driv

er W

arni

ng,

AB

S c

ompl

etel

y sw

itche

d of

f

• S

afet

y M

onito

r ha

s de

tect

ed a

SW

-pro

blem

->

dow

nloa

d im

prov

ed S

W if

ava

ilabl

e.•

Con

tact

the

Mer

itor

OnT

rac™

Cus

tom

er C

all C

ente

r at

86

6-O

nTra

c1 (

668-

7221

).

5231

19 -

22

= S

afet

y M

onito

r -

Req

uest

Ble

nder

-

rese

rved

(22

)

Saf

ety

Mon

itor

for

Req

uest

Ble

nder

F

unct

ion

Thi

s sa

fety

mon

itor

chec

ks th

e co

rrec

t fun

ctio

n of

th

e re

ques

t ble

nder

.Ye

llow

Driv

er W

arni

ng,

AB

S c

ompl

etel

y sw

itche

d of

f

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

5242

70 -

0 =

EE

PR

OM

-

NV

Mem

Che

cksu

m fa

ilure

(P

art 1

) -

data

val

id, b

ut

abov

e no

rmal

ope

ratin

g ra

nge

(mos

t sev

ere

leve

l)

Che

cksu

m E

rror

of

Par

amet

er g

roup

‘A

ccel

erat

or P

edal

A fa

ulty

che

cksu

m w

as d

etec

ted

in th

e re

leva

nt

para

met

er g

roup

in th

e no

n-vo

latil

e m

emor

y (E

EP

RO

M).

Rem

ark:

Thi

s ch

ecks

um is

inte

rnal

ly c

alcu

late

d by

th

e so

ftwar

e af

ter

the

para

met

ers

wer

e tra

nsm

itted

to

the

EE

PR

OM

.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

5242

70 -

1 =

EE

PR

OM

-

NV

Mem

Che

cksu

m fa

ilure

(P

art 1

) -

data

val

id, b

ut

belo

w n

orm

al o

pera

ting

rang

e (m

ost s

ever

e le

vel)

Che

cksu

m E

rror

of

Par

amet

er g

roup

‘A

ntib

lock

ing

Sys

tem

A fa

ulty

che

cksu

m w

as d

etec

ted

in th

e re

leva

nt

para

met

er g

roup

in th

e no

n-vo

latil

e m

emor

y (E

EP

RO

M).

Rem

ark:

Thi

s ch

ecks

um is

inte

rnal

ly c

alcu

late

d by

th

e so

ftwar

e af

ter

the

para

met

ers

wer

e tra

nsm

itted

to

the

EE

PR

OM

.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

5242

70 -

2 =

EE

PR

OM

-

NV

Mem

Che

cksu

m fa

ilure

(P

art 1

) -

data

err

atic

, in

term

itten

t or

inco

rrec

t

Che

cksu

m E

rror

of

Par

amet

er g

roup

‘A

utom

atic

Tra

ctio

n C

ontr

ol’

A fa

ulty

che

cksu

m w

as d

etec

ted

in th

e re

leva

nt

para

met

er g

roup

in th

e no

n-vo

latil

e m

emor

y (E

EP

RO

M).

Rem

ark:

Thi

s ch

ecks

um is

inte

rnal

ly c

alcu

late

d by

th

e so

ftwar

e af

ter

the

para

met

ers

wer

e tra

nsm

itted

to

the

EE

PR

OM

.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

5242

70 -

3 =

EE

PR

OM

-

NV

Mem

Che

cksu

m fa

ilure

(P

art 1

) -

volta

ge a

bove

no

rmal

or

shor

ted

high

Che

cksu

m E

rror

of

Par

amet

er g

roup

‘Axl

e C

onfig

urat

ion’

A fa

ulty

che

cksu

m w

as d

etec

ted

in th

e re

leva

nt

para

met

er g

roup

in th

e no

n-vo

latil

e m

emor

y (E

EP

RO

M).

Rem

ark:

Thi

s ch

ecks

um is

inte

rnal

ly c

alcu

late

d by

th

e so

ftwar

e af

ter

the

para

met

ers

wer

e tra

nsm

itted

to

the

EE

PR

OM

.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

4013185a

Page 74: Maintenance Manual MM-1719 Anti-Lock Braking System · PDF fileMaintenance Manual MM-1719 Anti-Lock Braking System (ABS) and Electronic Stability Control (ESC) For Modular Braking

5 SPN FMI Fault Codes

70 Meritor WABCO Maintenance Manual MM-1719 (Issued 06-17)

Figure 5.55

DTC

SP

N F

MI

Failu

re D

etec

tion

Nam

eFa

ilure

Det

ectio

n D

escr

iptio

nW

arni

ng a

nd S

yste

m

Rea

ctio

nR

epai

r

5242

70 -

4 =

EE

PR

OM

-

NV

Mem

Che

cksu

m fa

ilure

(P

art 1

) -

volta

ge b

elow

no

rmal

or

shor

ted

low

Che

cksu

m E

rror

of

Par

amet

er g

roup

‘B

rake

Con

trol

A

ssig

nmen

t AB

S’

A fa

ulty

che

cksu

m w

as d

etec

ted

in th

e re

leva

nt

para

met

er g

roup

in th

e no

n-vo

latil

e m

emor

y (E

EP

RO

M).

Rem

ark:

Thi

s ch

ecks

um is

inte

rnal

ly c

alcu

late

d by

th

e so

ftwar

e af

ter

the

para

met

ers

wer

e tra

nsm

itted

to

the

EE

PR

OM

.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

5242

70 -

5 =

EE

PR

OM

-

NV

Mem

Che

cksu

m fa

ilure

(P

art 1

) -

curr

ent b

elow

no

rmal

or

open

circ

uit

Che

cksu

m E

rror

of

Par

amet

er g

roup

‘B

rake

Ped

al’

A fa

ulty

che

cksu

m w

as d

etec

ted

in th

e re

leva

nt

para

met

er g

roup

in th

e no

n-vo

latil

e m

emor

y (E

EP

RO

M).

Rem

ark:

Thi

s ch

ecks

um is

inte

rnal

ly c

alcu

late

d by

th

e so

ftwar

e af

ter

the

para

met

ers

wer

e tra

nsm

itted

to

the

EE

PR

OM

.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

5242

70 -

6 =

EE

PR

OM

-

NV

Mem

Che

cksu

m fa

ilure

(P

art 1

) -

curr

ent a

bove

no

rmal

or

grou

nded

circ

uit

Che

cksu

m E

rror

of

Par

amet

er g

roup

‘D

eriv

ed P

aram

eter

A fa

ulty

che

cksu

m w

as d

etec

ted

in th

e re

leva

nt

para

met

er g

roup

in th

e no

n-vo

latil

e m

emor

y (E

EP

RO

M).

Rem

ark:

Thi

s ch

ecks

um is

inte

rnal

ly c

alcu

late

d by

th

e so

ftwar

e af

ter

the

para

met

ers

wer

e tra

nsm

itted

to

the

EE

PR

OM

.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

5242

70 -

7 =

EE

PR

OM

-

NV

Mem

Che

cksu

m fa

ilure

(P

art 1

) - m

echa

nica

l sys

tem

no

t res

pond

ing

corr

ectly

or

out o

f adj

ustm

ent

Che

cksu

m E

rror

of

Par

amet

er g

roup

‘D

iffer

entia

l Slip

C

ontr

ol’

A fa

ulty

che

cksu

m w

as d

etec

ted

in th

e re

leva

nt

para

met

er g

roup

in th

e no

n-vo

latil

e m

emor

y (E

EP

RO

M).

Rem

ark:

Thi

s ch

ecks

um is

inte

rnal

ly c

alcu

late

d by

th

e so

ftwar

e af

ter

the

para

met

ers

wer

e tra

nsm

itted

to

the

EE

PR

OM

.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

5242

70 -

8 =

EE

PR

OM

-

NV

Mem

Che

cksu

m

failu

re (

Par

t 1)

- ab

norm

al

freq

uenc

y, p

ulse

wid

th o

r pe

riod

Che

cksu

m E

rror

of

Par

amet

er g

roup

‘D

rag

Torq

ue C

ontr

ol’

A fa

ulty

che

cksu

m w

as d

etec

ted

in th

e re

leva

nt

para

met

er g

roup

in th

e no

n-vo

latil

e m

emor

y (E

EP

RO

M).

Rem

ark:

Thi

s ch

ecks

um is

inte

rnal

ly c

alcu

late

d by

th

e so

ftwar

e af

ter

the

para

met

ers

wer

e tra

nsm

itted

to

the

EE

PR

OM

.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

5242

70 -

9 =

EE

PR

OM

-

NV

Mem

Che

cksu

m fa

ilure

(P

art 1

) -

abno

rmal

upd

ate

rate

Che

cksu

m E

rror

of

Par

amet

er g

roup

‘D

rive

Trai

n’

A fa

ulty

che

cksu

m w

as d

etec

ted

in th

e re

leva

nt

para

met

er g

roup

in th

e no

n-vo

latil

e m

emor

y (E

EP

RO

M).

Rem

ark:

Thi

s ch

ecks

um is

inte

rnal

ly c

alcu

late

d by

th

e so

ftwar

e af

ter

the

para

met

ers

wer

e tra

nsm

itted

to

the

EE

PR

OM

.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

5242

70 -

10

= E

EP

RO

M -

N

VM

em C

heck

sum

failu

re

(Par

t 1)

- ab

norm

al ra

te o

f ch

ange

Che

cksu

m E

rror

of

Par

amet

er g

roup

‘E

lect

roni

c B

rake

Li

mita

tion’

A fa

ulty

che

cksu

m w

as d

etec

ted

in th

e re

leva

nt

para

met

er g

roup

in th

e no

n-vo

latil

e m

emor

y (E

EP

RO

M).

Rem

ark:

Thi

s ch

ecks

um is

inte

rnal

ly c

alcu

late

d by

th

e so

ftwar

e af

ter

the

para

met

ers

wer

e tra

nsm

itted

to

the

EE

PR

OM

.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

5242

70 -

11

= E

EP

RO

M -

N

VM

em C

heck

sum

failu

re

(Par

t 1)

- fa

ilure

mod

e no

t id

entifi

able

/roo

t cau

se n

ot

know

n

Che

cksu

m E

rror

of

Par

amet

er

grou

p ‘In

terfa

ce

Con

figur

atio

n’

A fa

ulty

che

cksu

m w

as d

etec

ted

in th

e re

leva

nt

para

met

er g

roup

in th

e no

n-vo

latil

e m

emor

y (E

EP

RO

M).

Rem

ark:

Thi

s ch

ecks

um is

inte

rnal

ly c

alcu

late

d by

th

e so

ftwar

e af

ter

the

para

met

ers

wer

e tra

nsm

itted

to

the

EE

PR

OM

.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

4013186a

Page 75: Maintenance Manual MM-1719 Anti-Lock Braking System · PDF fileMaintenance Manual MM-1719 Anti-Lock Braking System (ABS) and Electronic Stability Control (ESC) For Modular Braking

5 SPN FMI Fault Codes

71Meritor WABCO Maintenance Manual MM-1719 (Issued 06-17)

Figure 5.56

DTC

SP

N F

MI

Failu

re D

etec

tion

Nam

eFa

ilure

Det

ectio

n D

escr

iptio

nW

arni

ng a

nd S

yste

m

Rea

ctio

nR

epai

r

5242

70 -

12

= E

EP

RO

M -

N

VM

em C

heck

sum

failu

re

(Par

t 1)

- ba

d in

telli

gent

de

vice

or

com

pone

nt

Che

cksu

m E

rror

of

Par

amet

er g

roup

‘M

ass

Cal

cula

tion’

A fa

ulty

che

cksu

m w

as d

etec

ted

in th

e re

leva

nt

para

met

er g

roup

in th

e no

n-vo

latil

e m

emor

y (E

EP

RO

M).

Rem

ark:

Thi

s ch

ecks

um is

inte

rnal

ly c

alcu

late

d by

th

e so

ftwar

e af

ter

the

para

met

ers

wer

e tra

nsm

itted

to

the

EE

PR

OM

.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

5242

70 -

13

= E

EP

RO

M -

N

VM

em C

heck

sum

failu

re

(Par

t 1)

- ou

t of c

alib

ratio

n

Che

cksu

m E

rror

of

Par

amet

er g

roup

‘S

yste

m C

onfig

urat

ion’

A fa

ulty

che

cksu

m w

as d

etec

ted

in th

e re

leva

nt

para

met

er g

roup

in th

e no

n-vo

latil

e m

emor

y (E

EP

RO

M).

Rem

ark:

Thi

s ch

ecks

um is

inte

rnal

ly c

alcu

late

d by

th

e so

ftwar

e af

ter

the

para

met

ers

wer

e tra

nsm

itted

to

the

EE

PR

OM

.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

5242

70 -

14

= E

EP

RO

M -

N

VM

em C

heck

sum

failu

re

(Par

t 1)

- sp

ecia

l ins

truc

tions

Che

cksu

m E

rror

of

Par

amet

er g

roup

‘Tire

S

ize

Com

pens

atio

n’

A fa

ulty

che

cksu

m w

as d

etec

ted

in th

e re

leva

nt

para

met

er g

roup

in th

e no

n-vo

latil

e m

emor

y (E

EP

RO

M).

Rem

ark:

Thi

s ch

ecks

um is

inte

rnal

ly c

alcu

late

d by

th

e so

ftwar

e af

ter

the

para

met

ers

wer

e tra

nsm

itted

to

the

EE

PR

OM

.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

5242

70 -

15

= E

EP

RO

M -

N

VM

em C

heck

sum

failu

re

(Par

t 1)

- da

ta v

alid

, but

ab

ove

norm

al o

pera

ting

rang

e (le

ast s

ever

e le

vel)

Che

cksu

m E

rror

of

Par

amet

er g

roup

‘Tire

S

ize

Com

pens

atio

n/

Sto

rage

A fa

ulty

che

cksu

m w

as d

etec

ted

in th

e re

leva

nt

para

met

er g

roup

in th

e no

n-vo

latil

e m

emor

y (E

EP

RO

M).

Rem

ark:

Thi

s ch

ecks

um is

inte

rnal

ly c

alcu

late

d by

th

e so

ftwar

e af

ter

the

para

met

ers

wer

e tra

nsm

itted

to

the

EE

PR

OM

.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

5242

70 -

16

= E

EP

RO

M -

N

VM

em C

heck

sum

failu

re

(Par

t 1)

- da

ta v

alid

, but

ab

ove

norm

al o

pera

ting

rang

e (m

oder

atel

y se

vere

le

vel)

Che

cksu

m E

rror

of

Par

amet

er g

roup

‘T

otal

Veh

icle

C

onfig

urat

ion’

A fa

ulty

che

cksu

m w

as d

etec

ted

in th

e re

leva

nt

para

met

er g

roup

in th

e no

n-vo

latil

e m

emor

y (E

EP

RO

M).

Rem

ark:

Thi

s ch

ecks

um is

inte

rnal

ly c

alcu

late

d by

th

e so

ftwar

e af

ter

the

para

met

ers

wer

e tra

nsm

itted

to

the

EE

PR

OM

.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

5242

70 -

17

= E

EP

RO

M -

N

VM

em C

heck

sum

failu

re

(Par

t 1)

- da

ta v

alid

, but

be

low

nor

mal

ope

ratin

g ra

nge

(leas

t sev

ere

leve

l)

Che

cksu

m E

rror

of

Par

amet

er g

roup

‘Yaw

R

ate

Con

trol

Sto

rage

A fa

ulty

che

cksu

m w

as d

etec

ted

in th

e re

leva

nt

para

met

er g

roup

in th

e no

n-vo

latil

e m

emor

y (E

EP

RO

M).

Rem

ark:

Thi

s ch

ecks

um is

inte

rnal

ly c

alcu

late

d by

th

e so

ftwar

e af

ter

the

para

met

ers

wer

e tra

nsm

itted

to

the

EE

PR

OM

.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

5242

70 -

18

= E

EP

RO

M -

N

VM

em C

heck

sum

failu

re

(Par

t 1)

- da

ta v

alid

, but

be

low

nor

mal

ope

ratin

g ra

nge

(mod

erat

ely

seve

re

leve

l)

Che

cksu

m E

rror

of

Par

amet

er g

roup

‘D

ecel

erat

ion

Con

trol

A

BS

A fa

ulty

che

cksu

m w

as d

etec

ted

in th

e re

leva

nt

para

met

er g

roup

in th

e no

n-vo

latil

e m

emor

y (E

EP

RO

M).

Rem

ark:

Thi

s ch

ecks

um is

inte

rnal

ly c

alcu

late

d by

th

e so

ftwar

e af

ter

the

para

met

ers

wer

e tra

nsm

itted

to

the

EE

PR

OM

.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

5242

70 -

19

= E

EP

RO

M -

N

VM

em C

heck

sum

failu

re

(Par

t 1)

- re

ceiv

ed n

etw

ork

data

in e

rror

Che

cksu

m E

rror

of

Par

amet

er g

roup

‘Hill

S

tart

Aid

A fa

ulty

che

cksu

m w

as d

etec

ted

in th

e re

leva

nt

para

met

er g

roup

in th

e no

n-vo

latil

e m

emor

y (E

EP

RO

M).

Rem

ark:

Thi

s ch

ecks

um is

inte

rnal

ly c

alcu

late

d by

th

e so

ftwar

e af

ter

the

para

met

ers

wer

e tra

nsm

itted

to

the

EE

PR

OM

.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

5242

70 -

20

= E

EP

RO

M -

N

VM

em C

heck

sum

failu

re

(Par

t 1)

- da

ta d

rifte

d hi

gh

Che

cksu

m E

rror

of

Par

amet

er g

roup

‘P

latfo

rm’

A fa

ulty

che

cksu

m w

as d

etec

ted

in th

e re

leva

nt

para

met

er g

roup

in th

e no

n-vo

latil

e m

emor

y (E

EP

RO

M).

Rem

ark:

Thi

s ch

ecks

um is

inte

rnal

ly c

alcu

late

d by

th

e so

ftwar

e af

ter

the

para

met

ers

wer

e tra

nsm

itted

to

the

EE

PR

OM

.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

4013187a

Page 76: Maintenance Manual MM-1719 Anti-Lock Braking System · PDF fileMaintenance Manual MM-1719 Anti-Lock Braking System (ABS) and Electronic Stability Control (ESC) For Modular Braking

5 SPN FMI Fault Codes

72 Meritor WABCO Maintenance Manual MM-1719 (Issued 06-17)

Figure 5.57

DTC

SP

N F

MI

Failu

re D

etec

tion

Nam

eFa

ilure

Det

ectio

n D

escr

iptio

nW

arni

ng a

nd S

yste

m

Rea

ctio

nR

epai

r

5242

70 -

21

= E

EP

RO

M -

N

VM

em C

heck

sum

failu

re

(Par

t 1)

- da

ta d

rifte

d lo

w

Che

cksu

m E

rror

of

Par

amet

er g

roup

‘R

SC

A fa

ulty

che

cksu

m w

as d

etec

ted

in th

e re

leva

nt

para

met

er g

roup

in th

e no

n-vo

latil

e m

emor

y (E

EP

RO

M).

Rem

ark:

Thi

s ch

ecks

um is

inte

rnal

ly c

alcu

late

d by

th

e so

ftwar

e af

ter

the

para

met

ers

wer

e tra

nsm

itted

to

the

EE

PR

OM

.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

5242

70 -

22

= E

EP

RO

M -

N

VM

em C

heck

sum

failu

re

(Par

t 1)

- re

serv

ed (

22)

Che

cksu

m E

rror

of

Par

amet

er g

roup

‘Yaw

C

ontr

ol’

A fa

ulty

che

cksu

m w

as d

etec

ted

in th

e re

leva

nt

para

met

er g

roup

in th

e no

n-vo

latil

e m

emor

y (E

EP

RO

M).

Rem

ark:

Thi

s ch

ecks

um is

inte

rnal

ly c

alcu

late

d by

th

e so

ftwar

e af

ter

the

para

met

ers

wer

e tra

nsm

itted

to

the

EE

PR

OM

.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

5242

70 -

23

= E

EP

RO

M -

N

VM

em C

heck

sum

failu

re

(Par

t 1)

- re

serv

ed (

23)

Che

cksu

m E

rror

of

Par

amet

er g

roup

‘S

teer

ing

Ang

le’

A fa

ulty

che

cksu

m w

as d

etec

ted

in th

e re

leva

nt

para

met

er g

roup

in th

e no

n-vo

latil

e m

emor

y (E

EP

RO

M).

Rem

ark:

Thi

s ch

ecks

um is

inte

rnal

ly c

alcu

late

d by

th

e so

ftwar

e af

ter

the

para

met

ers

wer

e tra

nsm

itted

to

the

EE

PR

OM

.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

5242

70 -

24

= E

EP

RO

M -

N

VM

em C

heck

sum

failu

re

(Par

t 1)

- re

serv

ed (

24)

Che

cksu

m E

rror

of

Par

amet

er g

roup

‘S

teer

ing

Whe

el A

ngle

S

tora

ge’

A fa

ulty

che

cksu

m w

as d

etec

ted

in th

e re

leva

nt

para

met

er g

roup

in th

e no

n-vo

latil

e m

emor

y (E

EP

RO

M).

Rem

ark:

Thi

s ch

ecks

um is

inte

rnal

ly c

alcu

late

d by

th

e so

ftwar

e af

ter

the

para

met

ers

wer

e tra

nsm

itted

to

the

EE

PR

OM

.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

5242

70 -

25

= E

EP

RO

M -

N

VM

em C

heck

sum

failu

re

(Par

t 1)

- re

serv

ed (

25)

Che

cksu

m E

rror

of

Par

amet

er g

roup

‘V

ehic

le A

ccel

erat

ion

Sto

rage

A fa

ulty

che

cksu

m w

as d

etec

ted

in th

e re

leva

nt

para

met

er g

roup

in th

e no

n-vo

latil

e m

emor

y (E

EP

RO

M).

Rem

ark:

Thi

s ch

ecks

um is

inte

rnal

ly c

alcu

late

d by

th

e so

ftwar

e af

ter

the

para

met

ers

wer

e tra

nsm

itted

to

the

EE

PR

OM

.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

5242

70 -

26

= E

EP

RO

M -

N

VM

em C

heck

sum

failu

re

(Par

t 1)

- re

serv

ed (

26)

Che

cksu

m E

rror

of

Par

amet

er g

roup

‘Hill

S

tart

Aid

Sto

rage

A fa

ulty

che

cksu

m w

as d

etec

ted

in th

e re

leva

nt

para

met

er g

roup

in th

e no

n-vo

latil

e m

emor

y (E

EP

RO

M).

Rem

ark:

Thi

s ch

ecks

um is

inte

rnal

ly c

alcu

late

d by

th

e so

ftwar

e af

ter

the

para

met

ers

wer

e tra

nsm

itted

to

the

EE

PR

OM

.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

5242

70 -

27

= E

EP

RO

M -

N

VM

em C

heck

sum

failu

re

(Par

t 1)

- re

serv

ed (

27)

Che

cksu

m E

rror

of

Par

amet

er g

roup

‘T

raile

r D

etec

tion’

A fa

ulty

che

cksu

m w

as d

etec

ted

in th

e re

leva

nt

para

met

er g

roup

in th

e no

n-vo

latil

e m

emor

y (E

EP

RO

M).

Rem

ark:

Thi

s ch

ecks

um is

inte

rnal

ly c

alcu

late

d by

th

e so

ftwar

e af

ter

the

para

met

ers

wer

e tra

nsm

itted

to

the

EE

PR

OM

.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

5242

70 -

28

= E

EP

RO

M -

N

VM

em C

heck

sum

failu

re

(Par

t 1)

- re

serv

ed (

28)

Che

cksu

m E

rror

of

Par

amet

er g

roup

‘S

teer

ing

Ang

le

Sto

rage

A fa

ulty

che

cksu

m w

as d

etec

ted

in th

e re

leva

nt

para

met

er g

roup

in th

e no

n-vo

latil

e m

emor

y (E

EP

RO

M).

Rem

ark:

Thi

s ch

ecks

um is

inte

rnal

ly c

alcu

late

d by

th

e so

ftwar

e af

ter

the

para

met

ers

wer

e tra

nsm

itted

to

the

EE

PR

OM

.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

4013188a

Page 77: Maintenance Manual MM-1719 Anti-Lock Braking System · PDF fileMaintenance Manual MM-1719 Anti-Lock Braking System (ABS) and Electronic Stability Control (ESC) For Modular Braking

5 SPN FMI Fault Codes

73Meritor WABCO Maintenance Manual MM-1719 (Issued 06-17)

Figure 5.58

DTC

SP

N F

MI

Failu

re D

etec

tion

Nam

eFa

ilure

Det

ectio

n D

escr

iptio

nW

arni

ng a

nd S

yste

m

Rea

ctio

nR

epai

r

5242

70 -

29

= E

EP

RO

M -

N

VM

em C

heck

sum

failu

re

(Par

t 1)

- re

serv

ed (

29)

Che

cksu

m E

rror

of

Par

amet

er g

roup

‘E

xter

nal B

rake

A fa

ulty

che

cksu

m w

as d

etec

ted

in th

e re

leva

nt

para

met

er g

roup

in th

e no

n-vo

latil

e m

emor

y (E

EP

RO

M).

Rem

ark:

Thi

s ch

ecks

um is

inte

rnal

ly c

alcu

late

d by

th

e so

ftwar

e af

ter

the

para

met

ers

wer

e tra

nsm

itted

to

the

EE

PR

OM

.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

5242

70 -

30

= E

EP

RO

M -

N

VM

em C

heck

sum

failu

re

(Par

t 1)

- re

serv

ed (

30)

Che

cksu

m E

rror

of

Par

amet

er g

roup

‘E

xter

nal B

rake

S

tora

ge’

A fa

ulty

che

cksu

m w

as d

etec

ted

in th

e re

leva

nt

para

met

er g

roup

in th

e no

n-vo

latil

e m

emor

y (E

EP

RO

M).

Rem

ark:

Thi

s ch

ecks

um is

inte

rnal

ly c

alcu

late

d by

th

e so

ftwar

e af

ter

the

para

met

ers

wer

e tra

nsm

itted

to

the

EE

PR

OM

.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

5242

70 -

31

= E

EP

RO

M -

N

VM

em C

heck

sum

failu

re

(Par

t 1)

- co

nditi

on e

xist

s

Che

cksu

m E

rror

of

Par

amet

er g

roup

‘S

witc

h’

A fa

ulty

che

cksu

m w

as d

etec

ted

in th

e re

leva

nt

para

met

er g

roup

in th

e no

n-vo

latil

e m

emor

y (E

EP

RO

M).

Rem

ark:

Thi

s ch

ecks

um is

inte

rnal

ly c

alcu

late

d by

th

e so

ftwar

e af

ter

the

para

met

ers

wer

e tra

nsm

itted

to

the

EE

PR

OM

.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

5242

71 -

0 =

EE

PR

OM

-

NV

Mem

Che

cksu

m fa

ilure

(P

art 2

) -

data

val

id, b

ut

abov

e no

rmal

ope

ratin

g ra

nge

(mos

t sev

ere

leve

l)

Che

cksu

m E

rror

of

Par

amet

er g

roup

‘B

rake

Pre

ssur

e’

A fa

ulty

che

cksu

m w

as d

etec

ted

in th

e re

leva

nt

para

met

er g

roup

in th

e no

n-vo

latil

e m

emor

y (E

EP

RO

M).

Rem

ark:

Thi

s ch

ecks

um is

inte

rnal

ly c

alcu

late

d by

th

e so

ftwar

e af

ter

the

para

met

ers

wer

e tra

nsm

itted

to

the

EE

PR

OM

.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

5242

71 -

1 =

EE

PR

OM

-

NV

Mem

Che

cksu

m fa

ilure

(P

art 2

) -

data

val

id, b

ut

belo

w n

orm

al o

pera

ting

rang

e (m

ost s

ever

e le

vel)

Che

cksu

m E

rror

of

Par

amet

er g

roup

‘C

ente

r of

Gra

vity

A fa

ulty

che

cksu

m w

as d

etec

ted

in th

e re

leva

nt

para

met

er g

roup

in th

e no

n-vo

latil

e m

emor

y (E

EP

RO

M).

Rem

ark:

Thi

s ch

ecks

um is

inte

rnal

ly c

alcu

late

d by

th

e so

ftwar

e af

ter

the

para

met

ers

wer

e tra

nsm

itted

to

the

EE

PR

OM

.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

5242

71 -

2 =

EE

PR

OM

-

NV

Mem

Che

cksu

m fa

ilure

(P

art 2

) -

data

err

atic

, in

term

itten

t or

inco

rrec

t

Che

cksu

m E

rror

of

Par

amet

er g

roup

‘F

unct

ion

Sys

tem

C

onfig

urat

ion’

A fa

ulty

che

cksu

m w

as d

etec

ted

in th

e re

leva

nt

para

met

er g

roup

in th

e no

n-vo

latil

e m

emor

y (E

EP

RO

M).

Rem

ark:

Thi

s ch

ecks

um is

inte

rnal

ly c

alcu

late

d by

th

e so

ftwar

e af

ter

the

para

met

ers

wer

e tra

nsm

itted

to

the

EE

PR

OM

.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

5242

71 -

3 =

EE

PR

OM

-

NV

Mem

Che

cksu

m fa

ilure

(P

art 2

) -

volta

ge a

bove

no

rmal

or

shor

ted

high

Che

cksu

m E

rror

of

Par

amet

er

grou

p ‘H

ardw

are

Con

figur

atio

n’

A fa

ulty

che

cksu

m w

as d

etec

ted

in th

e re

leva

nt

para

met

er g

roup

in th

e no

n-vo

latil

e m

emor

y (E

EP

RO

M).

Rem

ark:

Thi

s ch

ecks

um is

inte

rnal

ly c

alcu

late

d by

th

e so

ftwar

e af

ter

the

para

met

ers

wer

e tra

nsm

itted

to

the

EE

PR

OM

.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

5242

71 -

4 =

EE

PR

OM

-

NV

Mem

Che

cksu

m fa

ilure

(P

art 2

) -

volta

ge b

elow

no

rmal

or

shor

ted

low

Che

cksu

m E

rror

of

Par

amet

er g

roup

‘S

peed

omet

er

Adj

ustm

ent’

A fa

ulty

che

cksu

m w

as d

etec

ted

in th

e re

leva

nt

para

met

er g

roup

in th

e no

n-vo

latil

e m

emor

y (E

EP

RO

M).

Rem

ark:

Thi

s ch

ecks

um is

inte

rnal

ly c

alcu

late

d by

th

e so

ftwar

e af

ter

the

para

met

ers

wer

e tra

nsm

itted

to

the

EE

PR

OM

.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

4013189a

Page 78: Maintenance Manual MM-1719 Anti-Lock Braking System · PDF fileMaintenance Manual MM-1719 Anti-Lock Braking System (ABS) and Electronic Stability Control (ESC) For Modular Braking

5 SPN FMI Fault Codes

74 Meritor WABCO Maintenance Manual MM-1719 (Issued 06-17)

Figure 5.59

DTC

SP

N F

MI

Failu

re D

etec

tion

Nam

eFa

ilure

Det

ectio

n D

escr

iptio

nW

arni

ng a

nd S

yste

m

Rea

ctio

nR

epai

r

5242

71 -

5 =

EE

PR

OM

-

NV

Mem

Che

cksu

m fa

ilure

(P

art 2

) -

curr

ent b

elow

no

rmal

or

open

circ

uit

Che

cksu

m E

rror

of

Par

amet

er g

roup

‘S

peed

omet

er

Adj

ustm

ent S

tora

ge’

A fa

ulty

che

cksu

m w

as d

etec

ted

in th

e re

leva

nt

para

met

er g

roup

in th

e no

n-vo

latil

e m

emor

y (E

EP

RO

M).

Rem

ark:

Thi

s ch

ecks

um is

inte

rnal

ly c

alcu

late

d by

th

e so

ftwar

e af

ter

the

para

met

ers

wer

e tra

nsm

itted

to

the

EE

PR

OM

.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

5242

71 -

6 =

EE

PR

OM

-

NV

Mem

Che

cksu

m fa

ilure

(P

art 2

) -

curr

ent a

bove

no

rmal

or

grou

nded

circ

uit

Che

cksu

m E

rror

of

Par

amet

er g

roup

‘S

uppl

y Vo

ltage

A fa

ulty

che

cksu

m w

as d

etec

ted

in th

e re

leva

nt

para

met

er g

roup

in th

e no

n-vo

latil

e m

emor

y (E

EP

RO

M).

Rem

ark:

Thi

s ch

ecks

um is

inte

rnal

ly c

alcu

late

d by

th

e so

ftwar

e af

ter

the

para

met

ers

wer

e tra

nsm

itted

to

the

EE

PR

OM

.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

5242

71 -

7 =

EE

PR

OM

-

NV

Mem

Che

cksu

m fa

ilure

(P

art 2

) - m

echa

nica

l sys

tem

no

t res

pond

ing

corr

ectly

or

out o

f adj

ustm

ent

Che

cksu

m E

rror

of

Par

amet

er g

roup

‘V

ehic

le C

AN

A fa

ulty

che

cksu

m w

as d

etec

ted

in th

e re

leva

nt

para

met

er g

roup

in th

e no

n-vo

latil

e m

emor

y (E

EP

RO

M).

Rem

ark:

Thi

s ch

ecks

um is

inte

rnal

ly c

alcu

late

d by

th

e so

ftwar

e af

ter

the

para

met

ers

wer

e tra

nsm

itted

to

the

EE

PR

OM

.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

5242

71 -

8 =

EE

PR

OM

-

NV

Mem

Che

cksu

m

failu

re (

Par

t 2)

- ab

norm

al

freq

uenc

y, p

ulse

wid

th o

r pe

riod

Che

cksu

m E

rror

of

Par

amet

er g

roup

‘A

uxili

ary

Par

kbra

ke’

A fa

ulty

che

cksu

m w

as d

etec

ted

in th

e re

leva

nt

para

met

er g

roup

in th

e no

n-vo

latil

e m

emor

y (E

EP

RO

M).

Rem

ark:

Thi

s ch

ecks

um is

inte

rnal

ly c

alcu

late

d by

th

e so

ftwar

e af

ter

the

para

met

ers

wer

e tra

nsm

itted

to

the

EE

PR

OM

.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

5242

71 -

9 =

EE

PR

OM

-

NV

Mem

Che

cksu

m fa

ilure

(P

art 2

) -

abno

rmal

upd

ate

rate

Che

cksu

m E

rror

of

Par

amet

er g

roup

‘E

mer

genc

y S

top

Sig

nal’

A fa

ulty

che

cksu

m w

as d

etec

ted

in th

e re

leva

nt

para

met

er g

roup

in th

e no

n-vo

latil

e m

emor

y (E

EP

RO

M).

Rem

ark:

Thi

s ch

ecks

um is

inte

rnal

ly c

alcu

late

d by

th

e so

ftwar

e af

ter

the

para

met

ers

wer

e tra

nsm

itted

to

the

EE

PR

OM

.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

5242

71 -

10

= E

EP

RO

M -

N

VM

em C

heck

sum

failu

re

(Par

t 2)

- ab

norm

al ra

te o

f ch

ange

Che

cksu

m E

rror

of

Par

amet

er g

roup

‘G

loba

l Var

iant

C

odin

g’

A fa

ulty

che

cksu

m w

as d

etec

ted

in th

e re

leva

nt

para

met

er g

roup

in th

e no

n-vo

latil

e m

emor

y (E

EP

RO

M).

Rem

ark:

Thi

s ch

ecks

um is

inte

rnal

ly c

alcu

late

d by

th

e so

ftwar

e af

ter

the

para

met

ers

wer

e tra

nsm

itted

to

the

EE

PR

OM

.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

5242

71 -

11

= E

EP

RO

M -

N

VM

em C

heck

sum

failu

re

(Par

t 2)

- fa

ilure

mod

e no

t id

entifi

able

/roo

t cau

se n

ot

know

n

Che

cksu

m E

rror

of

Par

amet

er g

roup

‘M

BT

Spe

cific

P

aram

eter

s’

A fa

ulty

che

cksu

m w

as d

etec

ted

in th

e re

leva

nt

para

met

er g

roup

in th

e no

n-vo

latil

e m

emor

y (E

EP

RO

M).

Rem

ark:

Thi

s ch

ecks

um is

inte

rnal

ly c

alcu

late

d by

th

e so

ftwar

e af

ter

the

para

met

ers

wer

e tra

nsm

itted

to

the

EE

PR

OM

.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

5242

71 -

12

= E

EP

RO

M -

N

VM

em C

heck

sum

failu

re

(Par

t 2)

- ba

d in

telli

gent

de

vice

or

com

pone

nt

Che

cksu

m E

rror

of

Par

amet

er g

roup

‘P

latfo

rm S

tora

ge’

A fa

ulty

che

cksu

m w

as d

etec

ted

in th

e re

leva

nt

para

met

er g

roup

in th

e no

n-vo

latil

e m

emor

y (E

EP

RO

M).

Rem

ark:

Thi

s ch

ecks

um is

inte

rnal

ly c

alcu

late

d by

th

e so

ftwar

e af

ter

the

para

met

ers

wer

e tra

nsm

itted

to

the

EE

PR

OM

.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

4013190a

Page 79: Maintenance Manual MM-1719 Anti-Lock Braking System · PDF fileMaintenance Manual MM-1719 Anti-Lock Braking System (ABS) and Electronic Stability Control (ESC) For Modular Braking

5 SPN FMI Fault Codes

75Meritor WABCO Maintenance Manual MM-1719 (Issued 06-17)

Figure 5.60

DTC

SP

N F

MI

Failu

re D

etec

tion

Nam

eFa

ilure

Det

ectio

n D

escr

iptio

nW

arni

ng a

nd S

yste

m

Rea

ctio

nR

epai

r

5242

71 -

13

= E

EP

RO

M -

N

VM

em C

heck

sum

failu

re

(Par

t 2)

- ou

t of c

alib

ratio

n

Che

cksu

m E

rror

of

Par

amet

er g

roup

‘M

odel

Dia

gnos

tics

Sto

rage

A fa

ulty

che

cksu

m w

as d

etec

ted

in th

e re

leva

nt

para

met

er g

roup

in th

e no

n-vo

latil

e m

emor

y (E

EP

RO

M).

Rem

ark:

Thi

s ch

ecks

um is

inte

rnal

ly c

alcu

late

d by

th

e so

ftwar

e af

ter

the

para

met

ers

wer

e tra

nsm

itted

to

the

EE

PR

OM

.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

5242

71 -

14

= E

EP

RO

M -

N

VM

em C

heck

sum

failu

re

(Par

t 2)

- sp

ecia

l ins

truc

tions

Che

cksu

m E

rror

of

Par

amet

er g

roup

‘A

uxili

ary

Axl

es’

A fa

ulty

che

cksu

m w

as d

etec

ted

in th

e re

leva

nt

para

met

er g

roup

in th

e no

n-vo

latil

e m

emor

y (E

EP

RO

M).

Rem

ark:

Thi

s ch

ecks

um is

inte

rnal

ly c

alcu

late

d by

th

e so

ftwar

e af

ter

the

para

met

ers

wer

e tra

nsm

itted

to

the

EE

PR

OM

.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

5242

71 -

15

= E

EP

RO

M -

N

VM

em C

heck

sum

failu

re

(Par

t 2)

- da

ta v

alid

, but

ab

ove

norm

al o

pera

ting

rang

e (le

ast s

ever

e le

vel)

Che

cksu

m E

rror

of

Par

amet

er g

roup

‘C

ombi

natio

n S

tabi

lity

Con

trol

A fa

ulty

che

cksu

m w

as d

etec

ted

in th

e re

leva

nt

para

met

er g

roup

in th

e no

n-vo

latil

e m

emor

y (E

EP

RO

M).

Rem

ark:

Thi

s ch

ecks

um is

inte

rnal

ly c

alcu

late

d by

th

e so

ftwar

e af

ter

the

para

met

ers

wer

e tra

nsm

itted

to

the

EE

PR

OM

.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

5242

71 -

16

= E

EP

RO

M -

N

VM

em C

heck

sum

failu

re

(Par

t 2)

- da

ta v

alid

, but

ab

ove

norm

al o

pera

ting

rang

e (m

oder

atel

y se

vere

le

vel)

Che

cksu

m E

rror

of

Par

amet

er g

roup

‘E

apu’

A fa

ulty

che

cksu

m w

as d

etec

ted

in th

e re

leva

nt

para

met

er g

roup

in th

e no

n-vo

latil

e m

emor

y (E

EP

RO

M).

Rem

ark:

Thi

s ch

ecks

um is

inte

rnal

ly c

alcu

late

d by

th

e so

ftwar

e af

ter

the

para

met

ers

wer

e tra

nsm

itted

to

the

EE

PR

OM

.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

5242

71 -

17

= E

EP

RO

M -

N

VM

em C

heck

sum

failu

re

(Par

t 2)

- da

ta v

alid

, but

be

low

nor

mal

ope

ratin

g ra

nge

(leas

t sev

ere

leve

l)

Che

cksu

m E

rror

of

Par

amet

er g

roup

‘E

apu

Sto

rage

A fa

ulty

che

cksu

m w

as d

etec

ted

in th

e re

leva

nt

para

met

er g

roup

in th

e no

n-vo

latil

e m

emor

y (E

EP

RO

M).

Rem

ark:

Thi

s ch

ecks

um is

inte

rnal

ly c

alcu

late

d by

th

e so

ftwar

e af

ter

the

para

met

ers

wer

e tra

nsm

itted

to

the

EE

PR

OM

.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

5242

71 -

18

= E

EP

RO

M -

N

VM

em C

heck

sum

failu

re

(Par

t 2)

- da

ta v

alid

, but

be

low

nor

mal

ope

ratin

g ra

nge

(mod

erat

ely

seve

re

leve

l)

Che

cksu

m E

rror

of

Par

amet

er g

roup

‘Esc

S

enso

r’

A fa

ulty

che

cksu

m w

as d

etec

ted

in th

e re

leva

nt

para

met

er g

roup

in th

e no

n-vo

latil

e m

emor

y (E

EP

RO

M).

Rem

ark:

Thi

s ch

ecks

um is

inte

rnal

ly c

alcu

late

d by

th

e so

ftwar

e af

ter

the

para

met

ers

wer

e tra

nsm

itted

to

the

EE

PR

OM

.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

5242

71 -

19

= E

EP

RO

M -

N

VM

em C

heck

sum

failu

re

(Par

t 2)

- re

ceiv

ed n

etw

ork

data

in e

rror

Che

cksu

m E

rror

of

Par

amet

er g

roup

‘Esc

S

enso

r S

tora

ge’

A fa

ulty

che

cksu

m w

as d

etec

ted

in th

e re

leva

nt

para

met

er g

roup

in th

e no

n-vo

latil

e m

emor

y (E

EP

RO

M).

Rem

ark:

Thi

s ch

ecks

um is

inte

rnal

ly c

alcu

late

d by

th

e so

ftwar

e af

ter

the

para

met

ers

wer

e tra

nsm

itted

to

the

EE

PR

OM

.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

5242

71 -

20

= E

EP

RO

M -

N

VM

em C

heck

sum

failu

re

(Par

t 2)

- da

ta d

rifte

d hi

gh

Che

cksu

m E

rror

of

Par

amet

er g

roup

‘G

vcT

ime

Sta

mp

Sto

rage

A fa

ulty

che

cksu

m w

as d

etec

ted

in th

e re

leva

nt

para

met

er g

roup

in th

e no

n-vo

latil

e m

emor

y (E

EP

RO

M).

Rem

ark:

Thi

s ch

ecks

um is

inte

rnal

ly c

alcu

late

d by

th

e so

ftwar

e af

ter

the

para

met

ers

wer

e tra

nsm

itted

to

the

EE

PR

OM

.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

4013191a

Page 80: Maintenance Manual MM-1719 Anti-Lock Braking System · PDF fileMaintenance Manual MM-1719 Anti-Lock Braking System (ABS) and Electronic Stability Control (ESC) For Modular Braking

5 SPN FMI Fault Codes

76 Meritor WABCO Maintenance Manual MM-1719 (Issued 06-17)

Figure 5.61

DTC

SP

N F

MI

Failu

re D

etec

tion

Nam

eFa

ilure

Det

ectio

n D

escr

iptio

nW

arni

ng a

nd S

yste

m

Rea

ctio

nR

epai

r

5242

71 -

21

= E

EP

RO

M -

N

VM

em C

heck

sum

failu

re

(Par

t 2)

- da

ta d

rifte

d lo

w

Che

cksu

m E

rror

of

Par

amet

er g

roup

‘O

pen

Loop

Pre

ssur

e C

ontr

ol’

A fa

ulty

che

cksu

m w

as d

etec

ted

in th

e re

leva

nt

para

met

er g

roup

in th

e no

n-vo

latil

e m

emor

y (E

EP

RO

M).

Rem

ark:

Thi

s ch

ecks

um is

inte

rnal

ly c

alcu

late

d by

th

e so

ftwar

e af

ter

the

para

met

ers

wer

e tra

nsm

itted

to

the

EE

PR

OM

.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

5242

71 -

22

= E

EP

RO

M -

N

VM

em C

heck

sum

failu

re

(Par

t 2)

- re

serv

ed (

22)

Che

cksu

m E

rror

of

Par

amet

er g

roup

‘S

afet

y M

onito

rs’

A fa

ulty

che

cksu

m w

as d

etec

ted

in th

e re

leva

nt

para

met

er g

roup

in th

e no

n-vo

latil

e m

emor

y (E

EP

RO

M).

Rem

ark:

Thi

s ch

ecks

um is

inte

rnal

ly c

alcu

late

d by

th

e so

ftwar

e af

ter

the

para

met

ers

wer

e tra

nsm

itted

to

the

EE

PR

OM

.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

5242

71 -

23

= E

EP

RO

M -

N

VM

em C

heck

sum

failu

re

(Par

t 2)

- re

serv

ed (

23)

Che

cksu

m E

rror

of

Par

amet

er g

roup

‘Yaw

R

ate’

A fa

ulty

che

cksu

m w

as d

etec

ted

in th

e re

leva

nt

para

met

er g

roup

in th

e no

n-vo

latil

e m

emor

y (E

EP

RO

M).

Rem

ark:

Thi

s ch

ecks

um is

inte

rnal

ly c

alcu

late

d by

th

e so

ftwar

e af

ter

the

para

met

ers

wer

e tra

nsm

itted

to

the

EE

PR

OM

.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

5242

71 -

24

= E

EP

RO

M -

N

VM

em C

heck

sum

failu

re

(Par

t 2)

- re

serv

ed (

24)

Che

cksu

m E

rror

of

Par

amet

er g

roup

‘R

SC

Sto

rage

A fa

ulty

che

cksu

m w

as d

etec

ted

in th

e re

leva

nt

para

met

er g

roup

in th

e no

n-vo

latil

e m

emor

y (E

EP

RO

M).

Rem

ark:

Thi

s ch

ecks

um is

inte

rnal

ly c

alcu

late

d by

th

e so

ftwar

e af

ter

the

para

met

ers

wer

e tra

nsm

itted

to

the

EE

PR

OM

.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

5242

71 -

25

= E

EP

RO

M -

N

VM

em C

heck

sum

failu

re

(Par

t 2)

- re

serv

ed (

25)

Che

cksu

m E

rror

of

Par

amet

er g

roup

‘L

oad

Cha

nge

Det

ectio

n S

tora

ge’

A fa

ulty

che

cksu

m w

as d

etec

ted

in th

e re

leva

nt

para

met

er g

roup

in th

e no

n-vo

latil

e m

emor

y (E

EP

RO

M).

Rem

ark:

Thi

s ch

ecks

um is

inte

rnal

ly c

alcu

late

d by

th

e so

ftwar

e af

ter

the

para

met

ers

wer

e tra

nsm

itted

to

the

EE

PR

OM

.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

5242

71 -

26

= E

EP

RO

M -

N

VM

em C

heck

sum

failu

re

(Par

t 2)

- re

serv

ed (

26)

Che

cksu

m E

rror

of

Par

amet

er g

roup

‘B

rake

Cyl

inde

r P

ress

ure

Est

imat

or

Sto

rage

A fa

ulty

che

cksu

m w

as d

etec

ted

in th

e re

leva

nt

para

met

er g

roup

in th

e no

n-vo

latil

e m

emor

y (E

EP

RO

M).

Rem

ark:

Thi

s ch

ecks

um is

inte

rnal

ly c

alcu

late

d by

th

e so

ftwar

e af

ter

the

para

met

ers

wer

e tra

nsm

itted

to

the

EE

PR

OM

.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

5242

71 -

27

= E

EP

RO

M -

N

VM

em C

heck

sum

failu

re

(Par

t 2)

- re

serv

ed (

27)

Che

cksu

m E

rror

of

Par

amet

er g

roup

‘S

teer

ing

Whe

el

Ang

le’

A fa

ulty

che

cksu

m w

as d

etec

ted

in th

e re

leva

nt

para

met

er g

roup

in th

e no

n-vo

latil

e m

emor

y (E

EP

RO

M).

Rem

ark:

Thi

s ch

ecks

um is

inte

rnal

ly c

alcu

late

d by

th

e so

ftwar

e af

ter

the

para

met

ers

wer

e tra

nsm

itted

to

the

EE

PR

OM

.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

5242

71 -

28

= E

EP

RO

M -

N

VM

em C

heck

sum

failu

re

(Par

t 2)

- re

serv

ed (

28)

Che

cksu

m E

rror

of

Par

amet

er g

roup

‘Axl

e M

odul

ator

Inte

rface

A fa

ulty

che

cksu

m w

as d

etec

ted

in th

e re

leva

nt

para

met

er g

roup

in th

e no

n-vo

latil

e m

emor

y (E

EP

RO

M).

Rem

ark:

Thi

s ch

ecks

um is

inte

rnal

ly c

alcu

late

d by

th

e so

ftwar

e af

ter

the

para

met

ers

wer

e tra

nsm

itted

to

the

EE

PR

OM

.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

4013192a

Page 81: Maintenance Manual MM-1719 Anti-Lock Braking System · PDF fileMaintenance Manual MM-1719 Anti-Lock Braking System (ABS) and Electronic Stability Control (ESC) For Modular Braking

5 SPN FMI Fault Codes

77Meritor WABCO Maintenance Manual MM-1719 (Issued 06-17)

Figure 5.62

DTC

SP

N F

MI

Failu

re D

etec

tion

Nam

eFa

ilure

Det

ectio

n D

escr

iptio

nW

arni

ng a

nd S

yste

m

Rea

ctio

nR

epai

r

5242

71 -

29

= E

EP

RO

M -

N

VM

em C

heck

sum

failu

re

(Par

t 2)

- re

serv

ed (

29)

Che

cksu

m E

rror

of

Par

amet

er g

roup

‘B

rake

Con

trol

A

ssig

nmen

t’

A fa

ulty

che

cksu

m w

as d

etec

ted

in th

e re

leva

nt

para

met

er g

roup

in th

e no

n-vo

latil

e m

emor

y (E

EP

RO

M).

Rem

ark:

Thi

s ch

ecks

um is

inte

rnal

ly c

alcu

late

d by

th

e so

ftwar

e af

ter

the

para

met

ers

wer

e tra

nsm

itted

to

the

EE

PR

OM

.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

5242

71 -

30

= E

EP

RO

M -

N

VM

em C

heck

sum

failu

re

(Par

t 2)

- re

serv

ed (

30)

Che

cksu

m E

rror

of

Par

amet

er g

roup

‘B

rake

Con

trol

A

ssig

nmen

t EB

S’

A fa

ulty

che

cksu

m w

as d

etec

ted

in th

e re

leva

nt

para

met

er g

roup

in th

e no

n-vo

latil

e m

emor

y (E

EP

RO

M).

Rem

ark:

Thi

s ch

ecks

um is

inte

rnal

ly c

alcu

late

d by

th

e so

ftwar

e af

ter

the

para

met

ers

wer

e tra

nsm

itted

to

the

EE

PR

OM

.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

5242

71 -

31

= E

EP

RO

M -

N

VM

em C

heck

sum

failu

re

(Par

t 2)

- co

nditi

on e

xist

s

Che

cksu

m E

rror

of

Par

amet

er g

roup

‘C

lose

d Lo

op

Pre

ssur

e C

ontr

ol’

A fa

ulty

che

cksu

m w

as d

etec

ted

in th

e re

leva

nt

para

met

er g

roup

in th

e no

n-vo

latil

e m

emor

y (E

EP

RO

M).

Rem

ark:

Thi

s ch

ecks

um is

inte

rnal

ly c

alcu

late

d by

th

e so

ftwar

e af

ter

the

para

met

ers

wer

e tra

nsm

itted

to

the

EE

PR

OM

.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

5242

72 -

0 =

EE

PR

OM

-

NV

Mem

Che

cksu

m fa

ilure

(P

art 3

) -

data

val

id, b

ut

abov

e no

rmal

ope

ratin

g ra

nge

(mos

t sev

ere

leve

l)

Che

cksu

m E

rror

of

Par

amet

er g

roup

‘E

CU

Sup

ply

Volta

ge’

A fa

ulty

che

cksu

m w

as d

etec

ted

in th

e re

leva

nt

para

met

er g

roup

in th

e no

n-vo

latil

e m

emor

y (E

EP

RO

M).

Rem

ark:

Thi

s ch

ecks

um is

inte

rnal

ly c

alcu

late

d by

th

e so

ftwar

e af

ter

the

para

met

ers

wer

e tra

nsm

itted

to

the

EE

PR

OM

.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

5242

72 -

1 =

EE

PR

OM

-

NV

Mem

Che

cksu

m fa

ilure

(P

art 3

) -

data

val

id, b

ut

belo

w n

orm

al o

pera

ting

rang

e (m

ost s

ever

e le

vel)

Che

cksu

m E

rror

of

Par

amet

er

grou

p ‘H

ardw

are

Con

figur

atio

n A

xle

Mod

ulat

or’

A fa

ulty

che

cksu

m w

as d

etec

ted

in th

e re

leva

nt

para

met

er g

roup

in th

e no

n-vo

latil

e m

emor

y (E

EP

RO

M).

Rem

ark:

Thi

s ch

ecks

um is

inte

rnal

ly c

alcu

late

d by

th

e so

ftwar

e af

ter

the

para

met

ers

wer

e tra

nsm

itted

to

the

EE

PR

OM

.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

5242

72 -

2 =

EE

PR

OM

-

NV

Mem

Che

cksu

m fa

ilure

(P

art 3

) -

data

err

atic

, in

term

itten

t or

inco

rrec

t

Che

cksu

m E

rror

of

Par

amet

er g

roup

‘P

aram

eter

Pla

usib

ility

S

tora

ge’

A fa

ulty

che

cksu

m w

as d

etec

ted

in th

e re

leva

nt

para

met

er g

roup

in th

e no

n-vo

latil

e m

emor

y (E

EP

RO

M).

Rem

ark:

Thi

s ch

ecks

um is

inte

rnal

ly c

alcu

late

d by

th

e so

ftwar

e af

ter

the

para

met

ers

wer

e tra

nsm

itted

to

the

EE

PR

OM

.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

5242

72 -

3 =

EE

PR

OM

-

NV

Mem

Che

cksu

m fa

ilure

(P

art 3

) -

volta

ge a

bove

no

rmal

or

shor

ted

high

Che

cksu

m E

rror

of

Par

amet

er g

roup

‘P

ress

ure

Incr

ease

A

ssis

t’

A fa

ulty

che

cksu

m w

as d

etec

ted

in th

e re

leva

nt

para

met

er g

roup

in th

e no

n-vo

latil

e m

emor

y (E

EP

RO

M).

Rem

ark:

Thi

s ch

ecks

um is

inte

rnal

ly c

alcu

late

d by

th

e so

ftwar

e af

ter

the

para

met

ers

wer

e tra

nsm

itted

to

the

EE

PR

OM

.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

5242

72 -

4 =

EE

PR

OM

-

NV

Mem

Che

cksu

m fa

ilure

(P

art 3

) -

volta

ge b

elow

no

rmal

or

shor

ted

low

Che

cksu

m E

rror

of

Par

amet

er

grou

p ‘S

yste

m B

us

Con

figur

atio

n’

A fa

ulty

che

cksu

m w

as d

etec

ted

in th

e re

leva

nt

para

met

er g

roup

in th

e no

n-vo

latil

e m

emor

y (E

EP

RO

M).

Rem

ark:

Thi

s ch

ecks

um is

inte

rnal

ly c

alcu

late

d by

th

e so

ftwar

e af

ter

the

para

met

ers

wer

e tra

nsm

itted

to

the

EE

PR

OM

.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

5242

72 -

5 =

EE

PR

OM

-

NV

Mem

Che

cksu

m fa

ilure

(P

art 3

) -

curr

ent b

elow

no

rmal

or

open

circ

uit

Che

cksu

m E

rror

of

Par

amet

er g

roup

‘B

rake

Ped

al S

tora

ge’

A fa

ulty

che

cksu

m w

as d

etec

ted

in th

e re

leva

nt

para

met

er g

roup

in th

e no

n-vo

latil

e m

emor

y (E

EP

RO

M).

Rem

ark:

Thi

s ch

ecks

um is

inte

rnal

ly c

alcu

late

d by

th

e so

ftwar

e af

ter

the

para

met

ers

wer

e tra

nsm

itted

to

the

EE

PR

OM

.

Yello

w D

river

War

ning

, A

BS

com

plet

ely

switc

hed

off

• C

onta

ct th

e M

erito

r O

nTra

c™ C

usto

mer

Cal

l Cen

ter

at

866-

OnT

rac1

(66

8-72

21).

4013193a

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5 SPN FMI Fault Codes

78 Meritor WABCO Maintenance Manual MM-1719 (Issued 06-17)

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4013194a

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Notes

Page 84: Maintenance Manual MM-1719 Anti-Lock Braking System · PDF fileMaintenance Manual MM-1719 Anti-Lock Braking System (ABS) and Electronic Stability Control (ESC) For Modular Braking

Meritor WABCO Vehicle Control Systems2135 West Maple Road Printed in USATroy, MI 48084-7121866-OnTrac1 (668-7221) Copyright 2017 Issued 06-17meritorwabco.com Meritor, Inc. Maintenance Manual MM-1719 (16579)