3500 engine controls - electronic unit injection (slides).pdf

3500B ENGINE CONTROLS

ELECTRONIC UNIT INJECTION (EUI)

2002 Caterpillar Inc.

FUEL TANK

PRIMARYFUEL

FILTER

SECONDARYFUEL FILTERS

(2 MICRON)

ENGINEBLOCK

OIL RENEWALINJECTOR

FUELPRESSURE

REGULATOR

FUELTRANSFER

PUMPFUELHEATER

ECM

3516B FUEL SUPPLY CIRCUIT (793C)

PRIMING PUMP SUPPLY

FUELDIFFERENTIAL

PRESSURESWITCH

CYLINDERHEAD

TOPRELUBRICATION

PUMP

+ BATTERY

GROUNDBOLT

15 AMPBREAKER

KEY STARTSWITCH

24 V

P20/J20SPEED/TIMING

SENSOR

J3/P3 MACHINEINTERFACE

CONNECTOR

COOLANTTEMPERATURE

SENSOR

8/12/16INJECTORS

GROUND BOLT

P26 T/C CONNECTOR

J4/P4 THROUGHJ19/P19

J2

J1

ECM

UNFILTERED OILPRESSURE

SENSOR

AFTERCOOLERTEMPERATURE

SENSOR

CRANKCASEPRESSURE

SENSOR

J29/P29

RIGHTTURBOCHARGERINLET PRESSURE

SENSOR

J25/P25

LOW OILLEVEL

SWITCH

ATMOSPHERICPRESSURE

SENSOR

FUEL FILTERDIFFERENTIAL

PRESSURE SWITCH

TURBOCHARGEROUTLET

PRESSURE SENSOR

J23/P23

COOLANTFLOW

SWITCH

FILTERED OILPRESSURE

SENSOR

J22/P22

LEFTTURBOCHARGER

EXHAUSTTEMPERATURE

SENSOR

RIGHTTURBOCHARGER

EXHAUSTTEMPERATURE

SENSOR

LEFTTURBOCHARGERINLET PRESSURE

SENSOR

J28/P28

J35/P35

THROTTLEPOSITIONSENSOR

THROTTLEBACK-UPSWITCH

WASTEGATECONTROL SOLENOID

USER DEFINED SHUTDOWN

GROUNDLEVEL

SHUTDOWNSWITCH

BATTERY

ENGINE FANCONTROLSOLENOID

A/C ONSWITCH

FAN SPEED SENSOR

+ BATTERY

RELAYCYLINDER

ENGINE

ETHER START VALVE

STARTINGAID SWITCH

J21/P21

J32/P32

J105/P105

J106/P106

J47/P47

P30/J30

J27/P27

J48/P48

P84/J84

P41/J41

308-YL

113-OR

BASIC ENGINE BLOCK DIAGRAM APPLICATION BLOCK DIAGRAM

ELECTRONIC SERVICETOOL CONNECTOR

TO VIMS, EPTC II ORMONITORING SYSTEM

DISCONNECTSWITCH

OIL RENEWALCONTROL SOLENOID

15 AMPBREAKER

COOLANTTEMPERATURE

SENSOR


RELAY

J21/P21

J47/P47

J103/P103

J113/P113

P31/J31

OTHER SYSTEMS CONTROLLED BY THE ECM

Oil Renewal

Exhaust Wastegate Control

Engine Oil Prelube

Variable Speed Fan Control

Ether Injection System

TOPRELUBRICATION

PUMP

+ BATTERY

GROUNDBOLT

15 AMPBREAKER

KEY STARTSWITCH

24 V

P20/J20SPEED/TIMING

SENSOR


CONNECTOR

COOLANTTEMPERATURE

SENSOR

8/12/16INJECTORS

GROUND BOLT

P26 T/C CONNECTOR


J2

J1

ECM


SENSOR


SENSOR

CRANKCASEPRESSURE

SENSOR

J29/P29


SENSOR

J25/P25

LOW OILLEVEL

SWITCH

ATMOSPHERICPRESSURE

SENSOR


PRESSURE SWITCH

TURBOCHARGEROUTLET

PRESSURE SENSOR

J23/P23

COOLANTFLOW

SWITCH


SENSOR

J22/P22

LEFTTURBOCHARGER

EXHAUSTTEMPERATURE

SENSOR

RIGHTTURBOCHARGER

EXHAUSTTEMPERATURE

SENSOR


SENSOR

J28/P28

J35/P35





GROUNDLEVEL

SHUTDOWNSWITCH

BATTERY


A/C ONSWITCH

FAN SPEED SENSOR

+ BATTERY

RELAYCYLINDER

ENGINE

ETHER START VALVE

STARTINGAID SWITCH

J21/P21

J32/P32

J105/P105

J106/P106

J47/P47

P30/J30

J27/P27

J48/P48

P84/J84

P41/J41

308-YL

113-OR




DISCONNECTSWITCH


15 AMPBREAKER

COOLANTTEMPERATURE

SENSOR


RELAY

J21/P21

J47/P47

J103/P103

J113/P113

P31/J31

ELECTRONICCONTROL SYSTEM

INJECTOR SOLENOID TEST

CYLINDER CUT-OUT

AUTOMATIC INJECTOR TEST

EUI INJECTOR TESTINGMETHODS

EUI CONTROL LOGIC

ENGINE SPEED

FUEL QUANTITY FUEL RPM

COLD MODE

SELECTTIMING

CONVERTDESIREDTIMING

COOLANTTEMPERATURE

TIMING CONTROL

DEGREES BTDC DESIREDTIMINGBTDC

TIMINGFUEL INJECTION

TIMING WAVE FORM

ELECTRONICGOVERNOR

TORQUEMAPS

FRCMAPS

TURBO OUTLET ANDATMOSPHERIC

PRESSURE SENSORS

ENGINECONTROL

LOGIC

THROTTLE

SHUTDOWNS

ENGINE RPM

TDC

87654321

SIGNALSTO FUEL

INJECTORS

FUELINJECTIONCONTROL

SPEED/TIMINGSIGNAL

ENGINE RPM

SPEED/TIMINGSENSOR

TIMINGWHEEL

ENGINE RPM

ECM

COOLANTTEMPERATURE

SENSOR

3500BELECTRONIC GOVERNOR

P20/J20SPEED/TIMING SENSOR MACHINE INTERFACE

CONNECTOR

COOLANTTEMPERATURE SENSOR

8/12/16INJECTORS

GROUND BOLT


J2

J1

ECM

UNFILTERED OILPRESSURE SENSOR

CRANKCASEPRESSURE SENSOR

ATMOSPHERICPRESSURE SENSOR

TURBOCHARGER OUTLETPRESSURE SENSOR

FILTERED OILPRESSURE SENSOR

RIGHT TURBOCHARGERINLET PRESSURE SENSOR

LEFT TURBOCHARGERINLET PRESSURE SENSOR

AFTERCOOLERTEMPERATURE SENSOR

LOW OILLEVEL SWITCH


PRESSURE SWITCH

COOLANTFLOW SWITCH

LEFT TURBOCHARGEREXHAUST

TEMPERATURE SENSOR

RIGHT TURBOCHARGEREXHAUST

TEMPERATURE SENSOR

J21/P21

J32/P32

J105/P105

J106/P106

J47/P47

P30/J30

P31/J31 J25/P25

J28/P28

J22/P22

J23/P23

J27/P27

J29/P29

J48/P48

J3/P3

P26T/C CONNECTOR

BASIC ENGINE BLOCK DIAGRAM

3229381812

996-GN998-BR999-WHF723-PKF724-PU

+V TIMINGDIGITAL RETURNPRIMARY ENGINE SPEEDTIMING CAL +TIMING CAL -

ECM

P2 J2

ABC

ORBKWH

SPEED/TIMINGSENSOR

TIMING CALIBRATIONCONNECTOR

12

SPEED/TIMING SENSOR

P20 J20

P26 P1 J1

50/50TOOTHSLOT

50/50TOOTHSLOT

50/50TOOTHSLOT

80/20TOOTHSLOT

SPEED/TIMINGSENSOR

TIMINGCALIBRATION

RANGE 7

CYL. NO. 3REFTDC

CYL. NO. 4

REF

TDCCYL. NO. 8

TDC

REF

TIMING GEAR TOOTH TABLETABLEENTRY

CYLINDERREFERENCE

ABCDEFGH

80 %50 %80 %80 %80 %50 %50 %80 %

NONE IDENTIFIED

PWM DUTYCYCLE

A B C D E F G H

TIMING WHEEL ROTATION

CRANKING

80/20 % 80/20 % 80/20 %80/20 %50/50% 50/50% 50/50%

TIMING GEAR TOOTH TABLE

PWM DUTYCYCLE

CYLINDERREFERENCE

80 %50 %80 %80 %80 %50 %50 %80 %

NORMAL OPERATIONNOCYL. NO. 1NONOCYL. NO. 2NONOCYL. NO. 7

CYL. NO. 1REFERENCE

DES TIMING

DELAY

60 BTDC (EEPROM)

NO. 1INJECTION

ASSUMED TDC

CYL. NO. 1ACTUAL TDC

(CALIBRATED)

CYL. NO. 2REFERENCE

CYL. NO. 2ACTUAL TDC

(CALIBRATED)

60 BTDC (EEPROM)

TABLEENTRY

ABCDEFGH

A B C D E F G H

TIMING WHEEL ROTATION

NO. 2INJECTION

DES TIMINGASSUMED

TDC

3229381812

996-GN998-BR999-WHF723-PKF724-PU

+V TIMINGDIGITAL RETURNPRIMARY ENGINE SPEEDTIMING CAL +TIMING CAL -

ECM

P2 J2

ABC

ORBKWH

SPEED/TIMINGSENSOR

TIMING CALIBRATIONCONNECTOR

P26

TIMING CALIBRATIONSENSOR

TIMING CALIBRATION SENSOR

P20 J20

P1 J1

12

REFERENCE EDGE TO TDC DISTANCE

REFERENCEEDGE ASSUMED

CYL. NO. 1 TDCACTUAL

CYL. NO. 1 TDC

TIMINGREFERENCE

OFFSET

MAXIMUM TIMING REFERENCE OFFSET 7 DEGREES

TIMING CALIBRATIONSENSOR SIGNAL

TIMINGWHEEL

TIMING CALIBRATION

7

-7 +7

0 1 2 3 4

C

U

R

R

E

N

T

F

L

O

W

TIME (MILLISECONDS)

5

PULL-IN PEAK CURRENT

HOLD-IN PEAK CURRENT

INJECTION CURRENT WAVEFORMONE CYCLE

Speed Control Fuel Limiting Injection Timing

Ether Injection Injector Cold Mode Cutout

FUEL SYSTEM COLD MODES

FUEL SYSTEM LIMITS

Cranking Fuel Limit

Cold Mode Limit

Fuel Ratio

Maximum Torque

Maximum Horsepower

FUEL SYSTEM DERATES

Automatic Altitude Compensation

Automatic Filter Compensation

High and Low Boost Derate

Engine Warning Derate

FUEL SUPPLY SYSTEM

FUEL TANK

PRIMARYFUEL

FILTER


(2 MICRON)

ENGINEBLOCK

OIL RENEWALINJECTOR

FUELPRESSURE

REGULATOR

FUELTRANSFER

PUMPFUELHEATER

ECM

3516B FUEL SUPPLY CIRCUIT (793C)

PRIMING PUMP SUPPLY

FUELDIFFERENTIAL

PRESSURESWITCH

CYLINDERHEAD

ENGINEBLOCK

MUI EUI

CYLINDER HEADSMUI AND EUI

PRIMARYFILTER

TRANSFERPUMP

SECONDARYFILTER

FUEL TANK

ELECTRONICUNIT INJECTOR

ECM

FUELTANK

FUELPRESSURE

REGULATOR

3500B SYSTEM POWER SUPPLIES

ECM: 24 VOLTS

INJECTORS: 105 VOLTS

ANALOG SENSORS: 5 VOLTS

SPEED/TIMING SENSORS: 12.5 VOLTS

DIGITAL SENSORS: 8 VOLTS

WASTEGATE CONTROL SOLENOID: 0 - 24 VOLTS

GROUNDBOLT

(FRAME)

15 AMPBREAKER

24 VJ3/P3 MACHINE

INTERFACECONNECTOR8/12/16

INJECTORS

GROUND BOLT (ENGINE)

P26 T/C CONNECTOR


J2

J1

ECM

BATTERY

113-OR


DISCONNECTSWITCH

KEY STARTSWITCH

ECM POWER SUPPLY BLOCK DIAGRAM

0511040623

ECM

(-) BATTERY(+) BATTERY

KEY SWITCH ON

229-BK-14229-BK-14150-RD-14150-RD-14 113-OR

24 VOLTS DC

(+)

(-)

ENGINE BLOCKGROUND BOLT

BREAKER

ENGINE BATTERYAND CHARGING

SYSTEM

R

CSB ST

OFF

308-YL

200-BK

105-RD

KEY START SWITCH

112-PU

117-RD

113-OR

15 A

10 AMP

P1 J1

ECM POWER SUPPLY CIRCUIT

MACHINE INTERFACECONNECTOR

12

26P3 J3

713

19

23

29

12

18

22

28

34

1 2 3 4 5 6

35 36 37 38 39 40

7

13

19

23

29

12

18

22

28

34

1 2 3 4 5 6

35 36 37 38 39 40

ECM CONNECTORS40 PINS, WIRE SIDE

P2 P1

3229381812

996-GN998-BR999-WH

+V TIMINGDIGITAL RETURNENGINE SPEEDTIMING CAL +TIMING CAL -

ECM

P2 J2

ABC

ORBKWH

SPEED/TIMINGSENSOR

SPEED/TIMING SENSOR POWER SUPPLY12.5 1 VOLTS

P20 J20

P1 J1

160532

A701-GYF726-YLA703-BRF726-YL

P2 J2

3512B INJECTOR WIRING SCHEMATIC

SOLENOID 1 POWERSOLENOID 1/3 RETURNSOLENOID 3 POWER

ECM

401134

A702-PUF727-BUA704-GNF727-BU


321738

A705-BUF728-BRA707-PUF728-BR


282122

A706-GYF729-GNA708-BRF729-GN


372731

A709-ORF730-GYA711-PUF730-GY


183312

A710-GYF731-ORA712-BRF731-OR


SOL 1

SOL 3

J52/P52

SOL 2

SOL 4

J56/P56

SOL 5

SOL 7

J53/P53

SOL 6

SOL 8

J57/P57

SOL 9

SOL 11

J54/P54

1234

SOL 10

SOL 12

J58/P58

INJECTORSOLENOIDS

1234

1234

1234

1234

1234

P22 J22

ENGINE COOLANTTEMPERATURE SENSOR

FILTERED OILPRESSURE SENSOR

+V ANALOGANALOG RETURNSIGNAL


P23 J23

TURBO OUTLETPRESSURE SENSOR


P25 J25

RIGHT TURBO INLET PRESSURE SENSOR


P27 J27

ATMOSPHERICPRESSURE SENSOR


P28 J28

LEFT TURBO INLETPRESSURE SENSOR


3630

3500B ANALOG SENSORPOWER SUPPLY

P1 J1

P43 J43


CRANKCASEPRESSURE SENSOR

P48 J48


UNFILTERED OILPRESSURE SENSOR

ABC

ABC

ABC

ABC

ABC

ABC

ABC

J21 P21

5 0.5 VOLTS

+V ANALOG SUPPLYANALOG RETURN

ECM

ABC

+ V DIGITAL SUPPLY- V DIGITAL RETURN

2935

DIGITAL SENSORPOWER SUPPLY

P1 J1

ABC

J31 P31+V DIGITAL

DIGITAL RETURNSIGNAL

RIGHT EXHAUST TEMPERATURE SENSOR

ABC

J35 P35THROTTLE

POSITION SENSOR+V DIGITAL


8 0.5 VOLTS

ABC

J30 P30+V DIGITAL


LEFT EXHAUST TEMPERATURE SENSOR

ABC

J84 P84+V DIGITAL


FAN SPEED SENSOR

ECM

WASTEGATE CONTROLPWM DRIVER & SOLENOID RETURN

2935

P2 J2

AB

J41 P41

WASTEGATE CONTROLSOLENOID VALVE

SUPPLY RETURN

WASTEGATE CONTROL SOLENOIDPOWER SUPPLY0 TO 1.04 Amps PWM

ECM

3500B ELECTRONIC

SENSORS AND SYSTEMS

TOPRELUBRICATION

PUMP

+ BATTERY

GROUNDBOLT

15 AMPBREAKER

KEY STARTSWITCH

24 V

P20/J20SPEED/TIMING

SENSOR


CONNECTOR

COOLANTTEMPERATURE

SENSOR

8/12/16INJECTORS

GROUND BOLT

P26 T/C CONNECTOR


J2

J1

ECM


SENSOR


SENSOR

CRANKCASEPRESSURE

SENSOR

J29/P29


SENSOR

J25/P25

LOW OILLEVEL

SWITCH

ATMOSPHERICPRESSURE

SENSOR


PRESSURE SWITCH

TURBOCHARGEROUTLET

PRESSURE SENSOR

J23/P23

COOLANTFLOW

SWITCH


SENSOR

J22/P22

LEFTTURBOCHARGER

EXHAUSTTEMPERATURE

SENSOR

RIGHTTURBOCHARGER

EXHAUSTTEMPERATURE

SENSOR


SENSOR

J28/P28

J35/P35





GROUNDLEVEL

SHUTDOWNSWITCH

BATTERY


A/C ONSWITCH

FAN SPEED SENSOR

+ BATTERY

RELAYCYLINDER

ENGINE

ETHER START VALVE

STARTINGAID SWITCH

J21/P21

J32/P32

J105/P105

J106/P106

J47/P47

P30/J30

J27/P27

J48/P48

P84/J84

P41/J41

308-YL

113-OR



DISCONNECTSWITCH


15 AMPBREAKER

COOLANTTEMPERATURE

SENSOR


RELAY

J21/P21

J47/P47

J103/P103

J113/P113

P31/J31


P20/J20SPEED/TIMING

SENSOR

8/12/16INJECTORS

GROUND BOLT

P26 T/C CONNECTOR


J2

J1

ECM

SPEED/TIMING SENSOR

ANALOG SENSORS

Aftercooler temperature sensor

Oil pressure sensors

Turbocharger outlet (boost) sensor

Turbocharger inlet pressure sensors

Atmospheric pressure sensor

Coolant temperature sensor

Crankcase pressure sensor

P20/J20SPEED/TIMING

SENSOR

COOLANTTEMPERATURE

SENSOR

8/12/16INJECTORS

GROUND BOLT

P26 T/C CONNECTORJ4/P4 THROUGH

J19/P19

J2

J1

ECM

J21/P21

COOLANT TEMPERATURE SENSOR

P20/J20SPEED/TIMING

SENSOR

COOLANTTEMPERATURE

SENSOR

8/12/16INJECTORS

GROUND BOLT

P26 T/C CONNECTOR


J2

J1

ECM


SENSOR

J21/P21

J32/P32

AFTERCOOLER TEMPERATURE SENSOR

OIL PRESSURE SENSORS

P20/J20SPEED/TIMING

SENSOR


CONNECTOR

COOLANTTEMPERATURE

SENSOR

8/12/16INJECTORS

GROUND BOLT


J2

J1

ECM


SENSOR


SENSOR


SENSOR

J22/P22

J21/P21

J32/P32

J48/P48

T/CCONNECTOR

P26

OI

L

P

R

E

S

S

U

R

E

I

N

k

P

a

600 700 800 900 1000 1100 1200 1300 1400 1500 1600 1700 180060

80

100

120

140

160

180

200

220

240

260

280

300

ENGINE RPM

OIL PRESSURE MAP

1900

320

340

8.7

11.6

14.5

17.4

20.3

23.2

26.1

29

31.9

34.8

37.7

40.6

43.5

46.4

49.3

O

I

L

P

R

E

S

S

U

R

E

I

N

P

S

I

kPa x 0.145 = PSI

2000

P20/J20SPEED/TIMING

SENSOR

COOLANTTEMPERATURE

SENSOR

8/12/16INJECTORS GROUND BOLT

P26


J2

J1

ECM


SENSOR


SENSOR

ATMOSPHERICPRESSURE

SENSOR


SENSOR

J22/P22

J21/P21

J32/P32

J27/P27

J48/P48

T/CCONNECTOR

ATMOSPHERIC PRESSURE SENSOR

100%

98%

96%

94%

92%

90%

88%

86%

84%

82%

80%

78%

76%

74%

77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53

8,210

8,920

9,630

10,340

11,050

11,760

12,470

13,890

14,600

15,310

16,020

16,730

17,440

13,180

7,500

72%

ENGINE POWER DERATING MAPACCORDING TO ATMOSPHERIC PRESSURE

ATMOSPHERIC PRESSURE IN kPa

P

E

R

C

E

N

T

O

F

F

U

L

L

L

O

A

D

P

O

W

E

R

A

L

T

I

T

U

D

E

I

N

F

E

E

T

P20/J20SPEED/TIMING

SENSOR

COOLANTTEMPERATURE

SENSOR

8/12/16INJECTORS

GROUND BOLT

P26


J2

J1

ECM


SENSOR


SENSOR


SENSOR

J25/P25

ATMOSPHERICPRESSURE

SENSOR


SENSOR

J22/P22


SENSOR

J28/P28

J21/P21

J32/P32

J27/P27

J48/P48

TURBOCHARGERINLET

PRESSURESENSORS

T/CCONNECTOR

CAT

AUTOMATIC AIR FILTER COMPENSATION

TURBOCHARGERINLET PRESSURE

SENSOR

ATMOSPHERICPRESSURE

SENSOR

Filter differential pressure calculated with formula:Atmospheric sensor pressure - Turbo sensor pressure = PFuel limited 2% per 4 inches H20 to max 20%

P20/J20SPEED/TIMING

SENSOR

COOLANTTEMPERATURE

SENSOR

8/12/16INJECTORS

GROUND BOLT

P26 T/C CONNECTOR


J2

J1

ECM


SENSOR


SENSOR


SENSOR

J25/P25

ATMOSPHERICPRESSURE

SENSOR

TURBOCHARGEROUTLET

PRESSURE SENSOR

J23/P23


SENSOR

J22/P22


SENSOR

J28/P28

J21/P21

J32/P32

J27/P27

J48/P48TURBOCHARGER

OUTLETPRESSURE

SENSOR

P20/J20SPEED/TIMING

SENSOR

COOLANTTEMPERATURE

SENSOR

8/12/16INJECTORS

GROUND BOLT

P26 T/C CONNECTOR


J2

J1

ECM


SENSOR


SENSOR

CRANKCASEPRESSURE

SENSOR

J29/P29


SENSOR

J25/P25

ATMOSPHERICPRESSURE

SENSOR

TURBOCHARGEROUTLET

PRESSURE SENSOR

J23/P23


SENSOR

J22/P22


SENSOR

J28/P28

J21/P21

J32/P32

J27/P27

J48/P48

CRANKCASEPRESSURE

SENSOR

P20/J20SPEED/TIMING

SENSOR

COOLANTTEMPERATURE

SENSOR

8/12/16INJECTORS

GROUND BOLT

P26 T/C CONNECTOR


J2

J1

ECM


SENSOR


SENSOR

CRANKCASEPRESSURE

SENSOR

J29/P29


SENSOR

J25/P25

LOW OILLEVEL

SWITCH

ATMOSPHERICPRESSURE

SENSOR


PRESSURE SWITCH

TURBOCHARGEROUTLET

PRESSURE SENSOR

J23/P23

COOLANTFLOW

SWITCH


SENSOR

J22/P22


SENSOR

J28/P28

J21/P21

J32/P32

J105/P105

J106/P106

J47/P47

J27/P27

J48/P48

ENGINESWITCHES

24

ECM

LOW OILLEVEL

SWITCH

P1 J1

LOW OIL LEVEL

2629

COOLANT FLOWDIGITAL RETURN

F719-BR998-BR

J105 P105

12

SIGNALDIGITAL RETURN

COOLANTFLOW

SWITCH

412-BU998-BR

J47 P47

12


17 FUEL FILTER SWFUEL FILTER

DIFFERENTIALPRESSURE

SWITCH

F725-WH998-BR

J106 P106

12


EUI SWITCH CIRCUITS

Wastegate control

Exhaust temperature

Throttle position

DIGITAL SENSORS AND CIRCUITS

P20/J20SPEED/TIMING

SENSOR

COOLANTTEMPERATURE

SENSOR

8/12/16INJECTORS

GROUND BOLT

P26 T/C CONNECTOR


J2

J1

ECM


SENSOR


SENSOR

CRANKCASEPRESSURE

SENSOR

J29/P29


SENSOR

J25/P25

LOW OILLEVEL

SWITCH

ATMOSPHERICPRESSURE

SENSOR


PRESSURE SWITCH

TURBOCHARGEROUTLET

PRESSURE SENSOR

J23/P23

COOLANTFLOW

SWITCH


SENSOR

J22/P22


SENSOR

J28/P28


J21/P21

J32/P32

J105/P105

J106/P106

J47/P47

J27/P27

J48/P48

WASTEGATECONTROLSOLENOID

P20/J20SPEED/TIMING

SENSOR

COOLANTTEMPERATURE

SENSOR

8/12/16INJECTORS

GROUND BOLT

P26 T/C CONNECTOR


J2

J1

ECM


SENSOR


SENSOR

CRANKCASEPRESSURE

SENSOR

J29/P29


SENSOR

J25/P25

LOW OILLEVEL

SWITCH

ATMOSPHERICPRESSURE

SENSOR


PRESSURE SWITCH

TURBOCHARGEROUTLET

PRESSURE SENSOR

J23/P23

COOLANTFLOW

SWITCH


SENSOR

J22/P22

LEFTTURBOCHARGER

EXHAUSTTEMPERATURE

SENSOR

RIGHTTURBOCHARGER

EXHAUSTTEMPERATURE

SENSOR


SENSOR

J28/P28


J21/P21

J32/P32

J105/P105

J106/P106

J47/P47

P30/J30

P31/J31

J27/P27

J48/P48

EXHAUSTTEMPERATURE

SENSORS

GROUNDBOLT

15 AMPBREAKER

KEY STARTSWITCH

24 V

P20/J20SPEED/TIMING

SENSOR


CONNECTOR

COOLANTTEMPERATURE

SENSOR

8/12/16INJECTORS

GROUND BOLT

P26 T/C CONNECTOR


J2

J1

ECM


SENSOR


SENSOR

CRANKCASEPRESSURE

SENSOR

J29/P29


SENSOR

J25/P25

LOW OILLEVEL

SWITCH

ATMOSPHERICPRESSURE

SENSOR


PRESSURE SWITCH

TURBOCHARGEROUTLET

PRESSURE SENSOR

J23/P23

COOLANTFLOW

SWITCH


SENSOR

J22/P22

LEFTTURBOCHARGER

EXHAUSTTEMPERATURE

SENSOR

RIGHTTURBOCHARGER

EXHAUSTTEMPERATURE

SENSOR


SENSOR

J28/P28

J35/P35



BATTERY

J21/P21

J32/P32

J105/P105

J106/P106

J47/P47

P30/J30

P31/J31

J27/P27

J48/P48308-YL

113-OR


DISCONNECTSWITCH

90%

ON

OFF

ON

OFF

ON

OFF

10%

50%

DUTYCYCLE

DUTY CYCLE = PERCENT OF TIME ON VS PERCENT OF TIME OFF

1 CYCLE

= 90%

DUTYCYCLE

= 50%

DUTYCYCLE

= 10%

PULSE WIDTH MODULATED SIGNALS

GROUNDBOLT

15 AMPBREAKER

KEY STARTSWITCH

24 V

P20/J20SPEED/TIMING

SENSOR


CONNECTOR

COOLANTTEMPERATURE

SENSOR

8/12/16INJECTORS

GROUND BOLT

P26 T/C CONNECTOR


J2

J1

ECM


SENSOR


SENSOR

CRANKCASEPRESSURE

SENSOR

J29/P29


SENSOR

J25/P25

LOW OILLEVEL

SWITCH

ATMOSPHERICPRESSURE

SENSOR


PRESSURE SWITCH

TURBOCHARGEROUTLET

PRESSURE SENSOR

J23/P23

COOLANTFLOW

SWITCH


SENSOR

J22/P22

LEFTTURBOCHARGER

EXHAUSTTEMPERATURE

SENSOR

RIGHTTURBOCHARGER

EXHAUSTTEMPERATURE

SENSOR


SENSOR

J28/P28

J35/P35




BATTERY

J21/P21

J32/P32

J105/P105

J106/P106

J47/P47

P30/J30

P31/J31

J27/P27

J48/P48308-YL

113-OR

THROTTLE BACK-UPSWITCH

DISCONNECTSWITCH

GROUNDBOLT

15 AMPBREAKER

KEY STARTSWITCH

24 V

P20/J20SPEED/TIMING

SENSOR


CONNECTOR

COOLANTTEMPERATURE

SENSOR

8/12/16INJECTORS

GROUND BOLT

P26 T/C CONNECTOR


J2

J1

ECM


SENSOR


SENSOR

CRANKCASEPRESSURE

SENSOR

J29/P29


SENSOR

J25/P25

LOW OILLEVEL

SWITCH

ATMOSPHERICPRESSURE

SENSOR


PRESSURE SWITCH

TURBOCHARGEROUTLET

PRESSURE SENSOR

J23/P23

COOLANTFLOW

SWITCH


SENSOR

J22/P22

LEFTTURBOCHARGER

EXHAUSTTEMPERATURE

SENSOR

RIGHTTURBOCHARGER

EXHAUSTTEMPERATURE

SENSOR


SENSOR

J28/P28

J35/P35




GROUNDLEVEL

SHUTDOWNSWITCH

BATTERY

J21/P21

J32/P32

J105/P105

J106/P106

J47/P47

P30/J30

P31/J31

J27/P27

J48/P48308-YL

113-OR

GROUNDLEVEL

SHUTDOWNSWITCH

DISCONNECTSWITCH

USER SHUTDOWN1

P2 J2


12

J3

USER SHUTDOWNDEVICE

ECM

25294022

ECMETHER SWITCH

315-GN 317-YL

ETHER REQUESTDIGITAL RETURN

ETHER ONETHER HOLD

P1 J1

F720-GN998-BR710-BR707-WH

ETHER ON RELAY200-BK

P37 J37

ETHERSOLENOID VALVE

ETHER HOLD RELAY

315-GN

F707-WH

317-YL

K984-GY

START AIDRESISTOR

998-BR

12

+24V

ETHER INJECTION SYSTEM

GROUNDSTUD

15 AMPBREAKER

KEY STARTSWITCH

24 V

P20/J20SPEED/TIMING

SENSOR


CONNECTOR

COOLANTTEMPERATURE

SENSOR

8/12/16INJECTORS

GROUND BOLT

P26 T/C CONNECTOR


J2

J1

ECM


SENSOR


SENSOR

CRANKCASEPRESSURE

SENSOR

J29/P29


SENSOR

J25/P25

LOW OILLEVEL

SWITCH

ATMOSPHERICPRESSURE

SENSOR


PRESSURE SWITCH

TURBOCHARGEROUTLET

PRESSURE SENSOR

J23/P23

COOLANTFLOW

SWITCH


SENSOR

J22/P22

LEFTTURBOCHARGER

EXHAUSTTEMPERATURE

SENSOR

RIGHTTURBOCHARGER

EXHAUSTTEMPERATURE

SENSOR


SENSOR

J28/P28

J35/P35




USER SHUTDOWN

GROUNDLEVEL

SHUTDOWNSWITCH

BATTERY


A/C ONSWITCH

FAN SPEED SENSOR

+ BATTERY

RELAY

CYLINDER

ENGINE

ETHER START VALVE

STARTINGAID SWITCH

J21/P21

J32/P32

J105/P105

J106/P106

J47/P47

P30/J30

P31/J31

J27/P27

J48/P48

P84/J84

P41/J41

308-YL

113-OR

DEMAND FANCONTROL

DISCONNECTSWITCH

VIMS DISPLAY MODULES

SERVICE TOOLCONNECTOR

CAT DATA LINK

V

I

M

S

M

A

I

N

M

O

D

U

L

E

ADEM IIELECTRONIC

CONTROLMODULE

(ECM)

LAPTOPCOMPUTER

CATELECTRONIC TECHNICIAN

COMMUNICATIONADAPTER

TYPICAL CAT DATA LINK CIRCUIT

89

POWER TRAIN CONTROLMODULE

Cat Data Link +Cat Data Link -

2324

VIMS

Cat Data Link +Cat Data Link -

DEHJ

76

3132

9371

893-GN892-BRE794-YLE-793-BU

J42 P3 J3 P1 J1 ECM

Cat Data Link +Cat Data Link -ATA Data Link +ATA Data Link -

SERVICE TOOLCONNECTOR

MACHINE INTERFACECONNECTOR

3429

ECM

337-WH

PRELUBRICATION SYSTEM

PRELUBRICATIONDIGITAL RETURN

P1 J1

F709-BU998-BR

PRELUBRICATIONRELAY 200-BK

140-BU12

PUMPRELAY

+24V

+

MOTOR

PRELUBRICATIONMOTOR

LOGGED EVENTS

APPLICATION SPECIFIC

SYSTEMS

FUEL TANK

PRIMARYFUEL

FILTER


(2 MICRON)

ENGINEBLOCK

OIL RENEWALINJECTOR

FUELPRESSURE

REGULATOR

FUELTRANSFER

PUMP

FUELHEATER

ECM

CYLINDERHEAD

3516B OIL RENEWAL CIRCUIT (793C)

PRIMING PUMP SUPPLY

TOPRELUBRICATION

PUMP

+ BATTERY

GROUNDBOLT

15 AMPBREAKER

KEY STARTSWITCH

24 V

P20/J20SPEED/TIMING

SENSOR


CONNECTOR

COOLANTTEMPERATURE

SENSOR

8/12/16INJECTORS

GROUND BOLT

P26 T/C CONNECTOR


J2

J1

ECM


SENSOR


SENSOR

CRANKCASEPRESSURE

SENSOR

J29/P29


SENSOR

J25/P25

LOW OILLEVEL

SWITCH

ATMOSPHERICPRESSURE

SENSOR


PRESSURE SWITCH

TURBOCHARGEROUTLET

PRESSURE SENSOR

J23/P23

COOLANTFLOW

SWITCH


SENSOR

J22/P22

LEFTTURBOCHARGER

EXHAUSTTEMPERATURE

SENSOR

RIGHTTURBOCHARGER

EXHAUSTTEMPERATURE

SENSOR


SENSOR

J28/P28

J35/P35





GROUNDLEVEL

SHUTDOWNSWITCH

BATTERY


A/C ONSWITCH

FAN SPEED SENSOR

+ BATTERY

RELAYCYLINDER

ENGINE

ETHER START VALVE

STARTINGAID SWITCH

J21/P21

J32/P32

J105/P105

J106/P106

J47/P47

P30/J30

J27/P27

J48/P48

P84/J84

P41/J41

308-YL

113-OR




DISCONNECTSWITCH


15 AMPBREAKER

COOLANTTEMPERATURE

SENSOR


RELAY

J21/P21

J47/P47

J103/P103

J113/P113

P31/J31

3500 engine controls - electronic unit injection (slides).pdf

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