777d.pdf
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PressureSymbol
T
TemperatureSymbol
LevelSymbol
FlowSymbol
Circuit BreakerSymbol
Harness and Wire Symbols
Symbols
Symbols and Definitions
Harness And Wire Electrical Schematic Symbols
Fuse: A component in an electrical circuit that will open the circuit if too much current flows through it.
Switch (Normally Open): A switch that will close at a specified point (temp, press, etc.). The circle indicates that the component has screw terminals and a wire can be disconnected from it.
Switch (Normally Closed): A switch that will open at a specified point (temp, press, etc.).No circle indicates that the wire cannot be disconnected from the component.
Ground (Wired): This indicates that the component is connected to a grounded wire. Thegrounded wire is fastened to the machine.
Ground (Case): This indicates that the component does not have a wire connected to ground. It is grounded by being fastened to the machine.
Reed Switch: A switch whose contacts are controlled by a magnet. A magnet closes the contacts of a normally open reed switch; it opens the contacts of a normally closed reed switch.
Sender: A component that is used with a temperature or pressure gauge. The sender measures the temperature or pressure. Its resistance changes to give an indication to the gauge of the temperature or pressure.T
Relay (Magnetic Switch): A relay is an electrical component that is activated by electricity. It has a coil that makes an electromagnet when current flows through it. The electromagnet can open or close the switch part of the relay.
Magnetic Latch Solenoid: A magnetic latch solenoid is an electrical component that is activated by electricity and held latched by a permanent magnet. It has two coils (latch and unlatch)that make electromagnet when current flows through them. It also has an internal switch that places the latch coil circuit open at the time the coil latches.
Solenoid: A solenoid is an electrical component that is activated by electricity. It has a coil that makes an electromagnet when current flows through it. The electromagnet can open or close a valve or move a piece of metal that can do work.
12
AG-C4111-7898
L-C123E-5179
9X-1123 Component Part Number
Pin or Socket Number
Part Number: for Connector ReceptaclePart Number: for Connector Plug
Harness Identification Letter(s):(A, B, C, ..., AA, AB, AC, ...)
Plug
325-AG135 PK-14
Wire ColorWire Gauge
Receptacle
1
1
2
2Sure-Seal connector: Typical representationof a Sure-Seal connector. The plug and receptacle contain both pins and sockets.
Deutsch connector: Typical representationof a Deutsch connector. The plug contains all sockets and the receptacle contains all pins.
Fuse (5 Amps)
5A
Harness identification code:This example indicates wire group 325,
wire 135 in harness "AG".
L-C123E-5179
Wire, Cable, or Harness Assembly Identification: Includes Harness Identification Letters and Harness Connector Serialization Codes (see sample).
Harness Connector Serialization Code: The "C" stands for "Connector" and the number indicates which connector in the harness (C1, C2, C3, ...).
2011 CaterpillarAll Rights Reserved
Printed in U.S.A.
UENR2137-01August 2011
771D Quarry Truck
Electrical System771D:BCA1-UP6JR1-UP6YS1-UP
777D:AGC1-UP3PR1-UPFKR1-UP2YW1-UPAGY1-UP
CAT Detect Object Detection777D Off-Highway Truck
Event Code Condition
E875 Voltage Below Normal
E786 Voltage Above Normal
E1139 Radar Blockage Detected
E1140 Radar Blockage Detected
E1141 Radar Blockage Detected
E1142 Radar Blockage Detected
E1143 Radar Blockage Detected
E1144 Radar Blockage Detected
E1145 Radar Blockage Detected
E1146 Radar Blockage Detected
E1147 Radar Blockage Detected
E1148 Radar Blockage Detected
E1149 Radar Blockage Detected
E1150 Radar Blockage Detected
Event CodesObject Detection System
Related Electrical Service ManualsForm NumberTitle
Object Detection System: UENR1274
CID Component0247 SAE J1939 Data Link0248 CAT Data Link2348 SAE J1939 Data Link3313 Short Range Object Detection Sensor #1 (Front Left)3314 Short Range Object Detection Sensor #2 (Front Right)3315 Short Range Object Detection Sensor #3 (Rear Left)3316 Short Range Object Detection Sensor #4 (Rear Right)3317 Medium Object Detection Sensor #1 (Front Left C1)3318 Medium Object Detection Sensor #2 (Front Right C1)3319 Medium Object Detection Sensor #3 (Left Side Top C1)3320 Medium Object Detection Sensor #4 (Left Side Bottom C1)3321 Medium Object Detection Sensro #5 (Rear Left C2)3322 Medium Object Detection Sensor #6 (Rear Right C2)3323 Medium Object Detection Sensor #7 (Right Side Top C2)3324 Medium Object Detection Sensor #8 (Right Side Bottom C2)3325 Short Range Object Detection Sensor #1 Power Supply (Front Left C1)3326 Short Range Object Detection Sensor #2 Power Supply (Front Right C1) 3327 Short Range Object detection Sensor #3 Power Supply (Rear Left C2)3328 Short Range Object Detection Sensor #4 Power Supply (Rear Right C2)3329 Meduim Range Object Detection Sensor #1 Power Supply (Front Left C1)3330 Meduim range Object Detection Sensor #2 Power Supply (Front Right C1)3331 Medium Range Object Detection Sensor #3 Power Supply (Left Side Top C1)3332 Medium Range Object Detection Sensor #4 Power Supply (Left Side Bottom C1)3333 Medium Range Object Detection Sensor #5 Power Supply (Rear Left C2)3334 Medium Range Object Detection Sensor #6 Power Supply (Right Rear C2)3335 Medium Range Object Detection Sensor #7 Power Supply (Right Side Top)3336 Medium Range Object Detection Sensor #8 Power Supply (Right Side Bottom)
The CID is a diagnostic code that indicates which circuit is faulty. The MID is a diagnostic code that indicates which electronic control module
diagnosed the fault.
Component Identifiers (CID)Module Identifier (MID)
Object Detection System(MID No. 134)
Failure Mode Identifiers (FMI)FMI No. Failure Description
0 Data valid but above normal operational range.1 Data valid but below normal operational range.2 Data erratic, intermittent, or incorrect.3 Voltage above normal or shorted high.4 Voltage below normal or shorted low.5 Current below normal or open circuit.6 Current above normal or grounded circuit.7 Mechanical system not responding properly.8 Abnormal frequency, pulse width, or period.9 Abnormal update.10 Abnormal rate of change.11 Failure mode not identifiable.12 Bad device or component.13 Out of calibration.14 Parameter failures.15 Parameter failures.16 Parameter not available.17 Module not responding.18 Sensor supply fault.19 Condition not met.20 Parameter failures.
The FMI is a diagnostic code that indicates what type of failure has occurred.
Part No. Resistance (Ohms)174-3016 Resistor: Can Data Link 120 10%
Resistor, Sender and Solenoid SpecificationsComponent Description
At room temperature unless otherwise noted.
Connector Number Schematic LocationCONN 1 D-7CONN 2 B-5CONN 3 C-5CONN 4 D-5CONN 5 D-5CONN 6 E-5CONN 7 D-5
Connector Location
The connectors shown in this chart are for harness to harness connectors. Connectors that join a harness to a component are generally located at or near the component. See the Component Location Chart.
Component Schematic LocationBreaker - Object Detection D-5Camera - Front B-8Camera - Left B-8Camera - Rear A-8Camera - Right A-9Converter - 24V/12V D-3Display B-3Fuse - 15A D-4Ground - Cab D-5Lamp - Camera (Left) E-1Lamp - Camera (Right) B-1Radar - Long Range (Front) C-1Radar - Long Range Side (Left) E-1Radar - Long Range Side (Rear) C-9Radar - Long Range Side (Right) C-1Relay - Lamp C-3Relay - Main Power D-5Resistor - Terminating CAN 1A C-1Resistor - Terminating CAN 1B C-9Resistor - Terminating CAN 2B #1 E-1Resistor - Terminating CAN 2B #2 B-1
Component Location
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Components are shown installed on a fully operable machine with the key and engine off, transmission shifterin neutral and with parking brake set.Refer to the appropriate Service Manual for Troubleshooting, Specifications and Systems Operations.
SCHEMATIC PART NUMBER: 361-4243, CHANGE: 01, VERSION: -
THIS SCHEMATIC IS FOR THE 771D QUARRY TRUCK AND 777D OFF-HIGHWAY TRUCKCAT DETECT OBJECT DETECTION ELECTRICAL SYSTEMMEDIA NUMBER: UENR2137-01
A
B
C
D
E
123456789
A
B
C
D
E
123456789
ABBREVRDWHORYLPKBKGYPUBRGNBU
COLORRED
WHITEORANGEYELLOW
PINKBLACKGRAY
PURPLEBROWNGREENBLUE
SYMBOL DESCRIPTION
BLADE, SPADE, RING OR SCREWTERMINAL
CIRCUIT CONNECTED
CIRCUIT NOT CONNECTED
ELECTRICAL CONNECTION TOMACHINE STRUCTURE
INTERNAL ELECTRICAL CONNECTIONTO SURFACE OF COMPONENT
CONNECTOR
ATCH WIRE, CABLE, COMPONENT
SPLICE
CIRCUIT GROUPING DESIGNATIONH#
WIRE GROUP COLOR DESCRIPTIONSGROUND CIRCUITWIRES THAT HAVE SYSTEM VOLTAGE WHEN THE KEY SWITCH IS OFFWIRES THAT HAVE SYSTEM VOLTAGE WHEN THE KEY SWITCH IS ONVOLTAGE CONVERTER OUTPUT CIRCUITCAT DATA LINKCAN 1 DATA LINKCAN 2 DATA LINK
OTHER COLOR DESCRIPTIONSHIGHWAYS
PART NUMBER DESCRIPTION283-0657 3 METER VIDEO CABLE274-4477 5 METER VIDEO CABLE283-0658 7.5 METER VIDEO CABLE283-0659 9 METER VIDEO CABLE274-4478 11 METER VIDEO CABLE274-4479 16 METER VIDEO CABLE
IDENT PART NO. CHG LOC NOTE DESCRIPTIONF 361-5207 00 E-2 771D/777D FRONTR 361-5208 00 E-8 771D REART 361-5209 00 E-6 771D CHASSISCM 361-5211 00 D-4 771D/777D MAIN CABLT 361-1264 00 F-4 771D/777D LEFT SIDE PLATFORMRJ 361-1267 00 E-5 771D RIGHT SIDE JUMPERRT 361-1266 00 C-2 771D RIGHT SIDE PLATFORMT 363-8847 00 E-6 777D CHASSISR 361-0851 00 E-8 777D REARRT 373-1344 00 C-2 777D RIGHT SIDE PLATFORM
130-CM1 RD-12130-CM1 RD-12130-CM2 RD-14
130-CM2 RD-14
130-CM3 RD-14 130-CM3 RD-14
200-CM5 BK-14
200-CM5 BK-14
200-CM7 BK-14
200-CM7 BK-14
200-CM7 BK-14200-CM4 BK-14
200-CM4 BK-14
C234-R5 BK-18
C234-R5 BK-18C234-R6 BK-18
C234-R6 BK-18
C234-R2 BK-16
C234-R2 BK-16
C569-R1 YL-16
C569-R1 YL-16
K900-R19 YL-18
K900-R19 YL-18K900-R26 YL-18
K900-R26 YL-18
K900-R3 YL-18
K900-R3 YL-18
K990-R27 GN-18
K990-R27 GN-18K990-R34 GN-18
K990-R34 GN-18
K990-R4 GN-18
K990-R4 GN-18
C234-RT1 BK-16
C569-RT2 YL-16
F711-RT12 YL-18
F711-RT12 YL-18F711-RT14 YL-18
F711-RT14 YL-18
F711-RT3 YL-18F712-RT16 GN-18
F712-RT16 GN-18
F712-RT18 GN-18
F712-RT18 GN-18
F712-RT4 GN-18
C234-LT1 BK-16
C234-LT1 BK-16C569-LT2 YL-16
C569-LT2 YL-16F711-LT3 YL-18
F711-LT3 YL-18F711-LT15 YL-18
F711-LT15 YL-18
F712-LT4 GN-18
F712-LT4 GN-18F712-LT18 GN-18
F712-LT18 GN-18
308-CM8 YL-16
308-CM8 YL-16
308-CM8 YL-16
308-CM9 YL-16
308-CM9 YL-16
308-CM9 YL-16
C234-CM6 BK-14C234-CM6 BK-14
893-CM12 GN-16
893-CM12 GN-16
892-CM14 BR-16
892-CM14 BR-16892-CM15 BR-16
892-CM15 BR-16
892-CM10 BR-16
892-CM10 BR-16
893-CM13 GN-16
893-CM13 GN-16
893-CM11 GN-16
893-CM11 GN-16
C569-CM20 YL-14
C569-CM20 YL-14
C569-CM20 YL-14
K900-CM17 YL-18
K900-CM17 YL-18
K990-CM16 GN-18
K990-CM16 GN-18
F711-CM21 GN-18
F711-CM21 GN-18
F712-CM23 GY-18
F712-CM23 GY-18
892-A294 BR-16893-A293 GN-16
C234-T6 BK-14
C234-T6 BK-14
C234-T6 BK-14
C234-T5 BK-16
C234-T5 BK-16
C234-T7 BK-16
C234-T7 BK-16
C234-T8 BK-16
C234-T8 BK-16
C234-T1 BK-16
C234-T1 BK-16
C569-T10 YL-14
C569-T10 YL-14
C569-T10 YL-14C569-T9 YL-16
C569-T9 YL-16
C569-T11 YL-16
C569-T11 YL-16
C569-T12 YL-16
C569-T12 YL-16C569-T2 YL-16
C569-T2 YL-16
F711-T19 YL-18
F711-T19 YL-18
F711-T19 YL-18
F711-T17 YL-18
F711-T17 YL-18
F712-T20 GN-18
F712-T20 GN-18
F712-T20 GN-18
F712-T18 GN-18
F712-T18 GN-18
K900-T3 YL-18K900-T14 YL-18
K900-T14 YL-18
K990-T4 GN-18K990-T16 GN-18
K990-T16 GN-18
C234-F1 BK-16
C234-F1 BK-16
C569-F8 YL-16
C569-F8 YL-16
K900-F15 YL-18K990-F24 GN-18
K990-F24 GN-18
K900-T3 YL-18
K900-T3 YL-18
K990-T4 GN-18
K990-T4 GN-18
109-CM29 RD-12
109-CM29 MUST BE CONNECTED TO THE UNSWITCHED SIDE (109 OR)CONNECT TO THE MAIN EXISTING MAIN POWER RELAY
633-CM31 BU-14
633-CM31 BU-14
633-CM31 BU-14308-CM30 YL-16
308-CM30 YL-16
200-CM34 BK-14
200-CM34 BK-14
200-CM33 BK-16
200-CM33 BK-16
200-CM33 BK-16
C234-CM6 BK-14
633-T24 BU-14
633-T24 BU-14
633-T24 BU-14633-T25 BU-14
633-T25 BU-14
633-T26 BU-14
633-T26 BU-14
200-T21 BK-14
200-T21 BK-14
200-T21 BK-14
200-T22 BK-14
200-T22 BK-14
200-T23 BK-14
200-T23 BK-14
C234-RJ1 BK-16C569-RJ2 YL-16F711-RJ3 YL-16F712-RJ4 GN-18633-RJ5 BU-14200-RJ6 BK-14
200-LT20 BK-14
200-LT20 BK-14
200-LT20 BK-14
633-LT19 BU-14
633-LT19 BU-14
633-LT19 BU-14
633-RT19 BU-14
633-RT19 BU-14200-RT20 BK-14
200-RT20 BK-14
C234-RT1 BK-16C569-RT2 YL-16F711-RT3 YL-18F712-RT4 GN-18633-RT19 BU-14200-RT20 BK-14
CAMERA LAMP
RM636 AND RM579 (771D AND 777D-ALL CONFIGS)
MISC. REF. VIDEO CABLE PART NUMBERS
CONNECT TO A-C52PINS 5 & 6
C569-LT2 YL-16
C234-RT1 BK-16
C569-RT2 YL-16
K900-F15 YL-18
C569-F8 YL-16
K900-T31 YL-18
K900-T31 YL-18
K990-T32 GN-18
K990-T32 GN-18
C569-R1 YL-16
C234-F1 BK-16
C234-LT21 BR-16
C234-LT22 BR-16
C234-LT22 BR-16C234-LT21 BR-16
(155-2273 2 PIN DT) PINS 5 UNPLUG FROM A-C52(PRODUCT LINK)
CONNECT TO CM-C8& 6 AND
F711-LT24 YL-18
F712-LT26 GN-18
F711-LT24 YL-18F712-LT26 GN-18
K900-F2 YL-18K900-F3 YL-18
K990-F4 GN-18K990-F5 GN-18
K900-F2 YL-18
K900-F3 YL-18K990-F5 GN-18
K990-F4 GN-18
K990-CM16 GN-18K900-CM17 YL-18
F711-T40 YL-18
F712-T42 GN-18
F712-T42 GN-18
F711-T40 YL-18F712-T42 GN-18
308-CM40 YL-16
308-CM40 YL-16
308-FUSE2 YL-12
308-FUSE1 YL-12
695-CM25 OR-16
695-CM25 OR-16
251-8248
251-8248
F712-CM23 GY-18F711-CM21 GN-18
CAN 1 -+12V
MPIO 0
LR REAR RADAR365-1271
CAN 1 +-BATTERY
VIDEO SIGVIDEO GND+ 12 VDCFEED GND
REAR CAMERA336-6684
CAN 1 +
+12V MEMORY OUT
CAN 1 -
KEYSWITCH INPUT
DISPLAY355-9048
BATTERY -
POWER
CAN 2 -CAN 2 +
CDL +CDL -
USB
CH 1 VIDEO SIGCH 2 VIDEO SIG
VIDEO
CH 3 VIDEO SIGCH 4 VIDEO SIG
CH 1 VIDEO RTNCH 2 VIDEO RTNCH 3 VIDEO RTNCH 4 VIDEO RTNRTN CAMERA+V CAMERA
CAN 2 -+12V
LR LEFT SIDE RADAR365-1271
CAN 2 +-BATTERY
MPIO 1MPIO 0
CAN 2 -+12V
LR RIGHT SIDE RADAR A365-1271
CAN 2 +-BATTERY
CAN 1 -+12V
LR FRONT RADAR365-1271
CAN 1 +-BATTERY
10A
OBJ DET BKR6T-3644
CABGROUND
12
CM-C11552252
3456789101112
12
CM-C21552253
3456789101112
12
R-C12305010
3456
R-C21330973
ABC
CAN 1 TERM RES B174-3016
12
RT-C12305010
3456
CAN 2 TERM RES B 2174-3016
RT-C41330973
ABC
12
R-C33E3376
34
T-C11552272
12
LT-C32305010
3456
12
F-C32305010
3456
MAIN PWR RELAY241-8368
12
CM-C73E3364
CM-C81552269
123456789101112
VIDEO SIGVIDEO RTN+V CAMERARTN CAMERA
VIDEO SIGVIDEO RTN+V CAMERARTN CAMERA
VIDEO SIGVIDEO RTN+V CAMERARTN CAMERA
VIDEO SIGVIDEO RTN+V CAMERARTN CAMERA
CMPD CAMERA JUMMPER319-6830
LEFT CAMERA
FRONT CAMERA
REAR CAMERA
RIGHT CAMERA
REAR CAMERA CABLE274-4477VIDEO SIGVIDEO RTN+V CAMERARTN CAMERA
VIDEO SIGVIDEO GND+ 12 VDCFEED GND
FRONT CAMERA336-6684
VIDEO SIGVIDEO GND+ 12 VDCFEED GND
LEFT CAMERA336-6684
VIDEO SIGVIDEO GND+ 12 VDCFEED GND
RIGHT CAMERA336-6684
VIDEO SIGVIDEO RTN+V CAMERARTN CAMERA
CAB LEFT CAMERA CABLE
261-3223
VIDEO SIGVIDEO RTN+V CAMERARTN CAMERA
CAB FRONT CAMERA CABLE
261-3223
VIDEO SIGVIDEO RTN+V CAMERARTN CAMERA
CAB REAR CAMERA CABLE
261-3223
VIDEO SIGVIDEO RTN+V CAMERARTN CAMERA
CAB RIGHT CAMERA CABLE
261-3223VIDEO SIGVIDEO RTN+V CAMERARTN CAMERA
REF DES
VIDEO SIGVIDEO RTN+V CAMERARTN CAMERA
RIGHT CAMERA CABLE 2283-0658
LEFT CABLE BULKHEAD251-4243
FRONT CABLE BULKHEAD251-4243
REAR CABLE BULKHEAD251-4243
RIGHT CABLE BULKHEAD251-4243
12
T-C23E3382
3456
12
RJ-C11552273
3456
12
T-C41552272
34
1234
F-C13E3376
123456
RT-C33E3382
12
RJ-C21552273
3456
12
LT-C41552269
LEFT CAMERA LAMP219-6485
12
RT-C21552269
RIGHT CAMERA LAMP219-6485
VIDEO SIGVIDEO RTN+V CAMERARTN CAMERA
RIGHT CAMERA CABLE 3283-0658
VIDEO SIGVIDEO RTN+V CAMERARTN CAMERA
REF DES
VIDEO SIGVIDEO RTN+V CAMERARTN CAMERA
LEFT CAMERA CABLE 2283-0658
12345678910111213141516171819
T-C52130142
12345678910111213141516171819
CM-C92130143
123456
LT-C22305011
123456
RT-C52305011
+24V SWITCHED IN
+12V SWITCHED OUT
+24V BATTERY IN
GROUND
24V 12V-CONVERTER340-7161
12
CM-C41552273
3456
CAN 2 TERM RES B 1174-3016
LT-C51330973
ABC
CAN 1 TERM RES A174-3016
F-C21330973
ABC
12
T-C33E3382
3456
12
LT-C11552273
3456
12
CM-C163045284
FUSE113-8491
12
T-C61552273
3456
12
T-C71552273
3456
87a87
85
8630
LAMP RELAY3E-5239
15243
CM-C33E5519
FRONT CAMERA CABLE c0283-0658VIDEO SIGVIDEO RTN+V CAMERARTN CAMERA
FRONT CAMERA CABLE c1283-0658VIDEO SIGVIDEO RTN+V CAMERARTN CAMERA
FRONT CAMERA CABLE c2274-4477VIDEO SIGVIDEO RTN+V CAMERARTN CAMERA
CONN 1
CONN 2
CONN 3
CONN 4
CONN 5
CONN 6
CONN 7
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