Wire Description
Wire Description Wire Number
Wire Color
Wire Number
Wire Color
101
RD
BATTERY
313
GY
102
STARTER NO. 2 TO DIAGNOSTIC/RESISTOR TO DIAGNOSTIC
BU
HEAD LAMP
314
PU
103
STARTER RELAY NO. 2 OUTPUT
YL
DOME / DASH LAMP / PARK, TAIL LAMP
321
BR
105
BR
KEY SWITCH
322
106
WH
MAIN POWER RELAY / INPUT
323
107
WH
ENGINE SHUT DOWN
324
BU
DIFFERENTIAL LOCKUP SOLENOID
108
BU
MISC WIPER, DOME LAMP, CIGAR LIGHTER
325
PK
109
OR
ALTERNATOR
326
110
GN
WINDSHIELD WIPER SWITCH (RIGHT)
111
YL
WINDSHIELD WIPER SWITCH (LEFT)
112
PU
MAIN POWER RELAY / OUTPUT
113
OR
OPERATOR MONITOR PANEL
400
GN
114
GN
WARNING HORN (FORWARD)
403
115
PK
FLOOD LAMP (FRONT)
116
BR
FLOOD LAMP (REAR)
Description
Description
Wire Number
Wire Color
Wire Number
Wire Color
BACKUP ALARM / LAMP
500
BR
WINDSHIELD WIPER - FRONT (PARK)
702
OR
TRANSMISSION BRAKE SWITCH JUMPER
GY
WARNING HORN (FORWARD)
WH
FUEL TRANSFER PUMP POWER
501 502
GN
WINDSHIELD WIPER - FRONT (LOW)
703
BU
TRANSMISSION UP SOLENOID
OR
WINDSHIELD WIPER - FRONT (HIGH)
704
GY
FUEL PUMP RELAY OIL PRESS. SWITCH
TRANSMISSION DOWN SOLENOID
503
BR
WINDSHIELD WIPER - REAR (PARK)
705
PK
PU
TRANSMISSION LOCKUP CLUTCH SOL BASIC
KEY SWITCH “C” TERMINAL
504
YL
WINDSHIELD WIPER - REAR (LOW)
706
BR
327
TRANSMISSION RETARDER SWITCH
PK
SHUTDOWN SOLENOID
RD
SHUTDOWN MODULE OFF”
505
BU
WINDSHIELD WIPER - REAR (HIGH)
707
PU
328
TRANSMISSION BED RAISE SWITCH
506
PU
WINDSHIELD WASHER FRONT
708
YL
TRANSMISSION HOLD SWITCH
SERVICEMETER SWITCH
507
WH
WINDSHIELD WASHER REAR
709
OR
TRANSMISSION PICKUP POWER
GN
ALTERNATOR (R) TERMINAL
YL
WINDSHIELD WASHER-PRIMER
710
GN
TRANSMISSION SPEED PICKUP SIGNAL
404
YL
OPERATOR MON PANEL HYDRAULIC OIL TEMP
510 513
OR
AIR CONDITIONER COMPRESSOR
711
BR
TRANSMISSION LEVER CODE 1
405
GY
OPERATOR MON PANEL OIL PRESSURE
514
PU
AIR CONDITIONER CONDENSOR MOTOR
712
WH
TRANSMISSION LEVER CODE 2
515
GY
BLOWER MOTOR (HIGH)
713
OR
TRANSMISSION LEVER CODE 3
516
GN
BLOWER MOTOR (MEDIUM)
714
YL
TRANSMISSION LEVER CODE 4
517
BU
BLOWER MOTOR (LOW)
715
GN
TRANSMISSION LEVER CODE 5
519
PK
THERMOSTAT TO DRYER PRESSURE SWITCH
716
BU
TRANSMISSION LEVER CODE 6
520
WH
OPERA TOR AIR CONDITIONER SWITCH TO THERMOSTAT
720
PU
TRANSMISSION BRAKE SWITCH
521
YL
AIR COND SW TO RFGT SW
721
BR
TRANSMISSION GEAR CODE 1
WH
AIR COND COMPR TO THERMO SW
722
WH
TRANSMISSION GEAR CODE 2
Basic Machine Circuits (Continued)
Power Circuits
Monitoring Circuits
OPERATOR MON PANEL COOLANT TEMPERATURE OPERATOR MON PANEL CONV /RETARDER OIL TEMP OPERATOR MON PANEL BRAKE PRESS. (AIR)
Description Accessory Circuits
Control Circuits
117
YL
FLOOD LAMP (SIDE)
406
PU
118
GY
WINDSHIELD WIPER SWITCH (FRONT)
407
PK
119
PK
WINDSHIELD WIPER SWITCH (REAR)
408
WH
120
YL
CONVERTER (24 V to 12 V)
409
OR
OPERATOR MON PANEL NEUTRAL
121
YL
BACKUP ALARM/LAMP/TRAVEL ALARM TIMER
410
WH
OPERATOR MON PANEL FAULT ALARM
122
BU
AIR DRYER
411
PK
OPERATOR MON PANEL MASTER FAULT LAMP
123
WH
GAGES (SERVICEMETER, TORQUE CONV SOLENOID)
412
BU
OPERATOR MON PANEL COOLANT FLOW
124
GN
AIR CONDITIONER
413
BR
OPERATOR MON PANEL FUEL PRESSURE
522
125
OR
FUEL TRANSFER PUMP
414
PK
OPERATOR MON PANEL LOW FUEL
523
BR
WINDSHIELD WIPER-LEFT (PARK)
723
OR
TRANSMISSION GEAR CODE 3
126
PK
TRANSMISSION CONTROL
415
GN
OPERATOR MON PANEL TEST SWITCH
127
OR
CAB FLOOD LAMP
416
OR
SECONDARY STEERING SWITCH
524
BU
WINDSHIELD WIPER-LEFT (LOW)
724
YL
TRANSMISSION GEAR CODE 4
128
PK
KICKOUT SOLENOID SWITCH
417
GY
PRIMARY STEERING SWITCH
525
GY
WINDSHIELD WIPER-LEFT (HIGH)
725
GN
TRANSMISSION GEAR CODE 5
129
BU
CIGAR LIGHTER
418
YL
OPERATOR MON PANEL OIL PRESSURE (HIGH SETTING)
526
YL
WINDSHIELD WIPER-RIGHT (PARK)
726
BU
TRANSMISSION GEAR CODE 6
130
GN
STOP LAMP
419
YL
OPERATOR MON PANEL PARKING BRAKE
527
GN
WINDSHIELD WIPER-RIGHT (LOW)
727
GN
STEERING MOTOR RELAY
131
BR
FIRE CONTROL-OPERATOR WARNING
420
OR
528
PK
WINDSHIELD WIPER-RIGHT (HIGH)
728
BU
SUPPLEMENTAL STEERING CONTROL SWITCH
132
PK
ANTISPIN CONTROL
421
BU
529
WH
WINDSHIELD W ASHER-LEFT
733
BR
SWITCHING GEAR CODE 1 FRONT
133
OR
422
YL
530
OR
WINDSHIELD W ASHER-RIGHT
734
WH
SWITCHING GEAR CODE 2 FRONT
134
PK
423
GY
531
WH
FIRE WARNING HORN
735
OR
SWITCHING GEAR CODE 3 FRONT
136
GN
SUPPLEMENTAL STEERING
424
GY
532
WH
FIRE WARNING LAMP
736
YL
SWITCHING GEAR CODE 4 FRONT
137
RD
STEERING MOTOR INDICATOR
425
PK
533
RD
HEAT SENSOR/TEST SWITCH
737
GN
SWITCHING GEAR CODE 5 FRONT
138
GN
AUTOMATIC LUBE PUMP (TRUCK)
426
BR
534
WH
HEAT SENSOR/TEST SWITCH
738
BR
SWITCHING GEAR CODE 1 REAR
535
BU
TRAVEL ALARM TIMER PRESS SWITCH
739
WH
SWITCHING GEAR CODE 2 REAR
536
OR
TRAVEL ALARM TIMER MANUAL OVERRIDE
740
OR
SWITCHING GEAR CODE 3 REAR
537
GR
TURN SIGNAL SWITCH TO FLASHER
741
YL
SWITCHING GEAR CODE 4 REAR
538
BR
HAZARD INDICA TOR
742
GN
SWITCHING GEAR CODE 5 REAR
539
BU
TURN SIGNAL INDICATOR BASIC/RIGHT
743
PU
SWITCHING NEUTRAL / RUN SWITCH
540
WH
TURN SIGNAL INDICA TOR LEFT
744
BU
SWITCHING UP SOLENOID
745
GY
SWITCHING DOWN SOLENOID
141
PK
PROGRAMMED ELECTRONIC ENG CONT SOLENOID PROGRAMMED ELECTRONIC ENG CONT LOGIC
AUXILIARY HEATER
427
GN
Ground Circuits
428
OR
OPERATOR MON PANEL FUEL FILTER / LOW ACCUM PRESS. OPERATOR MON PANEL FAULT LAMP (SCRAPER) OPERATOR MON WARNING HORN (SCRAPER) OPERATOR MON PANEL TEST SWITCH (SCRAPER) OPERATOR MON PANEL POWER TRAIN TEMPERATURE OPERATOR MON PANEL POWER TRAIN OIL LEVEL OPERATOR MON PANEL POWER TRAIN OIL FILTER OPERATOR MON PANEL POWER TRAIN OIL FILTER JUMPER OPERATOR MON PANEL TRANSMISSION OIL TEMP OPERATOR MON PANEL BRAKE OIL TEMPERATURE OPERATOR MON PANEL LOW TRANSFER PUMP PRESS. OPERATOR MON PANEL BRAKE PRESSURE (OIL) OPERATOR MON PANEL BRAKE PRESS. (OIL) JUMPER OPERATOR MON PANEL POWER TRAIN TEMP JUMPER OPERATOR MON PANEL POWER TRAIN TEMP JUMPER OPERATOR MON PANEL POWER TRAIN OIL FILTER JUMPER OPERATOR MON PANEL FUEL LEVEL TO FUEL FILTER JUMPER OPERATOR MON PANEL COOLANT TEMP JUMPER
200
BK
MAIN CHASSIS
429
YL
201
BK
OPERATOR MONITOR PANEL
431
GN
202
BK
TRANSMISSION CONTROL
432
PK
203
BK
CHASSIS DIAGNOSTIC
433
BU
204
BK
OPERATOR MONITOR PANEL (SCRAPER)
434
BU
205
BK
INSTRUMENT
435
YL
206
BK
BATTERY SIDE OF DISCONNECT
436
OR
207
BK
STARTER DIAGNOSITC
437
BR
212
BK
ANTISPIN CODING PIN 16
438
YL
213
BK
ANTISPIN CODING PIN 17
440
BR
AIR PRESS. GAGE
214
BK
ANTISPIN CODING PIN 18
441
OR
ENGINE COOLANT TEMP GAGE
215
BK
ANTISPIN CODING PIN 19
442
GY
HYDRAULIC SYSTEM TEMP GAGE
216
BK
ANTISPIN CODING PIN 20
443
YL
POWER TRAIN TEMP GAGE
217
BK
TRANSMISSION CODING PIN 17
444
BU
218
BK
TRANSMISSION CODING PIN 18
445
GN
219
BK
TRANSMISSION CODING PIN 19
446
PU
BRAKE OIL TEMPERATURE GAGE
226
BK
OPERATOR MON PANEL SET POINT SELECT
449
BU
SPEEDOMETER SENDER (SIGNAL)
227
BK
TRANSMISSION CODING PIN 37
450
YL
TACHOMETER SENDER (+)
231
BK
TRANSMISSION SW
451
BR
236
BK
TRANSMISSION CODING PIN 36
452
241
BK
OPERATOR MON PANEL TIME DELAY PIN 3
242
BK
243
BK
244
BK
OPERATOR MON PANEL TIME DELAY PIN 6
Lighting Circuits 600
BR
DASH BASIC
746
PK
SWITCHING SYNCHRONIZE SOLENOID
601
GY
DASH HIGH
747
WH
SWITCHING NO SYNCHRONIZE SOLENOID
602
WH
DOME
756
WH
TRANSMISSION LOCKUP CLUTCH SOLENOID
603
PK
ROTARY BEACON
761
GY
LIFT KICKOUT SOLENOID SWITCH
604
OR
STOP
762
YL
BUCKET POSITIONER SOLENOID SWITCH
605
YL
TURN LEFT
763
BU
TORQUE CONVERTER SOLENOID
606
GY
TURN RIGHT
764
PU
SUPPLEMENTAL STEERING CONTROL SWITCH (MOTOR GRADER)
607
PK
FLOOD FRONT
765
OR
APRON SOLENOID (SCRAPER)
608
GN
FLOOD REAR
767
WH
ANTISPIN PICKUP POWER
609
YL
FLOOD SIDE
768
OR
ANTISPIN PICKUP TRANSMISSION
610
OR
HEAD LAMP BASIC
769
BU
ANTISPIN PICKUP LEFT
611
PU
HEAD LAMP HIGH
770
GN
ANTISPIN PICKUP RIGHT
TACHOMETER SENDER (-)
612
GY
BACKUP
771
PU
ANTISPIN SERVICE BRAKE SWITCH
PU
TORQUE CONVERTER
613
PK
LICENSE PLA TE
772
BR
ANTISPIN RETARDER SWITCH
453
PK
SECONDARY STEERING FAULT LAMP
OPERATOR MON PANEL TIME DELAY PIN 4
454
GN
RETARDER INDICATOR LAMP
614
PU
PARK/TAIL/DASH
773
GY
ANTISPIN SERVOVALVE
OPERATOR MON PANEL TIME DELAY PIN 5
455
YL
CONVERTER TEMP SWITCH TO TIME DELAY
615
YL
CAB FLOOD / ROPS
774
YL
ANTISPIN SOLENOID - LEFT
616
BU
BUCKET FLOOD
775
BR
ANTISPIN SOLENOID - RIGHT
617
BR
Basic Machine Circuits 301
BU
STARTER NO. 1 SOLENOID TO RESISTOR
302
OR
STARTER NO. 1 TO DIAGNOSTIC / RESISTOR TO DIAGNOSTIC
304
WH
STARTER RELAY NO. 1 OUTPUT
306
GN
STARTER RELAY COIL / NEUTRAL START SWITCH
308
YL
MAIN POWER RELAY COIL
310
PU
ETHER SWITCH TO ETHER SOLENOID
311
WH
ETHER SOLENOID TO TEMPERATURE SWITCH
312
PK
STARTER NO. 2 SOLENOID TO RESISTOR
CONV / RETARDER OIL TEMP GAGE (TRACTOR) CONV / RETARDER OIL TEMP GAGE (SCRAPER)
SENR3057 February 1984
Description
Power Train Electrical System 651E Wheel Tractor-Scraper Equipped With Electronic Powershift Transmission Control System For ICM (Individual Clutch Modulation) Type Transmission 88Z1-UP 89Z1-UP
TAIL / POSITION LAMP-LEFT (ROADING PACKAGE) TAIL / POSITION LAMP-RIGHT (ROADING PACKAGE)
618
YL
619
GR
HEAD LAMP LOW
622
PU
FLOODLAMP 3 WAY SWITCH JUMPER
623
BU
FLOOD LAMP 3 WAY SWITCH JUMPER
624
YL
FLOOD LAMP BOWL
625
BK
COURTESY LAMP
© 1984 Caterpillar All Rights Reserved
Printed in U.S.A.