GM Service Manual Online
For 1990-2009 cars only
Figure 1:

Forward Lamp Harness


Object Number: 1965748  Size: LF
(1)G100
(2)J110
(3)X150 (UFA)
(4)J121
(5)J118
(6)G101
(7)J122
Figure 2:

Instrument Panel Harness - Front Engine Compartment


Object Number: 1965751  Size: LF
(1)X141 (UJ1)
(2)X150 (UFA)
(3)X100
(4)X104
Figure 3:

Engine - Left Rear (4.3L)


Object Number: 1965622  Size: LF
(1)J101
(2)J102
(3)G102
(4)G103
Figure 4:

Engine-Front (4.3L)


Object Number: 1965639  Size: LF
(1)X109
(2)J115
(3)J120
(4)J123
(5)X100
(6)X101
(7)X176
Figure 5:

Engine - Front (5.3L)


Object Number: 1965668  Size: LF
(1)X109
(2)J115
(3)J123
(4)X101
(5)X100
(6)X127
(7)X177
Figure 6:

Engine - Left Rear (5.3L)


Object Number: 1965661  Size: LF
(1)X126
(2)J102
(3)J101
(4)G102
(5)G103
Figure 7:

Engine-Front (4.8L/6.0L)


Object Number: 1965659  Size: LF
(1)X109
(2)J115
(3)J123
(4)X101
(5)X100
(6)X126
(7)X128 (Cutaway)
(8)X177
Figure 8:

Engine-Left Rear (4.8L/6.0L)


Object Number: 1965652  Size: LF
(1)X126
(2)J101
(3)J102
(4)G103
(5)G102
Figure 9:

Engine Harness - Front View (6.6L)


Object Number: 1966505  Size: LF
(1)X108
(2)X142
(3)X109
(4)X101
(5)X100
(6)G102
(7)G103
(8)X105
(9)X115
Figure 10:

Engine - Part of Assembly (POA) (6.6L)


Object Number: 1966612  Size: LF
(1)X110
(2)X111
(3)X112
(4)G108
(5)G104
(6)G107
Figure 11:

Engine Harness Splices (6.6L)


Object Number: 1966528  Size: LF
(1)J115
(2)J104
(3)J123
(4)J102
(5)J101
Figure 12:

Automatic Transmission (4L60-E/4L80-E)


Object Number: 1965743  Size: LF
(1)X175 (4L80-E)
(2)X175 (4L60-E)
Figure 13:

Instrument Panel Harness - Passenger Compartment


Object Number: 1965760  Size: LF
(1)JX250
(2)X221
(3)X276
(4)G304
(5)X331
(6)X330
(7)X200
(8)X318 (Passenger/Cargo)
(9)G301/G302
(10)X222 (YF2/YF7)
(11)X220
(12)JX200
Figure 14:

Instrument Panel Harness Splices


Object Number: 1965782  Size: LF
(1)J247
(2)J244
(3)J231
(4)J248
(5)J207
(6)J246 (DE7)
(7)J245 (DE7)
(8)J249
(9)J250
Figure 15:

Steering Column


Object Number: 1965807  Size: LF
(1)X200
(2)Steering Wheel Speed/Position Sensor (JL4)
Figure 16:

Body Harness - Left Front Passenger Compartment


Object Number: 1965813  Size: LF
(1)JX347
(2)G347
(3)X500
(4)X319 (C36/ENC)
(5)X318 (Passenger/Cargo)
(6)G301/G302
(7)X307
(8)X330
(9)X331
Figure 17:

Body Harness - Right Front Passenger Compartment


Object Number: 1965837  Size: LF
(1)X600
(2)X205
(3)X306
(4)X324 (ASF)
(5)G348
(6)JX348
Figure 18:

Body Harness - Right C-Pillar


Object Number: 1965826  Size: LF
(1)C-Pillar - Right Side
(2)X324 (ASF)
Figure 19:

Driver/Front Passenger Seats


Object Number: 1965909  Size: LF
(1)X306
(2)X307
Figure 20:

Body Harness - Left Rear (Passenger/Cargo)


Object Number: 1965819  Size: LF
(1)G402
(2)X401
(3)X411
(4)X321 (YF2/YF7)
(5)X320 (YF2/YF7)
(6)X407 (C36/C69)
(7)X409 (C36/C69)
Figure 21:

Body Harness - Right Rear (Passenger/Cargo)


Object Number: 1965831  Size: LF
(1)X419
(2)X415
(3)X420
(4)G401
(5)X402
(6)X412
(7)X400
(8)X324
Figure 22:

Body Harness Splices (Passenger/Cargo)


Object Number: 1965878  Size: LF
(1)J308 (C69 without YF7)
(2)J310 (C69 without YF7)
(3)J311 (C69 without YF7)
(4)J403
(5)J451
(6)J450
(7)J453
(8)J452
(9)J410
(10)J401 (C36/C49)
(11)J356 (C69/AU3)
(12)J318 (ASF)
(13)J331
Figure 23:

Front/Rear Headliner Harness


Object Number: 2044601  Size: LF
(1)X417 (Cargo without YF7)
(2)X205
(3)X420 (Passenger)
Figure 24:

Driver and Front Passenger Doors


Object Number: 1966198  Size: LF
(1)J501 (AU3)
(2)J502 (DE5/DE7)
(3)J500 (A31/DE5/DE7)
(4)Driver Door
(5)X500
(6)X501 (ASF)
(7)X600
(8)Passenger Door
(9)X601 (ASF)
(10)J600 (A31/DE5/DE7)
Figure 25:

Rear Cargo Doors (Passenger/Cargo)


Object Number: 1966209  Size: LF
(1)J902
(2)X400
(3)X412
(4)Cargo Door - Right Rear
(5)X902 (C49 with A12)
(6)Cargo Door - Left Rear
(7)X901 (C49 with A12)
(8)X411
Figure 26:

Chassis Harness (4.3L/4.8L/5.3L/6.0L)


Object Number: 1965974  Size: LF
(1)J402
(2)G400 (Passenger/Cargo)
(3)X405 (Cutaway)
(4)G400 (Cutaway)
(5)J301
(6)J315 (5.3L)
(7)G300
(8)J315 (4.3L/4.8L/6.0L)
(9)X101
Figure 27:

Chassis Harness (6.6L)


Object Number: 1966192  Size: LF
(1)X101
(2)X105
(3)X405 (Cutaway)
(4)G400 (Cutaway)
(5)J402
(6)X305 (K08)
(7)J119
(8)X174