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

Forward Lamp Harness


Object Number: 1817619  Size: LF
(1)C109
(2)C110
(3)C108
(4)G101
(5)C101
Figure 2:

Body Harness - Engine Compartment


Object Number: 1817585  Size: LF
(1)C102
(2)C101
Figure 3:

Battery Cable Harness


Object Number: 1776509  Size: LF
(1)C102
(2)Battery Current Sensor
(3)G103
Figure 4:

Engine Harness - Front


Object Number: 1817625  Size: LF
(1)S110
(2)S109
(3)S108
(4)S107
(5)S105
(6)S100
(7)G107
(8)C106
Figure 5:

Engine Harness - Top of Engine


Object Number: 1817635  Size: LF
(1)S115
(2)S114
(3)S106
Figure 6:

Fuel Injector and Transmission Harness


Object Number: 1817650  Size: LF
(1)C105
(2)S104
(3)S101
Figure 7:

I/P Harness


Object Number: 1817612  Size: LF
(1)S210
(2)S213
(3)C275
(4)C276
(5)S201
(6)S212
(7)C216
(8)S223
(9)C214
(10)S211 (UUC)
(11)G203
(12)C203 (C69 w/o UUC)
(13)C307 (C69)
(14)C218
(15)G201
(16)C219
(17)C206
(18)C226
(19)C207 (UUC w/o C69)
(20)C204
(21)SP200
Figure 8:

Console Harness


Object Number: 1817594  Size: LF
(1)S301
(2)S300
(3)C202
(4)C305
Figure 9:

Body Harness - Passenger Compartment


Object Number: 1817587  Size: LF
(1)C219
(2)C600
(3)C206
(4)C218
(5)S202
(6)S306
(7)S307
(8)C309
(9)G311
(10)C800
(11)C700
(12)C308
(13)G301
(14)C305
(15)S304
(16)S302
(17)S204
(18)C204
(19)S206
(20)C210
(21)S200
(22)C500
(23)G205
Figure 10:

Headliner and Sunroof Harness


Object Number: 1817592  Size: LF
(1)C415
(2)C412 (UUC)
(3)C417 (U3U)
Figure 11:

Body Harness - Rear Compartment


Object Number: 1817590  Size: LF
(1)G403
(2)S409
(3)C415
(4)C417 (U3U)
(5)C409 (V92)
(6)C404
(7)C901
(8)C900
(9)C403
(10)G401
(11)C419 (C69)
Figure 12:

Body Harness - Rear Compartment


Object Number: 1817590  Size: LF
(1)G403
(2)S409
(3)C415
(4)C417 (U3U)
(5)C409 (V92)
(6)C404
(7)C901
(8)C900
(9)C403
(10)G401
(11)C419 (C69)
Figure 13:

Liftgate Harness


Object Number: 1817581  Size: LF
(1)C900
(2)C901
(3)S902
(4)C906
(5)S908
(6)Rear WIndow Wiper Motor Connector