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

Forward Lamp Harness


Object Number: 1776139  Size: LF
(1)Right Front Strut Tower
(2)Fuse Block - Underhood X3
(3)G101
(4)X109
(5)X110
(6)G102
Figure 2:

Engine Harness - Front (LY7)


Object Number: 1775974  Size: LF
(1)X130
(2)J199
(3)Engine Control Module (ECM) X2
(4)Engine Control Module (ECM) X3
(5)X108
(6)Left Front Frame Rail
(7)G113
Figure 3:

Engine Harness - Front (LZ4)


Object Number: 1775952  Size: LF
(1)X130
(2)Upper Intake Manifold
(3)X103
(4)Fuse Block - Underhood X1
(5)Fuse Block - Underhood
(6)X108
(7)X100
(8)Cooling Fan - Right Connector
(9)Camshaft Position (CMP) Actuator Solenoid Connector
Figure 4:

Engine Harness - Rear (LY7)


Object Number: 1775982  Size: LF
(1)X108
(2)G105
(3)J198
(4)Upper Intake Manifold
(5)G111
(6)Fuse Block - Underhood X1
Figure 5:

Engine Harness - Rear (LZ4)


Object Number: 1775943  Size: LF
(1)X108
(2)Engine Control Module (ECM) X2
(3)Engine Control Module (ECM) X1
(4)X103
(5)Upper Intake Manifold
(6)Ignition Control Module (ICM)
(7)Transmission
(8)G106
(9)G105
(10)Fuse Block - Underhood
Figure 6:

Fuel Injector Harness (LY7)


Object Number: 1775985  Size: LF
(1)Valve Cover
(2)J107
(3)Lower Intake Manifold
(4)J114
(5)X130
Figure 7:

Fuel Injector Harness (LZ4)


Object Number: 1775965  Size: LF
(1)Ignition Control Module (ICM)
(2)J130
(3)X130
Figure 8:

Power Steering Harness - NV7


Object Number: 1776001  Size: LF
(1)Brake Booster Bracket
(2)Power Steering Control Module
(3)G103
(4)Fuse Block - Underhood Terminal
Figure 9:

Instrument Panel Harness - Front of Carrier


Object Number: 1776045  Size: LF
(1)Instrument Panel Trim
(2)Instrument Panel Carrier
(3)Instrument Panel Compartment
(4)Body Bontrol Module (BCM) X2
(5)Data Link Connector (DLC)
(6)X206
(7)X208
Figure 10:

Instrument Panel Harness - Rear Of Carrier


Object Number: 1776049  Size: LF
(1)X291 (Coaxial) (UE1)
(2)Instrument Panel Upper Trim
(3)Instrument Panel Compartment
(4)Body Control Module (BCM) X4
(5)G201
(6)G203
(7)X207
Figure 11:

Console Harness


Object Number: 1776033  Size: LF
(1)X304
(2)Arm Rest
(3)Cup Holders
Figure 12:

Body Harness - Front


Object Number: 1776142  Size: LF
(1)X102
(2)Brake Fluid Level Switch
(3)X101
(4)G101
(5)X108 (LY7)
(6)G104
(7)G109
(8)X108 (LZ4)
(9)Fuse Block - Underhood X4
(10)Fuse Block - Underhood X2
Figure 13:

Body Harness - Passenger Compartment


Object Number: 1776154  Size: LF
(1)G305
(2)G304
(3)X600
(4)X207
(5)X216
(6)X304
(7)X310
(8)X800
(9)X309
(10)X700
(11)X300
(12)X308
(13)G303
(14)X500
(15)X206
(16)X208
(17)X203
Figure 14:

Driver Seat Harness (AE8/AF2)


Object Number: 1776130  Size: LF
(1)Seat Frame
(2)X300
(3)X308
Figure 15:

Passenger Seat Harness


Object Number: 1781337  Size: LF
(1)X310
(2)Seat Frame
(3)X307
(4)X309
Figure 16:

Driver Door Harness


Object Number: 1776200  Size: LF
(1)Door Frame
(2)X501
(3)X500
Figure 17:

Passenger Door Harness


Object Number: 1776205  Size: LF
(1)X600
(2)X601
(3)Door Frame
Figure 18:

Headliner Harness (CF5)


Object Number: 1776218  Size: LF
(1)Headliner
(2)Fuse Block - Rear X3
(3)X351 (UE1)
Figure 19:

Headliner Harness (without CF5)


Object Number: 1776269  Size: LF
(1)Headliner
(2)Fuse Block - Rear X3
(3)X351 (UE1)
Figure 20:

Headliner Harness (C3Y)


Object Number: 1776226  Size: LF
(1)Headliner
(2)X415
(3)Fuse Block - Rear X3
(4)X351 (UE1)
Figure 21:

Body Harness - Rear Compartment


Object Number: 1776194  Size: LF
(1)G301
(2)Inflatable Restraint Roof Rail Module - Right
(3)Rear Shelf
(4)X495
(5)Fuse Block - Rear
(6)Inflatable Restraint Roof Rail Module - Left
(7)G302
(8)X351 (UE1)
(9)X404
Figure 22:

Left Rear Door Harness


Object Number: 1776212  Size: LF
(1)Door Frame
(2)X700
(3)X701
Figure 23:

Right Rear Door Harness


Object Number: 1776214  Size: LF
(1)X800
(2)Door Frame
(3)X801
Figure 24:

Rear ABS and Fuel Tank Harnesses


Object Number: 1776059  Size: LF
(1)Fuel Tank
(2)X413
(3)X403
Figure 25:

Rear Lamp Harness


Object Number: 1775993  Size: LF
(1)G401
(2)X401
(3)Rear Window
(4)X402
(5)G403
Figure 26:

Battery Cable Harness (LY7)


Object Number: 1776272  Size: LF
(1)G105
(2)Fuse Block - Underhood Terminal
(3)G104
(4)Starter Terminal
Figure 27:

Battery Cable Harness (LZ4)


Object Number: 1776280  Size: LF
(1)G105
(2)Fuse Block - Underhood Terminal
(3)Starter Terminal
Figure 28:

Engine Harness - Front (LY7)


Object Number: 1775974  Size: LF
(1)X130
(2)J199
(3)Engine Control Module (ECM) X2
(4)Engine Control Module (ECM) X3
(5)X108
(6)Left Front Frame Rail
(7)G113
Figure 29:

G101, G104, and G109


Object Number: 1832306  Size: LF
(1)Left Front Strut Tower
(2)G101
(3)G104
(4)G109
Figure 30:

Front of the Battery Tray


Object Number: 1832315  Size: LF
(1)Battery
(2)Engine Control Module (ECM)
(3)Transmission Control Module (TCM)
Figure 31:

Left Rear of Engine Compartment


Object Number: 1869636  Size: MF
(1)Coolant Level Switch
(2)Battery
(3)Electronic Brake Control Module (EBCM)
(4)X101
(5)G103 (NV7)
(6)Fuse Block - Underhood
Figure 32:

Engine Harness - Rear (LZ4)


Object Number: 1775943  Size: LF
(1)X108
(2)Engine Control Module (ECM) X2
(3)Engine Control Module (ECM) X1
(4)X103
(5)Upper Intake Manifold
(6)Ignition Control Module (ICM)
(7)Transmission
(8)G106
(9)G105
(10)Fuse Block - Underhood
Figure 33:

Engine Harness - Rear (LY7)


Object Number: 1775982  Size: LF
(1)X108
(2)G105
(3)J198
(4)Upper Intake Manifold
(5)G111
(6)Fuse Block - Underhood X1
Figure 34:

Behind the Instrument Panel Trim


Object Number: 1832301  Size: LF
(1)Instrument Panel Trim
(2)Theft Deterrent Control Module
(3)Steering Column
(4)Ignition Switch
(5)Body Control Module (BCM)
Figure 35:

Instrument Panel Harness - Rear of Carrier


Object Number: 1776049  Size: LF
(1)X291 (Coaxial) (UE1)
(2)Instrument Panel Upper Trim
(3)Instrument Panel Compartment
(4)Body Control Module (BCM) X4
(5)G201
(6)G203
(7)X207
Figure 36:

G301 and G302


Object Number: 1832308  Size: LF
(1)G301
(2)Rear Shelf
(3)G302
(4)Floor Panel
Figure 37:

G303


Object Number: 1832305  Size: LF
(1)Instrument Panel Bracket
(2)Dash Panel
(3)G303
Figure 38:

G304 and G305


Object Number: 1832307  Size: LF
(1)G305
(2)G304
(3)Floor Panel
(4)Floor Shifter
Figure 39:

Rear Lamp Harness


Object Number: 1775993  Size: LF
(1)G401
(2)X401
(3)Rear Window
(4)X402
(5)G403
Figure 40:

Rear of the Luggage Compartment


Object Number: 1832291  Size: LF
(1)Rear Window Defogger Grid
(2)Fuse Block - Rear
(3)Rear Floor
(4)Audio Amplifier (UQ3)
Figure 41:

Fuel Tank Components


Object Number: 1938543  Size: LF
(1)Evaporative Emission (EVAP) Canister Vent Solenoid
(2)Canister Vent Assembly
(3)Fuel Pump and Sender Assembly
Figure 42:

G110 and G107 (LE5)


Object Number: 1925417  Size: LF
(1)G110
(2)G107
Figure 43:

Engine Harness Routing (LE5)


Object Number: 1925414  Size: LF
(1)X108
(2)X100
(3)G106
(4)X130