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

Forward Lamp Harness Routing


Object Number: 1852023  Size: LF
(1)X103
(2)X110
(3)J145
(4)J103
(5)G105
(6)G101
(7)J128
(8)J129
(9)J146
(10)J115
(11)G102
(12)X111
(13)X102
(14)J105
(15)J147
(16)J101
(17)J109
(18)J131
(19)J100
Figure 2:

Fuse Block - Underhood Connectors


Object Number: 1631572  Size: LF
(1)Fuse Block - Underhood X3
(2)Fuse Block - Underhood X4
(3)Fuse Block - Underhood Cable End Connector
(4)Fuse Block - Underhood X1
(5)Fuse Block - Underhood X2
(6)G106
(7)Wheel Well - Right Side
(8)Battery Cable - Negative
(9)Battery
(10)Battery Cable - Positive
Figure 3:

Engine Electrical Components


Object Number: 1631729  Size: LF
(1)G103
(2)G104
(3)Battery Cable - Positive
(4)Battery Cable - Negative
(5)Engine Harness
(6)Fuse Block - Underhood
(7)G106
(8)Battery
(9)Starter Motor
(10)Generator
(11)Fuse Block - Underhood
Figure 4:

Engine Harness Routing 1 of 2


Object Number: 1889817  Size: LF
(1)Fuse Block - Underhood
(2)X162
(3)Engine Control Module (ECM)
(4)Engine Control Module (ECM) Bracket
(5)Splice J137
(6)Splice J142
(7)Electronic Brake Control Module (EBCM)
(8)Splice J104
(9)Engine Harness
Figure 5:

Engine Harness Routing 2 of 2 (LNF)


Object Number: 1865714  Size: LF
(1)Splice J123
(2)Splice J124
(3)Engine Harness
(4)Splice J121
(5)X100
(6)Fuse Block - Underhood
(7)G103
(8)Splice J140
(9)Splice J107
Figure 6:

Steering Column Components


Object Number: 1631771  Size: LF
(1)Inflatable Restraint Steering Wheel Module
(2)Turn Signal/Multifunction Switch X2
(3)Turn Signal/Multifunction Switch X1
(4)Inflatable Restraint Steering Wheel Module Coil X3
(5)Inflatable Restraint Steering Wheel Module Coil X2
(6)Ignition Switch
(7)Windshield Wiper/Washer Switch Connector
(8)Windshield Wiper/Washer Switch
Figure 7:

Instrument Panel Body Harness Routing - Left and Right Side of Instrument Panel


Object Number: 1851959  Size: LF
(1)X500
(2)X501
(3)X600
(4)Inline Fuse - Right Rear Lamps
(5)Inline Fuse - Left Rear Lamps
(6)Splice Pack JX200
(7)G300
Figure 8:

Behind Driver and Passenger Seats


Object Number: 1631567  Size: LF
(1)G300
(2)G302
(3)G304
(4)G303
(5)G301
Figure 9:

Rear Chassis Harness


Object Number: 1583567  Size: LF
(1)J405
(2)X405
(3)Tail/Stop Lamp - Left
(4)Fuel Tank
(5)Fuel Pump and Sender Assembly
(6)Evaporative Emission (EVAP) Canister Vent Solenoid Valve
(7)J402
(8)J401
(9)G400
(10)G402
(11)X406
(12)X408
(13)X409
(14)X407
(15)Tail/Stop Lamp - Right