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

Forward Lamp Wiring Components 1 of 2


Object Number: 1424992  Size: LF
(1)Turn Signal Repeater Lamp - Left (T90)
(2)Shock Absorber Actuator - Left Front (F55)
(3)G101
(4)X119
(5)Side Marker Lamp - Left Front
(6)Fog Lamp - Left Front
(7)Inflatable Restraint Front End Sensor - Left
(8)Inflatable Restraint Front End Sensor - Right
(9)Ambient Air Temperature Sensor
(10)X131
(11)Horn Assembly
(12)Fog Lamp - Right Front
(13)J102
(14)X120
(15)Side Marker Lamp - Right Front
(16)G102
(17)Shock Absorber Actuator - Right Front (F55)
(18)Hood Ajar Switch (UA2)
(19)Fuse Block - Underhood X1
(20)Turn Signal Repeater Lamp - Right (T90)
Figure 2:

Forward Lamp Wiring Components 2 of 2


Object Number: 1425036  Size: LF
(1)A/C Refrigerant Pressure Sensor
(2)Hood Ajar Switch
(3)X166
(4)X186
(5)X168 (F55)
(6)Windshield Washer Fluid Level Switch
(7)Windshield Washer Fluid Pump
(8)Headlamp Washer Fluid Pump (CE4)
(9)J101
(10)J103
Figure 3:

Engine Harness Components 1 of 3


Object Number: 2031906  Size: LF
(1)X139
(2)Heated Oxygen Sensor (HO2S) Bank 2 Sensor 1
(3)Manifold Absolute Pressure (MAP) Sensor
(4)Throttle Body
(5)Evaporative Emission (EVAP) Canister Purge Valve
(6)A/C Compressor Clutch
(7)X160
(8)Suspension Position Sensor - Right Front
(9)Fuse Block - Underhood X2
(10)Engine Control Module (ECM) X2
(11)Engine Control Module (ECM) X1
(12)X184
(13)X182
(14)X180
(15)X186
(16)Engine Oil Level and Temperature Sensor (LS3)
(17)Crankshaft Position (CKP) Sensor
(18)Heated Oxygen Sensor (HO2S) Bank 2 Sensor 2
(19)Fusible Link
(20)G106
(21)Starter Solenoid
(22)Starter Motor
(23)Knock Sensor (KS) 2
Figure 4:

Engine Harness Components 2 of 3


Object Number: 1430049  Size: LF
(1)Generator X1
(2)X140
(3)Heated Oxygen Sensor (HO2S) Bank 1 Sensor 1
(4)G107
(5)Heated Oxygen Sensor (HO2S) Bank 1 Sensor 2
(6)Knock Sensor (KS) 1
(7)G105
(8)Wheel Speed Sensor (WSS) - Left Front
(9)Suspension Position Sensor - Left Front (FE2)
(10)Camshaft Position (CMP) Sensor
(11)Variable Effort Steering Actuator
(12)J195
(13)Electronic Brake Control Module (EBCM)
(14)Brake Fluid Pressure Sensor
(15)Generator X2
Figure 5:

Engine Components 3 of 3


Object Number: 1430051  Size: LF
(1)Fuel Injector 7
(2)Ignition Coil 7
(3)Fuel Injector 5
(4)Ignition Coil 5
(5)Fuel Injector 3
(6)Ignition Coil 3
(7)Fuel Injector 1
(8)Ignition Coil 1
(9)Engine Coolant Temperature (ECT) Sensor
(10)Fuel Injector 2
(11)Ignition Coil 2
(12)Ignition Coil 4
(13)Fuel Injector 4
(14)Ignition Coil 6
(15)Fuel Injector 6
(16)Ignition Coil 8
(17)Fuel Injector 8
(18)Engine Oil Pressure (EOP) Sensor
Figure 6:

Instrument Panel Harness - Engine Compartment


Object Number: 1863932  Size: LF
(1)X116
(2)X180
(3)X182
(4)G104
(5)Fuse Block - Underhood X3
(6)Fuse Block - Underhood X4
Figure 7:

Instrument Panel Harness - Near the Passenger Floor


Object Number: 1863933  Size: LF
(1)J217
(2)Relay Block - Instrument Panel
(3)G202
(4)J234
(5)J202
(6)JX208
Figure 8:

Instrument Panel Harness Routing - Left Side of Instrument Panel and Console


Object Number: 1442138  Size: LF
(1)Driver Door
(2)X501
(3)X503 (U65)
(4)X231
(5)X275
(6)Floor Console
(7)X377
(8)X379 (AAB)
(9)X375
Figure 9:

Rear Body and Overhead Console (CO5/CM7)


Object Number: 1442143  Size: LF
(1)X382
(2)G302
(3)X380
(4)Door Latch - Driver
(5)Folding Top Stowage Compartment Lid Latch Pull Down Actuator (CM7)
(6)Rear Compartment Courtesy Lamp - Right
(7)X455
(8)X433 (CM7)
(9)Rear Compartment Lid Latch
(10)Keyless Entry Antenna - Rear Compartment
(11)Rear Compartment Courtesy Lamp - Left
(12)Fuel Door Release Switch
(13)Door Latch - Passenger
(14)G301
(15)X377
(16)X379 (AAB)
(17)X375
Figure 10:

Rear Body and Overhead Console (Except CO5/CM7)


Object Number: 1442139  Size: LF
(1)X382
(2)X380
(3)G302
(4)Door Latch - Passenger
(5)Keyless Entry Antenna - Rear Compartment
(6)Rear Window Defogger Grid X2
(7)Rear Compartment Courtesy Lamp - Right
(8)X455
(9)Rear Compartment Lid Latch
(10)Rear Compartment Courtesy Lamp - Left
(11)Fuel Door Release Switch
(12)Rear Window Defogger Grid X1
(13)G301
(14)X377
(15)X379 (AAB)
(16)X375
Figure 11:

Instrument Panel Harness - Near the Steering Column


Object Number: 1863936  Size: LF
(1)X503
(2)JX205
(3)J237
(4)J211
(5)J207
(6)J219 (U3Z)
(7)J204
(8)J205
(9)Console Trim
(10)J221
(11)J200
(12)G201
(13)J201
(14)X501
Figure 12:

Instrument Panel Splice Locations - Console, Lower Right and Overhead


Object Number: 1454874  Size: LF
(1)J351
(2)J640
(3)J213 (CM7)
(4)J312
(5)J234
(6)Body Control Module (BCM) X3
(7)J208
(8)J222
(9)Fuse Block - Instrument Panel
(10)J246
(11)J255
(12)J205
(13)J204
(14)J219 (CO5/CM7 and UZD)
Figure 13:

Instrument Panel Harness - Right Rear of Vehicle


Object Number: 1863934  Size: LF
(1)Passenger Seat
(2)Seat Belt Retractor - Passenger
(3)J309 (UE1)
(4)J311 (UE1)
(5)X455
(6)J313 (UE1)
Figure 14:

Instrument Panel Harness - Left Rear of the Vehicle


Object Number: 1863935  Size: LF
(1)Floor Panel
(2)Driver Seat
(3)J339
(4)J300
(5)Rear Compartment Lid Pull Down Actuator Connector
Figure 15:

Automatic Transmission Harness Routing


Object Number: 1675096  Size: LF
(1)X184
(2)Electronic Suspension Control (ESC) Module (F55)
(3)X168
(4)Automatic Transmission (MYC)
(5)Fuel Pump and Sender Assembly - Primary
(6)Fuel Level Sensor - Secondary
(7)X400
(8)Differential Carrier
Figure 16:

Manual Transmission and Fuel Tank Components


Object Number: 1450543  Size: LF
(1)Wheel Speed Sensor (WSS) - Right Rear
(2)Vehicle Speed Sensor (VSS) (MM6/MZ6/MN6)
(3)Backup Lamp Switch 1 (MM6/MZ6/MN6)
(4)Backup Lamp Switch 2 (MM6/MZ6/MN6)
(5)X420 (LS3/LS7) or X421 (LS9)
(6)Fuel Tank Pressure (FTP) Sensor
(7)Fuel Level Sensor - Secondary
(8)X460
(9)Suspension Position Sensor - Right Rear (FE2)
(10)G401
(11)X439
(12)Wheel Speed Sensor (WSS) - Left Rear
(13)Suspension Position Sensor - Left Rear (FE2)
(14)Transmission Fluid Temperature (TFT) Sensor (MM6/MZ6/MN6 with KNP)
(15)X459 (LS3/LS7) or X469 (LS9)
(16)Skip Shift Solenoid (MM6/MZ6/MN6 with JL5)
(17)Reverse Lockout Solenoid (MM6/MZ6/MN6)
(18)X460
(19)Fuel Pump
(20)Fuel Pump and Sender Assembly - Secondary
(21)X168
(22)X184
(23)Electronic Suspension Control (ESC) Module
Figure 17:

G401 and G402


Object Number: 1491963  Size: LF
(1)Fuel Tank-Right
(2)G402
(3)G401
Figure 18:

Driver Door Components


Object Number: 1448643  Size: LF
(1)Door Handle Switch - Driver Exterior
(2)Door Lock Indicator - Driver
(3)J579
(4)J559
(5)Memory/Heated Seat Switch - Driver
(6)Door Lock Switch - Driver
(7)Speaker - Left Tweeter
(8)Outside Rearview Mirror - Driver X1
(9)J539
(10)Outside Rearview Mirror - Driver X2
(11)X503
(12)X501
(13)Speaker - Left Subwoofer
(14) Door Control Module - Driver
(15)Window Switch - Driver
(16)Door Handle Switch - Driver Interior
(17)X555
(18)Inflatable Restraint Side Impact Sensor - Left (AJ7)
Figure 19:

Passenger Door Components


Object Number: 1448644  Size: LF
(1)Outside Rearview Mirror - Passenger X2
(2)Outside Rearview Mirror - Passenger X1
(3)Speaker - Right Tweeter
(4)Door Lock Switch - Passenger
(5)J680
(6)Door Handle Switch - Passenger Interior
(7)J660
(8)Door Lock Indicator - Passenger
(9)Door Handle Switch - Passenger Exterior
(10)Inflatable Restraint Side Impact Sensor (SIS) - Right (AJ7)
(11)X666
(12)Window Switch - Passenger
(13)Door Control Module - Passenger
(14)Speaker - Right Subwoofer
(15)X600
(16)X602 (U3Z)
(17)J640
Figure 20:

Rear Fascia Lighting (North America)


Object Number: 1442992  Size: LF
(1)License Lamp - Right
(2)Rear Compartment Lid Release Switch - Exterior
(3)Center High Mounted Stop Lamp (CHMSL)
(4)License Lamp - Left
(5)Tail/Stop and Turn Signal Lamp - Left
(6)Tail/Stop and Turn Signal Lamp - Left
(7)Side Marker Lamp - Left Rear
(8)Backup Lamp - Left
(9)J457
(10)J931
(11)J900
(12)Backup Lamp - Right
(13)J455
(14)J458
(15)Side Marker Lamp - Right Rear
(16)Tail/Stop and Turn Signal Lamp - Right
(17)Tail/Stop and Turn Signal Lamp - Right
(18)Tail/Stop and Turn Signal Lamp - Right
(19)Tail/Stop and Turn Signal Lamp - Right
(20)Backup Lamp - Right
(21)License Lamp - Right
(22)Rear Compartment Lid Release Switch - Exterior
(23)License Lamp - Left
(24)Center High Mounted Stop Lamp (CHMSL)
(25)Backup Lamp - Left
(26)Tail/Stop and Turn Signal Lamp - Left
(27)Tail/Stop and Turn Signal Lamp - Left
Figure 21:

Rear Fascia Lighting (Except North America)


Object Number: 1442966  Size: LF
(1)Fog Lamp - Right Rear (T79)
(2)License Lamp - Right
(3)Rear Compartment Lid Release Switch - Exterior
(4)Center High Mounted Stop Lamp (CHMSL)
(5)License Lamp - Left
(6)Fog Lamp - Left Rear (T79)
(7)Tail/Stop Lamp - Left
(8)Turn Signal Lamp - Left Rear
(9)Side Marker Lamp - Left Rear
(10)Backup Lamp - Left
(11)J459
(12)J931
(13)J900
(14)Backup Lamp - Right
(15)J455
(16)J 960
(17)Side Marker Lamp - Right Rear
(18)Turn Signal Lamp - Right Rear
(19)Tail/Stop Lamp - Right
(20)Tail/Stop Lamp - Right
(21)Turn Signal Lamp - Right Rear
(22)Fog Lamp - Right Rear
(23)Backup Lamp - Right
(24)License Lamp - Right
(25)Rear Compartment Lid Release Switch - Exterior
(26)License Lamp - Left
(27)Center High Mounted Stop Lamp (CHMSL)
(28)Backup Lamp - Left
(29)Fog Lamp - Left Rear
(30)Turn Signal Lamp - Left Rear
(31)Tail/Stop Lamp - Left