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

Forward Lamp Wiring Components 1 of 2


Object Number: 1424992  Size: LF
(1)Repeater Lamp - Left (T90)
(2)Suspension Damper - LF (F55)
(3)G101
(4)C119
(5)Marker Lamp - LF
(6)Fog Lamp - LF
(7)Inflatable Restraint Front End Sensor - Left
(8)Inflatable Restraint Front End Sensor - Right
(9)Ambient Air Temperature Sensor
(10)C131 to Underhood Lamp (if equipped)
(11)Horn Assembly
(12)Fog Lamp - RF
(13)S102
(14)C120
(15)Marker Lamp - RF
(16)C102
(17)G102
(18)Suspension Damper - RF (F55)
(19)Hood Ajar Switch
(20)Fuse Block - Underhood C1
(21)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)C166
(4)C186
(5)C168 (F55)
(6)Windshield Washer Fluid Level Switch
(7)Windshield Washer Fluid Pump
(8)Headlamp Washer Fluid Pump (CE4)
(9)S101
(10)S103
Figure 3:

Engine Harness Components 1 of 3


Object Number: 1430046  Size: LF
(1)C139
(2)Heated Oxygen Sensor (HO2S) Bank 2 Sensor 1
(3)Manifold Absolute Pressure (MAP) Sensor
(4)Throttle Body Assembly
(5)Evaporative Emission (EVAP) Canister Purge Valve
(6)A/C Compressor Clutch
(7)C160
(8)Suspension Position Sensor - RF
(9)Fuse Block - Underhood C2
(10)Engine Control Module (ECM) C3
(11)Engine Control Module (ECM) C2
(12)Engine Control Module (ECM) C1
(13)C184
(14)C182
(15)C180
(16)C186
(17)Engine Oil Level Switch
(18)Crankshaft Position (CKP) Sensor
(19)Heated Oxygen Sensor (HO2S) Bank 2 Sensor 2
(20)Fusible Link
(21)G106
(22)Starter Solenoid
(23)Starter Crank Voltage
(24)Knock Sensor (KS) Bank 2
Figure 4:

Engine Harness Components 2 of 3


Object Number: 1430049  Size: LF
(1)Generator
(2)C140
(3)Heated Oxygen Sensor (HO2S) Bank 1 Sensor 1
(4)G107
(5)Heated Oxygen Sensor (HO2S) Bank 1 Sensor 2
(6)Knock Sensor (KS) Bank 1
(7)G105
(8)Wheel Speed Sensor (WSS) - LF
(9)Suspension Position Sensor - LF
(10)Camshaft Position (CMP) Sensor
(11)Variable Effort Steering Actuator
(12)S195
(13)Electronic Brake Control Module (EBCM)
(14)Brake Fluid Pressure Sensor
(15)Generator
Figure 5:

Engine Harness Components 3 of 3


Object Number: 1430051  Size: LF
(1)Fuel Injector 1
(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:

I/P Harness Routing - Engine Compartment and Lower Right Side of I/P


Object Number: 1442131  Size: LF
(1)Fuse Block Underhood C3
(2)Fuse Block Underhood C4
(3)C186
(4)C180
(5)C182
(6)Engine Compartment Pass-Through
(7)Body Control Module (BCM) C2
(8)Courtesy Lamp - Right
(9)HVAC Blower Control
(10)Body Control Module (BCM) C1
(11)Fuse Block - I/P
(12)Relay Block - I/P
(13)Body Control Module (BCM) C4
(14)Splice Pack SP208
(15)Audio Amplifier C2
(16)Audio Amplifier C1
(17)G104
Figure 7:

I/P Harness Routing - Upper Right Side of I/P


Object Number: 1442136  Size: LF
(1)Air Temperature Sensor - Upper Right
(2)Speaker - Center
(3)Ambient Light Sensor - RH
(4)Remote Control Door Lock Receiver (RCDLR) C1
(5)Remote Control Door Lock Receiver (RCDLR) C2
(6)Hazard Switch
(7)G302
(8)Ambient Light Sensor - LH
(9)Intrusion Sensor Defeat Switch (UA2)
(10)Keyless Entry Antenna Right
(11)Inflatable Restraint IP Module
(12)G202
(13)Courtesy Lamp - Right
(14)Blower Motor Control Processor
(15)C602
(16)C600
(17)Inflatable Restraint I/P Module Disable Switch
(18)I/P Compartment Lamp
Figure 8:

I/P Harness Routing - Left Side of I/P and Console


Object Number: 1442138  Size: LF
(1)Driver Door
(2)C501
(3)C503 (U65)
(4)C231
(5)C275
(6)Floor Console
(7)C377
(8)C379 (AAB)
(9)C375
Figure 9:

I/P Harness Routing - Overhead and Rear Body - Convertible


Object Number: 1442143  Size: LF
(1)C382
(2)G302
(3)C380
(4)Door Latch - Driver
(5)Folding Top Cover Pull Down Actuator (CM7)
(6)Rear Compartment Courtesy Lamp - Right
(7)C455
(8)C433 (CM7)
(9)Rear Compartment Lid Latch Assembly
(10)Keyless Entry Antenna - Rear Compartment
(11)Rear Compartment Courtesy Lamp - Left
(12)Fuel Door Release Switch
(13)Door Latch - Front Passenger
(14)G301
(15)C377
(16)C379 (AAB)
(17)C375
Figure 10:

I/P Harness Routing - Overhead and Rear Body - Hardtop/Coupe


Object Number: 1442139  Size: LF
(1)C382
(2)C380
(3)G302
(4)Door Latch - Passenger
(5)Keyless Entry Antenna - Rear Compartment
(6)Rear Window Defogger Grid C2
(7)Rear Compartment Courtesy Lamp - Right
(8)C455
(9)Rear Compartment Lid Latch Assembly
(10)Rear Compartment Courtesy Lamp - Left
(11)Fuel Door Release Switch
(12)Rear Window Defogger Grid C1
(13)G301
(14)C377
(15)C379 (AAB)
(16)C375
Figure 11:

I/P Harness Splice Locations - Instrument Panel Console


Object Number: 1454444  Size: LF
(1)S237
(2)S207
(3)S211
(4)S201 (CM7/UV6)
(5)S251 (MAE w/M32)
(6)S391
(7)S200
(8)S214 (UA2)
(9)S215 (UA2)
(10)S303
(11)S232
(12)S217
(13)S216
(14)S203
(15)S230
(16)S231
(17)S218 (MM6/MZ6)
(18)S242
(19)S232
(20)S210
(21)S209
(22)S206
(23)S205
Figure 12:

I/P Splice Locations - Console, Lower Right and Overhead


Object Number: 1454874  Size: LF
(1)S351
(2)S640
(3)S213 (CM7)
(4)S312
(5)S234
(6)Body Control Module (BCM) C3
(7)S208
(8)S222
(9)Fuse Block - I/P
(10)S246
(11)S255
(12)S205
(13)S204
(14)S219 (Y67&UZD)
Figure 13:

I/P Harness Splice Locations - Rear Body (Convertible and Hardtop/Coupe Harness)


Object Number: 1454972  Size: LF
(1)S309 (UE1)
(2)S311 (UE1)
(3)S313 (UE1)
(4)S220 (UZD)
(5)S219 (Y07&UZD)
(6)S355 (CM7)
(7)S301 (Y67)
(8)S303
(9)S301 (Y07)
(10)S422
Figure 14:

Automatic Transmission and Fuel Tank Components


Object Number: 1451247  Size: LF
(1)C168
(2)Electronic Suspension Control (ESC) Module
(3)C420
(4)Fuel Level Sensor - RH
(5)C460
(6)Fuel Pump
(7)Wheel Speed Sensor (WSS) - RR
(8)Suspension Position Sensor - RR (FE2)
(9)G402
(10)C440
(11)Vehicle Speed Sensor (VSS)
(12)Park/Neutral Position (PNP) Switch
(13)Suspension Position Sensor - LR (FE2)
(14)G401
(15)C439
(16)Wheel Speed Sensor (WSS) - LR
(17)Fuel Pump and Sender Assembly - Primary
(18)C459 (Export)
(19)Fuel Tank - LH
(20)C400
(21)Transmission Control Module (TCM) (M32)
(22)C184
Figure 15:

Manual Transmission and Fuel Tank Components


Object Number: 1450543  Size: LF
(1)Wheel Speed Sensor (WSS) - RR
(2)Vehicle Speed Sensor (VSS)
(3)Reverse Switch 1
(4)Reverse Switch 2
(5)C420
(6)Fuel Tank Pressure (FTP) Sensor
(7)Fuel Level Sensor - RH
(8)C460
(9)Suspension Position Sensor - RR (FE2)
(10)G401
(11)C439
(12)Wheel Speed Sensor (WSS) - LR
(13)Suspension Position Sensor - LR (FE2)
(14)Transmission Fluid Temperature (TFT) Sensor (KNP)
(15)C459
(16)Skip Shift Solenoid (JL5)
(17)Reverse Lockout Solenoid
(18)C460
(19)Fuel Pump
(20)Fuel Tank - RH
(21)C168
(22)C184
(23)Electronic Suspension Control (ESC) Module
Figure 16:

Driver Door Components


Object Number: 1448643  Size: LF
(1)Door Handle Switch - Driver Exterior
(2)Door Lock Indicator - Driver
(3)S579
(4)S559
(5)Memory Seat Switch
(6)Door Lock Switch - Driver
(7)Speaker - LF Door Tweeter
(8)Outside Rearview Mirror - Driver C1
(9)S539
(10)Outside Rearview Mirror - Driver C2
(11)C503
(12)C501
(13)Speaker - Bose
(14)Driver Door Module (DDM)
(15)Driver Door Switch Assembly (DDSA)
(16)Door Handle Switch - Driver Interior
(17)C555
(18)Inflatable Restraint Side Impact Sensor - Left (AJ7)
Figure 17:

Passenger Door Components


Object Number: 1448644  Size: LF
(1)Outside Rearview Mirror - Passenger C2
(2)Outside Rearview Mirror - Passenger C1
(3)Speaker - RF Door Tweeter
(4)Door Lock Switch - Passenger
(5)S680
(6)Door Handle Switch - Passenger Interior
(7)S660
(8)Door Lock Indicator - Passenger
(9)Door Handle Switch - Passenger Exterior
(10)Inflatable Restraint Side Impact Sensor - Right (AJ7)
(11)C666
(12)Window Switch - Front Passenger
(13)Front Passenger Door Module (FPDM)
(14)Speaker - Bose
(15)C600
(16)C602 (U32)
(17)S640
Figure 18:

Rear Fascia Lighting (Domestic)


Object Number: 1442992  Size: LF
(1)License Lamp
(2)Rear Compartment Lid Release Switch - Exterior
(3)Center High Mounted Stop Lamp (CHMSL)
(4)License Lamp
(5)Tail/Stop and Turn Signal Lamp - Left
(6)Tail/Stop and Turn Signal Lamp - Left
(7)Side Marker Lamp - LR
(8)Backup Lamp - Left
(9)S457
(10)S931
(11)S900
(12)S455
(13)Backup Lamp - Right
(14)S458
(15)Side Marker Lamp - RR
(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
(22)Rear Compartment Lid Release Switch - Exterior
(23)License Lamp
(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 19:

Rear Fascia Lighting (Export)


Object Number: 1442966  Size: LF
(1)Fog Lamp - RR
(2)License Lamp
(3)Rear Compartment Lid Release Switch - Exterior
(4)Center High Mounted Stop Lamp (CHMSL)
(5)License Lamp
(6)Fog Lamp - LR
(7)Tail/Stop Lamp - Left
(8)Turn Signal Lamp - Left
(9)Side Marker Lamp - LR
(10)Backup Lamp - Left
(11)S459
(12)S931
(13)S900
(14)Backup Lamp - Right
(15)S455
(16)S 960
(17)Side Marker Lamp - RR
(18)Turn Signal Lamp - Right
(19)Tail/Stop Lamp - Right
(20)Tail/Stop Lamp - Right
(21)Turn Signal Lamp - Right
(22)Fog Lamp - RR
(23)Backup Lamp - Right
(24)License Lamp
(25)Rear Compartment Lid Release Switch - Exterior
(26)License Lamp
(27)Center High Mounted Stop Lamp (CHMSL)
(28)Backup Lamp - Left
(29)Fog Lamp - LR
(30)Turn Signal Lamp - Left
(31)Tail/Stop Lamp - Left