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 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:

I/P Harness - Engine Compartment


Object Number: 1863932  Size: LF
(1)C116
(2)C180
(3)C182
(4)G104
(5)Fuse Block - Underhood C3
(6)Fuse Block - Underhood C4
Figure 7:

I/P Harness - Near the Passenger Floor


Object Number: 1863933  Size: LF
(1)S217
(2)Relay Block - I/P
(3)G202
(4)S234
(5)S202
(6)Splice Pack SP208
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 - Near the Steering Column


Object Number: 1863936  Size: LF
(1)C503
(2)Splice Pack SP205
(3)S237
(4)S211
(5)S207
(6)S219 (U3Z)
(7)S204
(8)S205
(9)Console Trim
(10)S221
(11)S200
(12)G201
(13)S201
(14)C501
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 - Right Rear of the Vehicle


Object Number: 1863934  Size: LF
(1)Passenger Seat
(2)Seat Belt Retractor
(3)S309 (UE1)
(4)S311 (UE1)
(5)C455
(6)S313 (UE1)
Figure 14:

I/P Harness - Left Rear of the Vehicle


Object Number: 1863935  Size: LF
(1)Floor Panel
(2)Driver Seat
(3)S339
(4)S300
(5)Rear Compartment Lid Pull Down Actuator Connector
Figure 15:

Automatic Transmission Harness Routing


Object Number: 1675096  Size: LF
(1)C184 Transmission Harness to Engine Harness
(2)Electronic Suspension Control (ESC) Module (F55)
(3)C168 Transmission Harness to Forward Lamp Harness
(4)Automatic Transmission (MYC)
(5)Fuel Pump and Sender Assembly - Primary
(6)Fuel Level Sensor - RH
(7)C400 Transmission Harness to Transmission
(8)Differential Carrier
Figure 16:

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 17:

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 18:

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 19:

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 20:

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