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

Left Rear Of Engine Compartment


Object Number: 327352  Size: LF
(1)Cruise Control Module
(2)Brake Fluid Level Indicator Sensor
Figure 2:

Right Rear of Engine (VIN M)


Object Number: 374681  Size: LF
(1)C102
(2)C108
Figure 3:

C101, C103, and C181


Object Number: 290726  Size: MF
(1)C103 IP Wiring Harness Female Connector
(2)C101 Engine Wiring Harness Male Connector
(3)Retainer Nut for C103
(4)Connector Position Assurance (CPA) for C103
(5)C103 Engine Wiring Harness Male Connector
(6)C181 Engine Wiring Harness Male Connector
(7)Stud
(8)Connector Position Assurance (CPA) for C181
(9)C181 I/P Wiring Harness Female Connector
(10)C101 I/P Wiring Harness Female Connector
Figure 4:

Front of Engine Compartment (VIN M)


Object Number: 374604  Size: LF
(1)C105
(2)RH Engine Coolant Fan Motor
(2)RH Engine Coolant Fan Motor Connector
(3)LH Engine Coolant Fan Motor
Figure 5:

Front of Engine Compartment (VIN 1, K)


Object Number: 374607  Size: LF
(1)RH Engine Coolant Fan Motor and Connector
(2)C105
(3)LH Engine Coolant Fan Motor
Figure 6:

Right Front Side of Engine (w/RPO L36,L67)


Object Number: 305312  Size: LF
(1)C110
(2)Ignition Control Module (ICM) Wiring Harness
(3)Ignition Control Module (ICM)
(4)Crankshaft Position (CKP) Sensor
Figure 7:

Left Side Of Engine (VIN M)


Object Number: 327648  Size: LF
(1)C111
Figure 8:

Transaxle Range Switch -- LH Side of Engine (VIN 1, K)


Object Number: 305322  Size: LF
(1)Automatic Transaxle Connector C113
(2)Transaxle Range Switch
(3)Transaxle Range Switch C1
(4)Transaxle Range Switch C2
Figure 9:

Right Front Of Engine Compartment


Object Number: 327644  Size: SF
(1)C120
Figure 10:

Lower Rear Side of Engine (w/RPO L36,L67)


Object Number: 305317  Size: LF
(1)Knock Sensor (KS) Bank 2
(2)Knock Sensor (KS) Bank 2 -- Wiring Harness
(3)C125
Figure 11:

Top Front of Engine


Object Number: 305311  Size: LF
(1)Manifold Absolute Pressure (MAP) Sensor
(2)C110
(3)C126
(4)Fuel Injector 5 Connector
(5)Engine Wiring Harness
(6)Evaporative Emissions (EVAP) Canister Purge Solenoid Valve
(7)Fuel Injector 3
(8)Fuel Injector 1
(9)Ignition Control Module (ICM) Wiring Harness
Figure 12:

Front Of Vehicle


Object Number: 329508  Size: LF
(1)G101
(2)C141
(3)Fog Lamp Connector (LH)
(4)Ambient Air Temperature Gauge Sensor
(5)Fog Lamp Connector (RH)
(6)Horn Connector
(7)C120
(8)Underhood Accessory Wiring Junction Block C3
(9)C142
Figure 13:

Front Wheel Speed Sensor


Object Number: 374829  Size: LF
(1)C171 (LH Shown), C172 (RH SImilar)
(2)Forward Lamp Wiring Harness
(3)Front Wheel Speed Sensor Connector
(4)Front Wheel Speed Sensor
Figure 14:

Right Front Wheel


Object Number: 374830  Size: LF
(1)RF Wheel Speed Sensor Connector
(2)Wheel Speed Sensor
(3)C172
Figure 15:

C200, C204 and Relays Behind Right Side of Instrument Panel


Object Number: 305348  Size: LF
(1)Instrument Panel Wiring Harness
(2)Cross Car Bdam Underside
(3)G200 (SIR and Instrument Panel Grounds)
(4)C200
(5)C204
(6)Relays (Accessory Delay Time (RAP) and Rear Window Defogger Relays Shown, All Others Not Used)
Figure 16:

Steering Column


Object Number: 327663  Size: LF
(1)C201
(2)C215
(3)C205
Figure 17:

Instrument Panel


Object Number: 305347  Size: LF
(1)C216 (Instrument Panel In-Line to Inflatable Restraint Instrument Panel Module)
(2)Inflatable Restraint Instrument Panel Module
(3)Instrument Panel Wiring Harness
Figure 18:

Below I/P, Inside of Floor Console


Object Number: 374758  Size: LF
(1)Driver Seat Heater Switch
(2)Driver Seat Heater Switch Connector
(3)C240
(4)S238
(5)S264
(6)Floor Console Accessory Power Receptacle
Figure 19:

Center of Instrument Panel


Object Number: 329657  Size: LF
(1)C242
(2)Cigar Lighter Wiring Jumper
(3)Cigar Lighter
(4)Ashtray
Figure 20:

Center of Instrument Panel, Behind Heater-A/C Control


Object Number: 374742  Size: LF
(1)C252
Figure 21:

Radio -- Center of Instrument Panel


Object Number: 305327  Size: SH
(1)Radio
(2)Antenna Lead
(3)C290
Figure 22:

Left Side of Passenger Compartment


Object Number: 377000  Size: LF
(1)C301
(2)C303
Figure 23:

Right Side of Passenger Compartment


Object Number: 374801  Size: LF
(1)C302
(2)C304
Figure 24:

Floor of Driver Compartment


Object Number: 374749  Size: LF
(1)C312(Buick Only)
(2)C311 (If Equipped)
Figure 25:

Underside of Driver Seat


Object Number: 374752  Size: LF
(1)C311
(2)S330
Figure 26:

Center Console


Object Number: 374760  Size: LF
(1)A/T Shift Lock Actuator Electrical Connector
(2)A/T Shift Lock Actuator
(3)Inline Harness Connector
(4)PRNDL Bulb
(5)S374
(6)Performance Shift Connector
Figure 27:

Right Side Rear Door (Left Side Rear Door Similar)


Object Number: 327673  Size: LF
(1)C356 (RH Shown)/C335(RH Similar)
(2)P800 (RH Shown)/P700(LH Similar)
Figure 28:

Right Center of Passenger Compartment


Object Number: 374802  Size: LF
(1)C356
Figure 29:

C371, C372 -- Below Rear of Vehicle (RH Similar)


Object Number: 305374  Size: SF
(1)C371 LH/C372 RH
(2)P371 LH/P372 RH
Figure 30:

Radio Antenna Module, C390, C395, and C399 -- RH C-Pillar


Object Number: 305357  Size: SF
(1)Radio Antenna Module
(2)Rear Defogger Grid Connection
(3)C390
(4)C399
(5)C395
Figure 31:

Foward Center Roof


Object Number: 374793  Size: LF
(1)C398
Figure 32:

Rear Of Vehicle


Object Number: 327684  Size: SF
(1)P400
(2)C400
Figure 33:

Right Side Of Passenger Compartment (Sedan Shown) (Coupe Similar)


Object Number: 327680  Size: SF
(1)C405
(2)P372
Figure 34:

Rear Compartment Lid


Object Number: 327685  Size: LF
(1)C430
Figure 35:

Right Side Of Engine Compartment


Object Number: 327643  Size: LF
(1)G100
Figure 36:

Lower Front of Engine (RPO LG8)


Object Number: 327396  Size: LF
(1)G117 (Engine Compartment Ground)
(2)G111/G113 (Ignition Control Module, Engine Electronic and Battery Grounds)
(3)Starter Assembly
(4)Bank 1 Knock Sensor (KS)
(5)Positive Battery Cable
(6)Engine Oil Pressure Indicator Switch
Figure 37:

Top Right of Engine -- RPO L36,L67


Object Number: 305310  Size: LF
(1)Ignition Coils
(2)Ignition Control Module (ICM)
(3)G111
(4)Ignition Control Module (ICM) Wiring Harness
Figure 38:

Lower Front Of VIN K Engine Compartment (VIN 1 Similar)


Object Number: 327654  Size: LF
(1)G113/G117
Figure 39:

Left Rear Of Engine Compartment


Object Number: 327645  Size: LF
(1)C103
(2)C101
(3)C181
(4)G119
(5)C171
(6)P101
(7)P103
Figure 40:

Behind Left Side Of Instrument Panel


Object Number: 327670  Size: LF
(1)G201 (Radio and IP Electronic Grounds)
Figure 41:

Below Left Side Of Steering Column


Object Number: 327668  Size: LF
(1)P500 (Left Shown)/P600 (Right Similar)
(2)G205
Figure 42:

Left Side Of Passenger Compartment (Sedan Shown) (Coupe Similar)


Object Number: 327675  Size: SF
(1)C301
(2)C303
(3)G301
(4)C311
(5)C325
(6)P371
(7)C355
Figure 43:

Right Side Of Passenger Compartment (Sedan Shown) (Coupe Similar)


Object Number: 327678  Size: SF
(1)C356
(2)P372
(3)G302
(4)C302
(5)C304
Figure 44:

Left Rear Of Engine Compartment


Object Number: 327645  Size: LF
(1)C103
(2)C101
(3)C181
(4)G119
(5)C171
(6)P101
(7)P103
Figure 45:

Left Door (Coupe) (Right Similar)


Object Number: 327671  Size: LF
(1)P500 (Left Shown)/P600 (Right Similar)
(2)C301 (Left Shown)/C302 (Right Similar)
(3)C303 (Left Shown)/C304 (Right Similar)
Figure 46:

Left Side of Engine Compartment


Object Number: 374671  Size: LF
(1)S106
(2)A/C Refrigerent Pressure Sensor
Figure 47:

Hulkhead of Engine Compartment


Object Number: 374841  Size: LF
(1)Electronic Brake Traction Control Module Connector
(2)S131
(3)Elerctronic Brake Traction Control Module
Figure 48:

Top of Instrument Panel


Object Number: 374732  Size: LF
(1)Instrument Cluster Head-Up Display (HUD) Module
(2)S209
(3)S219
(4)S289
(5)S290
(6)Instrument Cluster C1
(7)Instrument Cluster C2
(8)Instrument Cluster Head-Up Display (HUD) Connector
Figure 49:

Below I/P, Inside of Floor Console


Object Number: 374758  Size: LF
(1)Driver Seat Heater Switch
(2)Driver Seat Heater Switch Connector
(3)C240
(4)S238
(5)S264
(6)Floor Console Accessory Power Receptacle
Figure 50:

Below LH Instrument Panel


Object Number: 374704  Size: LF
(1)S282
(2)S265
(3)DRL Module
(4)Left IP Courtesy Lamp
(5)DRL Diode (Not Shown)
(6)Theft Deterrent Relay
(7)Hazard/Turn Signal Flasher Relay
(8)Rear Compartment Lid Release Relay
Figure 51:

Interior Roof


Object Number: 374790  Size: LF
(1)Sunshade Illuminated Mirror Connector
Figure 52:

Inside Rear Compartment


Object Number: 374786  Size: LF
(1)Rear Compartment Courtesy Lamp Switch Connector
(2)S416
(3)Rear Compartment Lid Lock Release Actuator