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

Inline Connectors


Object Number: 491649  Size: MF
(1)C109
(2)C108
(3)C102
(4)Fuse Block -- Underhood C1
(5) Fuse Block -- Underhood C2
(6) Fuse Block -- Underhood C3
(7)C101
(8)C112
(9)C216
(10)C200
(11)C202
(12)C302
(13)C303
(14)C215
(15)C205
(16)C204
(17)C201
(18)C106
(19)C500
(20)C503
(21)C700
(22)C701
(23)C703
(24)C600
(25)C603
(26)C800
(27)C801
(28)C803
(29)C301
(30)C406
(31)Fuse Block -- Rear C3
(32)Fuse Block -- Rear C2
(33)Fuse Block -- Rear C1
(34)C329
(35)C401
(36)C402
(37)C420
(38)C410
(39)C405
(40)C400
Figure 2:

Harness Pass Throughs


Object Number: 596663  Size: LF
(1)P103
(2)P102
(3)P104
(4)P600
(5)P800
(6)P400
(7)P402
(8)P410
(9)P403
(10)P401
(11)P700
(12)P500
(13)P100
Figure 3:

Upper Side of Engine


Object Number: 460305  Size: LF
(1)Exhaust Gas Recirculation (EGR) Valve
(2)Fuel Injector #6
(3)Fuel Injector #4
(4)Fuel Injector #2
(5)To Generator
(6)To Air Solenoid
(7)Heated Oxygen Sensor (H02S) Bank 1 Sensor 1
(8)S103
(9)S104
(10)To PCM
(11)C100
Figure 4:

Upper Front of Engine


Object Number: 460302  Size: LF
(1)Fuel Injector 3
(2)Evaporative Emissions (EVAP) Purge Canister
(3)Fuel Injector 5
(4)Idle Air Control (IAC) Valve
(5)Throttle Position (TP) Sensor
(6)Mass Air Flow (MAF) Sensor
(7)S106
(8)Engine Coolant Temp (ECT) Sensor
(9)C103
(10)S108
(11)S107
(12)Ignition Control Module (ICM)
(13)To Manifold Absolute Pressure (MAP) Sensor
(14)Fuel Injector 1
Figure 5:

Rear of the Engine, Below the Power Steering Pump


Object Number: 629391  Size: MF
(1)S101
(2)S102
Figure 6:

Left Front Corner of the Vehicle


Object Number: 596709  Size: MF
(1)C108 (Left); C109 (Right)
(2)Horn Assembly
(3)Foglamp (Left Shown, Right Similar)
(4)Forward Lamp Harness
(5)Headlamp Assembly (Left Shown, Right Similiar)
(6)Radiator
Figure 7:

Engine Compartment, in the Left Front Corner


Object Number: 460288  Size: LF
(1)Powertrain Control Module (PCM) C1
(2)Powertrain Control Module (PCM) C2
(3)Air Cleaner Assembly
(4)Powertrain Control Module (PCM)
(5)S105
Figure 8:

Engine Compartment, In the Right Front Corner


Object Number: 575865  Size: MF
(1)Body Harness
(2)Fuse Block-Underhood C2
(3)Forward Lamp Harness
(4)G103
(5)S100
(6)Fuse Block-Underhood C1
(7)C102
Figure 9:

Engine Compartment, Near the Left Shock Tower


Object Number: 461080  Size: LF
(1)Brake Fluid Level Sensor
(2)Cruise Control Module
(3)C101
(4)G106
Figure 10:

Engine Compartment, Left Rear


Object Number: 596760  Size: MF
(1)C101
(2)Brake Fluid Level Switch Connector
(3)Cruise Control Module Connector
(4)G106
(5)C106
(6)P100
(7)C112
Figure 11:

Engine Compartment, Right Rear


Object Number: 617272  Size: MF
(1)P104
(2)P100
(3)Body Harness, Leftside
(4)Battery Cable
(5)Body Harness, Right Side
(6)P102
(7)C106
Figure 12:

Passenger Compartment, Lower Left Front Corner


Object Number: 461069  Size: LF
(1)C215
(2)S215
(3)S216
(4)P100
(5)Inflatable Restraint Steering Wheel Module Coil
(6)C200
(7)C202
(8)To Stop Lamp Switches
(9)C500
(10)G200
(11)S217
(12)Park Brake Switch
Figure 13:

Passenger Compartment, In the Right Front Corner


Object Number: 575861  Size: MF
(1)Blower Motor Connector
(2)Inflatable Restraint IP Module
(3)G201
(4)C600
(5)Right Side Body Harness
(6)Dash Integration Module (DIM), C1
(7)Dash Integration Module (DIM), C2
(8)Dash Integration Module (DIM), C3
(9)P102
(10)C201
(11)S210
Figure 14:

Instrument Panel, Behind the Left Side


Object Number: 595257  Size: MF
(1)Instrument Panel Integration Module (IPM)
(2)Instrument Panel Integration Module (IPM) C1
(3)Instrument Panel Integration Module (IPM) C2
(4)S202
(5)S200
(6)Data Link Connector (DLC)
(7)C200
Figure 15:

Instrument Panel, Right Side Rear View


Object Number: 599816  Size: MF
(1)C201
(2)S206
(3)S205
(4)C205
(5)C204
(6)Courtesy Lamp Connector
(7)Rear Compartment Lid Release Switch Connector
(8)S207
Figure 16:

IP Dash, Left Rear View


Object Number: 491511  Size: MF
(1)C216
Figure 17:

Dash Panel, Right Front View


Object Number: 596721  Size: MF
(1)Radio Antenna Connector
(2)Antenna Cable
(3)C201
Figure 18:

Instrument Panel, Left Side Wiring


Object Number: 599812  Size: MF
(1)C216
(2)S203
(3)Turn Signal/Hazard Flasher Module
(4)Cigar Lighter (w/o D55)
(5)C210
(6)C211 (w/o D55)
(7)Cigar Lighter (w/ D55)
(8)Head Up Display Switch
(9)Headlamp Switch
(10)Inside Air Temperature Sensor
(11)Head Up Display (HUD)
(12)S208
(13)S204
(14)Sunload Sensor Assembly
(15)Drivers Infomation Center (DIC)
Figure 19:

Under Right Side of Dash


Object Number: 482184  Size: MF
(1)C205 (CJ2)
(2)S222
(3)S221
(4)S220
(5)C204 (C67)
Figure 20:

Passenger Compartment, Wiring Harness Under the Carpet


Object Number: 596773  Size: LF
(1)S401
(2)S307
(3)SP306
(4)S302
(5)S305
(6)S304
(7)S303
(8)SP301
(9)C301
(10)SP310
(11)C301
(12)C303
(13)Battery
(14)S309
(15)S308
(16)Fuse Block -- Rear
Figure 21:

Under the Right Front Seat


Object Number: 596737  Size: MF
(1)Right Front Seat (Left Similiar)
(2)C301 (Right); C302 (Left)
(3)Passenger Inflatable Restraint Side Impact Inflator Module (Driver Side Similiar)
Figure 22:

LH Front Seat Back


Object Number: 492615  Size: MF
(1)Lumbar Vertical Position Sensor
(2)Lumbar Vertical Motor
(3)LH Seat Recline Motor
(4)S331
(5)S330
(6)Lumbar Horizontal Motor
(7)Lumbar Horizontal Position Sensor
Figure 23:

Front Seat Wiring


Object Number: 596681  Size: LF
(1)LH S315, RH S316
(2)LH S324, RH S322
(3)LH S321, RH S323
(4)LH C314, RH C317
(5)LH C318
(6)LH S317
(7)LH S319
(8)LH S320
Figure 24:

Passenger Compartment, Under the Right Side of the Rear Seat


Object Number: 575864  Size: MF
(1)G305
(2)Body Harness, Right Side
(3)Battery
(4)C305
(5)S345 (w/UE1)
(6)Battery Positive Cable
(7)Fuse Block - Rear
Figure 25:

Passenger Compartment, Left Rear


Object Number: 596751  Size: MF
(1)C406
(2)Body Harness, Left
(3)Rear Shelf Harness
Figure 26:

Passenger Compartment, Near the Left Rear Pillar


Object Number: 596748  Size: MF
(1)Headliner Harness
(2)Left Body Harness
(3)C329
Figure 27:

Right Front Door Wiring


Object Number: 461054  Size: LF
(1)P500(LH) P600(RH)
(2)C500(LH) C600(RH)
(3)Inline To Body Harness (LH Similar)
(4)Door Harness (LH Similar)
Figure 28:

Right Front Door Module


Object Number: 461047  Size: LF
(1)RH Front Door Module (C3) (LH Similar)
(2)RH Front Door Module (C1) (LH Similar)
(3)RH Front Door Module (C2) (LH Similar)
(4)RH Front Door Module (C4) Outside Power Mirror Pigtail (LH Similar)
(5)C503 (LH) C603 (RH)
(6)RH Front Door Module (LH Similar)
(7)S500 (LH) S602 (RH)
Figure 29:

Right Rear Door (LH Similiar)


Object Number: 596742  Size: MF
(1)C800 (RH); C700 (LH)
(2)P800 (RH); P700 (LH)
(2)P800 (RH); P700 (LH)
(3)C801 (RH); C701 (LH)
Figure 30:

Right Rear Door


Object Number: 596745  Size: MF
(1)RR Door Lock Actuator; (LR Similar)
(2)RR Window Motor; (LR Similar)
(3)C803 (Right); C703 (Left)
(4)Right Rear Door Module (RRDM); (LRDM Similiar)
Figure 31:

Rear Compartment Lid Wiring


Object Number: 492956  Size: LF
(1)S412
(2)S411
(3)S413
Figure 32:

Left Rear Corner of the Vehicle


Object Number: 596757  Size: MF
(1)P403 (Left); P402 (Right)
(2)Tail Lamp Assembly
(3)Tail Lamp Jumper Harness
(4)Body Harness
(5)C400 (Left); C402 (Right)
Figure 33:

Under the Right Rear of the Vehicle


Object Number: 596754  Size: MF
(1)P401 (Right); P400 (Left)
(2)C420 (Right Body Harness); C401 (Left Body Harness)
(3)Fuel Tank Jumper Harness
(4)Left Body Harness (Right Body Harness Similar)
(5)Automatic Level Control (ALC) Compressor