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

Forward Lamp Harness


Object Number: 885131  Size: LF
(1)C106
(2)Cooling Fan-Right Connector
(3)G101
(4)Headlamp Assembly-Left Connector
(5)Ambient Air Temperature Sensor Connector (w/U68)
(6)Fog Lamp-LF Connector
(7)Cooling Fan-Left Connector
(8)Horn Assembly Connector
(9)Fog Lamp-RF Connector
(10)Headlamp Assembly-Right Connector
Figure 2:

Right Front of Engine Compartment


Object Number: 742092  Size: LF
(1)Positive Battery Cable
(2)Negative Battery Cable
(3)Junction Block-Underhood (Top and Bottom)
(4)G100
(5)Battery
Figure 3:

Right Side of Engine Compartment


Object Number: 514086  Size: LF
(1)P100
(2)Fusible Links (Underhood Junction Block)
Figure 4:

Right Front of Engine Compartment (w/6J3)


Object Number: 592715  Size: LF
(1)C122
Figure 5:

Right Front of Vehicle (w/6J3)


Object Number: 592714  Size: LF
(1) Wiring Blunt End
Figure 6:

Underhood Junction Block


Object Number: 487972  Size: LF
(1)C112
(2)Junction Block--Underhood (Top and Bottom)
Figure 7:

Left Center of Engine Compartment


Object Number: 732595  Size: LF
(1)C101
(2)G151
(3)A/C Refrigerant Pressure Sensor
(4)C113
(5)Electronic Brake Control Module (EBCM)
(6)Cruise Control Module (CCM)
Figure 8:

Left Center Rear of Engine Compartment


Object Number: 834273  Size: MF
(1)Brake Master Cylinder
(2)Cruise Control Module
(3)Left Front Strut Tower
(4)C101
(5)G171
Figure 9:

Right Side of Engine (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 10:

Lower Front of Engine


Object Number: 487943  Size: LF
(1)Fusible Links (Starter)
(2)Positive Battery Feed
(3)G113 (Negative Battery Cable)
(4)G113 (Engine Wiring Harness)
(5)Starter Solenoid Lead
Figure 11:

Lower Left Front of Engine


Object Number: 764972  Size: LF
(1)G113
(2)G113 (L36)
(3)G117
Figure 12:

Left Side of Instrument Panel


Object Number: 741678  Size: LF
(1)Instrument Panel
(2)Junction Block-Left I/P
(3)Junction Block-Left I/P Connector C2
(4)C217
(5)Main Body Wiring Harness
(6)C217
Figure 13:

Lower Center of Instrument Panel (w/o 9C1/9C3)


Object Number: 487935  Size: LF
(1)G203
(2)Inflatable Restraint Steering Wheel Module Coil Connector C1
(3)Data Link Connector (DLC)
(4)C201
(5)Stop Lamp Switch Connectors
(6)Cruise Control Release Switch Connector
(7)Cruise Control Release Switch
(8)G201
Figure 14:

Lower Center of Instrument Panel


Object Number: 741398  Size: LF
(1)Steering Column
(2)A/T Shift Lock Control Solenoid (w/o D55)
(3)Fuse Block-SEO (9C1/9C3)
(4)Circuit Breaker #1, #2, #3 (9C1/9C3)
Figure 15:

Behind Center Left Side of Instrument Panel


Object Number: 514083  Size: LF
(1)Radio Connector C1
(2)Radio Connector C2
(3)G202
(4)Data Link Connector (DLC)
(5)HVAC Control Module Connector C1
(6)HVAC Control Module Connector C2
(7)G201
(8)Ignition Switch Connector C2
(9)Ignition Switch Connector C1
(10)Passlock Sensor Connector
(11)Ignition Switch
Figure 16:

Bottom Center of Instrument Panel (w/o D55)


Object Number: 488022  Size: LF
(1)Ashtray
(2)C240
(3)C240
Figure 17:

Lower Center of Instrument Panel (w/o D55)


Object Number: 571263  Size: LF
(1)Cigar Lighter
Figure 18:

Right Side of Instrument Panel


Object Number: 858671  Size: LF
(1)C218 (IP Harness)
(2)C218 (Main Body Harness)
(3)Junction Block-Right IP C2 (Main Body Harness)
(4)C225 (Main Body Harness)
(5)C225 (IP Harness)
(6)Junction Block-Right IP C2 (IP Harness)
Figure 19:

Behind Right Side of Instrument Panel (9C1/9C3)


Object Number: 593551  Size: LF
(1)Auxiliary Power Drop Connector
Figure 20:

Behind Right Side of Instrument Panel (SEO)


Object Number: 741574  Size: LF
(1)Blower Motor
(2)C255
(3)C297
(4)Emergency Vehicle Front Lamps Flasher
(5)C297
(6)C209
(7)C299
Figure 21:

Right Front Floor (SEO)


Object Number: 592705  Size: LF
(1)Wiring Blunt End (Coiled)
Figure 22:

Lower Left of Passenger Compartment


Object Number: 488359  Size: LF
(1)Inflatable Restraint Side Impact Sensor (SIS)-LF (Impala)
(2)G301
(3)Junction Block-Left IP Connector C2
(4)Park Brake Switch Connector
(5)C301
(6)C205
(7)C355 (Impala)
Figure 23:

Console and Center of Floor


Object Number: 885136  Size: LF
(1)Cigar Lighter
(2)Heated Seat Switch-Driver (Monte Carlo) Connector
(3)Heated Seat Switch-Front Passenger (Monte Carlo) Connector
(4)C317
(5)C315
(6)Auxiliary Power Outlet
(7)Inflatable Restraint Sensing and Diagnostic Module (SDM) Connector
(8)C312
(9)Inflatable Restraint Side Impact Module-LF Connector
(10)C311
(11)A/T Shift Lock Control Solenoid
Figure 24:

Lower Right of Passenger Compartment


Object Number: 858706  Size: LF
(1)C302
(2)C218
(3)Junction Block-Right I/P Connector (Main Body Harness Side)
(4)C225
(5)G302
(6)C306 (w/9C1/9C3)
(7)C308 (w/9C1/9C3)
Figure 25:

Right Lower Corner of Rear Window


Object Number: 488082  Size: LF
(1)G309
(2)Rear Window Defogger Grid Connector
Figure 26:

Roof (w/6F5)


Object Number: 867132  Size: MF
(1)Blunt Wiring End for Roof (w/6F5)
(2)P380 (w/6F5)
Figure 27:

Right Rear of Roof (w/6C8)


Object Number: 592719  Size: LF
(1)Coaxial Cable (Roof)
(2)Coaxial Cable (Rear Compartment)
Figure 28:

Rear Compartment Above Right Wheelhouse


Object Number: 742085  Size: LF
(1)C430
(2)C400
(3)Battery Feed
(4)Junction Block-Rear