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

Steering Column Switches


Object Number: 314701  Size: MF
(1)Steering Wheel
(2)Steering Column
(3)Windshield Wiper Switch
(4)Windshield Washer Switch
(5)Cruise Control Switch
(6)Hazard Warning Switch
Figure 2:

Windshield Washer and Forward Lamp Harness


Object Number: 465195  Size: MF
(1)Forward Lamp Harness
(2)C116
(3)Windshield Washer Motor Wiring Harness
(4)Windshield Washer Motor, Front
(5)Windshield Washer Motor, Rear
(6)Windshield Washer Reservoir
(7)Battery, LH (Auxiliary/Diesel Only)
Figure 3:

Horn, Wiper Motor Module, Park/Turn, Fog and Headlamp


Object Number: 278089  Size: MF
(1)Left Front Headlamp Connectors (Composite)
(2)Left Front Park and Turn Lamp
(3)Left Fog Lamp Connector
(4)Left Horn
(5)Windshield Wiper Motor Module location
Figure 4:

Inflatable Restraint IP Module Switch


Object Number: 278181  Size: MF
(1)Rear Window Wiper/Washer Switch
(2)Liftgate Release Switch
(3)Ashtray Lamp
(4)Cigar Lighter
(5)Inflatable Restraint IP Module Switch (Pickup) / Daytime Running Lamps (DRL) Radio Override Switch (Z56) / Auxiliary Heater Fan Switch
Figure 5:

Rear Wiper/Washer Motor Module


Object Number: 277992  Size: MF
(1)Rear Window Wiper Motor Module
(2)Rear Window Washer Hose