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

Dimmer Switch Inputs and Instrument Panel Lighting


Object Number: 1217934  Size: FS
Master Electrical Component List
Interior Lighting Systems Description and Operation
Steering Wheel and Doors
Park Lamp Relay, Park/Turn Signal Lamps and Tail Lamps
Ambient Light Sensor, Brake Pedal Position Sensor, Grounds, Hazard Switch, Serial Data and Turn Signal/Multifunction Switch
Park Lamp Relay, Park/Turn Signal Lamps and Tail Lamps
Steering Wheel and Doors
Steering Wheel and Doors
Fog Lamps
G203
Figure 2:

Steering Wheel and Doors


Object Number: 1217937  Size: FS
Master Electrical Component List
Interior Lighting Systems Description and Operation
Seats and Center Console
Dimmer Switch Inputs and Instrument Panel Lighting
Dimmer Switch Inputs and Instrument Panel Lighting
Dimmer Switch Inputs and Instrument Panel Lighting
Lighting Systems Schematic Icons
Seats and Center Console
G201
Power, Ground, Data Link, and Steering Wheel Controls Switches
Sedan
Outside Mirrors
Power Windows
Door Lock Switches
Door Lock Switches
Lighting Systems Schematic Icons
G301
G303
G301
G201
G303
G301
Figure 3:

Seats and Center Console


Object Number: 1419794  Size: FS
Master Electrical Component List
Interior Lighting Systems Description and Operation
Steering Wheel and Doors
Steering Wheel and Doors
G303
G303
A/T Shift Lock Controls Schematics
Brake Pedal Position Sensor, Traction Control Switch, and Data Link Communications
Rear Seat Audio (RSA) Controller
G303
G304 and G305