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

Interior Lamp Switch, Instrument Panel and Driver Door Lighting


Object Number: 1888818  Size: FS
Master Electrical Component List
Interior Lighting Systems Description and Operation
Control Module References
Steering Wheel and Front Passenger Door Lighting
Figure 2:

Steering Wheel and Front Passenger Door Lighting


Object Number: 1888820  Size: FS
Master Electrical Component List
Interior Lighting Systems Description and Operation
Control Module References
Class 2 Dimming
Interior Lamp Switch, I/P and Driver Door Lighting
Figure 3:

Class 2 Dimming


Object Number: 1888822  Size: FS
Master Electrical Component List
Interior Lighting Systems Description and Operation
Control Module References
Steering Wheel and Front Passenger Door Lighting