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

I/P Lighting, Lamp Control


Object Number: 828668  Size: FS
Master Electrical Component List
Interior Lighting Systems Description and Operation
Roof Lighting
Indicator, Lamp Control
Ground G202 Schematics
Ground G202 Schematics
Ground G200 Schematics
Ground G200 Schematics
Figure 2:

Roof Lighting -- Pontiac


Object Number: 629003  Size: FS
Master Electrical Component List
Interior Lighting Systems Description and Operation
Roof Lighting-Buick
IP Lighting, Lamp Control
G303
G303
Figure 3:

Roof Lighting -- Buick


Object Number: 828674  Size: FS
Master Electrical Component List
Interior Lighting Systems Description and Operation
Door Open Switches
Roof Lighting
Ground G303 Schematics
Ground G303 Schematics
Figure 4:

Door Switches


Object Number: 629413  Size: FS
Master Electrical Component List
Interior Lighting Systems Description and Operation
Lift Window, Endgate and Liftgate Switches
Roof Lighting-Buick
Ground G301 Schematics
Ground G301 Schematics
Ground G301 Schematics
Ground G302 Schematics
Ground G302 Schematics
Ground G302 Schematics
Figure 5:

Lift Window, Endgate and Liftgate Switches


Object Number: 828676  Size: FS
Master Electrical Component List
Interior Lighting Systems Description and Operation
Door Open Switches
G401 (2 of 3)
G401 (2 of 3)
Ground G301 Schematics