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
Roof Lighting - Pontiac
Fuse Block-Underhood Fuse: 48, Fuse Block Center Console Fuses
Indicators, Lamp Control
Fog Lights Schematics
03 B Van Exterior Lights Schematics (Park Lamps-Pontiac)
Ground G200 - Buick
Ground G200 - Buick
Ground G200 - Buick
Ground G202 - Buick
Ground G202 - Buick
Figure 2:

Roof Lighting -- Pontiac


Object Number: 629003  Size: FS
Master Electrical Component List
Roof Lighting - Buick
I/P Lighting, Lamp Control
Ground G303 - Pontiac
Ground G303 - Pontiac
Figure 3:

Roof Lighting -- Buick


Object Number: 828674  Size: FS
Master Electrical Component List
Door Switches
Roof Lighting - Pontiac
Ground G303-Buick
Ground G303-Buick
Figure 4:

Door Switches


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

Lift Window, Endgate and Liftgate Switches


Object Number: 828676  Size: FS
Master Electrical Component List
Door Switches
Ground G401, G402, and G403 - Pontiac
Ground G401, G402, and G403 - Pontiac
Ground G401, 402 and 403-Buick