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

Indicator, Lamp Control


Object Number: 629309  Size: FS
Master Electrical Component List
Dimming, Lamps and Relays
Data Link Connector (DLC) Schematics
Ground G202 - Buick
Ground G202 - Buick
Ground G201 - Buick
Figure 2:

Dimming, Lamps, and Relays


Object Number: 828426  Size: FS
Master Electrical Component List
Indicators, Lamp Control
Fuse Block Underhood Fuses: 42, 17, 15, 18, 23 and 14
Ground G100 - Buick
Ground G201 - Buick
Ground G101 - Buick
Ground G101 - Buick
Ground G100 - Buick
Ground G201 - Buick