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

Power, Ground, Serial Data and Message Center


Object Number: 1016155  Size: FS
Master Electrical Component List
Indicators
Fuse Block-Underhood Fuse: 48, Fuse Block Center Console Fuses
Fuse Block-Underhood Fuse: 47, Fuse Block Cent Console Fuses
Fuse Block-Underhood Fuse: 48, Fuse Block Center Console Fuses
Windshield Wiper/Washer
Ground G202 - Buick
Ground G202 - Buick
Data Link Connector (DLC) Schematics
Figure 2:

Indicators


Object Number: 816335  Size: FS
Master Electrical Component List
Gages
Power, Ground, Serial Data and Message Center
Panel Lamps - Buick, Page 2 of 2
Turn/Stop Lamps and Indicators - Pontiac
Turn/Stop Lamps and Indicators - Pontiac
Ground G201 - Buick
Brake Warning System Schematics
Power, DLC, Ground and MIL
Figure 3:

Gages


Object Number: 816337  Size: FS
Master Electrical Component List
Driver Information Center (DIC)
Indicators
EGR, EVAP
Data Link Connector (DLC) Schematics
Figure 4:

Driver Information Center (DIC)


Object Number: 816339  Size: FS
Master Electrical Component List
Gages
Ground G202 - Buick
Ground G202 - Buick