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

Module Power, Ground, and DLC


Object Number: 623229  Size: FS
Master Electrical Component List
ABS Description and Operation
DLC, Indicators, and Traction Control Switch
Fuse Block-Underhood Fuses: 10, 6, 4, 13 and 30
Fuse Block-Underhood Fuses: 32, 36, 9, 5 and 28
Cigar Lighter/Auxiliary Outlets Schematics-Buick
Ground G117 Schematics
Figure 2:

Indicators and Traction Control-NW9


Object Number: 623234  Size: FS
Master Electrical Component List
ABS Description and Operation
Wheel Speed Sensors
Brake Pressure Modulation, Ground, Power, and Stoplamp Switch
Fuse Block-Underhood Fuse:48 Fuse Block-Center Console Fuses:BCM L, HZD FL, HUD, RADIO, RD AMP and IP MDL
Fuse Block-Underhood Fuse:48 Fuse Block-Center Console Fuses:BCM L, HZD FL, HUD, RADIO, RD AMP and IP MDL
Turn/Stop Lamps and Indicators - Buick
Cruise Control Schematics
Cigar Lighter/Auxiliary Outlets Schematics-Buick
Ground G200 Schematics
Ground G200 Schematics
Figure 3:

Wheel Speed Sensors


Object Number: 623228  Size: FS
Master Electrical Component List
ABS Description and Operation
DLC, Indicators, and Traction Control Switch