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

Power, Ground and Blower Controls


Object Number: 793929  Size: FS
Master Electrical Component List
Air Delivery Description and Operation
A/C Compressor Controls
Fuse Block-Underhood Fuse: 47 Fuse Block-Center Console Fuses: INKEY, KEY SOL, IGN 0 and FRT BLWR
Fuse Block-Underhood Fuse: 47 Fuse Block-Center Console Fuses: INKEY, KEY SOL, IGN 0 and FRT BLWR
Fuse Block-Underhood Fuse: 47 Fuse Block-Center Console Fuses: INKEY, KEY SOL, IGN 0 and FRT BLWR
Fuse Block-Underhood Fuse:48 Fuse Block-Center Console Fuses:BCM L, HZD FL, HUD, RADIO, RD AMP and IP MDL
Ground G200 Schematics
Fuse Block-Center Console Fuse: IGN3 HVAC
Cigar Lighter/Auxiliary Outlets Schematics-Buick
IP
Stationary Windows Schematics
Ground G200 Schematics
Figure 2:

A/C Compressor Controls


Object Number: 808089  Size: FS
Master Electrical Component List
Air Delivery Description and Operation
Power, Ground and Blower Controls
Fuse Block-Underhood Fuses: 10, 6, 4, 13 and 30
Fuse Block-Underhood Buss Schematics
Ground G117 Schematics
Ground G117 Schematics
Cigar Lighter/Auxiliary Outlets Schematics-Buick
Figure 3:

Air Delivery Controls


Object Number: 793930  Size: FS
Master Electrical Component List
Air Temperature Description and Operation
A/C Compressor Controls
Fuse Block-Center Console Fuse: IGN3 HVAC
Ground G200 Schematics