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

Power, Ground and Serial Data


Object Number: 626510  Size: FS
Master Electrical Component List
Body Control System Description and Operation
References to ABS, Audible Warnings, Body Rear End, Brake Warning, Cruise Control, Engine Controls, Horns, HVAC, IP, Keyless Entry, and Theft Deterrent
Fuse Block-Underhood Fuse: 19 Fuse Block-Center Console Fuses: IGN 1 MDL, SIR, INTEMM and BCM-ACCY
Fuse Block-Underhood Fuse: 19 Fuse Block-Center Console Fuses: IGN 1 MDL, SIR, INTEMM and BCM-ACCY
Fuse Block-Underhood Fuse: 47 Fuse Block-Center Console Fuses: INKEY, KEY SOL, IGN 0 and FRT BLWR
Cigar Lighter/Auxiliary Outlets Schematics-Buick
Fuse Block-Underhood Fuses: 32, 36, 9, 5 and 28
Fuse Block-Underhood Fuse: 45 Fuse Block-Center Console Fuses: BCM D, GATE REL, RR AUX, PWR MIR, ELC BATT and PWR STS Circuit Breaker
Fuse Block-Underhood Fuse:48 Fuse Block-Center Console Fuses:BCM L, HZD FL, HUD, RADIO, RD AMP and IP MDL
Ground G202 Schematics
Ground G202 Schematics
Ground G301 Schematics
Ground G200 Schematics
Fuse Block-Underhood Fuse: 47 Fuse Block-Center Console Fuses: INKEY, KEY SOL, IGN 0 and FRT BLWR
Figure 2:

Subsystem References


Object Number: 829112  Size: FS
Master Electrical Component List
Body Control System Description and Operation
References to Doors
DLC, Ground, and Power
Indicators, Intrusion Detection and Warning
Keyless Entry Schematics
Gauges
Compressor Control
Horns Schematic
Indicators, Intrusion Detection and Warning
Van Rear Parking Assist (RPA) Module Power and Ground
Audible Warnings Schematics
DLC, Indicators, and Traction Control Switch
Brake Warning Schematics
Figure 3:

Door and Body Rear End References


Object Number: 829115  Size: FS
Master Electrical Component List
Body Control System Description and Operation
References to Entertainment and Lighting
References to ABS, Audible Warnings, Body Rear End, Brake Warning, Cruise Control, Engine Controls, Horns, HVAC, IP, Keyless Entry, and Theft Deterrent
Ajar Indicators
Door Lock Switches
Door Lock Actuators
Lift Window, Endgate and Liftgate
Figure 4:

Lighting References


Object Number: 629219  Size: FS
Master Electrical Component List
Body Control System Description and Operation
References to Doors
Dimming, Lamps, and Relays
Indicator, Lamp Control
Fog Lights Schematics
Parklamps
IP Lighting, Lamp Control
Parklamps
IP Lighting, Lamp Control
Door Open Switches
Dimming Control, Doors, Rear Radio, and Steering Wheel