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

Power, Ground and DLC


Object Number: 1808416  Size: FS
Master Electrical Component List
Body Control System Description and Operation
Control Module References
Controlled/Monitored Subsystem References 1 of 4
Underhood Fuse Block IBCM1, Body Control Module (BCM) AIRBAG (BATT), CLUSTER/THEFT, HVAC CTRL (BATT), IGN SENSOR and RADIO Fuses
Underhood Fuse Block IBCM1, Body Control Module (BCM) AIRBAG (BATT), CLUSTER/THEFT, HVAC CTRL (BATT), IGN SENSOR and RADIO Fuses
Underhood Fuse Block IBCM 2, BATTERY SENSE, Body Control Module (BCM), ACCESSORY Relay, DOOR LOCK, INTERIOR LIGHTS, POWER WINDOWS, ROOF/HEAT SEAT and WIPER SW Fuses
Power, Ground and High Speed Serial Data
Low Speed Serial Data
Underhood Fuse Block IBCM1, Body Control Module (BCM) AIRBAG (BATT), CLUSTER/THEFT, HVAC CTRL (BATT), IGN SENSOR and RADIO Fuses
Keyless Entry
G305
G201
G203
Figure 2:

Controlled/Monitored Subsystem References 1 of 4


Object Number: 1808421  Size: FS
Master Electrical Component List
Body Control System Description and Operation
Control Module References
Controlled/Monitored Subsystem References 2 of 4
Power, Ground and Serial Data
Underhood Fuse Block IBCM 2, BATTERY SENSE, Body Control Module (BCM), ACCESSORY Relay, DOOR LOCK, INTERIOR LIGHTS, POWER WINDOWS, ROOF/HEAT SEAT and WIPER SW Fuses
Underhood Fuse Block IBCM 2, BATTERY SENSE, Body Control Module (BCM), ACCESSORY Relay, DOOR LOCK, INTERIOR LIGHTS, POWER WINDOWS, ROOF/HEAT SEAT and WIPER SW Fuses
Power, Ground and Blower Motor Controls
Underhood Fuse Block RUN RLY, RBEC2, Body Control Module (BCM), HVAC BLOWER, HVAC CTRL (IGN) Rear Fuse Block, DRV ST, EMISSION 2, FUEL PUMP, PARK LAMPS and TRUNK Fuses
Figure 3:

Controlled/Monitored Subsystem References 2 of 4


Object Number: 1808423  Size: FS
Master Electrical Component List
Body Control System Description and Operation
Control Module References
Controlled/Monitored Subsystem References
Controlled/Monitored Subsystem References 1 of 4
Release System Schematics
Theft Deterrent System Schematics
Immobilizer Schematics
Door Lock Switches
Door Lock Actuators
Door Ajar Indicators
Figure 4:

Controlled/Monitored Subsystem References 3 of 4


Object Number: 1808424  Size: FS
Master Electrical Component List
Body Control System Description and Operation
Control Module References
Controlled/Monitored Subsystem References
Controlled/Monitored Subsystem References 2 of 4
Headlights/Daytime Running Lights (DRL) Schematics
Fog Lights Schematics
Backup Lamps and License Lamps
Turn Signal Lamps
Ambient Light Sensor, Brake Pedal Position Sensor, Hazard Switch and Turn Signal/Multifunction Switch
Marker Lamps and Tail Lamps
Courtesy Lamps 2 of 2
Displays
Figure 5:

Controlled/Monitored Subsystem References 4 of 4


Object Number: 1808426  Size: FS
Master Electrical Component List
Body Control System Description and Operation
Control Module References
Controlled/Monitored Subsystem References
Power, Ground, Serial Data and MIL
Power, Ground, Serial Data and MIL
Power, Ground, Serial Data and MIL
Power, Ground, Serial Data and MIL
Shift Lock Control Schematics
Compressor Controls
Compressor Controls
Brake Pedal Position Sensor, Data Link Communications and Traction Control Switch 2 of 2
Brake Warning System
Steering Wheel Controls
Adjustable Pedal Schematics
Defogger Schematics
Horn Schematics
Wiper/Washers Schematics