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

BCM Module Power and Ground


Object Number: 1748034  Size: FS
Master Electrical Component List
Body Control System Description and Operation
Control Module References
BCM Controlled/Monitored Subsystem References - 1 of 3
B+ Bus - Underhood Fuse Block
Ignition Switch - ACCY/RUN, RUN/START Bus Bars and IGN B Fuse
B+ Bus - Rear Fuse Block
Ignition Switch - ACCY/RUN, RUN/START Bus Bars and IGN B Fuse
Ignition Switch - ACCY/RUN/START, RUN, and START Bus Bars, IGN A and CRNK Fuses
Ignition Switch - ACCY/RUN/START, RUN, and START Bus Bars, IGN A and CRNK Fuses
`AIR PUMP, EAP, ECM, HDM, HI HEADLAMP - LT, HI HEADLAMP - RT, IGN COILS, LO HEADLAMP - LT, LO HEADLAMP - RT, PCM B AND TBC I Fuses
G302 - 2 of 2
G302 - 1 of 2, G303, and G304
Hydraulic Brake Schematics
Power Moding Schematics
Headlamp Washer - CE4
Steering Wheel Secondary/Configurable Control Schematics
Headlamp Washer - CE4
Horn Schematics
Audible Warnings Schematics
Figure 2:

BCM Controlled/Monitored Subsystem References - 1 of 3


Object Number: 1748036  Size: FS
Master Electrical Component List
Body Control System Description and Operation
Control Module References
BCM Controlled/Monitored Subsystem References - 2 of 3
BCM Module Power and Ground
Intrusion and Indication Sensor Signals - UA2/BAE
Rear Wiper/Washer Controls
Rear Doors
Power Windows - Left
Power Windows - Right
Figure 3:

BCM Controlled/Monitored Subsystem References - 2 of 3


Object Number: 1748037  Size: FS
Master Electrical Component List
Body Control System Description and Operation
Control Module References
BCM Controlled/Monitored Subsystem References - 3 of 3
BCM Controlled/Monitored Subsystem References - 1 of 3
Headlamp Switch
Headlamps
Fog Lights Schematics
Headlamp Switch
I/P Dimming Supply - 1 of 2
Intrusion and Indication Sensor Signals - UA2/BAE
Headlamp Switch
Park Lamp Relay
Backup Lamps
Interior Lamp Controls
Fog Lights Schematics
Headlamp Switch
Figure 4:

BCM Controlled/Monitored Subsystem References - 3 of 3


Object Number: 1748038  Size: FS
Master Electrical Component List
Body Control System Description and Operation
Control Module References
BCM Controlled/Monitored Subsystem References - 2 of 3
Ambient Light/Sunload Sensors
Ambient Light/Sunload Sensors
Headlamps
Interior Lamp Controls
Courtesy Lamp Supply
Windshield Wiper/Washer Motors
Door Switch Inputs and Liftgate Switch Inputs
SP205
Theft Deterrent Control Module, Alarm, and Hood Ajar Switch - UA2/BAE
Intrusion and Indication Sensor Signals - UA2/BAE
Theft Deterrent Control Module, Alarm, and Hood Ajar Switch - UA2/BAE
Passlock Sensor - w/o BAE