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

BCM Ground, Power, Serial Data


Object Number: 1998882  Size: FS
Master Electrical Component List
Intelligent Switching Unit Description and Operation
Control Module References
BCM References - Audible Warnings, Defogger, Door Lock/Indicator, Exterior Lights, SIR, Transmission
B+ Bus
Ignition Switch
Fuse Block - I/P F1, F2, F3, F11, F12, F18 Fuses
Ignition Switch
Fuse Block - I/P F4, F13, F21 Fuses
Fuse Block - I/P F4, F13, F21 Fuses
Power, Ground, Class 2
G301 (LHD)
G302 (RHD)
Figure 2:

BCM References - Audible Warnings, Defogger, Door Lock/Indicator, Exterior Lights, SIR, Transmission


Object Number: 1998883  Size: FS
Master Electrical Component List
Intelligent Switching Unit Description and Operation
Control Module References
BCM References - Immobilizer, Release Systems, Theft Deterrent, Windows, Wiper/Washer
BCM Ground, Power, Serial Data
Defogger Schematics
Turn and Hazard Lamps
Speed Sensors
Speed Sensors
Manual Transmission Schematics
Manual Transmission Schematics
Door Lock/Indicator Schematics
Power, Ground, Indicators and Sensors
Audible Warnings Schematics
Figure 3:

BCM References - Immobilizer, Release Systems, Theft Deterrent, Windows, Wiper/Washer


Object Number: 1998884  Size: FS
Master Electrical Component List
Intelligent Switching Unit Description and Operation
Control Module References
MCM Ground, Power, Shiftlock References
BCM References - Audible Warnings, Defogger, Door Lock/Indicator, Exterior Lights, SIR, Transmission
Driver Window Switch, Motor (AA7)
Release Systems Schematics
Holden w/o CE1
Except Holden w/o CE1
Theft Deterrent System Schematics
Immobilizer Schematics
Figure 4:

MCM Ground, Power, Shiftlock References


Object Number: 1998885  Size: FS
Master Electrical Component List
Intelligent Switching Unit Description and Operation
Control Module References
MCM - Lighting System References
BCM References - Immobilizer, Release Systems, Theft Deterrent, Windows, Wiper/Washer
B+ Bus
Fuse Block - I/P F8, F9, F15, F22, F23 Fuses
Ignition Switch
Fuse Block - I/P F1, F2, F3, F11, F12, F18 Fuses
Fuse Block - I/P F4, F13, F21 Fuses
Fuse Block - I/P F8, F9, F15, F22, F23 Fuses
Fuse Block - I/P F5, F6, F7, F14 Fuses
G202, 2 of 2
M98/MH8
MH7
G202, 1 of 2
Figure 5:

MCM - Lighting System References


Object Number: 1998887  Size: FS
Master Electrical Component List
Intelligent Switching Unit Description and Operation
Control Module References
MCM - Mirror System References
MCM Ground, Power, Shiftlock References
Battery Saver
Interior Lights Schematics
Dimming Control
Headlights/Daytime Running Lights (DRL) Schematics
Fog Lights Schematics
Backup Lamps (MH7/MH8)
Backup Lamps (M98/MFB/MFN)
Figure 6:

MCM - Mirror System References


Object Number: 1998888  Size: FS
Master Electrical Component List
Intelligent Switching Unit Description and Operation
Control Module References
MCM - Lighting System References
Power Folding Mirror (DL7)
Power Folding Mirror (DL7)