GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2008 🢒 HHR 🢒 Power and Signal Distribution 🢒 Data Communications 🢒 Body Control System Schematics
Figure 1:

Door Lock Indicators, Power, Ground, Data Link, and Engine References
Object Number: 1887741 Size: FS
Master Electrical Component List
Body Control System Description and Operation
Control Module References
Run/Crank, RAP, HVAC Relays, BCM3, PWR Windows, Sunroof Fuses
Figure 2:

RUN/CRANK, RAP, HVAC Relays, BCM3, PWR Windows, Sunroof Fuses
Object Number: 1887743 Size: FS
Master Electrical Component List
Body Control System Description and Operation
Control Module References
SIR, Shift Lock Control, ABS, Brake Warning, Cruise Control, Keyless Entry, Wiper Washer, Engine Controls
Door Lock Indicators, Power, Ground, Data Link and Engine References
Figure 3:

SIR, Shift Lock Control, ABS, Brake Warning, Cruise Control, Keyless Entry, Wiper/Washer, Engine Controls
Object Number: 1887745 Size: FS
Master Electrical Component List
Body Control System Description and Operation
Control Module References
Lighting System References
Run/Crank, RAP, HVAC Relays, BCM3, PWR Windows, Sunroof Fuses
Figure 4:

Lighting System References
Object Number: 1887747 Size: FS
Master Electrical Component List
Body Control System Description and Operation
Control Module References
Body Rear End, Defogger, Headlights, DRL, Horns and Wiper/Washer References
SIR, Shift Lock Control, ABS, Brake Warning, Cruise Control, Keyless Entry, Wiper Washer, Engine Controls
Figure 5:

Body Rear End, Defogger, Headlights, DRL, Horns, and Wiper/Washer References
Object Number: 1887749 Size: FS
Master Electrical Component List
Body Control System Description and Operation
Control Module References
Lighting System References