GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 2008 🢒 Terraza Ext. 🢒 Diagnostic Navigation 🢒 Vehicle Diagnostic Information 🢒 Body Control System Schematics
Figure 1:

Ground, Power, and References to Data Communication and Power Distribution
Object Number: 1921910 Size: FS
Master Electrical Component List
Body Control System Description and Operation
Control Module References
References to Brakes, Cruise Control, Defogger, Exterior Lights, Horn, Object Detection, Power Moding, Shift Lock Control and Wiper/Washer
Figure 2:

References to Brakes, Cruise Control, Defogger, Exterior Lights, Horn, Object Detection, Power Moding, Shift Lock Control, and Wiper/Washer
Object Number: 1921912 Size: FS
Master Electrical Component List
Body Control System Description and Operation
Control Module References
References to Antilock Brakes System, Cruise Control, HVAC and Lighting
Ground, Power and References to Data Communication and Power Distribution
Figure 3:

References to Antilock Brake System, Cruise Control, HVAC, and Lighting
Object Number: 1921914 Size: FS
Master Electrical Component List
Body Control System Description and Operation
Control Module References
References to Door Locks, Lighting, Sliding Door and Theft Deterrent
References to Brakes, Cruise Control, Defogger, Exterior Lights, Horn, Object Detection, Power Moding, Shift Lock Control and Wiper/Washer
Figure 4:

References to Door Locks, Lighting, Sliding Door and Theft Deterrent
Object Number: 1921916 Size: FS
Master Electrical Component List
Body Control System Description and Operation
Control Module References
References to Audible Warnings, HVAC, Immobilizer, Remote Function, Seat Heating and Cooling, Starting and Charging, and Theft Deterrent
References to Antilock Brakes System, Cruise Control, HVAC and Lighting
Figure 5:

References to Audible Warnings, HVAC, Immobilizer, Remote Function, Seat Heating and Cooling, Starting and Charging, and Theft Deterrent
Object Number: 1921919 Size: FS
Master Electrical Component List
Body Control System Description and Operation
Control Module References
References to Door Locks, Lighting, Sliding Door and Theft Deterrent