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

Power, Ground, DLC, Indicators, Sensors, and References


Object Number: 2151245  Size: FS
Master Electrical Component List
SIR System Description and Operation
Control Module References
Deployment Loops
Master Electrical Schematic Icons
Power Moding Schematics
Power Moding Schematics
Power, Ground , Class 2, and GM Low Speed Serial Data (CAN A)
Power, Ground , Class 2, and GM Low Speed Serial Data (CAN A)
Seat Belt Schematics
G302 and G303
Figure 2:

Deployment Loops


Object Number: 2151246  Size: FS
Master Electrical Component List
SIR System Description and Operation
Control Module References
Passenger Presence System
Power, Ground, DLC, Indicators, Sensors, and References
Master Electrical Schematic Icons
Figure 3:

Passenger Presence System


Object Number: 2151247  Size: FS
Master Electrical Component List
SIR System Description and Operation
Control Module References
Deployment Loops
Master Electrical Schematic Icons
Fuse Block - Rear F40, F39, F14, F16, F17, F18 and F12 Fuses
Seat Belt Schematics
G201 and G202
G201 and G202
G302 and G303