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

Seat Belt Schematics (with WHB)


Object Number: 2195247  Size: FS
Master Electrical Component List
Seat Belt System Description and Operation
Control Module References
Seat Belts Schematics (without WHB)
SIR Caution for Zoning
Figure 2:

Seat Belt Schematics (without WHB)


Object Number: 2195249  Size: FS
Master Electrical Component List
Seat Belt System Description and Operation
Control Module References
Seat Belts Schematics (with WHB)
SIR Caution for Zoning