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

Power, Ground, Serial Data and Disable Switch


Object Number: 1222087  Size: FS
Master Electrical Component List
SIR System Description and Operation
Driver and Passenger Inflatable Restraint Modules and Sensors
SIR Caution for Zoning
SIR Schematic Icons
Seat Belt Schematics
ACCY/RUN and RUN/START BUS BAR
Data Link Connector (DLC) Schematics
G103, G104
Park Lamps
G103, G104
Figure 2:

Driver and Passenger Inflatable Restraint Modules and Sensors


Object Number: 1222089  Size: FS
Master Electrical Component List
SIR System Description and Operation
Seat Position Switches
Power, Ground, Serial Data and Disable Switch
SIR Caution for Zoning
SIR Schematic Icons
SIR Schematic Icons
SIR Schematic Icons
SIR Schematic Icons
Figure 3:

Seat Position Switches


Object Number: 1222112  Size: FS
Master Electrical Component List
SIR System Description and Operation
Driver and Passenger Inflatable Restraint Modules and Sensors
SIR Caution for Zoning
Seat Belt Schematics