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

Power, Ground, Serial Data, and Disable Switch


Object Number: 1473221  Size: FS
Master Electrical Component List
SIR System Description and Operation
Body Control Module (BCM) Programming/RPO Configuration
Driver and Passenger Inflatable Restraint Module and Sensors
SIR Schematic Icons
B+ Bus - Underhood Fuse Block
B+ Bus - Underhood Fuse Block
B+ Bus - Underhood Fuse Block
B+ Bus - Underhood Fuse Block
RUN/CRANK Relay Bus - 1 of 3, CRUISE, SIR, and TRANS Fuses
Indicators
Data Link Connector (DLC) Schematics
Figure 2:

Driver, and Passenger Inflatable Restraint Modules, and Sensors


Object Number: 1473222  Size: FS
Master Electrical Component List
SIR System Description and Operation
Body Control Module (BCM) Programming/RPO Configuration
Seat Position Switches and Seat Belt Pretensioners
Power, Ground, Serial Data, and Disable Switch
SIR Schematic Icons
SIR Schematic Icons
SIR Schematic Icons
SIR Schematic Icons
SIR Schematic Icons
SIR Schematic Icons
SIR Schematic Icons
SIR Schematic Icons
SIR Schematic Icons
Figure 3:

Seat Position Switches, and Seat Belt Pretensioners


Object Number: 1473284  Size: FS
Master Electrical Component List
SIR System Description and Operation
Body Control Module (BCM) Programming/RPO Configuration
Driver and Passenger Inflatable Restraint Module and Sensors
SIR Schematic Icons
SIR Schematic Icons