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

Ground, Power, and Serial Data


Object Number: 1619544  Size: FS
Master Electrical Component List
SIR System Description and Operation
Control Module References
Impact Sensors
SIR Schematic Icons
Ignition Switch-ACCY/RUN and RUN/START Bus Bars, AIRBAG MDL, AUTO OCCUPANT SEN, BCM, IGN1/IGN3, IGN MDL, and TCC SWTCH Fuses
DLC Schematics
Seat Belt Schematics
G302
Figure 2:

Impact Sensors


Object Number: 1619546  Size: FS
Master Electrical Component List
SIR System Description and Operation
Control Module References
Impact Modules and Pretensioners
Ground, Power, and Serial Data
SIR Schematic Icons
SIR Schematic Icons
SIR Schematic Icons
SIR Schematic Icons
SIR Schematic Icons
Figure 3:

Impact Modules and Pretensioners


Object Number: 1619547  Size: FS
Master Electrical Component List
SIR System Description and Operation
Control Module References
Passenger Presence System
Impact Sensors
SIR Schematic Icons
SIR Schematic Icons
SIR Schematic Icons
SIR Schematic Icons
SIR Schematic Icons
Figure 4:

Passenger Presence System


Object Number: 1619548  Size: FS
Master Electrical Component List
SIR System Description and Operation
Control Module References
Impact Modules and Pretensioners
SIR Schematic Icons
Ignition Switch-ACCY/RUN and RUN/START Bus Bars, AIRBAG MDL, AUTO OCCUPANT SEN, BCM, IGN1/IGN3, IGN MDL, and TCC SWTCH Fuses
G302