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

Inflatable Restraint Sensing and Diagnostic Module (SDM) Power and Ground


Object Number: 1424576  Size: FS
Master Electrical Component List
SIR System Description and Operation
Control Module References
Inflatable Restraint Steering Wheel Module, T/P Module, Front Discriminating Sensors, Seat Belt Pretensioners
SIR Schematic Icons
Air Pump, ETCS, Head, ALTS, EF1 Hazard EF2 Fuses
Air Pump, ETCS, Head, ALTS, EF1 Hazard EF2 Fuses
Air Pump, ETCS, Head, ALTS, EF1 Hazard EF2 Fuses
1 of 3
Fuel Injectors
Charge, Air Bag, Malfunction, O/D Off, Cruise Indicators
G100, G101, G102
G100, G101, G102
G100, G101, G102
VCIM Power and Ground, Inside Rearview Mirror
Figure 2:

Inflatable Restraint Steering Wheel Module, I/P Module, Front Discriminating Sensors, Seat Belt Pretensioners


Object Number: 1424579  Size: FS
Master Electrical Component List
SIR System Description and Operation
Control Module References
Inflatable Restraint Side Impact Modules, Roof Rail Modules, Side Impact Sensors
Inflatable Restraint Sensing and Diagnostic Module (SDM) Power and Ground
SIR Schematic Icons
Figure 3:

Inflatable Restraint Side Impact Modules, Roof Rail Modules, Side Impact Sensors


Object Number: 1424581  Size: FS
Master Electrical Component List
SIR System Description and Operation
Control Module References
Front Passenger Presence System (PPS) Module, Seat Belt Switches, Passenger Seat Belt Warning Lamp
Inflatable Restraint Steering Wheel Module, T/P Module, Front Discriminating Sensors, Seat Belt Pretensioners
SIR Schematic Icons
Figure 4:

Front Passenger Presence System (PPS) Module, Seat Belt Switches, Passenger Seat Belt Warning Lamp


Object Number: 1424584  Size: FS
Master Electrical Component List
SIR System Description and Operation
Control Module References
Passenger Seat Position Sensors
Inflatable Restraint Side Impact Modules, Roof Rail Modules, Side Impact Sensors
SIR Schematic Icons
Air Pump, ETCS, Head, ALTS, EF1 Hazard EF2 Fuses
Air Pump, ETCS, Head, ALTS, EF1 Hazard EF2 Fuses
Air Pump, ETCS, Head, ALTS, EF1 Hazard EF2 Fuses
Air Pump, ETCS, Head, ALTS, EF1 Hazard EF2 Fuses
Air Pump, ETCS, Head, ALTS, EF1 Hazard EF2 Fuses
1 of 3
Fuel Injectors
Tail Relay, Turn Signal/Headlamp Switch
G100, G101, G102
G100, G101, G102
Figure 5:

Passenger Presence System Sensors


Object Number: 1480340  Size: FS
Master Electrical Component List
SIR System Description and Operation
Control Module References
Front Passenger Presence System (PPS) Module, Seat Belt Switches, Passenger Seat Belt Warning Lamp
SIR Schematic Icons