SIR Component Views

WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Below Driver Seat - SIR Wiring

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Inflatable Restraint Sensing and Diagnostic Module (SDM) Connector
2	Power Seat Electrical Connector
3	Inflatable Restraint Sensing and Diagnostic Module (SDM)
4	Instrument Panel Harness

Fig 2: Center of the I/P - Accessory Switches (C99)

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Inflatable Restraint IP Module Disable Switch Connector (Except Crewcab)
2	Accessory Switch Housing
3	Inflatable Restraint IP Module Disable Switch (Except Crewcab)
4	Instrument Panel

Fig 3: Passenger Presence Components - Under Front Passenger Seat

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Seat Horizontal Motor - Front Passenger (AN3)
2	Inflatable Restraint Passenger Presence System (PPS) Module (AL0)
3	Inflatable Restraint Passenger Presence System (PPS) Sensor (AL0)
4	Seat Front Vertical Motor - Front Passenger (AN3)
5	Seat Rear Vertical Motor - Front Passenger (AN3)
6	C399
7	Inflatable Restraint Seat Position Sensor - Right
8	Seat Recliner Motor - Front Passenger (AN3)

Fig 4: Passenger Presence Components - Side of Front Passenger Seat

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Seat Back Cushion
2	Seat Adjuster Switch - Front Passenger (AN3)
3	Inflatable Restraint Passenger Seat Belt Tension Retractor Sensor Connector (AL0)

Fig 5: Front End Sensors Component Views

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Radiator Support
1	Radiator Support
2	Inflatable Restraint Front End Sensor (HVY), Left and Right Sensors Similiar (w/o HVY)

Fig 6: Right Side of the I/P - SIR Components

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Inflatable Restraint IP Module
2	Inflatable Restraint IP Module Connector at Module
3	Instrument Panel Compartment Lamp
4	Instrument Panel Compartment Lamp Connector
5	Inflatable Restraint IP Module Connector with Tether

Fig 7: Right Side Impact Sensor (HP2)

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Inflatable Restraint Side Impact Sensor - (SIS) Right
2	Passenger Side Door

Fig 8: Steering Wheel

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Inflatable Restraint Steering Wheel Module
2	Inflatable Restraint Steering Wheel Module Connector with Tether
2	Inflatable Restraint Steering Wheel Module Connector with Tether
3	Inflatable Restraint Steering Wheel Module Harness
3	Inflatable Restraint Steering Wheel Module Harness