GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2003 🢒 GMC K Sierra - 4WD 🢒 Restraints 🢒 SIR 🢒 SIR Component Views
Figure 1:

Below Driver Seat -- SIR Wiring
Object Number: 310047 Size: MF
(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
Figure 2:

Center of the I/P -- Accessory Switches (C99)
Object Number: 310150 Size: MF
(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
Figure 3:

Passenger Presence Components - Under Front Passenger Seat
Object Number: 899961 Size: MF
(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)
Figure 4:

Passenger Presence Components - Side of Front Passenger Seat
Object Number: 899962 Size: MF
(1)Seat Back Cushion
(2)Seat Adjuster Switch - Front Passenger (AN3)
(3)Inflatable Restraint Passenger Seat Belt Tension Retractor Sensor Connector (AL0)
Figure 5:

Radiator Support -- SIR Components
Object Number: 349802 Size: LF
(1)Radiator Support
(1)Radiator Support
(2)Inflatable Restraint Front End Discriminating Sensor
Figure 6:

Right Side of the I/P -- SIR Components
Object Number: 310155 Size: MF
(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
Figure 7:

Steering Wheel
Object Number: 349778 Size: LF
(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