Express 1500 AWD V8-5.3L (2008)
Impact Sensor: Service and Repair
Inflatable Restraint Front End Sensor Replacement
Inflatable Restraint Front End Sensor Replacement
Removal Procedure
Caution: Do not strike or jolt the inflatable restraint front end sensor. Before applying power to the front end sensor make sure that it is
securely fastened. Failure to observe the correct installation procedure could cause SIR deployment, personal injury, or unnecessary SIR
system repairs.
1. Disable the SIR. Refer to SIR Disabling and Enabling.
2. Raise the vehicle and support. Refer to Vehicle Lifting.
3. Remove the connector position assurance (CPA) from the inflatable restraint front end discriminating sensor electrical connector.
4. Disconnect the inflatable restraint front end sensor electrical connector.
Important: The fastener has a left hand thread.
5. Loosen the inflatable restraint front end sensor mounting nut (1).
6. Slide the inflatable restraint front end sensor (1) towards the front of the vehicle.
7. Remove the sensor (1) from the keyhole slot in the lower radiator support (2).
Installation Procedure
1. Remove any dirt, grease, or other impurities from the mounting surface.
2. Point the arrow on the sensor toward the front of the vehicle.
3. Install the inflatable restraint front end sensor (1) into the keyhole slot in lower radiator support (2).
