GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

    Caution: Refer to SIR Caution in the Preface section.

    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 system. Refer to SIR Disabling and Enabling .
  2. Open the hood and support with prop rod.
  3. Remove the engine splash shield. Refer to Engine Splash Shield Replacement in Body Front End.
  4. Remove the radiator support and air cleaner assembly. Refer to the following procedures:
  5. •  Radiator Support Replacement in Engine Cooling
    •  Air Cleaner Assembly Replacement in Engine Controls
  6. Carefully push the air conditioner condenser and radiator rearward and insert a wedge.

  7. Object Number: 1343527  Size: SH
  8. Remove the tow integral fasteners retaining the front discriminating sensors.
  9. Remove the front sensor from the vehicle.

  10. Object Number: 1343525  Size: SH
  11. Disconnect the electrical connection position assurance (1).
  12. Disconnect the electrical connection from the front sensor.

Installation Procedure

  1. Remove any dirt, grease, or other impurities from the mounting surface.
  2. Connect the electrical connection to the front sensor.

  3. Object Number: 1343525  Size: SH
  4. Connect the electrical connection position assurance (1).
  5. Notice: Refer to Fastener Notice in the Preface section.


    Object Number: 1343527  Size: SH
  6. Install the 2 bolts (1) retaining the front sensor.
  7. Tighten
    Tighten the bolts to 8.0 N·m (71 lb in).

  8. Carefully remove the wedge that was holding the air conditioning condenser and the radiator.
  9. Install the radiator support and air cleaner assembly. Refer to the following procedures:
  10. •  Radiator Support Replacement in Engine Cooling
    •  Air Cleaner Assembly Replacement in Engine Controls
  11. Install the engine splash shield. Refer to Engine Splash Shield Replacement in Body Front End.
  12. Close the hood.
  13. Enable the SIR system. Refer to SIR Disabling and Enabling .