GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Cadillac 🢒 2009 🢒 SLS 🢒 Safety and Security 🢒 Supplemental Inflatable Restraints 🢒 Inflatable Restraint Front End Sensor Replacement

Removal Procedure

    Warning: Refer to SIR Warning in the Preface section.

    Warning: 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. Remove the radiator sight shield.
  3. Release the radiator to re-position it so as to access the sensor.

    4. Object Number: 1452885 Size: SH
  4. Remove the connector position assurance (CPA) from the wiring harness connector to the inflatable restraint front end sensor.
  5. Disconnect the wiring harness connector from the front end sensor.

    6. Note: The front end sensor mounting fastener has left-handed threads.

  6. Loosen the front end sensor mounting fastener, which is located in the upper tie bar.
  7. Remove the front end sensor from the upper tie bar.

Installation Procedure

    Object Number: 1452885 Size: SH
  1. Remove any dirt, grease, or other impurities from the mounting surface.
  2. Position the sensor horizontally on the mounting surface.
  3. Point the arrow on the sensor toward the front of the vehicle.

    4. Caution: Refer to Fastener Caution in the Preface section.

  4. Install the mounting fasteners.

    5. Tighten
    Tighten the fastener to 9 N·m (80 lb in).

  5. Connect the harness wiring connector to the front end sensor.
  6. Install the CPA to the wiring harness connector on the front end sensor.
  7. Reposition the radiator.
  8. Install the radiator sight shield.
  9. Enable the SIR system. Refer to SIR Disabling and Enabling.