GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 819428  Size: SH
  1. Disable the SIR system. Refer to SIR Disabling and Enabling .
  2. Remove the front end discriminating sensor - left electrical connector (3).
  3. Remove the front end discriminating sensor - left fasteners (2).
  4. Remove the front end discriminating sensor (1).

Installation Procedure


    Object Number: 819428  Size: SH
  1. Install the front end discriminating sensor (1).
  2. Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

  3. Install the front end discriminating sensor - left fasteners (2).
  4. Tighten
    Tighten the fasteners to 8 N·m (71 lb in).

  5. Install the front end discriminating sensor - left electrical connector (3).
  6. Enable the SIR system. Refer to SIR Disabling and Enabling .