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Home >> Chevrolet >> 2004 >> S10 Pickup >> Repair and Diagnosis >> External Pages >> Different car >> Section 25 (Supplemental Inflatable Restraint System) >> Repair Instructions >> Inflatable Restraint Front End Discriminating Sensor Replacement >> Installation Procedure
July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

Installation Procedure

WARNING: This page is about a different car, the 2004 GMC Safari and 2004 Chevrolet Astro. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove any dirt, grease, or other impurities from the mounting surface.
  2. Install the front end discriminating sensor horizontally to the top of the frame.
  3. Point the arrow on the sensor toward the front of the vehicle.
    NOTE: Refer to Fastener Notice in Cautions and Notices.
  4. Install the inflatable restraint front end discriminating sensor mounting fasteners (2).

    Tighten:  Tighten fastener to 6.5 N.m (58 lb in).

    Fig 1: View Of Inflatable Restraint Front End Discriminating Sensor Connector & CPA
    GM189098Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: The following procedures should be utilized in the event that sensor mounting holes or fasteners are damaged to the extent that the sensor may no longer be properly mounted.
  5. Perform the following steps in order to complete the first fastener repair:
    1. Remove and discard the improperly installed rivet.
    2. Reattach the sensor with a new rivet.
  6. Perform the following steps, if needed, in order to complete a second fastener repair:
    1. Remove the improperly installed rivet.
    2. Enlarge the mounting holes in the lower radiator support to 9.0 mm (0.35 in).
    3. Insert and properly seat the rivnut.
    4. Install the screw to the sensor.

      Tighten:  Tighten fasteners to 6.5 N.m (58 lb in).

  7. Connect the inflatable restraint front end discriminating sensor harness connector to the sensor.
  8. Lower the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  9. Enable the SIR system. Refer to SIR Disabling and Enabling Zone 1 .