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Home › Chevrolet › 1999 › Astro Van Cargo, AWD › Repair and Diagnosis › Steering › Steering Column › Steering Column - Tilt › Repair Instructions › Steering Wheel Inflator Module Replacement › Removal Procedure

Removal Procedure

CAUTION:

When performing service on or around the SIR components or the SIR wiring, follow the procedures listed below in order to temporarily disable the SIR system. Failure to follow the procedures could result in the following:

  • Air bag deployment
  • Personal injury
  • Otherwise unneeded SIR system repairs
  1. Disable the SIR system. Refer to DISABLING SYSTEM in SIR.
  2. Turn the ignition switch to the ON position to unlock the steering wheel.
    3. Fig 1: Expanded View Of Inflator Module Notched Retaining Pin
    GM245788Courtesy of GENERAL MOTORS CORP.
  3. Turn the steering wheel 90 degrees clockwise in order to access the rear shroud hole to the steering wheel inflator module.
  4. Insert a screwdriver and push the leaf spring in order to release the pin.
    5. Fig 2: Illustrating Using Flat-Bladed Tool To Release Notched Retaining Pins
    GM288763Courtesy of GENERAL MOTORS CORP.
  5. Turn the steering wheel 180 degrees counterclockwise in order to access to the remaining rear shroud hole.
  6. Insert a screwdriver into the remaining holes and push the leaf spring in order to release the notched pin that retains the inflator module.
    7. Fig 3: Steering Wheel Inflator Module
    GM334741Courtesy of GENERAL MOTORS CORP.
  7. Tilt the top of the inflator module rearward to gain access to the SIR wiring.
    8. Fig 4: SIR Lead Wire
    GM334744Courtesy of GENERAL MOTORS CORP.
  8. Disconnect the SIR lead wire from the clip on the inflator module.
  9. Disconnect the SIR lead wire from the clip on the steering wheel.
    10. Fig 5: Identifying Connector Position Assurance (CPA) Retainer
    GM245795Courtesy of GENERAL MOTORS CORP.
  10. Disconnect the connector position assurance (CPA) retainer.
  11. Disconnect the electrical connector.
    CAUTION:

    When you are carrying an undeployed inflator module:

    • Do not carry the inflator module by the wires or connector on the inflator module
    • Make sure the bag opening points away from you

    When you are storing an undeployed inflator module, make sure the bag opening points away from the surface on which the inflator module rests. When you are storing a steering column, do not rest the column with the bag opening facing down and the column vertical. Provide free space for the air bag to expand in case of an accidental deployment. Otherwise, personal injury may result.

  12. Remove the inflator module from the vehicle.
  13. Fully deploy the module before disposal. If the module was replaced under warranty, fully deploy and dispose of the module after the required retention period.
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