GM Service Manual Online
For 1990-2009 cars only

Steering Wheel Inflator Module Replacement With RPO CTF

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 the SIR System in SIR.
  2. Turn the ignition switch to the ON position to unlock the steering wheel.

  3. Object Number: 309830  Size: SH
  4. Turn the steering wheel 90 degrees clockwise in order to access the rear shroud hole to the steering wheel inflator module.
  5. Insert a screwdriver and push the leaf spring in order to release the pin.
  6. Turn the steering wheel 180 degrees counterclockwise in order to access to the remaining rear shroud hole.
  7. Insert a screwdriver and push the leaf spring in order to release the pin.

  8. Object Number: 334741  Size: SH
  9. Remove the steering wheel inflator module by tilting the module rearward from the top in order to access the SIR wiring.

  10. Object Number: 334744  Size: SH
  11. Disconnect the SIR lead wire from the clip on the inflator module.

  12. Object Number: 245795  Size: SH
  13. Remove the connector position assurance (CPA) and the retainer form the steering wheel inflator module.
  14. 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.

  15. Remove the steering wheel inflator module

Installation Procedure


    Object Number: 245795  Size: SH

    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.

  1. Install the supplemental inflatable restraint (SIR) connector position assurance (CPA) and the retainer to the steering wheel inflator module.

  2. Object Number: 334741  Size: SH
  3. Connect the SIR lead wire to the clip on the steering wheel.
  4. Install the steering wheel inflator module by pressing the inflator module firmly into the steering wheel. Press on the module until the notched pins in the leaf spring are securely latched. Do not pinch the wires.
  5. Enable the SIR system. Refer to Enabling the SIR System in SIR.

Steering Wheel Inflator Module Replacement Without RPO CTF

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 the SIR System in SIR.
  2. Turn the ignition switch to the ON position to unlock the steering wheel.

  3. Object Number: 309830  Size: SH
  4. Turn the steering wheel 90 degrees so the side of the SIR module is at the 12 o'clock position in order to gain access to the access holes behind the steering wheel.

  5. Object Number: 475671  Size: MH
  6. Insert a screwdriver into each access hole and push the leaf spring in order to release the notched pin that retains the inflator module.

  7. Object Number: 288763  Size: SH
  8. Turn the steering wheel 180 degrees in order to gain access to the remaining access holes.
  9. Insert a screwdriver into the remaining holes and push the leaf spring in order to release the notched pin that retains the inflator module.
  10. Tilt the top of the inflator module rearward to gain access to the SIR wiring.
  11. Disconnect the SIR lead wire from the clip on the inflator module.
  12. Disconnect the SIR lead wire from the clip on the steering wheel.
  13. Disconnect the connector position assurance (CPA) retainer.
  14. Disconnect the electrical connector.
  15. 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.

  16. Remove the inflator module from the vehicle.

Installation Procedure

    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.

  1. Connect the SIR electrical connector.
  2. Connect the CPA retainer to the SIR connector.
  3. Connect the SIR lead wire to the clip on the steering wheel.
  4. Connect the SIR lead wire to the clip on the inflator module.
  5. Important: Ensure that the wiring is not exposed or trapped between the inflatable restraint steering wheel module and the steering wheel.

  6. Press the inflator module into the steering wheel firmly enough that the module engages and latches the notched pins in the leaf springs.
  7. Rotate the steering wheel back into the straight position.
  8. Enable the SIR system. Refer to Enabling the SIR System in SIR.