GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Oldsmobile 🢒 2003 🢒 Alero 🢒 Restraints 🢒 SIR 🢒 Steering Wheel Inflatable Restraint Module Replacement

Removal Procedure

    Caution: Refer to SIR Caution in the Preface section.

    Caution: Refer to SIR Inflator Module Handling and Storage Caution in the Preface section.

  1. Disable the SIR system. Refer to SIR Disabling and Enabling .
  2. Remove the steering column trim covers. Refer to Steering Column Trim Covers Replacement in Steering Wheel and Column.
  3. Rotate the steering wheel ½ turn in order to access the screws to the steering wheel inflator module at the back of the steering wheel.
  4. Use a T30 TORX® in order to remove the inflator module screws.
  5. Gently pull the inflator module from the steering wheel.

    6. Object Number: 778756 Size: SH
  6. Remove the connector position assurance (CPA) from the yellow SIR electrical connector.
  7. Disconnect the yellow SIR electrical connector from the steering wheel inflator module.

    8. Object Number: 778760 Size: SH
  8. Disconnect the horn ground lead from the steering wheel.

    9. Object Number: 778764 Size: SH
  9. Rotate the horn contact lead (2) counterclockwise ¼ turn in order to remove the horn contact lead from the steering column shaft tower.
  10. Remove the steering wheel inflator module.
  11. 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. Refer to Inflator Module Handling and Scrapping .

Installation Procedure

    Object Number: 778764 Size: SH

    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.

    Important: Do not install the steering wheel inflator module to the steering wheel at this time.

  1. Use a T30 TORX® in order to install the screws to the steering wheel inflator module.

    2. Tighten
    Tighten the screws to 10 N·m (89 lb in).

  2. Rotate the steering wheel ½ turn in order to center the steering wheel.
  3. Position the steering wheel inflator module to the steering wheel.
  4. Rotate the horn contact lead (2) clockwise ¼ turn in order to install the horn contact lead to the steering column shaft tower.

    5. Object Number: 778760 Size: SH
  5. Connect the horn ground lead to the steering wheel.

    6. Object Number: 778756 Size: SH
  6. Connect the yellow SIR electrical connector to the steering wheel inflator module.
  7. Install the CPA to the yellow SIR electrical connector.

    8. Important: Route the wiring harnesses correctly.

  8. Align the inflator module screws with the openings on the steering wheel.
  9. Install the inflator module to the steering wheel by firmly pressing into place until fully seated.
  10. Install the steering column trim covers. Refer to Steering Column Trim Covers Replacement in Steering Wheel and Column.
  11. Enable the SIR system. Refer to SIR Disabling and Enabling .