GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2003 🢒 Corvette 🢒 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. Object Number: 70113 Size: SH
  2. Remove the two T30 TORX® screws (4) retaining the inflatable restraint module (3) to the steering wheel.
  3. Remove the inflatable restraint module (3) from the steering wheel.
  4. Disconnect the connector position assurance (CPA) (1) from the electrical connector (2) on the module coil.
  5. Disconnect the electrical connector (2) from the back of the steering wheel module (3).
  6. Disconnect the horn wiring harness (6) from the steering column.
  7. Disconnect the ground wire (5) from the steering column.
  8. Remove the steering wheel module (3) from the vehicle.
  9. 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: 70112 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.

  1. Install the inflatable restraint steering wheel module (3) and secure with the retaining screws (2) as shown prior to installation on the steering wheel.

    2. Tighten
    Tighten the screws to 6 N·m (54 lb in).


    Object Number: 70113 Size: SH
  2. Connect the ground wire (5) to the steering column.
  3. Connect the horn wiring harness (6) to the steering column.
  4. Connect the electrical connector (2) to the back of the steering wheel module (3).
  5. Install the CPA (1) to the electrical connector (2).
  6. Install the inflatable restraint module (3) onto the steering wheel by pushing on both sides of the module until the retaining screws snap into place.
  7. Enable the SIR system. Refer to SIR Disabling and Enabling .