GM Service Manual Online
For 1990-2009 cars only

Removal 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.


    Object Number: 591336  Size: SH
  1. Turn OFF the ignition.
  2. Disable the SIR system. Refer to Disabling the SIR System .
  3. Remove the steering wheel inflator module (3). Refer to Inflatable Restraint Steering Wheel Module Replacement .
  4. Remove the steering wheel retaining nut (2).
  5. Remove the steering wheel (1) from the steering column shaft. Refer to Steering Wheel Replacement in Steering Wheel and Column.

  6. Object Number: 343706  Size: SH

    Important: The column must be in the 12 o'clock position.

    To align the steering shaft assembly to the 12 o'clock position. Turn the key to the off/lock position. Pull the key out and turn the steering shaft until you hear a click.

  7. The turn signal switch assembly must be in the "UP" position.
  8. Refer to Inflatable Restraint Steering Wheel Module Coil Disassemble - Off Vehicle in Steering Wheel and Column.
  9. Remove the SIR connector (1) from the fused jumper assembly connector (2).
  10. Check steering column for accident damage. Refer to Steering Column Accident Damage Inspection - Off Vehicle in Steering Wheel and Column -- Tilt.

  11. Object Number: 343702  Size: SH
  12. Remove the retaining ring.

  13. Object Number: 343717  Size: SH
  14. Remove the wire protector.
  15. Remove the SIR coil assembly.

Installation Procedure


    Object Number: 293254  Size: SH
  1. To install the inflatable restraint steering wheel module coil:
  2. • Make sure that the wheels are straight ahead.
    • Align the block tooth and the centering mark on the race and upper shaft assembly (1) at the 12 o'clock position.

    Object Number: 396373  Size: SH
  3. The new SIR coil assembly will come pre-centered.
  4. If installing the existing SIR coil assembly, proceed to the next step.
  5. Follow the instructions on the notice (1) of the SIR coil assembly. Also refer to Inflatable Restraint Coil Centering - Off Vehicle in Steering Wheel and Column.

  6. Object Number: 343717  Size: SH

    Important: The column must be in the 12 o'clock position.

  7. Align the steering column to the 12 o'clock position.
  8. Install the hanging SIR coil assembly onto the race and upper shaft assembly.
  9. The new SIR coil assembly will come precentered. Once installed, pull the tab and remove.
  10. Install the wire protector into the support bracket.

  11. Object Number: 343702  Size: SH
  12. Install the retaining ring.

  13. Object Number: 343706  Size: SH
  14. Install the SIR coil assembly connector (1) to the fused jumper assembly connector (2).
  15. Refer to Inflatable Restraint Steering Wheel Module Coil Assemble - Off Vehicle in Steering Wheel and Column.

  16. Object Number: 591336  Size: SH
  17. Install the steering wheel (1).
  18. 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.

  19. Install steering wheel nut (2) on to steering column shaft.
  20. Tighten
    Tighten steering wheel nut to 41 N·m (30 lb ft).

  21. Install the steering wheel inflator module (3). Refer to Inflatable Restraint Steering Wheel Module Replacement .
  22. Enable the SIR system. Refer to Enabling the SIR System .