GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2008 🢒 TrailBlazer - 2WD 🢒 Diagnostic Navigation 🢒 Vehicle Diagnostic Information 🢒 Steering Wheel Inflatable Restraint Module Coil Replacement

Removal Procedure

    Caution: Refer to SIR Caution in the Preface section.


    Object Number: 761444 Size: SH
  1. Disable the SIR system. Refer to SIR Disabling and Enabling .
  2. Tilt the steering column to the CENTER position.
  3. Remove the steering wheel from the column. Refer to Steering Wheel Replacement.
  4. Remove the upper and lower trim covers. Refer to Steering Column Trim Covers Replacement.
  5. If necessary, inspect the steering column for accident damage. Refer to Steering Column Accident Damage Inspection .

    6. Important: If the steering wheel has PAD control, the inflatable restraint steering wheel module coil and wire harness assembly must come off as one piece.

    If the steering wheel does not have PAD control, the inflatable restraint steering wheel module coil will come off by itself.

  6. Remove the wire harness strap.
  7. If the steering wheel has PAD control, remove the wire harness assembly. Refer to Steering Column Wiring Harness Replacement.

    8. Object Number: 761436 Size: SH
  8. Remove the retaining ring (1) using snap ring pliers.
  9. Remove the steering wheel module coil (2).
  10. If necessary, remove the wave washer (3).

Installation Procedure

    Object Number: 419666 Size: SH
  1. If necessary, install the wave washer (1).

    2. Object Number: 293254 Size: SH
  2. Align the block tooth on the steering shaft assembly (1) to the 12 o'clock position.

    3. Object Number: 324859 Size: SH

    Important: A new inflatable restraint steering wheel module coil is pre-centered. Do not remove the centering tab from the new inflatable restraint steering wheel module coil until installation is complete.

  3. If installing the existing inflatable restraint steering wheel module coil, the coil must be centered first. Refer to Inflatable Restraint Steering Wheel Module Coil Centering .
  4. Align the inflatable restraint steering wheel module coil (2) with the horn tower sticking through the shaft lock or cam orientation plate (1).
  5. Slide the steering wheel module coil (2) onto the steering shaft assembly.
  6. Remove and discard the centering tab from the coil.

    7. Object Number: 419671 Size: SH

    Important: The retaining ring (1) must seat securely on the groove of the race and upper shaft assembly (2).

  7. Install the retaining ring (1) using snap ring pliers.

    8. Object Number: 761444 Size: SH

    Caution: Improper routing of the wire harness assembly may damage the inflatable restraint steering wheel module coil. This may result in a malfunction of the coil, which may cause personal injury.

  8. If the steering wheel has PAD control, install the wire harness assembly. Refer to Steering Column Wiring Harness Replacement .
  9. Install the wire harness strap.
  10. Install the upper and lower trim covers. Refer to Steering Column Trim Covers Replacement .
  11. Install the steering wheel to the column. Refer to Steering Wheel Replacement.
  12. Enable the SIR system. Refer to SIR Disabling and Enabling .