GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2005 🢒 Colorado Pickup - 4WD 🢒 Body 🢒 Wiring Systems 🢒 Steering Wheel Inflatable Restraint Module Coil Replacement

Removal Procedure

    Caution: Refer to SIR Caution in the Preface section.


    Object Number: 1488252 Size: SH
  1. Disable the SIR system. Refer to SIR Disabling and Enabling in SIR.
  2. Remove the steering wheel from the steering column. Refer to Steering Wheel Replacement .
  3. Remove the steering column trim covers. Refer to Steering Column Trim Covers Replacement .
  4. Remove the wire harness straps (1) from the wire harness assembly (2).
  5. Disconnect the multifunction switch/SIR coil assembly connector from the base of the column.
  6. Remove the multifunction switch/SIR coil assembly lead from the wire harness assembly.

    7. Object Number: 1488282 Size: SH
  7. Remove the 3 pan head tapping screws (1) from the multifunction switch/SIR coil assembly (2).
  8. Slide the multifunction switch/SIR coil assembly off of the steering column. Discard the multifunction switch/SIR coil assembly if replacing.

Installation Procedure

    Important: A new multifunction switch/SIR coil assembly will come pre-centered with a centering tab attached. Do NOT remove the centering tab until installation is complete. Failure to follow procedure will cause a misalignment to the SIR coil and centering will be required.

    If reusing the existing multifunction switch/SIR coil assembly, you must centering the SIR coil. Refer to Inflatable Restraint Steering Wheel Module Coil Centering .


    Object Number: 1488282 Size: SH
  1. Slide the multifunction switch/SIR coil assembly (2) onto the steering column.

    2. Notice: Refer to Fastener Notice in the Preface section.

  2. Screw the 3 pan head tapping screws (1) into the multifunction switch/SIR coil assembly (2).

    3. Tighten
    Tighten the screws (1) to 3 N·m (30 lb in).

  3. Route the wire harness assembly down the steering column.

    4. Object Number: 1488252 Size: SH
  4. Connect the multifunction switch/SIR coil assembly connector at the base of the column.
  5. Install the wire harness straps to the wire harness assembly.
  6. Remove the centering tab from the multifunction switch/SIR coil assembly.
  7. Install the steering column trim covers. Refer to Steering Column Trim Covers Replacement
  8. Install the steering wheel to the steering column. Refer to Steering Wheel Replacement .
  9. Enable the SIR system. Refer to SIR Disabling and Enabling in SIR.