GM Service Manual Online
For 1990-2009 cars only

Turn Signal Multifunction Switch Replacement LHD

Removal Procedure

    Caution: Refer to SIR Caution in the Preface section.


    Object Number: 301912  Size: SH
  1. Disable the SIR system. Refer to SIR Disabling and Enabling in SIR.
  2. Remove the steering column trim covers. Refer to Steering Column Trim Covers Replacement .
  3. Remove the steering column wire harness tie straps (1, 2).

  4. Object Number: 312291  Size: SH
  5. Disconnect the electrical connectors from the steering column control module (2).

  6. Object Number: 301919  Size: SH

    Important: Note the direction that the wiring harness is routed in the shield for re-installation.

  7. Open the wire harness shield (1) on the lower steering column and remove the wire harness (2).

  8. Object Number: 293230  Size: SH
  9. Disconnect the multifunction switch electrical connectors (1,2,3).

  10. Object Number: 293235  Size: SH
  11. Remove the multifunction switch retaining screws.

  12. Object Number: 293237  Size: SH
  13. Remove the multifunction switch (1).

Installation Procedure


    Object Number: 293237  Size: SH

    Important: The electrical contact must rest on the turn signal cancel cam assembly.

  1. Install the multifunction switch (1).
  2. Notice: Refer to Fastener Notice in the Preface section.


    Object Number: 293235  Size: SH
  3. Install the multifunction switch retaining screws .
  4. Tighten
    Tighten the screws to 7 N·m (62 lb in).


    Object Number: 293230  Size: SH
  5. Connect the multifunction switch electrical connectors (1,2,3).

  6. Object Number: 301919  Size: SH
  7. Install the wire harness (2) to the wire harness shield (1) on the lower steering column.

  8. Object Number: 312291  Size: SH
  9. Connect the control module electrical connectors (2).

  10. Object Number: 301912  Size: SH
  11. Install the steering column wire harness tie straps.
  12. Install the steering column trim covers. Refer to Steering Column Trim Covers Replacement .
  13. Enable the SIR system. Refer to SIR Disabling and Enabling in SIR.

Turn Signal Multifunction Switch Replacement RHD

Removal Procedure

    Caution: Refer to SIR Caution in the Preface section.


    Object Number: 312291  Size: SH
  1. Disable the SIR system. Refer to SIR Disabling and Enabling in SIR.
  2. Remove the steering column. Refer to Steering Column Replacement .
  3. Remove the steering column trim covers. Refer to Steering Column Trim Covers Replacement .
  4. Remove the wire harness tie straps.
  5. Disconnect the control module electrical connectors (2).

  6. Object Number: 301919  Size: SH

    Important: Note the direction that the wiring harness is routed for re-installation.

  7. Open the wire harness shield (1) from the lower steering column and remove the wire harness (2).

  8. Object Number: 312396  Size: SH
  9. Disconnect the multifunction switch electrical connector (1,2,3).

  10. Object Number: 312416  Size: SH
  11. Remove the multifunction switch retaining screws (2).
  12. Remove the multifunction switch (1) from the steering column.

Installation Procedure


    Object Number: 312416  Size: SH
  1. Install the multifunction switch to the steering column (1).
  2. Notice: Refer to Fastener Notice in the Preface section.

  3. Install the multifunction switch retaining screws (2).
  4. Tighten
    Tighten the screws to 7 N·m (62 lb in).


    Object Number: 312396  Size: SH
  5. Connect the multifunction switch electrical connectors (1,2,3).

  6. Object Number: 301919  Size: SH
  7. Install the steering column wire harness (2) to the shield (1).

  8. Object Number: 312291  Size: SH
  9. Connect the control module electrical connectors (2).
  10. Install the wire harness tie straps.
  11. Install the steering column trim covers. Refer to Steering Column Trim Covers Replacement .
  12. Install the steering column. Refer to Steering Column Replacement .
  13. Enable the SIR system. Refer to SIR Disabling and Enabling in SIR.