GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2003 🢒 Blazer - 4WD - RHD 🢒 Preface 🢒 Cautions and Notices 🢒 Turn Signal Cancel Cam and Upper Bearing Thrust Washer

Tools Required

    • J 23653-SIR Steering Column Lock Plate Compressor
    • J 42137 Steering Column Lock Plate Compressor Adapter

Removal Procedure

    Caution: Refer to SIR Caution in the Preface section.


    Object Number: 338052 Size: SH
  1. Disable the SIR system. Refer to SIR Disabling and Enabling in SIR.

    2. Important: Let the SIR coil hang freely after removal.

  2. Remove the SIR coil. Refer to Inflatable Restraint Steering Wheel Module Coil Replacement in SIR.
  3. Remove the bearing retainer using J 23653-SIR and J 42137 .
  4. Remove J 23653-SIR and J 42137 .
  5. Discard the bearing retainer.

    6. Object Number: 664282 Size: SH
  6. Remove the following parts from the steering shaft assembly:
    7. 6.1. The cam orientation plate (4)
    6.2. The turn signal cancel cam assembly (3)
    6.3. The upper bearing spring (2)
    6.4. The thrust washer (1)

Installation Procedure

    Object Number: 664283 Size: SH
  1. Install the following parts onto the steering shaft assembly:
    2. 1.1. The thrust washer (1).
    1.2. The upper bearing spring (2).
  2. Lubricate the turn signal cancel cam assembly (3) with GM P/N 12377900 (Canadian P/N 10953529).
  3. Install the turn signal cancel cam assembly (3) onto the steering shaft assembly.
  4. Install the cam orientation plate (4) onto the steering shaft assembly.

    5. Object Number: 338052 Size: SH
  5. Install the new bearing retainer onto the steering shaft assembly.
  6. Compress the cam orientation plate using J 23653-SIR and J 42137 .
  7. Firmly seat the bearing retainer into the groove on the steering shaft assembly.
  8. Remove J 23653-SIR .
  9. Install the SIR coil. Refer to Inflatable Restraint Steering Wheel Module Coil Replacement in SIR.
  10. Enable the SIR system. Refer to SIR Disabling and Enabling in SIR.