GM Service Manual Online
For 1990-2009 cars only

Caution: Refer to Brake Dust Caution in the Preface section.

Important: If replacing the wheel speed sensor due to a DTC, inspect the back of the wheel bearing on the encoder surface for metallic chips or metal shavings. If metallic debris is found, clean the encoder surface to prevent interference with the wheel speed sensor signal and setting of a DTC. Refer to Diagnostic System Check - Vehicle to verify and clear the DTC.

Removal Procedure


    Object Number: 1861964  Size: SH
  1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
  2. Remove the tire and wheel assembly. Refer to Tire and Wheel Removal and Installation .
  3. Disconnect the wheel speed sensor electrical connector (1).
  4. Release the wheel speed sensor wire harness grommet (2) from the lower control arm bracket.
  5. Release the wheel speed sensor wire harness routing clips (3) from the upper suspension link.

  6. Object Number: 1861966  Size: SH
  7. Release the wheel speed sensor wire harness routing clips from the upper suspension link.
  8. Important: Clean the wheel speed sensor mounting area on the wheel knuckle of any accumulated dirt and debris.


    Object Number: 1861969  Size: SH
  9. Remove the wheel speed sensor bolt.
  10. Pull the wheel speed sensor straight up and out of the wheel knuckle.

Installation Procedure


    Object Number: 1861969  Size: SH
  1. Install the wheel speed sensor to the wheel knuckle.
  2. Notice: Refer to Fastener Notice in the Preface section.

  3. Install the wheel speed sensor bolt.
  4. Tighten
    Tighten the bolt to 9 N·m (80 lb in).


    Object Number: 1861966  Size: SH
  5. Install the wheel speed sensor wire harness routing clips to the upper suspension link.

  6. Object Number: 1861964  Size: SH
  7. Install the wheel speed sensor wire harness routing clips (3) to the upper suspension link.
  8. Install the wheel speed sensor wire harness grommet (2) to the lower control arm bracket.
  9. Connect the wheel speed sensor electrical connector (1).
  10. Install the tire and wheel assembly. Refer to Tire and Wheel Removal and Installation .
  11. Perform the Diagnostic System Check - Vehicle .