GM Service Manual Online
For 1990-2009 cars only

Steering Angle Sensor Replacement Hydraulic Power Steering

Removal Procedure

    Notice: Secure the steering wheel utilizing a strap to prevent rotation. Locking of the steering column will prevent damage and a possible malfunction of the SIR system. The steering wheel must be secured in position before disconnecting the following components:

       • The steering column
       • The intermediate shaft
       • The steering gear
    After disconnecting these components, do not move the front tires and wheels. Failure to follow these procedures may cause improper alignment of some components during installation and result in possible damage to the SIR coil.

  1. Turn the steering wheel to the straight-ahead position and secure the steering wheel.
  2. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection.
  3. Use paint in order to place match marks on the steering shaft coupling and on the lower portion of the steering column shaft.

  4. Object Number: 1768734  Size: SH
  5. Remove the upper pinch bolt.
  6. Separate the steering shaft coupling from the steering column shaft.

  7. Object Number: 1768909  Size: SH
  8. Disconnect the connector from the steering angle sensor.
  9. Move the steering angle sensor up the steering column shaft toward the steering wheel.

  10. Object Number: 1768913  Size: SH
  11. Remove the steering angle sensor by turning the sensor out of the retaining bracket slot and sliding the sensor down the steering column shaft.

Installation Procedure


    Object Number: 1768910  Size: SH
  1. Slide the steering angle sensor up the steering column shaft until the sensor is on the retaining bracket slot.
  2. Install the steering angle sensor into the groove of the retaining bracket.
  3. Connect the connector to the steering angle sensor.

  4. Object Number: 1768734  Size: SH

    Important: Ensure the steering wheel is in the straight-ahead position.

  5. Align the match marks and carefully guide the steering shaft coupling onto steering column shaft.
  6. Notice: Refer to Fastener Notice in the Preface section.

  7. Install the pinch bolt into the steering shaft coupling.
  8. Tighten
    Tighten the bolt to 30 N·m (22 lb ft).

  9. Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection.
  10. Perform the steering angle sensor centering procedure. Refer to Steering Angle Sensor Centering.