GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Turn the ignition OFF.
  2. Important: Do not remove the engine control module (ECM) from the ECM bracket.

    Do not remove the ECM redundant ground wire from the ECM.

  3. Remove the ECM bracket bolts and reposition the ECM bracket in order to provide access.
  4. Important: Do not disconnect the power steering fluid lines/hoses from the reservoir.

  5. Remove the power steering fluid reservoir bolts and reposition the power steering fluid reservoir in order to provide access. Refer to Remote Power Steering Fluid Reservoir Replacement.

  6. Object Number: 1285245  Size: SH
  7. Remove the camshaft position (CMP) sensor electrical connector.

  8. Object Number: 1285251  Size: SH
  9. Remove the CMP sensor bolt.
  10. Remove the CMP sensor.

Installation Procedure


    Object Number: 1285251  Size: SH
  1. Install the CMP sensor.
  2. Notice: Refer to Fastener Notice in the Preface section.

  3. Install the CMP sensor bolt.
  4. Tighten
    Tighten the CMP sensor bolt to 10 N·m (89 lb in).


    Object Number: 1285245  Size: SH
  5. Install the CMP sensor electrical connector.
  6. Install the ECM bracket with the ECM. Refer to Engine Control Module Replacement.
  7. Install the power steering fluid reservoir. Refer to Remote Power Steering Fluid Reservoir Replacement.