GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

Important: After installation, calibrate the new electronic brake control module (EBCM) to the tire size that is appropriate to the vehicle.


    Object Number: 777346  Size: SH
  1. Raise the vehicle. Lifting and Jacking the Vehicle in General Information.
  2. Remove 2 electrical connectors on the side of the EBCM.

  3. Object Number: 778100  Size: SH
  4. Using a long flat-bladed screwdriver, release the lock tab on the electrical connector located on the back of the EBCM.

  5. Object Number: 778153  Size: SH

    Important: When performing the following service procedure, make sure that the TORX® screw heads are clean for the proper installation of the T 25-TORX® bit. If the 25-TORX® screw are damaged or can not be removed, replace both the EBCM and the brake pressure modulator valve (BPMV).

  6. Using a T 25-TORX® bit, remove the 4 mounting screws.
  7. Important: Removal may require a light amount of force. DO NOT pry on the EBCM or the BPMV.

  8. Remove the EBCM from the BPMV.

Installation Procedure

Important: Do not reuse the old mounting screws. Always install new mounting screws with the new EBCM.


    Object Number: 778153  Size: SH

    Important: Do not use RTV or any other type of sealant on the EBCM gasket or mating surfaces.

  1. Install EBCM on to the BPMV.
  2. Notice: Refer to Component Fastener Tightening Notice in the Preface section.

  3. Install the 4 new T-25 TORX® screws  in the EBCM.
  4. Tighten
    Tighten the 4  T-25 TORX® screws to 5 N·m (39 lb in) in an X-pattern.


    Object Number: 777346  Size: SH
  5. Install the 2 electrical connectors on the side of the EBCM.

  6. Object Number: 778100  Size: SH
  7. Install the electrical connector on the back of the EBCM.
  8. Lower the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  9. Revise the tire calibration using the Scan Tool Tire Size Calibration function.