GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

    Caution: To prevent equipment damage, never connect or disconnect the wiring harness connection from the EBCM with the ignition switch in the ON position.

  1. Turn OFF the ignition.
  2. Raise and support vehicle. Refer to Lifting and Jacking the Vehicle.
  3. Remove the air deflector shield. Refer to Front Air Deflector Replacement.
  4. Remove the right front wheelhouse liner. Refer to Wheelhouse Panel Replacement - Right Side.
  5. Note: It is not necessary to remove the washer solvent container from the vehicle.

  6. Remove the washer solvent container bracket. Refer to Windshield Washer Solvent Container Replacement.
  7. Note: The area around the electronic brake control module (EBCM) must be free from loose dirt to prevent contamination of dissembled ABS components.

  8. Thoroughly clean all of the contaminants from and around the EBCM assembly.
  9. Caution: To prevent equipment damage, never connect or disconnect the wiring harness connection from the EBCM with the ignition switch in the ON position.

  10. Press the retainer on the EBCM electrical connector  (1).

  11. Object Number: 899234  Size: SH
  12. Rotate the EBCM connector tab (2) forward to the unlocked position.
  13. Disconnect the EBCM electrical connector (1) from the EBCM and position out of the way.

  14. Object Number: 782380  Size: SH
  15. Remove the 4 EBCM to brake pressure modulator valve (BPMV) screws (1).

  16. Object Number: 772017  Size: SH
  17. Clean the surface of the EBCM/BPMV assembly.
  18. Note: The EBCM cannot be repaired. If faulty, the unit must be replaced.

  19. Separate the EBCM (1) from the BPMV (2).

Installation Procedure


    Object Number: 772017  Size: SH
  1. Clean the seal surface of the BPMV (2).
  2. Install the EBCM (1) to the BPMV (2).
  3. Make sure that the internal pump motor connector (3) is installed into the new EBCM (1) prior to EBCM replacement.
  4. Caution: Refer to Fastener Caution in the Preface section.


    Object Number: 782378  Size: SH
  5. Install the 4 screws connecting the EBCM to the BPMV.
  6. Tighten
    Tighten the screws in sequence (1-4) to 5 N·m (44 lb in).


    Object Number: 899235  Size: SH

    Caution: To prevent equipment damage, never connect or disconnect the wiring harness connection from the EBCM with the ignition switch in the ON position.

  7. Connect the EBCM electrical connector (1) to the EBCM (3).
  8. Rotate the EBCM connector tab (2) rearward to the locked position.
  9. Install the washer solvent container bracket. Refer to Windshield Washer Solvent Container Replacement.
  10. Install the wheelhouse liner. Refer to Wheelhouse Panel Replacement - Right Side.
  11. Install the air deflector shield. Refer to Front Air Deflector Replacement.
  12. Lower the vehicle.
  13. If installing a replacement module, program the replacement module. Refer to Control Module References.
  14. Use the scan tool in order to clear the DTCs.
  15. Perform the ABS Diagnostic System Check. Refer to Diagnostic System Check - Vehicle.