GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Cadillac 🢒 2003 🢒 CTS - RHD 🢒 Engine 🢒 Engine Electrical 🢒 Electronic Brake Control Module Replacement

Removal Procedure

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


    Object Number: 804385 Size: SH
  1. Turn OFF the ignition.

    2. Important: The area around the electronic brake control module (EBCM) must be free from loose dirt to prevent contamination of dissembled ABS components.

  2. Thoroughly clean all of the contaminants from and around the EBCM assembly.

    3. Important: It is not necessary to drain the coolant or disconnect the coolant lines when moving the coolant bypass valve.

  3. Disconnect the coolant bypass valve from the radiator and position out of the way. Refer to Coolant Bypass Valve Replacement in Engine Cooling.
  4. Remove the EBCM connector position assurance retainer (4) from the EBCM electrical connector (1).
  5. Rotate the EBCM connector tab (2) up to the unlocked position.
  6. Disconnect the EBCM electrical connector (1) from the EBCM (3).

    7. Object Number: 782380 Size: SH
  7. Remove and discard the 2 upper EBCM to brake pressure modulator valve (BPMV) screws (1).
  8. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  9. Remove the front air deflector. Refer to Front Air Deflector Replacement in Body Front End.
  10. Remove and discard the 2 lower EBCM to brake pressure modulator valve (BPMV) screws (1).
  11. Lower the vehicle.

    12. Object Number: 772017 Size: SH
  12. Clean the surface of the EBCM/BPMV assembly.

    13. Important: The EBCM cannot be repaired. If faulty, the unit must be replaced.

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

Installation Procedure

    Object Number: 772017 Size: SH
  1. Clean the seal surface of the BPMV.
  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. Important: Use New EBCM/BPMV screws after separating the EBCM from the BPMV.

  4. Install the 2 upper NEW EBCM to BPMV screws.
  5. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.

    6. Notice: Refer to Fastener Notice in the Preface section.


    Object Number: 782378 Size: SH
  6. Install the 2 lower NEW EBCM to BPMV screws.

    7. Tighten
    Tighten the (4) NEW EBCM to BPMV screws in sequence (1-4) to 5 N·m (44 lb in).

  7. Install the front air deflector. Refer to Front Air Deflector Replacement in Body Front End.
  8. Lower the vehicle.

    9. Object Number: 772830 Size: SH

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

  9. Connect the EBCM electrical connector (1) to the EBCM (3).
  10. Rotate the EBCM connector tab (2) down to the locked position.
  11. Install the EBCM connector position assurance retainer (4) to the EBCM electrical connector (1).
  12. Connect the coolant bypass valve to the radiator. Refer to Coolant Bypass Valve Replacement in Engine Cooling.
  13. Use the scan tool in order to clear the DTCs.
  14. Perform the auto bleed procedure. Refer to Antilock Brake System Automated Bleed Procedure .
  15. Perform the ABS Diagnostic System Check. Refer to Diagnostic System Check - ABS .