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Home >> Buick >> 2003 >> Park Avenue Base >> Repair and Diagnosis >> Brakes >> Traction Control >> Antilock Brake System >> Repair Instructions >> Electronic Brake Control Module (EBCM) Replacement >> Removal Procedure
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Removal Procedure

  1. Turn OFF the ignition.
  2. Raise and support the vehicle. Refer to LIFTING AND JACKING THE VEHICLE .
  3. Remove the left front tire and wheel assembly. Refer to TIRE AND WHEEL REMOVAL AND INSTALLATION in Tires and Wheels.
  4. Remove the left front fascia extension. Refer to FASCIA EXTENSION REPLACEMENT - FRONT in Bumpers.
    IMPORTANT: The area around the electronic brake control module (EBCM) must be free from loose dirt to prevent contamination of dissembled ABS components.
  5. Thoroughly clean all of the contaminants from and around the EBCM assembly.
  6. Remove the EBCM connector position assurance (2) from the EBCM electrical connector (1).
    Fig 1: Removing EBCM Connector Position Assurance From EBCM Electrical Connector
    G01446389Courtesy of GENERAL MOTORS CORP.
  7. Rotate the EBCM connector tab up to the unlocked position.
    NOTE: To prevent equipment damage, never connect or disconnect the wiring harness connection from the EBCM with the ignition switch in the ON position.
  8. Disconnect the EBCM electrical connector (1) from the EBCM (4).
  9. Disconnect the brake pressure modulator valve (BPMV) electrical connector (2) from the EBCM (3).
    Fig 2: Disconnecting Brake Pressure Modulator Valve (BPMV) Electrical Connector From EBCM
    G01446390Courtesy of GENERAL MOTORS CORP.
  10. Remove the 6 EBCM to BPMV screws (2).
    Fig 3: Removing BPMV Screws
    G01446391Courtesy of GENERAL MOTORS CORP.
  11. Clean the surface of the EBCM/BPMV assembly.
    IMPORTANT: The EBCM cannot be repaired. If faulty, the unit must be replaced.
  12. Separate the EBCM (2) from the BPMV (1).
    Fig 4: Separating EBCM From BPMV
    G01446392Courtesy of GENERAL MOTORS CORP.