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Home >> Buick >> 2004 >> LeSabre Limited, 4T65E/MN3 >> Repair and Diagnosis >> Brakes >> Antilock Brake System, Traction Control System & Stability Control System >> Repair Instructions >> Electronic Brake Control Module Replacement >> Removal Procedure

Removal Procedure

  1. Turn OFF the ignition.
  2. Raise the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  3. Remove the left front wheel. Refer to Tire and Wheel Removal and Installation in Tires and Wheels.
  4. Remove the left front wheelhouse extension. Refer to Fascia Extension Replacement - Front in Bumpers.
    5. IMPORTANT: The area around the electronic brake control module (EBCM) must be free from loose dirt to prevent contamination of disassembled ABS components.
  5. Thoroughly wash all contaminants from around the EBCM.
  6. Rotate the EBCM connector tab up to the unlocked position.
    Fig 1: Removing/Installing Electronic Brake Control Module
    GM458835Courtesy of GENERAL MOTORS CORP.
  7. Remove the EBCM connector position assurance (2) from the EBCM electrical connector (1).
    8. 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. Fig 2: Identifying EBCM Electrical Connector
    GM458842Courtesy of GENERAL MOTORS CORP.
  9. Disconnect the brake pressure modulator valve (BPMV) electrical connector (2) from the EBCM (3).
    10. Fig 3: Disassembling/Reassembling Electronic Brake Control Module
    GM458840Courtesy of GENERAL MOTORS CORP.
  10. Remove the 6 EBCM to BPMV screws (2).
    11. Fig 4: View Of Both halves Of EBCM
    GM458834Courtesy of GENERAL MOTORS CORP.
  11. Clean the surface of the EBCM/BPMV assembly.
    12. IMPORTANT: The EBCM cannot be repaired. If faulty, the unit must be replaced.
  12. Separate the EBCM (2) from the BPMV (1).
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