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Home >> Cadillac >> 2007 >> STS V >> Repair and Diagnosis >> Brakes >> Antilock Brake System, Traction Control System & Stability Control System >> Repair Instructions >> Electronic Brake Control Module Replacement >> Removal Procedure
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Removal Procedure

    IMPORTANT:
    • The ignition switch must be placed in the OFF mode ONLY, before disconnecting the negative battery cable during this procedure. If the ignition switch is accidentally placed into ignition ON engine OFF mode, the control modules will be activated and disconnecting the negative cable will cause various DTC's to be set. Refer to Keyless Entry System Description and Operation .
    • After the ignition switch is placed into OFF mode, a waiting period of 2 minutes must be observed to allow the high-speed LAN control modules to deactivate before disconnecting or connecting the negative battery cable during this procedure. If the waiting period is not observed, one or more of these control modules may still be activated, this will cause various DTC's to be set.
  1. Place the ignition switch into OFF mode. DO NOT place the ignition switch into ignition ON engine OFF mode.
  2. Wait for a minimum of 2 minutes to allow the high-speed LAN control modules to deactivate.
  3. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection .
  4. Raise and support vehicle. Refer to Lifting and Jacking the Vehicle .
  5. Remove the air deflector shield. Refer to Front Air Deflector Replacement .
    6. IMPORTANT: It is not necessary to remove the washer solvent container from the vehicle.
  6. Remove the washer solvent container. Refer to Washer Solvent Container Replacement (w/o CE4) or Washer Solvent Container Replacement (w CE4) .
    7. IMPORTANT: The area around the electronic brake control module (EBCM) must be free from loose dirt to prevent contamination of dissembled ABS components.
  7. Thoroughly clean all of the contaminants from and around the EBCM assembly.
    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. Press the retainer on the EBCM electrical connector (1).
    9. Fig 1: View Of EBCM And Electrical Connector
    GM899234Courtesy of GENERAL MOTORS CORP.
  9. Rotate the EBCM connector tab (2) forward to the unlocked position.
  10. Disconnect the EBCM electrical connector (1) from the EBCM and position out of the way.
    11. Fig 2: Locating EBCM-To-BPMV Screws
    GM782380Courtesy of GENERAL MOTORS CORP.
  11. Remove the 4 EBCM to brake pressure modulator valve (BPMV) screws (1).
    12. Fig 3: View Of EBCM & BPMV
    GM772017Courtesy of GENERAL MOTORS CORP.
  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).
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