Malibu 2001-2005

Electronic Brake Control Module

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Removal & Installation



  1. Raise and support the vehicle on a suitable hoist.
  2.  
  3. Remove the left engine splash shield.

    Click image to see an enlarged view

    Fig. Remove the Connector Position Assurance (CPA) (2) from the connector lock tab (1)

  4.  
  5. Remove the Connector Position Assurance (CPA) from the connector lock tab.
  6.  
  7. Push the lock tab down and then move the sliding connector cover to the open position.

    Click image to see an enlarged view

    Fig. Disconnect the EBCM harness connector (2) from the EBCM

  8.  
  9. Disconnect the EBCM harness connector from the EBCM.
  10.  
  11. Brush off any dirt or debris that has accumulated on the EBCM/BPMV assembly.
  12.  
  13. Remove the four EBCM to BPMV screws.
    NOTE
    Do not pry apart using a tool. Be careful not to damage the BPMV surface


    NOTE
    Care must be taken not to damage the solenoid valves when the EBCM is removed from the BPMV



    Click image to see an enlarged view

    Fig. Remove the EBCM (1) from the BPMV (2) by gently pulling apart until separated

  14.  
  15. Remove the EBCM from the BPMV by gently pulling apart until separated.
  16.  

To install:

  1. Clean the EBCM gasket and the BPMV surface with alcohol using a clean rag.
  2.  
  3. Install the EBCM (1) to the BPMV.
    NOTE
    Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

  4.  
  5. Install the four screws that attach the EBCM  to the BPMV, and tighten the screws to 44 lb inches (5 Nm).
  6.  
  7. Connect the EBCM harness connector to the EBCM.
  8.  
  9. Push down the harness connector lock tab and then move the sliding connector cover back in the home position to lock.
  10.  
  11. Push the CPA back into place.
  12.  
  13. Install the left engine splash shield.
  14.  
  15. Lower the vehicle.
  16.  


NOTE
Always connect or disconnect the wiring harness connector from the Electronic Brake Control Module (EBCM)/EBTCM with the ignition switch in the OFF position. Failure to observe this precaution could result in damage to the EBCM/EBTCM.

  1. Turn the ignition switch to the OFF position.
  2.  
  3. Clean the electronic brake control module (EBCM) to Brake Pressure Modulator Valve (BPMV) area of any accumulated dirt and foreign material.
  4.  
  5. Disconnect the electrical connector from the EBCM.

    Click image to see an enlarged view

    Fig. Remove the 4 EBCM-to-BPMV retaining bolts

  6.  
  7. Remove the 4 EBCM-to-BPMV retaining bolts.
  8.  
  9. Separate the EBCM from the BPMV by carefully pulling apart.
  10.  
  11. Ensure the motor pin connector gets removed with the EBCM. A new motor pin connector comes with the replacement EBCM and should be replaced during service of the EBCM.
  12.  

To install:

  1. Clean the sealing surface of the BPMV, with denatured alcohol and a clean shop cloth.
  2.  
  3. Use care when aligning the EBCM to the BPMV electrical terminals . Install the EBCM to the BPMV.
    NOTE
    Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

  4.  
  5. Install the 4 EBCM-to-BPMV retaining bolts. Tighten the bolts in a crisscross pattern, and tighten the bolts to 44 lb inches (5 Nm).
    NOTE
    Ensure that the electrical connector is correctly inserted properly into the EBCM prior to swinging the assist locking lever into position. Failure to make a proper connection may cause communication problems with the module.



    Click image to see an enlarged view

    Fig. Connect the electrical connector to the EBCM

  6.  
  7. Connect the electrical connector to the EBCM.
  8.  
  9. If installing a new EBCM it is necessary to program the EBCM.
    NOTE
    Do NOT start the engine, but only turn the ignition switch to the ON position.

  10.  

 
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