Corvette 1997-2005

Electronic Brake Control Module

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Removal & Installation




NOTE
The ignition switch must be placed in 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 battery cable will cause various DTCs to be set. 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 active, this will cause various DTCs to be set.

  1. Place the ignition switch into OFF mode . Do NOT place the ignition switch into ignition ON engine OFF mode.
  2.  
  3. Wait for a minimum of 2 minutes to allow the high-speed LAN control modules to deactivate.
  4.  
  5. Disconnect the negative battery cable.
  6.  
  7. Thoroughly clean the electronic brake control module (EBCM) to brake pressure modulator valve (BPMV) area of any dirt or contaminants.
  8.  
  9. Raise and support the vehicle.
  10.  
  11. Remove the two BPMV bracket-to-crossmember mounting bolts to improve access to the EBCM and connector.
  12.  
  13. Support the ABS modulator assembly.
  14.  
  15. Disconnect the electrical connector from the brake fluid pressure sensor.
  16.  
  17. Depress the lock tab and release the cam to disconnect the electrical connector from the EBCM.
  18.  
  19. Remove the 4 EBCM-to-BPMV retaining bolts.
  20.  
  21. Separate the EBCM from the BPMV by carefully pulling apart.
  22.  

To install:

  1. Clean the sealing surface of the BPMV with denatured alcohol, or equivalent, and a clean shop cloth.
  2.  
  3. Ensure the motor connector is in place on the EBCM.
  4.  
  5. Install the EBCM to the BPMV. Use care when aligning the EBCM to the BPMV electrical terminals.
  6.  
  7. Install the 4 EBCM-to-BPMV retaining bolts. Tighten the bolts in a criss-cross pattern to 44 inch lbs. (5 Nm).
  8.  
  9. Connect the electrical connector to the EBCM. Ensure the cam is secured by the lock tab.
  10.  
  11. Connect the electrical connector to the brake fluid pressure sensor.
  12.  
  13. Install the two BPMV bracket-to-crossmember mounting bolts and tighten to 20 ft. lbs. (27 Nm).
  14.  
  15. Lower the vehicle.
  16.  
  17. Connect the negative battery cable.
  18.  

 
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