SRX 2004-2005

Hydraulic Control Module

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Removal & Installation




WARNING
Clean, high quality brake fluid is essential to the safe and proper operation of the brake system. You should always buy the highest quality brake fluid that is available. If the brake fluid becomes contaminated, drain and flush the system, then refill the master cylinder with new fluid. Never reuse any brake fluid. Any brake fluid that is removed from the system should be discarded. Also, do not allow any brake fluid to come in contact with a painted surface; it will damage the paint.


CAUTION
For safety reasons, the brake pressure modulator valve assembly must not be repaired, the complete unit must be replaced. With the exception of the EBCM, no screws on the brake pressure modulator valve assembly may be loosened. If screws are loosened, it will not be possible to get the brake circuits leak-tight and personal injury may result.

  1. Before servicing the vehicle, refer to the Precautions Section.
  2.  
  3. Turn OFF the ignition.
    WARNING
    The area around the Electronic Brake Control Module (EBCM) must be free from loose dirt to prevent contamination of disassembled ABS components.

  4.  
  5. Thoroughly clean all contaminants from around the EBCM.
    NOTE
    Record the location of all brake pipes to the brake pressure modulator valve (BPMV) for use as an aid during installation.



    Click image to see an enlarged view

    Fig. Brake pipe locations

  6.  
  7. Remove the 2 master cylinder brake pipes (3) from the BPMV (1).
  8.  
  9. Clean any brake fluid spillage from the BPMV (1).
  10.  
  11. Raise and support vehicle.
  12.  
  13. Remove the air deflector shield.
  14.  
  15. Remove the wheelhouse liner.
  16.  
  17. Remove the washer solvent container bracket.
  18.  
  19. Remove the 4 wheel brake pipes (2) from the BPMV (1).
  20.  
  21. Press the retainer on the EBCM electrical connector  (1).

    Click image to see an enlarged view

    Fig. EBCM electrical connector

  22.  
  23. Rotate the EBCM connector tab (2) forward to the unlocked position.
  24.  
  25. Disconnect the EBCM electrical connector (1) from the EBCM and position out of the way.
  26.  
  27. Remove the front BPMV bracket nuts.
  28.  
  29. Remove the EBCM/BPMV assembly (1) from the BPMV bracket.

    Click image to see an enlarged view

    Fig. EBCM/BPMV mounting bracket (1)

  30.  
  31. Remove and discard the 4 EBCM to BPMV screws.
  32.  
  33. Clean the surface of the EBCM/BPMV assembly.
  34.  
  35. Remove the EBCM (1) from the BPMV (2).

    Click image to see an enlarged view

    Fig. EBCM to BPMV connection

  36.  

To install:

  1. Clean the seal surface of the BPMV.
  2.  
  3. Install the EBCM (1) to the BPMV (2).
  4.  
  5. Verify that the internal pump motor connector (3) is installed into the new EBCM (1) prior to EBCM replacement.
    NOTE
    Use New EBCM/BPMV screws after separating the EBCM from the BPMV.

  6.  
  7. Install the 4 NEW screws connecting the EBCM to the BPMV and tighten in sequence (1-4) to 44 inch lbs. (5 Nm).
    NOTE
    Verify that the rubber isolator is installed on the BPMV. The isolator protects the EBCM/BPMV assembly from vehicle vibrations.



    Click image to see an enlarged view

    Fig. EBCM to BPMV tightening sequence

  8.  
  9. Install the EBCM/BPMV assembly (1) to the BPMV bracket.
  10.  
  11. Install the BPMV bracket nuts (2) and tighten to 89 inch lbs. (10 Nm).
  12.  
  13. Connect the EBCM electrical connector (1) to the EBCM (2).
  14.  
  15. Rotate the EBCM connector tab (2) rearward to the locked position.
    CAUTION
    The brake pipes must be fully installed to the brake pipe mounting retainers on the frame. Failure to properly retain the brake pipes may cause the pipes to contact the frame and/or the transmission resulting in possible loss of brake fluid and personal injury.


    CAUTION
    Make sure brake pipes are correctly connected to BPMV. If brake pipes are switched by mistake Inlet vs. Outlet, wheel lockup will occur and personal injury may result.



    Click image to see an enlarged view

    Fig. Brake pipe locations

  16.  
  17. Install the 4 wheel brake pipes (2) to the BPMV (1) using the locations recorded during the removal procedure and tighten to 20ft. lbs. (27 Nm).
  18.  
  19. Install the washer solvent container bracket.
  20.  
  21. Install the wheelhouse liner. Refer.
  22.  
  23. Install the air deflector shield.
  24.  
  25. Install the 2 master cylinder brake pipes (3) to the BPMV (1) using the locations recorded during the removal procedure and tighten to 20 ft. lbs. (27 Nm).
  26.  
  27. If equipped with a brake fluid pressure sensor (4), connect the electrical connector.
  28.  
  29. Fill and bleed the hydraulic brake system.
  30.  
  31. Perform the Auto Bleed Procedure.
  32.  
  33. Use an OBD II compatible scan tool to perform a system check.
  34.  

 
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