Aura, Outlook 2007

Brake Pressure Modulator Valve

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Removal & Installation



  1. Turn the ignition switch to the OFF position.
  2.  
  3. Clean the brake modulator assembly pipe fitting areas of any accumulated dirt and foreign material.
  4.  
  5. Disconnect the electrical connector from the Electronic Brake Control Module (EBCM).
  6.  
  7. Remove the EBCM. Disconnect the electrical connector from the brake pressure sensor, if equipped.
  8.  
  9. Place a shop towel under the brake modulator assembly to catch any brake fluid loss.
    NOTE
    Prior to disconnecting the brake pipes from the ABS modulator assembly, note the locations of the brake pipes to the valve assembly, to aid during installation.

  10.  
  11. Disconnect the 4 brake pipes from the Brake Pressure Modulator Valve (BPMV).
  12.  
  13. Cap the brake pipe ends to prevent brake fluid loss and contamination.
  14.  
  15. Disconnect the master cylinder brake pipes from the BPMV.
  16.  
  17. Cap the brake pipe ends to prevent brake fluid loss and contamination. Plug the modulator brake pipe openings to prevent brake fluid loss and contamination.
  18.  
  19. Remove the 4 insulator bolts on the brake pressure modulator valve bracket.
  20.  
  21. Remove the brake modulator valve from modulator bracket by pulling straight up.
  22.  

To install:


NOTE
When installing a new brake modulator assembly, do NOT remove the shipping plugs from the pipe ports until after installation into the vehicle.

  1. Install the brake modulator valve to the modulator bracket.
  2.  
  3. Install the 4 brake pressure modulator valve bracket insulator bolts and tighten to 89 in. lbs. (10 Nm).
  4.  
  5. Remove the caps from the master cylinder brake pipe ends.
  6.  
  7. Connect the master cylinder brake pipes to the modulator assembly, in the same location as removed.
  8.  
  9. Remove the caps from the caliper and wheel cylinder brake pipe ends.
  10.  
  11. Remove the plugs from the caliper and wheel cylinder ports on the modulator assembly.
  12.  
  13. Connect the 4 brake pipes to the modulator valve, in the same location as removed.
  14.  
  15. Tighten all the brake pipe fittings at the BPMV to 15 ft. lbs. (20 Nm).
  16.  
  17. Install the EBCM.
    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.

  18.  
  19. Connect the electrical connector to the EBCM.
  20.  
  21. Connect the electrical connector to the brake pressure sensor, if equipped.
  22.  
  23. Bleed the hydraulic brake system.
    NOTE
    Do NOT start the engine, but only turn the ignition switch to the ON position. Observe the feel of the brake pedal after performing the diagnostic system check. If the pedal now feels spongy, air may have been in the secondary circuit of the brake modulator assembly, which may have been introduced into the primary circuit. If the pedal feels spongy, perform the Antilock Brake System Automated Bleed Procedure .

  24.  
  25. Remove the shop towel and discard into an approved container.
  26.  

  1. Turn the ignition switch to the OFF position.
  2.  
  3. Remove the air cleaner assembly.
  4.  
  5. Disconnect the Electronic Brake Control Module (EBCM) electrical connector by lifting the locking tabs.
  6.  
  7. Disconnect the master cylinder inlet brake pipe fittings.
  8.  
  9. Cap the brake pipe fittings and plug the Brake Pressure Modulator Valve (BPMV) inlet ports to prevent brake fluid loss and contamination.
  10.  
  11. Disconnect the BPMV outlet port front brake pipe fittings.
  12.  
  13. Cap the brake pipe fittings and plug the BPMV outlet ports to prevent brake fluid loss and contamination.
  14.  
  15. Disconnect the BPMV outlet port rear brake pipe fittings.
  16.  
  17. Cap the brake pipe fittings and plug the BPMV outlet ports to prevent brake fluid loss and contamination.
  18.  
  19. Remove the 2 BPMV bracket nuts.
  20.  
  21. Remove the BPMV from the vehicle.
  22.  
  23. Remove the 2 BPMV insulator nuts and washers.
  24.  
  25. Carefully remove the BPMV from the bracket by pulling upward.
  26.  
  27. Remove the 2 BPMV insulators.
  28.  
  29. Inspect the insulators for damage and replace, if necessary.
  30.  
  31. Remove the lower BPMV insulator.
  32.  
  33. Inspect the insulator for damage and replace, if necessary.
  34.  
  35. If installing a new BPMV, remove the EBCM.
  36.  

To install:

  1. Install the EBCM, if removed.
  2.  
  3. Install the 2 BPMV insulators to the BPMV.
    NOTE
    Denatured alcohol may be used as an assembly aid to install the insulators.

  4.  
  5. Install the lower BPMV insulator to the bracket.
  6.  
  7. Carefully install the BPMV to the bracket.
  8.  
  9. Install the 2 BPMV insulator washers and the 2 nuts.
  10.  
  11. Install the BPMV and bracket assembly to the frame rail.
  12.  
  13. Install the 2 BPMV bracket nuts and tighten to 15 ft. lbs. (20 Nm).
  14.  
  15. Connect the BPMV outlet port rear brake pipe fittings. Tighten to 13 ft. lbs. (17 Nm).
  16.  
  17. Connect the BPMV outlet port front brake pipe fittings. Tighten to 13 ft. lbs. (17 Nm).
  18.  
  19. Connect the master cylinder inlet brake pipe fittings. Tighten to 15 ft. lbs. (20 Nm).
  20.  
  21. Connect the EBCM electrical connector.
    NOTE
    A new BPMV comes with both the primary and secondary circuits pre-filled with brake fluid. As long as the ignition key has not been cycled, only a base brake bleed is necessary.

  22.  
  23. Bleed the hydraulic brake system.
  24.  
  25. Perform the Diagnostic System Check - Vehicle using a scan tool.
  26.  
  27. Observe the brake pedal feel after performing the diagnostic system check. If the pedal now feels spongy, air may have been in, or may have been introduced into the primary circuit.
  28.  
  29. If the pedal feels spongy, perform the Antilock Brake System Automated Bleed Procedure .
  30.  
  31. Install the air cleaner assembly.
  32.  

 
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