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Home >> Buick >> 2007 >> Rendezvous CX >> Repair and Diagnosis >> Brakes >> Antilock Brake System, Traction Control System & Stability Control System >> Repair Instructions >> Brake Pressure Modulator Valve Replacement >> Removal Procedure

Removal Procedure

CAUTION: Refer to Brake Fluid Irritant Caution .
CAUTION: For safety reasons, the Brake Pressure Modulator Valve (BPMV) must not be repaired; the complete unit must be replaced. With the exception of the EBCM/EBTCM, no screws may be loosened. If screws are loosened, it will not be possible to get the brake circuits leak-tight and personal injury may result.
NOTE: Refer to Brake Fluid Effects on Paint and Electrical Components Notice .
    Fig 1: Identifying EBCM Harness Connector
    GM230405Courtesy of GENERAL MOTORS CORP.
  1. Turn the ignition switch to the OFF position.
  2. Remove the cruise control module mounting bolts, if equipped.
  3. Position the cruise control module aside.
  4. Remove the air cleaner assembly from the engine compartment. Refer to Air Cleaner Assembly Replacement .
  5. Disconnect the electronic brake control module (EBCM) harness electrical connector (1).
  6. Disconnect the EBCM to brake pressure modulator valve (BPMV) electrical connector.
    7. Fig 2: Identifying Wheel Brake Pipes To BPMV
    GM777629Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: Note the locations of the brake pipes in order to aid in installation.
  7. Disconnect the 4 wheel brake pipes from the BPMV.
    8. IMPORTANT: Cap the brake pipes to prevent brake fluid leakage and contamination.
  8. Position the brake pipes aside.
    9. Fig 3: Master Cylinder Brake Pipes To BPMV
    GM777628Courtesy of GENERAL MOTORS CORP.
  9. Disconnect the master cylinder brake pipes from the BPMV.
  10. Loosen the brake pipes, but do not remove the brake pipes from the master cylinder.
    11. IMPORTANT: Cap the brake pipes to prevent brake fluid leakage and contamination.
  11. Position the brake pipes aside.
    12. Fig 4: Locating BPMV Mounting Bracket Nuts
    GM648180Courtesy of GENERAL MOTORS CORP.
  12. Remove the 2 lower BPMV mounting bracket nuts (2) from the inner wheel housing mount surface of the strut tower.
  13. Loosen the top BPMV mounting nut.
  14. Remove the BPMV mounting bracket and the EBCM assembly from the vehicle by sliding up and toward the engine to separate from the wheelhouse slot.
    15. Fig 5: Identifying BPMV Mounting Bracket Hardware
    GM777630Courtesy of GENERAL MOTORS CORP.
    NOTE: When removing the brake pressure modulator valve, protect the vehicle exterior from possible brake fluid spillage. Brake fluid can cause damage to painted surfaces.
  15. Remove the 2 nuts (1) that secure the BPMV to the mounting bracket (2).
  16. If only replacing the BPMV, remove the EBCM. Refer to Electronic Brake Control Module Replacement .
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