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Home › Buick › 2003 › Century Base › Repair and Diagnosis › Brakes › Traction Control › Antilock Brake System › Repair Instructions › Brake Pressure Modulator Valve (BPMV) Replacement › Removal Procedure

Removal Procedure

CAUTION: Refer to Brake Fluid Irritant Caution in Cautions and Notices.
NOTE: Refer to Brake Fluid Effects on Paint and Electrical Components Notice in Cautions and Notices.
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.
  1. Turn the ignition switch to the OFF position.
  2. Remove the attaching bolts for the cruise control module.
  3. Swing the cruise control module off to the side.
  4. Disengage the red locking tab from the connector (1).
    Fig 1: Disengaging Red Locking Tab From Connector (BPMV)
    G01569888Courtesy of GENERAL MOTORS CORP.
  5. Push down lock tab (1) and then move sliding connector cover (2) to the open position.
  6. Disconnect the EBCM harness connector.
    IMPORTANT: Note the locations of the brake pipes in order to aid in installation.
  7. Disconnect the wheel cylinder brake pipes (1) from the BPMV (2).
    Fig 2: Disconnecting Wheel Cylinder Brake Pipes From BPMV
    G01569889Courtesy of GENERAL MOTORS CORP.
  8. Swing the 4 wheel cylinder brakes pipes out of the way only after covering the open pipes to avoid dripping or being contaminated.
  9. Disconnect the master cylinder brake pipes (2) from the BPMV (4).
    Fig 3: Disconnecting Master Cylinder Brake Pipes From BPMV
    G01569890Courtesy of GENERAL MOTORS CORP.
  10. It is not necessary to remove the brake pipes (2) from the master cylinder (1).
  11. Swing the 2 master cylinder brake pipes out of the way only after covering the open pipes to avoid dripping or being contaminated.
  12. Remove the 2 BPMV mounting bracket nuts (3) and 1 bolt located near the bottom and 1 nut (1) located at the top of the BPMV mounting bracket (4) to the strut tower.
  13. Disconnect the ground strap between the EBCM assembly and the chassis.
  14. Remove the BPMV mounting bracket (4) and EBCM assembly (2) from the vehicle.
    Fig 4: Removing BPMV Mounting Bracket And EBCM Assembly
    G01569891Courtesy 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 4 bolts (3) that connect the BPMV (1) to the mounting bracket (2).
    Fig 5: Removing BPMV Mounting Bolts To Mounting Bracket
    G01569892Courtesy of GENERAL MOTORS CORP.
  16. Remove EBCM if replacing the BPMV only. Refer to ELECTRONIC BRAKE CONTROL MODULE (EBCM) REPLACEMENT  .
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