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Home >> Saturn >> 2010 >> Sky Base, Automatic >> Repair and Diagnosis >> Brakes >> Antilock Brake System With Traction Control System & Stability Control System >> Repair Instructions >> Brake Pressure Modulator Valve Replacement >> Removal Procedure

Removal Procedure

WARNING: Refer to Brake Fluid Irritant Warning .
CAUTION: Refer to Brake Fluid Effects on Paint and Electrical Components Caution .
CAUTION: Always connect or disconnect the wiring harness connector from the EBCM/EBTCM with the ignition switch in the OFF position. Failure to observe this precaution could result in damage to the EBCM/EBTCM.
  1. Turn the ignition switch to the OFF position.
  2. Clean the electronic brake control module (EBCM) to brake pressure modulator valve (BPMV) area of any accumulated dirt and foreign material.
    3. Fig 1: View Of Brake Fluid Level Indicator Switch & Vacuum Brake Booster Vacuum Sensor Electrical Connectors
    GM1859458Courtesy of GENERAL MOTORS CORP.
  3. Disconnect the brake fluid level indicator switch electrical connector.
  4. Disconnect the vacuum brake booster vacuum sensor electrical connector.
    5. Fig 2: View Of Master Cylinder Wiring Harness & Nuts
    GM1859462Courtesy of GENERAL MOTORS CORP.
  5. Release the wiring harness retainer from the master cylinder mounting stud and position the wiring harness downward.
  6. Remove and discard the 2 master cylinder nuts.
  7. If equipped, disconnect the clutch master cylinder hose from the brake master cylinder reservoir.

    Cap the brake fluid reservoir outlet and plug the clutch master cylinder hose inlet to prevent brake fluid loss and contamination.

    8. Fig 3: View Of Master Cylinder Brake Pipe Fittings
    GM1859463Courtesy of GENERAL MOTORS CORP.
  8. Remove the 2 master cylinder brake pipe fittings from the BPMV.

    Cap the brake pipe fittings and plug the BPMV inlet ports to prevent brake fluid loss and contamination.

  9. Remove the brake master cylinder and master cylinder brake pipes as an assembly.
    10. Fig 4: View Of Rear Brake Pipe Fittings, Front Brake Pipe Fittings & EBCM Electrical Connector
    GM1859741Courtesy of GENERAL MOTORS CORP.
  10. Remove the 2 rear brake pipe fittings (1) from the BPMV.

    Cap the brake pipe fittings to prevent brake fluid loss and contamination.

  11. Remove the 2 front brake pipe fittings (2) from the BPMV.

    Cap the brake pipe fittings to prevent brake fluid loss and contamination.

  12. Lift the locking tabs on the lower edge of the EBCM electrical connector (3) and disconnect the electrical connector.
  13. Position the EBCM electrical connector and the wiring harness toward the front of the vehicle.
    14. Fig 5: Locating Upper & Lower BPMV Bracket Bolts & Brake Modulator Bracket Assembly
    GM1859743Courtesy of GENERAL MOTORS CORP.
  14. Remove the 2 upper BPMV bracket bolts (1).
  15. Loosen, but do not remove the lower BPMV bracket bolt (2).
  16. Remove the brake modulator and bracket assembly (3).
    17. Fig 6: View Of BPMV Bracket & Bolt
    GM1859744Courtesy of GENERAL MOTORS CORP.
  17. Remove the BPMV bolt.
  18. Carefully separate the BPMV from the bracket. Do not pry against the accumulator covers on the underside of the BPMV.
    19. Fig 7: View Of BPMV & EBCM Components
    GM1859745Courtesy of GENERAL MOTORS CORP.
  19. Remove the EBCM bolts (1).
  20. Carefully pull the EBCM (2) from the BPMV (3). Do not pry the components apart.
  21. If installing a new BPMV, remove and discard the EBCM O-ring seals (4).
  22. If reinstalling the BPMV, clean the sealing surface of the BPMV with denatured alcohol and allow to dry.
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