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Home >> Cadillac >> 2003 >> Escalade EXT >> Repair and Diagnosis >> External Pages >> Different car >> Section 610 (Antilock Brake System) >> Repair Instructions >> Brake Pressure Modulator Valve (BPMV) Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2003 Cadillac CTS. However, it is still accessible from the selected car via links, so may be relevant.
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.
Fig 1: Coolant Lines From Coolant Bypass Valve
G02088089Courtesy of GENERAL MOTORS CORP.
  1. Turn OFF the ignition.

    Important:  The area around the electronic brake control module (EBCM) must be free from loose dirt to prevent contamination of disassembled ABS components.

  2. Thoroughly clean all contaminants from around the EBCM.

    Important:  It is not necessary to drain the coolant or disconnect the coolant lines from the coolant bypass valve.

  3. Disconnect the coolant bypass valve from the radiator and position out of the way. Refer to COOLANT BYPASS VALVE REPLACEMENT in Engine Cooling.
    CAUTION: Brake fluid may irritate eyes and skin. In case of contact, take the following actions:
    • Eye contact-rinse thoroughly with water.
    • Skin contact-wash with soap and water.
    • If ingested-consult a physician immediately.
    NOTE: Refer to BRAKE FLUID EFFECTS ON PAINT & ELECTRICAL COMPONENTS NOTICE in Cautions and Notices.

    Important:  Record the location of all brake pipes to the brake pressure modulator valve (BPMV) for use as an aid during installation.

  4. Remove the 2 master cylinder brake pipes (3) from the BPMV (1).
  5. Remove the 4 wheel brake pipes (2) from the BPMV (1).
  6. Clean any brake fluid spillage from the BPMV (1).
  7. If equipped with a brake fluid pressure sensor (4), disconnect the electrical connector, from the brake fluid pressure sensor.
  8. Remove the EBCM connector position assurance (4) from the EBCM electrical connector (1).
  9. Rotate the EBCM connector tab (2) up to the unlocked position.
    NOTE: To prevent equipment damage, never connect or disconnect the wiring harness connection from the EBCM with the ignition switch in the ON position.
  10. Disconnect the EBCM electrical connector (1) from the EBCM (3).
    Fig 2: EBCM Components
    G02088090Courtesy of GENERAL MOTORS CORP.
  11. Remove the 2 BPMV bracket nuts (2).
  12. Remove the EBCM/BPMV assembly (1) from the BPMV bracket.
  13. Remove and discard the 4 EBCM to BPMV screws.
    Fig 3: BPMV Bracket Nuts
    G02088091Courtesy of GENERAL MOTORS CORP.
  14. Clean the surface of the EBCM/BPMV assembly.
  15. Remove the EBCM (1) from the BPMV (2).
    Fig 4: EBCM And BPMV
    G02088092Courtesy of GENERAL MOTORS CORP.
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