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Home >> Cadillac >> 2018 >> CT6 Plug-In >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 12 (Antilock Brake System (Except Hybrid)) >> Repair Instructions >> Brake Pressure Modulator Valve Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different variant/trim than selected.
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. Place the ignition switch in the OFF position.
  2. Engine Wiring Harness Fuse Block Bracket - Remove - Engine Wiring Harness Fuse Block Bracket Replacement
  3. Thoroughly clean the electronic brake control module (EBCM) to brake pressure modulator valve (BPMV) area of any accumulated dirt and debris.
  4. Disconnect the EBCM electrical connector.
  5. GM4245817Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Label all the brake pipes to ensure they are re-installed in the correct ports of the brake pressure modulator valve.

    Brake Pressure Modulator Valve Primary Pipe Fitting (1) - Disconnect

  6. Cap the brake pipe fitting and plug the BPMV inlet port to prevent brake fluid loss and contamination.
  7. GM4245818Courtesy of GENERAL MOTORS COMPANY

    Brake Pressure Modulator Valve Secondary Pipe Fitting (1) - Disconnect

  8. Cap the brake pipe fitting and plug the BPMV inlet port to prevent brake fluid loss and contamination.
  9. GM4245819Courtesy of GENERAL MOTORS COMPANY

    Left Rear Brake Pipe Fitting (1) - Disconnect

  10. Cap the brake pipe fitting and plug the BPMV outlet port to prevent brake fluid loss and contamination.
  11. GM4245820Courtesy of GENERAL MOTORS COMPANY

    Right Front Brake Pipe Fitting (1) - Disconnect

  12. Cap the brake pipe fitting and plug the BPMV outlet port to prevent brake fluid loss and contamination.
  13. GM4245821Courtesy of GENERAL MOTORS COMPANY

    Left Front Brake Pipe Fitting (1) - Disconnect

  14. Cap the brake pipe fitting and plug the BPMV outlet port to prevent brake fluid loss and contamination.
  15. GM4245823Courtesy of GENERAL MOTORS COMPANY

    Right Rear Brake Pipe Fitting (1) - Disconnect

  16. Cap the brake pipe fitting and plug the BPMV outlet port to prevent brake fluid loss and contamination.
  17. GM4245824Courtesy of GENERAL MOTORS COMPANY

    Brake Pressure Modulator Valve Bracket Nut (1) - Remove

  18. GM4245825Courtesy of GENERAL MOTORS COMPANY

    Brake Pressure Modulator Valve Bracket Bolt (1) - Loosen

  19. GM4245826Courtesy of GENERAL MOTORS COMPANY

    Brake Pressure Modulator Valve Bracket Bolt (1) - Loosen

  20. GM4245827Courtesy of GENERAL MOTORS COMPANY

    Brake Pressure Modulator Valve Assembly (1) - Remove