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Home >> Cadillac >> 2021 >> CT4 V, 4WD >> Repair and Diagnosis >> Brakes >> Mechanical - Hydraulic >> Hydraulic Brakes >> Repair Instructions >> Brake System Control Module Replacement >> Removal Procedure

Removal Procedure

  1. Prepare the brake system control module for removal with Service Programming System (SPS) and follow the on-screen instructions.
  2. Disconnect the battery negative cable. Battery Negative Cable Disconnection and Connection
  3. GM5325063Courtesy of GENERAL MOTORS COMPANY

    Using the appropriate trim tool, remove the windshield wiper arm finish caps (1) from both windshield wiper arms (3).

  4. Windshield Wiper Arm Nut (2) - Remove [2x]
  5. Grasp the outer ends of the windshield wiper arms (3) and gently rock both arms back and forth to remove the windshield wiper arms (3) from the windshield wiper transmission pivot shafts.
  6. GM5417116Courtesy of GENERAL MOTORS COMPANY

    Apply two layers of masking tape on the body around the top edges of the air inlet grille panel extensions (1) to prevent paint damage.

  7. Using a suitable plastic trim tool, carefully release the air inlet grille panel extension (1) clips.
  8. Remove the air inlet grille panel extensions (1) from the air inlet grille panel and both upper front fenders.
  9. GM5421986Courtesy of GENERAL MOTORS COMPANY

    Remove the hood rear outer air inlet seal retainers (1) from both sides.

  10. Remove the hood rear outer air inlet seals (2) from both sides.
  11. GM5421990Courtesy of GENERAL MOTORS COMPANY

    Remove the front compartment side sight shield retainers (1) from both sides.

  12. Remove the front compartment side sight shields (2) from both sides.
  13. GM5417442Courtesy of GENERAL MOTORS COMPANY

    Air Inlet Grille Panel Retainer (1) - Remove [6x]

  14. Air Inlet Grille Panel (2) - Remove
  15. Disconnect the windshield washer nozzle hose from the windshield washer pump hose.
  16. Lift the front edge of the air inlet grille panel (2) and slide the panel forward from both hood hinges and remove.
  17. GM5420286Courtesy of GENERAL MOTORS COMPANY

    Windshield Wiper System Module Shield (1) - Remove

  18. GM5420344Courtesy of GENERAL MOTORS COMPANY

    Disconnect the windshield wiper motor electrical connector.

  19. Windshield Wiper System Module Bolt (1) - Remove [2x]
  20. Slide the windshield wiper system module (2) inboard to release the grommet from the plenum and remove the windshield wiper system module (2) from the vehicle.
  21. GM5422039Courtesy of GENERAL MOTORS COMPANY

    Plenum Front Panel Nut (1) - Remove [3x]

  22. Plenum Front Panel Bolt (2) - Remove [3x]
  23. Pull the forward lamp wiring harness extension (3) out from the plenum front panel.
  24. GM5422041Courtesy of GENERAL MOTORS COMPANY

    Plenum Front Panel Bolt (1) - Remove [4x]

  25. Plenum Front Panel Nut (2) - Remove [3x]
  26. Pull the forward lamp wiring harness extension (3) out from the plenum front panel.
  27. GM5422044Courtesy of GENERAL MOTORS COMPANY

    Plenum Front Panel (1) - Remove

  28. GM5492906Courtesy of GENERAL MOTORS COMPANY

    Front End Sheet Metal Diagonal Brace Nut (1) - Remove

  29. Front End Sheet Metal Diagonal Brace Bolt (3) - Remove [2x]
  30. Front End Sheet Metal Diagonal Brace (2) - Remove
  31. GM5324655Courtesy of GENERAL MOTORS COMPANY

    Electrical Connector (1) @ Brake System Control Module - Disconnect

  32. GM5495340Courtesy of GENERAL MOTORS COMPANY

    Electronic Brake Control Module Bolt (1) - Remove and DISCARD [4x]

  33. GM5495344Courtesy of GENERAL MOTORS COMPANY
    CAUTION:

    When removing the Brake System Control Module (BSCM) from the Master Cylinder Assembly, ensure the valve coils in the (BSCM) clear the pins in the Master Cylinder Assembly. If the coils or pins are damaged the complete Master Cylinder Assembly will require replacement.

    Brake System Control Module (1) - Remove

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