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Home >> Cadillac >> 2003 >> Escalade EXT >> Repair and Diagnosis >> External Pages >> Different car >> Section 633 (Antilock Brake System, Traction Control System & Stability Control System) >> Repair Instructions >> Brake Pressure Modulator Valve (BPMV) Replacement (CTS-V) >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2004 Cadillac CTS. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: View Of EBCM & BPMV
    GM772017Courtesy of GENERAL MOTORS CORP.
  1. Clean the seal surface of the BPMV.
  2. Install the EBCM (1) to the BPMV (2).
  3. Make sure that the internal pump motor connector (3) is installed into the new EBCM (1) prior to EBCM replacement.
    4. Fig 2: Installing Electronic Brake Control Module-To-Brake Pressure Modulator Valve Screws
    GM782378Courtesy of GENERAL MOTORS CORP.
    NOTE: Refer to Fastener Notice in Cautions and Notices.
    IMPORTANT: Use New EBCM/BPMV screws after separating the EBCM from the BPMV.
  4. Install the 4 NEW EBCM to BPMV screws.

    Tighten:  Tighten the (4) NEW EBCM to BPMV screws in sequence (1-4) to 5 N.m (44 lb in).

  5. Install the EBCM/BPMV assembly to the BPMV bracket.
  6. Install the 6 BPMV mounting bolts.

    Tighten:  Tighten the BPMV nuts to 10 N.m (89 lb in).

    7. Fig 3: View Of EBCM And Electrical Connector
    GM899234Courtesy of GENERAL MOTORS CORP.
    NOTE: To prevent equipment damage, never connect or disconnect the wiring harness connection from the EBCM with the ignition switch in the ON position.
  7. Connect the EBCM electrical connector (1) to the EBCM (3).
  8. Rotate the EBCM connector tab (2) to the locked position.
  9. Install the front air deflector. Refer to Air Deflector Replacement - Front in Body Front End.
  10. Lower the vehicle.
    11. CAUTION: The brake pipes must be fully installed to the brake pipe mounting retainers on the frame. Failure to properly retain the brake pipes may cause the pipes to contact the frame and/or the transmission resulting in possible loss of brake fluid and personal injury.
    Fig 4: Identifying Brake Pipes To Brake Pressure Modulator Valve
    GM772876Courtesy of GENERAL MOTORS CORP.
    CAUTION: Make sure brake pipes are correctly connected to BPMV. If brake pipes are switched by mistake Inlet vs. Outlet, wheel lockup will occur and personal injury may result.
    IMPORTANT: If a new BPMV is being installed, remove the shipping plugs from the valve openings.
  11. Install the 3 wheel brake pipes (2) to the BPMV (1) using the locations recorded during the removal procedure.

    Tighten:  Tighten the back 3 wheel brake pipes to 27 N.m (20 lb ft).

  12. Carefully lift the right side of the radiator up and move rearward to access the front brake pipe of (BPMV).
  13. Carefully install the front brake pipe from the (BPMV).

    Tighten:  Tighten the wheel brake pipe to 27 N.m (20 lb ft).

  14. Install the 2 master cylinder brake pipes (3) to the BPMV (1) using the locations recorded during the removal procedure.

    Tighten:  Tighten the master cylinder brake pipes to 27 N.m (20 lb ft).

  15. Carefully connect the brake pressure switch electrical connector.
  16. Carefully move the right side of the radiator rearward into the insulator in the frame.
  17. Install the upper radiator support bracket. Refer to Radiator Support Bracket Replacement (LA3, LY9) or Radiator Support Bracket Replacement (LY7) or Radiator Support Bracket Replacement (LS6) in Engine Cooling.
  18. If equipped with a brake fluid pressure sensor (4), connect the electrical connector.
  19. Install the right front wheel house liner. Refer to Wheelhouse Liner Replacement - Front in Body Front End.
  20. Install the air deflector. Refer to Air Deflector Replacement - Front in Body Front End.
  21. Install the right front tire and wheel assembly. Refer to Tire and Wheel Removal and Installation in Tires and Wheels.
  22. Fill and bleed the hydraulic brake system. Refer to Master Cylinder Reservoir Filling and Hydraulic Brake System Bleeding (Manual) or Hydraulic Brake System Bleeding (Pressure) in Hydraulic Brakes.
  23. Perform the Auto Bleed Procedure. Refer to ABS Automated Bleed Procedure .
  24. Perform the ABS Diagnostic System Check. Refer to Diagnostic System Check - ABS .
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