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Home › Chevrolet › 2021 › Bolt EV Premier › Repair and Diagnosis › Brakes › Traction Control › Antilock Brake System › Repair Instructions › Electronic Brake Control Module with Brake Pressure Modulator Valve Replacement › Installation Procedure

Installation Procedure

  1. GM4625989Courtesy of GENERAL MOTORS COMPANY

    Brake Pressure Modulator Valve Insulator (2) - Install NEW [ 2x ]

  2. Electronic Brake Control Module with Brake Pressure Modulator Valve (1) @ Brake Pressure Modulator Valve Bracket - Install
  3. GM4625988Courtesy of GENERAL MOTORS COMPANY

    Brake Pressure Modulator Valve Insulator Washer (2) - Install NEW [ 2x ]

  4. Brake Pressure Modulator Valve Insulator Nut (1) - Install NEW [ 2x ]
    5. CAUTION:

    Fastener Caution

  5. Brake Pressure Modulator Valve Insulator Nut (1) - Tighten [ 2x ] 8 N.m (71 lb/in)
  6. GM4514619Courtesy of GENERAL MOTORS COMPANY

    Electronic Brake Control Module with Brake Pressure Modulator Valve and Bracket Assembly (2) @ Vehicle - Install

  7. Brake Pressure Modulator Valve Bracket Nut (1) @ Front Compartment Inner Side Rail - Install and tighten [ 2x ] 22 N.m (16 lb-ft)
  8. GM4514617Courtesy of GENERAL MOTORS COMPANY

    Brake Pressure Modulator Valve Bracket Nut (1) @ Front Wheel House Panel - Install and tighten [ 2x ] 22 N.m (16 lb-ft)

  9. GM4625990Courtesy of GENERAL MOTORS COMPANY

    Body Wiring Harness Clip (3) @ Brake Pressure Modulator Valve Bracket - Install

  10. Electrical Connector (1) @ Electronic Brake Control Module (2) - Connect
  11. GM4514615Courtesy of GENERAL MOTORS COMPANY
    WARNING:

    Make sure brake pipes are correctly connected to brake pressure modulator valve. If brake pipes are switched by mistake, wheel lockup will occur and personal injury may result. The only two ways this condition can be detected are by using a Scan Tool by doing an Antilock stop.

    Brake Pipe Fitting (1) @ Brake Pressure Modulator Valve (2) - Install and tighten [ 4x ] 18 N.m (13 lb-ft)

  12. GM4514614Courtesy of GENERAL MOTORS COMPANY
    WARNING:

    Make sure brake pipes are correctly connected to brake pressure modulator valve. If brake pipes are switched by mistake, wheel lockup will occur and personal injury may result. The only two ways this condition can be detected are by using a Scan Tool by doing an Antilock stop.

    NOTE:

    Make sure that the electronic brake control module is fully seated into the grommets after the brake pipes are tightened.

    Brake Pressure Modulator Valve Rear Pipe Fitting (2) @ Brake Pressure Modulator Valve (3) - Install and tighten 25 N.m (18 lb-ft)

  13. Brake Pressure Modulator Valve Front Pipe Fitting (1) @ Brake Pressure Modulator Valve (3) - Install and tighten 25 N.m (18 lb-ft)
  14. GM4529636Courtesy of GENERAL MOTORS COMPANY

    Drive Motor Battery Positive and Negative Cable (1) - Install - Drive Motor Battery Positive and Negative Cable Replacement

  15. Install the heater surge tank to the heater surge tank bracket. Heater Coolant Surge Tank Replacement
  16. Enable the high voltage system. High Voltage Enabling
  17. Program the electronic brake control module. Control Module References
  18. Bleed the brake system. Hydraulic Brake System Bleeding
  19. Calibrate the brake pressure modulator valve pressure sensor. Brake Pressure Modulator Valve Pressure Sensor Calibration 
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