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Home >> Chevrolet >> 2020 >> Impala Premier >> Repair and Diagnosis >> Brakes >> Traction Control >> Antilock Brake System >> Repair Instructions >> Electronic Brake and Traction Control Module with Brake Pressure Modulator Valve Replacement >> Removal Procedure
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Removal Procedure

WARNING:

Refer to Brake Fluid Irritant Warning .

CAUTION:

To prevent equipment damage, never connect or disconnect the wiring harness connection from the EBCM with the ignition switch in the ON position.

  1. Turn the ignition OFF.
  2. Remove the battery tray. Refer to Battery Tray Replacement .
  3. Without draining the coolant and without disconnecting the hoses, remove and position aside the radiator surge tank. Refer to Radiator Surge Tank Replacement (LFX) .
  4. Disconnect the brake fluid level sensor electrical connector.
  5. Thoroughly clean the electronic brake control module (EBCM) to hydraulic control unit (HCU) area of any accumulated dirt and debris.
  6. Disconnect the EBCM electrical connector.
  7. GM2739893

    Disconnect the master cylinder secondary brake pipe fitting (1).

  8. Cap the brake pipe fitting and plug the HCU inlet port to prevent brake fluid loss and contamination.
  9. Disconnect the master cylinder primary brake pipe fitting (2).
  10. Cap the brake pipe fitting and plug the HCU inlet port to prevent brake fluid loss and contamination.
  11. GM2739896

    Disconnect the right rear brake pipe fitting (1).

  12. Cap the brake pipe fitting and plug the HCU outlet port to prevent brake fluid loss and contamination.
  13. Disconnect the left front brake pipe fitting (2).
  14. Cap the brake pipe fitting and plug the HCU outlet port to prevent brake fluid loss and contamination.
  15. GM2739899

    Disconnect the right front brake pipe fitting (1).

  16. Cap the brake pipe fitting and plug the HCU outlet port to prevent brake fluid loss and contamination.
  17. Disconnect the left rear brake pipe fitting (2).
  18. Cap the brake pipe fitting and plug the HCU outlet port to prevent brake fluid loss and contamination.
  19. GM2739902

    Remove the electronic brake and traction control module (EBTCM) assembly bracket nuts (1).

  20. Remove the EBTCM assembly.
  21. GM2739969

    Remove the EBTCM assembly bracket bolt (1).

  22. Carefully separate the EBTCM assembly from the bracket.