GM Service Manual Online
For 1990-2009 cars only

Electronic Brake Control Module Replacement HP7

Removal Procedure

Warning: Refer to Brake Fluid Irritant Warning in the Preface section.

Caution: Refer to Brake Fluid Effects on Paint and Electrical Components Caution in the Preface section.

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. Remove the battery. Refer to Battery Replacement.
  3. Without draining the coolant or removing the hoses, remove and position aside the radiator surge tank. Refer to Radiator Surge Tank Replacement.
  4. Clean the electronic brake control module (EBCM) to brake pressure modulator valve (BPMV) area of any dirt or debris.
  5. Disconnect the EBCM electrical connector by lifting the locking lever upward.
  6. Raise and support the vehicle to access the EBCM bolts. Refer to Lifting and Jacking the Vehicle.

  7. Object Number: 1873922  Size: SH
  8. Remove the 4 EBCM bolts (1).

  9. Object Number: 1873923  Size: SH
  10. Carefully pull the EBCM (1) from the BPMV.
  11. Do not pry the components apart.

  12. Remove the 12 EBCM seals, if necessary.

Installation Procedure


    Object Number: 1873923  Size: SH
  1. Install the EBCM seals, if removed.
  2. Install the EBCM (1) to the BPMV.
  3. Caution: Refer to Fastener Caution in the Preface section.


    Object Number: 1873922  Size: SH
  4. Install the 4 EBCM bolts (1) and tighten the bolts in a cross pattern and tighten to 3 N·m (27 lb in).
  5. Lower the vehicle.
  6. Install the radiator surge tank. Refer to Radiator Surge Tank Replacement.
  7. Install the battery. Refer to Battery Replacement.
  8. If installing a new EBCM, program the EBCM. Refer to Control Module References.
  9. Without starting the engine, place the ignition switch in the ON position.
  10. Perform the Diagnostic System Check - Vehicle.
  11. Observe the feel of the brake pedal after performing the diagnostic system check. If the pedal now feels spongy, air may have been in the secondary circuit of the brake modulator assembly, which may have been introduced into the primary circuit.
  12. If the pedal feels spongy, perform the Antilock Brake System Automated Bleed Procedure.