GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

Notice: 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.


    Object Number: 890987  Size: SH
  1. Turn the ignition switch to the OFF position.
  2. Clean the electronic brake control module (EBCM) to brake pressure modulator valve (BPMV) area of any accumulated dirt and foreign material.
  3. Disconnect the electrical connector from the EBCM.

  4. Object Number: 891773  Size: SH
  5. Remove the 4 EBCM-to-BPMV retaining bolts (1).

  6. Object Number: 891775  Size: SH
  7. Separate the EBCM (1) from the BPMV (2) by carefully pulling apart.

Installation Procedure


    Object Number: 891775  Size: SH
  1. Clean the sealing surface of the BPMV, with denatured alcohol and a clean shop cloth.
  2. Install the EBCM (1) to the BPMV (2). Use care when aligning the EBCM (1) to the BPMV electrical terminals (3).
  3. Notice: Refer to Fastener Notice in the Preface section.


    Object Number: 891773  Size: SH
  4. Install the 4 EBCM-to-BPMV retaining bolts (1). Tighten the bolts in a criss-cross pattern.
  5. Tighten
    Tighten the bolts to 3 N·m (27 lb in).


    Object Number: 890987  Size: SH
  6. Connect the electrical connector to the EBCM.
  7. If installing a replacement module, program the replacement module. Refer to Control Module References .
  8. Turn the ignition switch to the ON position. DO NOT start engine.
  9. Perform the Diagnostic System Check - Vehicle .