GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Remove the generator control module cover, if equipped. Refer to Generator Control Module Cover Replacement.

  2. Object Number: 927845  Size: SH
  3. Remove the transmission control module (TCM), if equipped, from the mounting bracket and position aside.

  4. Object Number: 927847  Size: SH
  5. Turn the ignition switch to the OFF position.
  6. Disconnect the electronic brake control module (EBCM) electrical connector.

  7. Object Number: 927841  Size: SH
  8. Loosen the 2 insulator nuts on the brake pressure modulator valve (BPMV) assembly.
  9. Without disconnecting the brake pipes, remove the bolts from the brake delay valve, if equipped. Refer to Brake Delay Valve Replacement.
  10. Carefully lift the brake modulator assembly just enough to clear the bracket, then support the assembly.

  11. Object Number: 890992  Size: SH
  12. Remove the brake pressure modulator assembly bracket mounting bolts.
  13. Remove the bracket from the vehicle.

Installation Procedure


    Object Number: 890992  Size: SH
  1. Install the BPMV assembly bracket to the vehicle.
  2. Notice: Refer to Fastener Notice in the Preface section.

  3. Install the brake pressure modulator assembly bracket mounting bolts and nut.
  4. Tighten
    Tighten the bolts and nut to 10 N·m (89 lb in).


    Object Number: 927841  Size: SH
  5. Install the brake modulator assembly to the bracket.
  6. Tighten the 2 brake pressure modulator assembly insulator nuts.
  7. Tighten
    Tighten the nuts to 10 N·m (89 lb in).

  8. Install the bolts to the brake delay valve, if equipped. Refer to Brake Delay Valve Replacement.

  9. Object Number: 927847  Size: SH
  10. Connect the EBCM electrical connector.

  11. Object Number: 927845  Size: SH
  12. Reposition the TCM, if equipped, to the mounting bracket.
  13. Install the generator control module cover, if equipped. Refer to Generator Control Module Cover Replacement.