GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2004 🢒 TopKick C-Series (Conventional) C4/C5 🢒 Preface 🢒 Cautions and Notices 🢒 Electronic Brake Control Module Replacement

Removal Procedure
  1. Disconnect the battery negative cable. Refer to Battery Negative Cable Disconnection and Connection in Engine Electrical.
  2. Remove the electrical connector.
  3. Remove the bolts that fasten the electronic brake control module (EBCM) to the brake pressure modulator valve (BPMV).

    4. Notice: Do not use a tool to pry the EBCM from the BPMV. Excessive force will damage the EBCM.

  4. Remove the EBCM from the BPMV. Removal may require a light amount of force.
  5. Clean the BPMV with a clean, dry cloth.

Installation Procedure

Important: 

   • After installation, calibrate the new EBCM to the tire size wheelbase and Hydraboost or Hydramax Systems.
   • If the EBCM mounting bolts are corroded or damaged, do not reuse the old mounting bolts. Install new EBCM mounting bolts with the new EBCM.
   • Do not use room temperature vulcanizing (RTV) or any other type of sealant on the EBCM to BPMV mating surface.

  1. Install the EBCM to the BPMV.

    2. Notice: Refer to Fastener Notice in the Preface section.

  2. Install the EBCM bolts.

    3. Tighten
    Tighten the bolts to 5 N·m (44 lb in) in an X-pattern.

  3. Connect the electrical connectors to the EBCM.
  4. Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection in Engine Electrical.
  5. Revise the tire calibration wheelbase and Hydraboost or Hydramax System.