Electronic Brake Control Module (EBCM)

Antilock Brake System

Electronic Brake Control Module (EBCM) Replacement (w/o JL4)

Removal Procedure

Important: After installation, calibrate the new EBCM to the tire size that is appropriate to the vehicle.

Caution: Refer to Battery Disconnect Caution in Cautions and Notices.

1. Disconnect the negative battery cable.
2. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.






Important: The area around the EHCU MUST be free from loose dirt to prevent contamination of disassembled ABS components.

3. Thoroughly wash all contaminants from around the EHCU (1).
4. Disconnect the electrical connectors from the EBCM.
5. Loosen or remove 3 bolts (4) securing the EHCU mounting bracket (3) to the frame rail (5).






6. Gently move the EHCU down enough to remove the four mounting screws that fasten the EBCM (2) to the BPMV (1).
7. Remove the EBCM (2) from the BPMV (1). Removal may require a light amount of force.
8. Clean the BPMV to EBCM mounting surfaces with a clean cloth.

Installation Procedure

Important: Do not reuse the old mounting screws. Always install new mounting screws with the new EBCM.

Important: Do not use RTV or any other type of sealant on the EBCM gasket or mating surfaces.

1. Install the EBCM (2) on to the BPMV (1).

Note: Refer to Fastener Notice in Cautions and Notices.

2. Install the four new screws in the EBCM (2).
- Tighten the four screws to 5 N.m (39 lb in) in an X-pattern.






3. Install or tighten three EHCU bracket-mounting bolts (4).
- Tighten the EHCU bracket mounting bolts to 25 N.m (18 lb ft).
4. Connect the electrical connectors to the EBCM (1).
5. Lower the vehicle.
6. Connect the negative battery cable.
7. Revise the tire calibration using the Scan Tool Tire Size Calibration function.
8. Return to Diagnostic Starting Point - Antilock Brake System .