Electronic Brake Control Module: Service and Repair
REMOVAL PROCEDUREIMPORTANT: After installation, calibrate the new EBCM to the tire size that is appropriate to the vehicle. Refer to Tire Size Calibration portion of ABS System Description.
CAUTION: Refer to Battery Disconnect Caution in Service Precautions.
1. Negative Battery Cable.
IMPORTANT: Thoroughly wash all contaminants from around the EHCU (1). The area around the EHCU MUST be free from loose dirt to prevent contamination of disassembled ABS components.
2. Disconnect the electrical connectors from the EBCM.
3. Loosen or Remove 3 bolts (4) securing the EHCU mounting bracket (3) to the frame rail (5).
4. Gently move the EHCU down enough to remove the four T 25 Torx(R) mounting screws that fasten the EBCM (2) to the BPMV (1).
5. Remove the EBCM (2) from the BPMV (1). Removal may require a light amount of force.
IMPORTANT: Do not use a tool to pry the EBCM or the BPMV Excessive force will damage the EBCM.
6. 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 EBCM (2) on to the BPMV (1).
NOTICE: Refer to Fastener Notice in Service Precautions.
2. Install the four new T-25 Torx(R) screws in the EBCM (2).
- Tighten the four T-25 Torx(R) screws to 5 Nm (39 inch lbs.) in an X-pattern.
3. Install or tighten three EHCU bracket mounting bolts
- Tighten the EHCU bracket mounting bolts to 25 Nm (18 foot lbs.).
4. Connect the electrical connectors to the EBCM.
CAUTION: Refer to Battery Disconnect Caution in Service Precautions.
5. Connect negative battery cable.
6. Revise the tire calibration using the Scan Tool Tire Size Calibration function. Refer to Scan Tool Diagnostics.
7. Return to ABS Diagnostic System Check.