Electronic Brake Control Module: Service and Repair

Electronic Brake Control Module (EBCM) Replacement

Caution: Refer to Brake Fluid Irritant Caution in Service Precautions.

Notice: Refer to Brake Fluid Effects on Paint and Electrical Components Notice in Service Precautions.

Removal Procedure





1. Turn OFF the ignition.
2. Raise the vehicle. Refer to Vehicle Lifting.
3. Remove the left front wheel.
4. Remove the left front fascia extension.

5. Important: The area around the electronic brake control module (EBCM) must be free from dirt to prevent contamination of disassembled antilock brake system (ABS) components.

Thoroughly wash all contaminants from and around the EBCM.
6. Remove the EBCM connector position assurance (2) from the EBCM electrical connector (1).
7. Rotate the EBCM connector tab up to the unlocked position.

8. Notice: To prevent equipment damage, never connect or disconnect the wiring harness connection from the EBCM with the ignition switch in the ON position.

Disconnect the EBCM electrical connector (1) from the EBCM (4).





9. Disconnect the brake pressure modulator valve (BPMV) pump motor harness pigtail electrical connector (2) from the EBCM (3).





10. Remove the 6 EBCM to BPMV screws (2).





11. Clean the surface of the EBCM/BPMV assembly.

12. Important: The EBCM cannot be repaired. If faulty, the unit must be replaced.

Separate the EBCM (2) from the BPMV (1).

Installation Procedure





1. Clean the seal surface of the BPMV.
2. Install the EBCM (2) to the BPMV (1).





3. Notice: Refer to Fastener Notice in in Service Precautions.

Install the 6 EBCM to BPMV screws (2).
Tighten the 6 screws to 3.2 Nm (28 inch lbs.).





4. Connect the BPMV pump motor harness pigtail electrical connector (2) to the EBCM (3).





5. Notice: To prevent equipment damage, never connect or disconnect the wiring harness connection from the EBCM with the ignition switch in the ON position.

Connect the EBCM electrical connector (1) to the EBCM (4).
6. Rotate the EBCM connector tab (2) down to the locked position.





7. Install the EBCM connector position assurance (2) to the EBCM electrical connector (1).
8. Install the left front fascia extension.
9. Install the left front wheel.
10. Lower the vehicle. Refer to Vehicle Lifting.

11. Important: An unprogrammed EBCM will result in the following conditions:
^ Inoperative or poorly functioning dynamic rear proportioning (DRP)/ABS/traction control system (TCS)/vehicle stability enhancement system (VSES)/variable effort steering (VES), if equipped
^ Set DTC C1248 EBCM Turned On the Red Brake Warning Indicator
^ Set DTC C1255m3 EBCM Internal Malfunction

If a replacement EBCM is being installed, it must be programmed using the latest software matching the vehicle.
12. Use the scan tool in order to clear the DTC's.
13. Perform the ABS Diagnostic System Check. Refer to Diagnostic System Check - Vehicle. Diagnostic System Check - Vehicle