Electronic Brake Control Module Replacement with LC3

1. Thoroughly clean the electronic brake control module (EBCM) to brake pressure modulator valve (BPMV) area of any dirt or contaminants.
2. Remove the BPMV. Refer to Brake Pressure Modulator Valve Replacement .



3. Remove the 4 EBCM bolts.
4. Separate the EBCM (1) from the BPMV (2) by carefully pulling apart.
5. Ensure the motor connector (3) withdraws with the EBCM.

1. Clean the sealing surface of the BPMV with denatured alcohol, or equivalent, and a clean shop cloth.
2. Ensure the motor connector (3) is in place on the EBCM (1).
3. Install the EBCM to the BPMV. Use care when aligning the EBCM (1) to the BPMV electrical terminals (2).

Notice: Refer to Fastener Notice in the Preface section.

4. Install the 4 EBCM bolts. Tighten the bolts in an X pattern.

Tighten

•	First pass: Tighten the bolts to 3 N·m (27 lb in).

•	Second pass: Tighten the bolts to 6 N·m (52 lb in).

5. Install the BPMV. Refer to Brake Pressure Modulator Valve Replacement .
6. If installing a replacement EBCM, program the EBCM. Refer to Control Module References .
7. Perform the Diagnostic System Check - Vehicle .

Electronic Brake Control Module Replacement with LH2

Notice: Always connect or disconnect the wiring harness connector from the EBCM/EBTCM with the ignition switch in the OFF position. Failure to observe this precaution could result in damage to the EBCM/EBTCM.

Important: 

1. Place the ignition switch into OFF mode . Do NOT place the ignition switch into ignition ON engine OFF mode.
2. Wait for a minimum of 2 minutes to allow the high-speed LAN control modules to deactivate.
3. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection .
4. Thoroughly clean the electronic brake control module (EBCM) to brake pressure modulator valve (BPMV) area of any dirt or contaminants.
5. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .



6. Remove the two BPMV bracket bolts to improve access to the EBCM and connector.
7. Support the ABS modulator assembly.
8. Disconnect the electrical connector from the brake fluid pressure sensor.



9. Depress the lock tab and release the cam (2) to disconnect the electrical connector from the EBCM (3).



10. Remove the 4 EBCM-to-BPMV retaining bolts.
11. Separate the EBCM (1) from the BPMV (2) by carefully pulling apart.

1. Clean the sealing surface of the BPMV with denatured alcohol, or equivalent, and a clean shop cloth.
2. Ensure the motor connector (3) is in place on the EBCM (1).
3. Install the EBCM to the BPMV. Use care when aligning the EBCM (1) to the BPMV electrical terminals (2).

Notice: Refer to Fastener Notice in the Preface section.

4. Install the 4 EBCM bolts. Tighten the bolts in a criss-cross pattern.

Tighten

•	First pass: Tighten the bolts to 3 N·m (27 lb in).

•	Second pass: Tighten the bolts to 6 N·m (52 lb in).




5. Connect the electrical connector to the EBCM (3). Ensure the cam (2) is secured by the lock tab.
6. Connect the electrical connector to the brake fluid pressure sensor.



7. Install the two BPMV bracket bolts.

Tighten
Tighten the bolts to 27 N·m (20 lb ft).

8. Lower the vehicle.
9. Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection .
10. If a new EBCM was installed, the EBCM must be programmed. Refer to Service Programming System (SPS) .
11. Perform the Diagnostic System Check - Vehicle .
12. Refer to Control Module References for programming and setup information.