Electronic Brake Control Module Replacement (JH6, JH7)

Fig 1: View Of Electronic Brake Control Module & Screws

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
NOTE: 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. Preliminary Procedures Turn the ignition switch to the OFF position. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle . Remove any dirt and debris from the area of the brake pressure modulator valve (BPMV)/electronic brake control module (EBCM) assembly.
1	EBCM to BPMV Screw (Qty: 4) NOTE: Refer to Fastener Notice . Procedure Discard the EBCM to BPMV screws. Install new EBCM to BPMV screws. Tighten the EBCM to BPMV screws in an X pattern. Tighten: 3 N.m (27 lb in)
2	Electronic Brake Control Module (EBCM) Procedure Disconnect the EBCM electrical connector. Carefully pull the EBCM away from the BPMV. Do not force the components apart. Clean the EBCM to BPMV sealing surfaces with denatured alcohol and allow to dry. Program the EBCM. Refer to Control Module References . Bleed the antilock brake system. Refer to Antilock Brake System Automated Bleed Procedure (W/O JL4) or Antilock Brake System Automated Bleed Procedure (W/JL4) .

Callout

Component Name

NOTE: 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.

Preliminary Procedures

Turn the ignition switch to the OFF position.
Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
Remove any dirt and debris from the area of the brake pressure modulator valve (BPMV)/electronic brake control module (EBCM) assembly.

EBCM to BPMV Screw (Qty: 4)

NOTE: Refer to Fastener Notice .

Procedure

Discard the EBCM to BPMV screws.
Install new EBCM to BPMV screws.
Tighten the EBCM to BPMV screws in an X pattern.

Tighten: 3 N.m (27 lb in)

Electronic Brake Control Module (EBCM)

Procedure

Disconnect the EBCM electrical connector.
Carefully pull the EBCM away from the BPMV. Do not force the components apart.
Clean the EBCM to BPMV sealing surfaces with denatured alcohol and allow to dry.
Program the EBCM. Refer to Control Module References .
Bleed the antilock brake system. Refer to Antilock Brake System Automated Bleed Procedure (W/O JL4) or Antilock Brake System Automated Bleed Procedure (W/JL4) .