Hummer H2. Manual — part 769

Fig. 6: EBCM & BPMV
Courtesy of GENERAL MOTORS CORP.

1. Connect the pump motor connector (3) to the bottom of the EBCM.

2. Install the EBCM (1) to the BPMV (4).

3. Install the 6 retainers (2) which connect the EBCM to the BPMV.

Tighten: Tighten the retainers to 2.9 N.m (26 lb in).

4. Connect the EBCM harness connector.

5. Lower the vehicle.

6. Turn the ignition switch to the RUN position. Do NOT start the engine.

NOTE:

Refer to Fastener Notice in Cautions and Notices.

2004 Hummer H2

2004 BRAKES Anti-Lock Brake System - Hummer H2

7. Perform the diagnostic system check. Refer to Diagnostic System Check - ABS .

BRAKE PRESSURE MODULATOR VALVE (BPMV) REPLACEMENT

Removal Procedure

1. Turn the ignition switch to the OFF position.

2. Raise the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.

3. Disconnect the EBCM harness connector.

CAUTION: Refer to Brake Fluid Irritant Caution in Cautions and Notices.

NOTE:

Refer to Brake Fluid Effects on Paint and Electrical Components Notice in
Cautions and Notices.

CAUTION: For safety reasons, the Brake Pressure Modulator Valve (BPMV) must not

be repaired, the complete unit must be replaced. With the exception of the
EBCM/EBTCM, no screws may be loosened. If screws are loosened, it will
not be possible to get the brake circuits leak-tight and personal injury may
result.

2004 Hummer H2

2004 BRAKES Anti-Lock Brake System - Hummer H2

Fig. 7: Right Front Brake Pipe & BPMV
Courtesy of GENERAL MOTORS CORP.

4. Disconnect the right front brake pipe (1) from the BPMV (2).

IMPORTANT: Note the locations of the brake pipes in order to aid in installation.

2004 Hummer H2

2004 BRAKES Anti-Lock Brake System - Hummer H2

Fig. 8: Rear Brake Pipes & BPMV
Courtesy of GENERAL MOTORS CORP.

5. Disconnect the rear brake pipes (1) from the BPMV (2).

2004 Hummer H2

2004 BRAKES Anti-Lock Brake System - Hummer H2