Removal Procedure
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.
- Turn the ignition switch
to the OFF position.
- Disengage the red locking tab from the connector (1).
- Push down lock tab (1) and then move sliding connector cover (2)
to the open position.
- Disconnect the EBCM/EBTCM harness connector.
Important: Note the locations of the brake pipes in order to aid in installation.
- Disconnect the wheel cylinder brake pipes (1) from the BPMV (2).
- Swing the four wheel cylinder brakes pipes out of the way only
after covering the open pipes to avoid dripping or being contaminated.
- Disconnect the master
cylinder brake pipes (2) from the BPMV (4).
- It is not necessary to remove the brake pipes (2) from the master
cylinder (1).
- Swing the two master cylinder brake pipes out of the way only
after covering the open pipes to avoid dripping or being contaminated.
- Disconnect the ground strap between the EBCM assembly and the
chasis.
- Remove the four bolts
(3) that connect the BPMV (1) to the mounting bracket (2).
Notice: When removing the brake pressure modulator valve, protect the vehicle
exterior from possible brake fluid spillage. Brake fluid can cause damage
to painted surfaces.
- Remove the BPMV and EBCM/EBTCM as an assembly (1) from the vehicle.
- Remove EBCM/EBTCM if replacing the BPMV only. Refer to
Electronic Brake Control Module/Electronic Brake and Track Control Module Replacement
.
Installation Procedure
- Install EBCM/EBTCM onto
the BPMV (1) if replacing the BPMV only. Refer to
Electronic Brake Control Module/Electronic Brake and Track Control Module Replacement
.
- Install BPMV and EBCM/EBTCM as an assembly (1) to the mounting
bracket (2).
- Install the four bolts (3) that connects the BPMV assembly (1)
to the mounting bracket (2).
Tighten
Tighten the four bolts (3) that connect the BPMV (1) to the mounting
bracket (2) to 10 N·m (7 lb. ft.).
- Reconnect the ground strap between the EBCM assembly and the chasis.
Important: If a new BPMV is being installed, remove the shipping plugs from the
valve openings during the next few steps when ready .
Caution: Make sure brake pipes are correctly connected to brake pressure modulator
valve. If brake pipes are switched by mistake, wheel lockup will occur and
personal injury may result. The only two ways this condition can be detected
are by using a Scan Tool or by doing an Antilock stop.
- Install the master cylinder brake pipes (2) into the BPMV (4).
Tighten
Tighten the master cylinder brake pipe fittings to 24 N·m
(18 lb ft).
- Install the wheel cylinder
brake pipes (1) on the BPMV (2).
Tighten
Tighten all four wheel cylinder brake pipe fittings to 24 N·m
(18 lb ft).
- Connect the EBCM/EBTCM
harness connector.
- Push down lock tab (1) and then move sliding connector cover (2)
back in home position to lock.
- Insert red locking tab back in place.
- When all procedures have been completed, the automated ABS bleed
procedure is required. Refer to
Antilock Brake System Automated Bleed Procedure
in this section.