Hydraulic Control Assembly - Antilock Brakes: Service and Repair

Brake Pressure Modulator Valve Assembly Replacement

Removal Procedure




Warning: Refer to Battery Disconnect Warning (Battery Disconnect Warning).

1. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection (Service and Repair).
2. Disconnect the electronic brake control module (EBCM) connector (1).





Note: Take care not to allow air into the hydraulic unit or into the brake pipes from the master cylinder. If air gets into the hydraulic unit, it will require a bleeding procedure using a scan tool programmed for the ABS 5.3 system. As long as no air enters the hydraulic unit, a simple bleeding procedure is all the system will require.

3. Remove the brake pipes from the brake pressure modulator valve (BMPV) assembly.
4. Plug the brake pipes.
5. Loosen the mounting nuts (2) on the BPMV assembly (1).
6. Position the brake pipes aside far enough to allow for lifting the BPMV assembly from the mounting bracket. It may be necessary to loosen the brake pipes on the master cylinder to allow for moving those pipes out of the way.
7. Remove the BPMV assembly from the mounting bracket.

Installation Procedure





Caution: Refer to Fastener Caution (Fastener Caution).

1. Install the BPMV assembly (1) into the mounting bracket. Secure with two nuts (2) and tighten to 15 Nm (11 lb ft).
2. Remove the plugs from the brake pipes and connect the brake pipes to the BPMV assembly (1) and tighten to 22 Nm (16 lb ft).




3. Connect the EBCM connector (1).
4. Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection (Service and Repair).
5. Bleed the brake system. Refer to Hydraulic Brake System Bleeding (Service and Repair).
6. Perform the Diagnostic System Check - Vehicle (Diagnostic System Check - Vehicle).
7. Refer to Control Module References (Programming and Relearning) for programming and setup information.