Brake Pressure Modulator Valve Replacement

Brake Pressure Modulator Valve Replacement
Warning: Refer to Brake Fluid Irritant Warning (Brake Fluid Irritant Warning).


Caution: Refer to Brake Fluid Effects on Paint and Electrical Components Caution (Vehicle Damage Warnings).

Caution: 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.

Removal Procedure




1. Turn the ignition switch to the OFF position.
2. Clean the brake pressure modulator valve (BPMV) pipe fitting areas of any accumulated dirt and foreign material.
3. Disconnect the electrical connector from the electronic brake control module (EBCM).
4. Place a shop towel under the BPMV to catch any brake fluid loss.
5. Disconnect the RF brake pipe fitting (1).
Cap the brake pipe fitting and plug the BPMV outlet port to prevent brake fluid loss and contamination.




6. Disconnect the LR brake pipe fitting (1).
Cap the brake pipe fitting and plug the BPMV outlet port to prevent brake fluid loss and contamination.




7. Disconnect the RR brake pipe fitting (1).
Cap the brake pipe fitting and plug the BPMV outlet port to prevent brake fluid loss and contamination.




8. Disconnect the LF brake pipe fitting (1).
Cap the brake pipe fitting and plug the BPMV outlet port to prevent brake fluid loss and contamination.




9. Disconnect the master cylinder primary brake pipe fitting (1).
Cap the brake pipe fitting and plug the BPMV inlet port to prevent brake fluid loss and contamination.




10. Disconnect the master cylinder secondary brake pipe fitting (1).
Cap the brake pipe fitting and plug the BPMV inlet port to prevent brake fluid loss and contamination.




11. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle (Service and Repair).
12. Remove the left front tire and wheel assembly. Refer to Tire and Wheel Removal and Installation (Service and Repair).
13. Remove the 3 BPMV bracket nuts (1).
14. Remove the BPMV and bracket assembly.




15. Remove the BPMV bolt (1).




16. Remove the BPMV from the bracket (1).
17. Inspect the BPMV bracket insulator for damage and replace, if necessary.
18. If installing a new BPMV, remove the EBCM. Refer to Electronic Brake Control Module Replacement (Service and Repair).

Installation Procedure

Note: When installing a new BPMV, do NOT remove the shipping plugs from the pipe ports until after installation into the vehicle.

1. Install the EBCM, if removed. Refer to Electronic Brake Control Module Replacement (Service and Repair).




2. Install the BPMV to the bracket (1).

Caution: Refer to Fastener Caution (Fastener Caution).




3. Install the BPMV bolt (1).

Tighten the bolt to 10 Nm (89 lb in).




4. Install the BPMV and bracket assembly.
5. Install the 3 BPMV bracket nuts (1).

Tighten the nuts to 10 Nm (89 lb in).

6. Install the left front tire and wheel assembly. Refer to Tire and Wheel Removal and Installation (Service and Repair).




7. Connect the master cylinder secondary brake pipe fitting (1).

Tighten the fitting to 20 Nm (15 lb ft).




8. Connect the master cylinder primary brake pipe fitting (1).

Tighten the fitting to 20 Nm (15 lb ft).




9. Connect the LF brake pipe fitting (1).

Tighten the fitting to 20 Nm (15 lb ft).




10. Connect the RR brake pipe fitting (1).

Tighten the fitting to 20 Nm (15 lb ft).




11. Connect the LR brake pipe fitting (1).

Tighten the fitting to 20 Nm (15 lb ft).




12. Connect the RF brake pipe fitting (1).

Tighten the fitting to 20 Nm (15 lb ft).

Note: Ensure the electrical connector is correctly inserted into the EBCM prior to placing the locking lever into position. Failure to make a proper connection may cause communication problems with the module.

13. Connect the EBCM electrical connector.
14. Bleed the hydraulic brake system. Refer to Hydraulic Brake System Bleeding (Manual) (Service and Repair)Hydraulic Brake System Bleeding (Pressure) (Service and Repair).

Note: Place the ignition switch in the ON position. Do not start the engine.

15. Perform the Diagnostic System Check - Vehicle (Initial Inspection and Diagnostic Overview).
16. Observe the feel of the brake pedal after performing the diagnostic system check. If the pedal now feels spongy, air may have been in the secondary circuit of the brake modulator assembly, which may have been introduced into the primary circuit. If the pedal feels spongy, perform the Antilock Brake System Automated Bleed Procedure (Service and Repair).