Brake Pressure Modulator Valve Replacement

Brake Pressure Modulator Valve Replacement

Removal Procedure

Warning:
Refer to Brake Fluid Irritant Warning Brake Fluid Irritant Warning.


Caution:
Refer to Brake Fluid Effects on Paint and Electrical Components Caution Brake Fluid Effects on Paint and Electrical Components Caution.

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.

1. Turn the ignition switch to the OFF position.

2. Remove the air cleaner assembly. Refer to Air Cleaner Assembly Replacement Service and Repair.





3. Disconnect the electronic brake control module (EBCM) electrical connector (1) by lifting the locking tabs.





4. Disconnect the master cylinder inlet brake pipe fittings (1).

Cap the brake pipe fittings and plug the brake pressure modulator valve (BPMV) inlet ports to prevent brake fluid loss and contamination.





5. Disconnect the BPMV outlet port front brake pipe fittings (1).

Cap the brake pipe fittings and plug the BPMV outlet ports to prevent brake fluid loss and contamination.





6. Disconnect the BPMV outlet port rear brake pipe fittings (1).

Cap the brake pipe fittings and plug the BPMV outlet ports to prevent brake fluid loss and contamination.





7. Remove the 2 BPMV bracket nuts (1).

8. Remove the BPMV from the vehicle.





9. Remove the 2 BPMV insulator nuts and washers.





10. Carefully remove the BPMV from the bracket by pulling upward.

11. Remove the 2 BPMV insulators.

Inspect the insulators for damage and replace, if necessary.

12. Remove the lower BPMV insulator.

Inspect the insulator for damage and replace, if necessary.

Installation Procedure





1. Install the 2 BPMV insulators to the BPMV.

Denatured alcohol may be used as an assembly aid to install the insulators.

2. Install the lower BPMV insulator to the bracket.

Denatured alcohol may be used as an assembly aid to install the insulator.

3. Carefully install the BPMV to the bracket.

Denatured alcohol may be used as an assembly aid on the insulators to install the BPMV.





Caution:
Refer to Fastener Caution Fastener Caution.

4. Install the 2 BPMV insulator washers and the 2 nuts.

Tighten the nuts to 8 Nm (71 lb in).





5. Install the BPMV and bracket assembly to the frame rail.

6. Install the 2 BPMV bracket nuts (1).

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





7. Connect the BPMV outlet port rear brake pipe fittings (1).

Tighten the fittings to 17 Nm (13 lb ft).





8. Connect the BPMV outlet port front brake pipe fittings (1).

Tighten the fittings to 17 Nm (13 lb ft).





9. Connect the master cylinder inlet brake pipe fittings (1).

Tighten the fittings to 25 Nm (18 lb ft).





10. Connect the EBCM electrical connector (1).

11. A new BPMV comes with both the primary and secondary circuits pre-filled with brake fluid. As long as the ignition key has not been cycled, only a base brake bleed is necessary.

Bleed the hydraulic brake system. Refer to Hydraulic Brake System Bleeding (Manual) Hydraulic Brake System Bleeding (Manual)Hydraulic Brake System Bleeding (Pressure) Hydraulic Brake System Bleeding (Pressure).

12. Perform the Diagnostic System Check - Vehicle Diagnostic System Check - Vehicle.

13. Observe the brake pedal feel after performing the diagnostic system check. If the pedal now feels spongy, air may have been in, or may have been introduced into the primary circuit.

If the pedal feels spongy, perform the Antilock Brake System Automated Bleed Antilock Brake System Automated Bleed.

14. Install the air cleaner assembly. Refer to Air Cleaner Assembly Replacement Service and Repair.