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.

1. Prepare electronic brake control module for replacement. Refer to Control Module References Control Module References.

2. Turn the ignition to the OFF position.





Note:
Do NOT disconnect engine coolant hoses.

3. Remove the radiator surge tank clip (2).

4. Remove the radiator surge tank (1).

Position the radiator surge tank (1) aside.

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.

5. Disconnect the electrical connector from the EBCM/EBTCM.





Note:
Cap the brake pipe fittings to prevent brake fluid loss and contamination.

6. Remove the 6 brake pipes (1, 2) from the BPMV.





7. Remove the 2 BPMV bracket bolts (2).

8. Remove the BPMV bracket assembly (1).





9. Remove the 3 BPMV bracket bolts.

10. Remove the BPMV (2).

11. Remove the BPMV insulator (1) from the BPMV bracket (3).

Installation 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.





1. Install the BPMV insulator (1) to the BPMV bracket (3).

2. Install the BPMV (2).

Caution:
Refer to Fastener Caution Fastener Caution.

3. Install the 3 BPMV bracket bolts (4) and tighten to 10 Nm(89 lb in).





4. Install the BPMV bracket assembly (1).

5. Install the 2 BPMV bracket bolts (2) and tighten to 20 Nm(15 lb ft).





6. Install the 6 brake pipes (1, 2) to the BPMV and tighten to 18 Nm(14 lb ft).

7. Connect the electrical connector to the EBCM/EBTCM.





8. Install the radiator surge tank (1).

9. Install the radiator surge tank clip (2).

10. Program the EBCM. Refer to Electronic Brake Control Module Programming and Setup Testing and Inspection.

11. Perform the diagnostic system check - Vehicle. Refer to Diagnostic System Check - Vehicle Diagnostic System Check - Vehicle.

12. Calibrate the brake pressure modulator valve pressure sensor. Refer to Brake Pressure Modulator Valve Pressure Sensor Calibration Testing and Inspection.

Caution:
Only use products that comply with GM specifications and check manufacturer information respectively. We recommend the use of GM genuine products. Instructions must be followed at all times. The use of any type of fluid other than the recommended type of brake fluid, may cause contamination which could result in damage to the internal rubber seals and/or rubber linings of hydraulic brake system components.

13. 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).

14. Center the steering angle sensor. Refer to Steering Angle Sensor Centering Procedures.