GM Service Manual Online
For 1990-2009 cars only

Brake Pressure Modulator Valve Replacement JD9, JF3, JF7


Object Number: 1848843  Size: MF

Callout

Component Name

Caution: Refer to Brake Fluid Irritant Caution in the Preface section.

Notice: Refer to Brake Fluid Effects on Paint and Electrical Components Notice in the Preface section.

Notice: 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.

Preliminary Procedures

  1. Turn the ignition switch to the OFF position.
  2. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
  3. Remove any dirt and debris from the area of the brake pressure modulator valve (BPMV) assembly.
  4. Disconnect the electronic brake control module (EBCM) electrical connector.

1

Master Cylinder Inlet Brake Pipe Fitting (Qty: 2)

Notice: Refer to Fastener Notice in the Preface section.

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

Tighten
18 N·m (13 lb ft)

2

Front Wheel Outlet Brake Pipe Fitting (Qty: 2)

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

Tighten
18 N·m (13 lb ft)

3

Rear Wheel Outlet Brake Pipe Fitting (Qty: 2)

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

Tighten
18 N·m (13 lb ft)

4

Brake Pressure Modulator Valve (BPMV) Bracket Bolt (Qty: 3)

Tip
It is not necessary to remove the bolts; loosen the bolts and slide the BPMV and bracket assembly toward the front of the vehicle to remove.

Tighten
22 N·m (16 lb ft)

5

BPMV Mounting Nut (Qty: 2)

Procedure

If removing the BPMV bracket from the BPMV, only loosen the mounting nuts.

Tighten
9 N·m (80 lb in)

6

BPMV Mounting Bracket

7

BPMV Assembly

Procedure

  1. If necessary, remove the EBCM from the BPMV. Refer to Electronic Brake Control Module Replacement .
  2. Carefully lift the BPMV upward and release the BPMV from the lower grommet. DO NOT pry on the underside of the BPMV.
  3. Bleed the BPMV. Refer to Antilock Brake System Automated Bleed Procedure .
  4. Calibrate the brake pressure sensor. Refer to Electronic Brake Control Module Programming and Setup .

Brake Pressure Modulator Valve Replacement JH6, JH7


Object Number: 1862947  Size: MF

Callout

Component Name

Caution: Refer to Brake Fluid Irritant Caution in the Preface section.

Notice: Refer to Brake Fluid Effects on Paint and Electrical Components Notice in the Preface section.

Notice: 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.

Preliminary Procedures

  1. Turn the ignition switch to the OFF position.
  2. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
  3. Remove any dirt and debris from the area of the brake pressure modulator valve (BPMV) assembly.
  4. Disconnect the electronic brake control module (EBCM) electrical connector.

1

Master Cylinder Inlet Brake Pipe Fitting (Qty: 2)

Notice: Refer to Fastener Notice in the Preface section.

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

Tighten
18 N·m (13 lb ft)

2

Front Wheel Outlet Brake Pipe Fitting (Qty: 2)

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

Tighten
18 N·m (13 lb ft)

3

Rear Wheel Outlet Brake Pipe Fitting

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

Tighten
18 N·m (13 lb ft)

4

Brake Pressure Modulator Valve (BPMV) Bracket Bolt (Qty: 3)

Tighten
22 N·m (16 lb ft)

5

BPMV Mounting Bolt

Tighten
11 N·m (97 lb in)

6

BPMV Mounting Bracket

Procedure

Inspect the BPMV mounting bracket grommet for damage and replace, if necessary.

7

BPMV Insulator (Qty: 2)

Procedure

Inspect the BPMV insulators for damage and replace, if necessary.

8

BPMV Assembly

Procedure

  1. If necessary, remove the EBCM from the BPMV. Refer to Electronic Brake Control Module Replacement .
  2. Bleed the antilock brake system. Refer to Antilock Brake System Automated Bleed Procedure .
  3. Calibrate the brake pressure sensor. Refer to Electronic Brake Control Module Programming and Setup .