GM Service Manual Online
For 1990-2009 cars only

Object Number: 1862947  Size: MF

Callout

Component Name

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

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

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.

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

BPMV Inlet Brake Pipe Fitting (Qty: 2)

Caution: Refer to Fastener Caution in the Preface section.

Procedure

Cap the brake pipe fitting to prevent brake fluid loss and contamination.

Tighten
With JL4: 32 N·m (24 lb ft)

Tighten
Without JL4: 25 N·m (18 lb ft)

2

Brake Pipe Fitting - Front Outlet (Qty: 2)

Procedure

Cap the brake pipe fitting to prevent brake fluid loss and contamination.

Tighten
18 N·m (13 lb ft)

3

Brake Pipe Fitting - Rear Outlet (With JL4: Qty: 2)

Brake Pipe Fitting - Rear Outlet (Without JL4: Qty: 1)

Procedure

Cap the brake pipe fitting 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 Bolt

Tighten
11 N·m (97 lb in)

6

BPMV Bracket

Procedure

Inspect the BPMV 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 Brake Pressure Modulator Valve 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.