Suburban 1/2 Ton 2WD V8-5.3L VIN T (2004)
Hydraulic Control Assembly - Antilock Brakes: Service and Repair
(W/O JL4)
Brake Pressure Modulator Valve (BPMV) Replacement (W/O JL4)
Removal Procedure
Caution: Refer to Brake Fluid Irritant in Service Precautions.
Notice: Refer to Brake Fluid Effects on Paint and Electrical Components in Service Precautions.
Important: The area around the Electric Hydraulic Control Unit (EHCU) MUST be free from loose dirt to prevent contamination of disassembled
ABS components.
1. Thoroughly wash all contaminants from around the EHCU.
2. Disconnect the 3 electrical harness connectors from the electronic brake control module (EBCM) (1).
Important: Make sure that brake lines are tagged and kept in order for proper reassembly.
3. Disconnect the brake lines from the Brake Pressure Modulator Valve (BPMV) (2).
4. Remove the bolts (4) securing the EHCU mounting bracket (3) to the frame rail (5).
5. Remove the EHCU from the vehicle.
6. Remove the bolts (4) securing the BPMV (1) to the EHCU mounting bracket (3).
7. Disconnect the 2 way ABS pump motor connector.
8. Remove the 4 T-25 TORX bolts from the EBCM (2).
9. Remove the EBCM (2) from the BPMV (1). Removal may require a light amount of force.
Important: Do not use a tool to pry the EBCM or the BPMV. Excessive force will damage the EBCM.
