Avalanche 2500 2WD V8-8.1L VIN G (2002)
Hydraulic Control Assembly - Antilock Brakes: Service and Repair
W/ JL4
Brake Pressure Modulator Valve (BPMV) Replacement (w/ JL4)
Removal Procedure
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 2 electrical harness connectors from the Electronic Brake Control Module (EBCM) (1).
3. Disconnect the electrical connector from the pressure accumulator switch.
4. Disconnect the electrical connector from the brake fluid pressure sensor.
Important: Make sure that brake lines are tagged and kept in order for proper reassembly.
