FixVault
Home › Pontiac › 2001 › Aztek Base, AWD › Repair and Diagnosis › External Pages › Different car › Section 1350 (Antilock Brake System) › Repair Instructions › Brake Pressure Modulator Valve (BPMV) Replacement › Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2003 GMC Sierra, 2003 GMC Cab & Chassis Sierra, 2003 Chevrolet Silverado, and 2003 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION: Refer to BRAKE FLUID IRRITANT CAUTION .
CAUTION: Refer to BATTERY DISCONNECT CAUTION .
NOTE: Refer to BRAKE FLUID EFFECTS ON PAINT & ELECTRICAL COMPONENTS NOTICE .
  1. Remove the negative battery cable.
    IMPORTANT: The area around the EHCU MUST be free from loose dirt to prevent contamination of disassembled ABS components.
  2. Thoroughly wash all contaminants from around the EHCU.
  3. Disconnect the chassis electrical harness connectors from the EBCM.
    IMPORTANT: Make sure that brake lines are tagged and kept in order for proper reassembly.
  4. Disconnect 5 brake lines from the BPMV.
  5. Remove the bolts (4) securing the EHCU mounting bracket (3) to the frame rail (5).
  6. Remove the EHCU assembly (1) from the vehicle.
    7. Fig 1: Removing EHCU Assembly, EHCU Mounting Bracket & Bolts
    G01481832Courtesy of GENERAL MOTORS CORP.
  7. Remove the bolts (4) securing the BPMV mounting bracket (5) to the BPMV (3).
  8. Disconnect the 2 way ABS pump motor connector.
  9. Remove the bolts (1) from the EBCM (2).
    NOTE: Do not use a tool to pry the EBCM or the BPMV. Excessive force will damage the EBCM.
    IMPORTANT: Do not reuse the EBCM mounting bolts. Always install new bolts.
  10. Remove the EBCM (2) from the BPMV (3). Removal may require a light amount of force.
  11. Clean the EBCM to BPMV mounting surfaces with a clean cloth.
    Fig 2: Removing EBCM, BPMV, Mounting Bracket & Bolts
    G01481833Courtesy of GENERAL MOTORS CORP.
About FixVault