OEM 2005 Buick Park Avenue ABS Control Module

2005 Buick Park Avenue ABS Control Module Parts and Q&A

• Q: How to replace the ABS Control Module on 2005 Buick Park Avenue?

  A: Before starting an ABS Control Module (ABSCM) replacement procedure the ignition must be turned off while simultaneously raising and supporting the vehicle. Begin by removing the tire and wheel from the left front position and then separate the left front fascia extension. Clean away loose dirt from the abscm area so disassembled antilock brake system components stay contamination-free and then wipe all abscm mounting space clean. Remove the abscm connector position assurance from its electrical connector then turn the abscm connector tab until it unlocks its position. Connectors between the abscm and wiring harness should never operate when the Ignition Switch is in on position because it would damage equipment. Remove the abscm electrical connector and brake pressure modulator valve (BPMV) electrical connector which ABS Control Module (ABSCM) connects to. Clean the surface that connects the abscm with the bpmv after removing all 6 abscm to bpmv screws. Replacement of the abscm is needed whenever it proves faulty because this unit is beyond repair. The abscm needs to be detached from the bpmv. Before abscm installation you must wash the sealing area of the bpmv then position the abscm onto the bpmv. Insert the 6 abscm to bpmv screws then tighten each one to 3.2 nm (28 inch lbs.). The next step is connecting the electrical connector of bpmv to the abscm while keeping the Ignition Switch off to avoid damaging equipment. The abscm connector tab should be rotated downward until it reaches a locked position before you install the abscm connector position assurance onto the abscm electrical connector. After reinstalling the left front fascia extension the team should install the left front wheel followed by lowering the vehicle. Unprogrammed abscm can result in system malfunctions that affect dynamic rear proportioning (DRP) among other systems along with setting dtc c1248 or c1255. All new abscms need programming with the latest software which matches the vehicle specifications. After using a diagnostic tool to clear the dtcs proceed with hydraulic brake system filling, bleeding and autonomic bleeding before performing the abs diagnostic system check.