GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

    Caution: Unless directed otherwise, the ignition and start switch must be in the OFF or LOCK position, and all electrical loads must be OFF before servicing any electrical component. Disconnect the negative battery cable to prevent an electrical spark should a tool or equipment come in contact with an exposed electrical terminal. Failure to follow these precautions may result in personal injury and/or damage to the vehicle or its components.

  1. Disconnect the negative battery cable.

  2. Object Number: 581535  Size: SH
  3. Release the BCM wire harness retainer (3) from the BCM Bracket (4).
  4. Remove the BCM (1) from the BCM braket (4).

Installation Procedure


    Object Number: 581535  Size: SH
  1. Install the BCM (1) to the BCM bracket (4).
  2. Install the BCM wire harness retainer (3) to the BCM bracket (4).
  3. Caution: Unless directed otherwise, the ignition and start switch must be in the OFF or LOCK position, and all electrical loads must be OFF before servicing any electrical component. Disconnect the negative battery cable to prevent an electrical spark should a tool or equipment come in contact with an exposed electrical terminal. Failure to follow these precautions may result in personal injury and/or damage to the vehicle or its components.

  4. Connect the negative battery cable.
  5. Use the Tech 2 Scan Tool to reprogram the new BCM. Refer to Body Control Module (BCM) Programming/RPO Configuration .