Body Control Module (BCM): Removal
WARNING: This page is about a different car, the 1999 Cadillac Catera. However, it is still accessible from the selected car via links, so may be relevant.
Turn ignition switch to OFF position. Disconnect negative battery cable. Remove right hinge pillar trim finish panel. Gently separate retainer from BCM, and slide end of BCM out of retaining tabs. See Figure . Remove BCM. Disconnect electrical connectors.