Circuit Description
WARNING: This page is about a different car, the 2000 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.
DTC sets when BCM detects an internal open or short to ground in column lock circuit ("A" or "B"), or if there is an open in BCM battery circuit from BCM 2 fuse No. 23 (10-amp). Condition must be present for 0.1 second.