Description: This is the genuine Ford Module - Door Lock And Alarm, part number BC2Z-15604-D. You might know it as a control module, anti-theft alarm control unit, or body control module — they all refer to the same part. It replaces the older part numbers AC2Z-15604-A, AC2Z-15604-D, and BC2Z-15604-A. If any of those show up on your parts diagram or an old invoice, this is the current replacement. We check every order against your VIN, so you get the right part the first time.