Test O: Left Seat Belt Buckle Switch Circuit Open (DTC B2432): Description
WARNING: This page is about a different car, the 2004 Mercury Monterey and 2004 Ford Freestar. However, it is still accessible from the selected car via links, so may be relevant.
Restraints Control Module (RCM) checks left seat belt circuits for faults. If RCM detects an open circuit, it will store Diagnostic Trouble Code (DTC) B2432 in memory and flash Code 5-1 on AIR BAG warning light.