Test V: Right Seat Belt Buckle Circuit Resistance Out Of Range (DTC B2439): 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 right seat belt circuits for faults. If RCM detects a resistance out of range fault, it will store Diagnostic Trouble Code (DTC) B2439 in memory and flash Code 7-6 on AIR BAG warning light