Normal Operation
WARNING: This page is about a different car, the 2006 Mercury Grand Marquis and 2006 Ford Crown Victoria. However, it is still accessible from the selected car via links, so may be relevant.
As part of the SRS, the safety belt buckles are equipped with Hall-effect switches. The safety belt buckle switch indicates to the restraints control module (RCM) whether the safety belt is buckled or unbuckled. Refer to AIR BAG AND SAFETY BELT PRETENSIONER SUPPLEMENTAL RESTRAINT SYSTEM (SRS) .
The RCM checks the driver safety belt buckle switch circuits for faults. If the RCM detects a short to ground fault, it will store DTC B2434 in memory, flash LFC 7-1 on the air bag indicator and the secondary air bag warning chime will be activated.