FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
Courtesy of Operation CHARM: Car repair manuals for everyone.

Test N: DTC B2432 - Driver Safety Belt Buckle Switch Circuit Open

PINPOINT TEST N: DTC B2432 - DRIVER SAFETY BELT BUCKLE SWITCH CIRCUIT OPEN


N1-N2:






N2-N4:






N5-N7:






Lamp Fault Codes (LFCs)







The lamp fault code (LFC) indicates the specific fault associated with diagnostic trouble code (DTC) B2432.

Normal Operation
As part of the SRS, the safety belt buckles are equipped with Hall-effect switches. The safety belt buckle switches indicate to the restraints control module (RCM) whether the safety belts are buckled or unbuckled.

The RCM checks the driver safety belt buckle switch circuits for faults. If the RCM detects an open circuit, it will store diagnostic trouble code (DTC) B2432 in memory and flash lamp fault code (LFC) 5-1 on the air bag indicator.

Possible Causes
A driver safety belt buckle switch open circuit fault can be caused by:
- wiring, terminals or connectors.
- a faulty driver safety belt buckle switch.
- a faulted RCM.