Test N

PINPOINT TEST N: LFC 51/DTC B2434 - DRIVER SAFETY BELT BUCKLE SWITCH CIRCUIT SHORT TO GROUND

Test N1-N2:

Test N2-N5:

Test N6:

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

The restraints control module (RCM) checks the driver safety belt buckle switch circuits for faults. If the RCM detects a short to ground fault, it will store diagnostic trouble code (DTC) B2434 in memory and flash lamp fault code (LFC) 51 (or higher priority code if one exists) 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.