Test S: LFC 52/DTC B2692 - Passenger Safety Belt Buckle Switch Circuit Fault

PINPOINT TEST S: LFC 52/DTC B2692 - PASSENGER SAFETY BELT BUCKLE SWITCH CIRCUIT FAULT

S1-S2:

S2-S3:

S4-S6:

S7-S9:

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

The RCM checks the passenger safety belt buckle switch circuits for faults. If the RCM detects an open circuit or short to voltage fault, it will store diagnostic trouble code (DTC) B2692 in memory and flash lamp fault code (LFC) 52 (or higher priority code if one exists) on the air bag indicator.

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