Test S: LFC 51/DTC B2691 - Driver Safety Belt Buckle Switch Circuit Fault

PINPOINT TEST S: LFC 51/DTC B2691 - DRIVER SAFETY BELT BUCKLE SWITCH CIRCUIT FAULT

S1-S2:

S2-S4:

S4-S7:

S8:

Normal Operation
The restraints control module (RCM) checks the 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) B2691 in memory and flash lamp fault code (LFC) 51 (or higher priority code if 1 exists) on the air bag indicator.

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