B1B54 FIAT – 1st Row Passenger Seat Belt Sensor Circuit Low

B1B54 FIAT Possible Symptoms

Air Bag Warning Light ON

B1B54 FIAT Possible Causes

Faulty Passenger Seat Belt Buckle Switch,Passenger Seat Belt Buckle Switch harness is open or shorted,Passenger Seat Belt Buckle Switch circuit poor electrical connection,Faulty Occupant Restraint Controller (ORC)

B1B54 FIAT Description

When powered, the Occupant Restraint Controller (ORC) sends a test current across the Passenger Seat Belt Buckle Switch circuits every 100 ms to verify the integrity of the switch and wiring. The front seat belt switches cannot be adjusted or repaired and, if ineffective or damaged, the entire front seat belt buckle-half unit must be replaced. The airbag warning lamp will display in the instrument cluster for this fault. While the ignition on and the Occupant Restraint Controller (ORC) is configured for a Passenger Seat Belt Switch, the ORC checks the switch input current ranges. The ORC monitors the switch input current ranges at power up and continuously every 100ms with the ignition in on.