B1BB5 Code: Meaning, Causes, and Symptoms | OBD2 Codes

B1BB5 – Passenger Air Bag Disable Switch Circuit Open

 

B1BB5 Possible Symptoms

 

Air Bag Warning Light ON

 

B1BB5 Possible Causes

 

Faulty Passenger Air Bag Disable Switch,Passenger Air Bag Disable Switch harness is open or shorted,Passenger Air Bag Disable Switch circuit poor electrical connection,Faulty Occupant Restraint Controller (ORC)

 

B1BB5 Description

 

When the ignition is on, the Passenger Airbag MUX Switch Sense circuit supplies a 3 to 10 ms pulse every 100 ms across the On or Off switch resistor to the Passenger Airbag MUX Switch Return circuit. The code will set if the Occupant Restraint Controller (ORC) senses an open or high resistance on the Passenger Airbag MUX Switch Sense circuit or Passenger Airbag MUX Switch Return circuit.