B1939 Code: Meaning, Causes, and Symptoms | OBD2 Codes
B1939 – Air Bag Passenger Pressure Switch Circuit Short To Ground Fault
B1939 Possible Symptoms
Air Bag Warning Light ON
B1939 Possible Causes
Faulty Air Bag Passenger Pressure Switch,Air Bag Passenger Pressure Switch harness is open or shorted,Air Bag Passenger Pressure Switch circuit poor electrical connection,Faulty Restraint Control Module (RCM)
B1939 Description
The Restraints Control Module (RCM) monitors the Air Bag Passenger Pressure Switch. The RCM sets the OBDII code when the Air Bag Passenger Pressure Switch is not to factory specifications.