B1684 Code: Meaning, Causes, and Symptoms | OBD2 Codes

B1684 – Mirror Driver/Passenger Switch Circuit Open


B1684 Possible Symptoms


Engine Light ON (or Service Engine Soon Warning Light)


B1684 Possible Causes


Faulty Mirror Driver/Passenger Switch,Mirror Driver/Passenger Switch harness is open or shorted,Mirror Driver/Passenger Switch circuit poor electrical connection,Faulty Body Control Module (BCM)


B1684 Description


The Body Control Module (BCM) monitors the Mirror Driver/Passenger Switch. The BCM sets the OBDII code when the Mirror Driver/Passenger Switch is not to factory specifications.