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.