B1831 Code: Meaning, Causes, and Symptoms | OBD2 Codes
B1831 – Door Unlock Disarm Switch Circuit Open
B1831 Possible Symptoms
Engine Light ON (or Service Engine Soon Warning Light)
B1831 Possible Causes
Faulty Door Unlock Disarm Switch,Door Unlock Disarm Switch harness is open or shorted,Door Unlock Disarm Switch circuit poor electrical connection,Faulty Body Control Module (BCM)
B1831 Description
The Body Control Module (BCM) monitors the Door Unlock Disarm Switch. The BCM sets the OBDII code when the Door Unlock Disarm Switch is not to factory specifications.