B1439 Code: Meaning, Causes, and Symptoms | OBD2 Codes

B1439 – Wiper Mode Select Switch Circuit Open


B1439 Possible Symptoms


Engine Light ON (or Service Engine Soon Warning Light)


B1439 Possible Causes


Faulty Wiper Mode Select Switch,Wiper Mode Select Switch harness is open or shorted,Wiper Mode Select Switch circuit poor electrical connection,Faulty Body Control Module (BCM)


B1439 Description


The Body Control Module (BCM) monitors the Wiper Mode Select Switch. The BCM sets the OBDII code when the Wiper Mode Select Switch is not to factory specifications.