B2390 Code: Meaning, Causes, and Symptoms | OBD2 Codes

B2390 – Mist Switch Circuit Low


B2390 Possible Symptoms


Engine Light ON (or Service Engine Soon Warning Light)


B2390 Possible Causes


Faulty Multifunction Switch,Multifunction Switch harness is open or shorted,Multifunction Switch circuit poor electrical connection,Faulty Cluster


B2390 Description


The Cluster monitors the Mist Switch Circuit. The Diagnostic Trouble Code (DTC) is set when the Cluster detects the Mist function inoperative.