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