P0839 DODGE – Four Wheel Drive Switch Circuit High

P0839 DODGE Possible Symptoms

Engine Light ON (or Service Engine Soon Warning Light)

P0839 DODGE Possible Causes

Faulty Four Wheel Drive Switch,Four Wheel Drive Switch harness is open or shorted,Four Wheel Drive Switch circuit poor electrical connection

P0839 DODGE Description

The Transmission Control Module (TCM) monitors the Four Wheel Drive Switch Circuit signal. the TCM sets the OBDII code when the Four Wheel Drive Switch Circuit is not to factory specifications.