DTC P0339: Crankshaft Position (CKP) Sensor Intermittent Interruption: General Description

The crankshaft position (CKP) sensor consists of a rotor and a pick-up coil that detects rotor position. When the engine starts, the rotor turns and the magnetic flux in the pick-up coil changes. The changes of magnetic flux are converted into pulsing signals to the engine control module (ECM). The CKP sensor detects injection/ignition timing for each cylinder and the engine speed. If an abnormal amount of pulsing signals from the CKP sensor signals are output, a malfunction is detected and a DTC is stored.