Ford P0389 OBD-II Trouble Code Definition: P0389 Crankshaft Position Sensor B Circuit Intermittent P0389 Ford OBD-II Trouble CodeDescription: OBD Trouble Code P0389 Crankshaft Position Sensor “B” Circuit Intermittent What does the code mean? OBD-ii Code P0389 definition: The optical sensor provides a high resolution signal to the Powertrain Control Module (PCM) by counting pulses on the […]