Ford P0620 OBD-II Trouble Code Definition: P0620 Generator Control Circuit Malfunction P0620 Ford OBD-II Trouble CodeDescription: OBD Trouble Code P0620 Generator Control Circuit What does the code mean? OBD-ii Code P0620 definition: The PCM uses the generator turn on signal circuit to control the generator. A high side driver within the PCM allows the PCM to […]