Ford P0370 OBD-II Trouble Code Definition: P0370 Timing Reference High Resolution Signal A Malfunction P0370 Ford OBD-II Trouble CodeDescription: OBD Trouble Code P0370 Timing Reference High Resolution Signal “A” What does the code mean? OBD-ii Code P0370 definition: The optical sensor provides a high resolution signal to the Powertrain Control Module (PCM) by counting pulses on […]