Ford P0538 OBD-II Trouble Code Definition: P0538 A/C Evaporator Temperature Circuit High Input P0538 Ford OBD-II Trouble CodeDescription: OBD Trouble Code P0538 A/C Evaporator Temperature Sensor Circuit High What does the code mean? OBD-ii Code P0538 definition: The PCM sources a low current 5 volts on the A/C Evaporator Temperature (ACET) sensor circuit. As the A/C […]