Ford P0598 OBD-II Trouble Code Definition: P0598 Thermostat Heater Control Circuit Low P0598 Ford OBD-II Trouble CodeDescription: OBD Trouble Code P0598 Thermostat Heater Control Circuit Low What does the code mean? OBD-ii Code P0598 definition: Causes Causes of the OBD-II code P0598 – Open or short thermostat heather control circuit – Poor thermostat heather control circuit […]