Ford P0403 OBD-II Trouble Code Definition: P0403 Exhaust Gas Recirculation Control Circuit P0403 Ford OBD-II Trouble CodeDescription: OBD Trouble Code P0403 Exhaust Gas Recirculation Control Circuit What does the code mean? OBD-ii Code P0403 definition: The Exhaust Gas Recirculation (EGR) system is controlled by a vacuum solenoid. The solenoid is supplied ignition voltage. The Powertrain Control […]