Ford P0579 OBD-II Trouble Code Definition: P0579 Speed Control Switch 1 Performance Condition P0579 Ford OBD-II Trouble CodeDescription: OBD Trouble Code P0579 Cruise Control Multi-Function Input “A” Circuit Range/Performance What does the code mean? OBD-ii Code P0579 definition: Symptoms Sumptoms of OBD code P0579 – Engine Light ON (or Service Engine Soon Warning Light) – Cruise […]