Ford P0683 OBD-II Trouble Code Definition: P0683 Glow Plug Module Control To ECM Communication Circuit Fault P0683 Ford OBD-II Trouble CodeDescription: OBD Trouble Code P0683 Glow Plug Control Module to PCM Communication Circuit What does the code mean? OBD-ii Code P0683 definition: The Engine Control Module (ECM) has detected a communication fault with the Glow Plug […]