Ford P0677 OBD-II Trouble Code Definition: P0677 Cylinder 7 Glow Plug Circuit Fault P0677 Ford OBD-II Trouble CodeDescription: OBD Trouble Code P0677 Cylinder 7 Glow Plug Circuit What does the code mean? OBD-ii Code P0677 definition: The Engine Control Module (ECM) has detected a fault in the cylinder #7 glow plug circuit Symptoms Sumptoms of OBD […]