Ford P0703 OBD-II Trouble Code Definition: P0703 Brake Light Switch Plausibility P0703 Ford OBD-II Trouble CodeDescription: OBD Trouble Code P0703 Brake Switch “B” Circuit What does the code mean? OBD-ii Code P0703 definition: Engine Control Module (ECM) detected accelerations and decelerations with no brake switch change Symptoms Sumptoms of OBD code P0703 – Engine Light ON […]