Possible causes – Faulty Heated Oxygen Sensor (H2OS) Bank 1 Sensor 3– Heated Oxygen Sensor (H2OS) Bank 1 Sensor 3 is open shorted to ground– Heated Oxygen Sensor (H2OS) Bank 1 Sensor 3 poor electrical connection– Heated Oxygen Sensor (H2OS) Bank 1 Sensor 3 fuse– Faulty Engine Control Module (ECM) Tech description The code means…