Possible causes
– Faulty Heated Oxygen Sensor Bank 1 Sensor 2
– Heated Oxygen Sensor Bank 1 Sensor 2 harness is open or shorted
– Heated Oxygen Sensor Bank 1 Sensor 2 circuit poor electrical connection
– Heated Oxygen Sensor Bank 1 Sensor 2 harness is open or shorted
– Heated Oxygen Sensor Bank 1 Sensor 2 circuit poor electrical connection
When is the obd code mean?
Heater current requirements too low or high in the heated oxygen sensor (HO2S) heater control circuit
Symptoms
– Engine Light ON (or Service Engine Soon Warning Light)