P1120 AUDI HO2S Sensor Heater Circuit Open Bank 2 Sensor 1

Possible causes – Faulty HO2 Sensor Bank 2 Sensor 1– HO2 Sensor Bank 2 Sensor 1 harness is open or shorted– HO2 Sensor Bank 2 Sensor 1 circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light)