OBD-II Trouble Code: P0161 HO2S Heater Circuit Malfunction (Bank 2 Sensor 2)
What does the P0161 OBD-II code mean? The P0161 code triggers when the powertrain control module (PCM) registers an issue with the heater control circuit in the oxygen sensor bank 2, sensor 2. Effectively, the bank 2, sensor 2 oxygen…