Toyota 89465-0T030 Oxygen Sensor If you have a 2013 Toyota Venza with the check engine light on and code P0057 B2S2 Oxygen Sensor malfunction stored in the computer, then you will want to replace that oxygen sensor. The Bank 2 Sensor 2 Oxygen sensor is located in the exhaust manifold closest to the radiator, at the bottom. Here is a look at the area with the hood open.... It is best seen and replaced from underneath the vehicle. You may need to remove the splash shield to access the electrical connector... The oxygen sensor wire is held into place with a wire clip. Just remove it from the clip, disconnect the electrical connector and use a 22mm wrench to loosen the sensor. The sensor part # is 89465-0T030