2004 Toyota Camry V6 3.0 Where is the bank one sensor one located?

Question

When looking at the engine from the front of the car, where is the bank 1, sensor 1 located?

Answer 1

Here is the only image I got. I hope it helps.

Bank 1 Sensor 1 is on the back of the engine

Comments

It looks like the  B1 S1 has to be accessed from beneath the vehicle.  Correct?  Thank you Mr. Orellana, for a quick and helpful image.