1999 Toyota Camry Rear Heated Oxygen Sensor Bank 1 Location

Question

I have a 1999 Toyota Camry and I have a fault code P0136. Where is the Rear Heated Oxygen Sensor Bank 1 located and how hard is it to replace?

Answer 1

P0136 02 sensor circuit malfunction Bank 1 Sensor 2

Bank 1 is where cylinder 1 is located and being a sensor 2 this is the downstream 02 sensor which is the one after the catalytic convertor of Bank 1