I have a Hyundai Tucson 2005 4wd with error code p0036 that shows:
P0036 Hyundai - HO2S 12 Heater Control Circuit Fault, Bank1 sensor 2

I need a picture that show where the sensor is located, I like to inspect it or replace it if necessary

 

What engine? 2.0L 4-cyl or the 2.7L V6? We can't read minds here.

For the 4-cyl, there is only one bank.
For the V6, Bank 1 is the bank of cylinders on the firewall side and Bank 2 is the bank of cylinders on the radiator side.

Sensor 1 is the O2 sensor before the cat and Sensor 2 is the O2 sensor after the cat

So if you have a 4-cyl, it's the O2 sensor after the cat. If you have a V6 it's the sensor after the cat on the firewall side of the engine.

 

V6, 2.7 gls

 

Then it's the sensor after the cat on the firewall side of the engine.