Hyundai Repair: O2 Sensor, hyundai service, oxygen sensor

Question
Took my 2000 Tiburon for it's emmissions test and it failed.  Came back with this error:

P0136 O2 Sensor Circuit Malfunction (Bank 1 Sensor 2)

Is there anywhere I can get a manual/diagram on where this is and how to replace it?

Thanks.

Answer
You can view the Hyundai service manuals and other information at www.hmaservice.com.  You'll need to register for a free account, and the site requires Internet Explorer.  

The rear oxygen sensor is located just behind the flexible portion of the front flex pipe.  You'll be able to remove the sensor with a 22mm or 7/8" wrench.