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The 111 code is for the intake air temperature on Bank 1. The 536 is for the A/C evaporator temperature which is a powertrain function.
Sometimes these sensors go down like dominos. If you address the intake air temp sensor, the other sensor may clear up. Go to an Autozone, Advance, or Oreillys and see what they have on their location. You may have a common connector which is dirty. Unplug, then replug connector to see if it helps.
The Intake Air Temperature sensor sends a reading to the main engine computer as to what temp the incoming air going into the engine is, for maximum engine fuel efficiency. On rio's, they often go bad due to their location in the intake manifold.. They are a bit tricky to get to, so take your time and use a 10mm socket with a 12-16" extension. They are located just to the right of the throttle body in the back area of the engine. Otherwise have a pro fix it.