Hello and thank you for choosing just answer,
The code indicates a problem with your throttle body, It could be the spring or a stuck valve. I suggest cleaning your throttle body, clear the code then see if it comes back after a week of driving. If it doesn't then you're all set. If it does then replace the throttle body and the TP sensor and that should take care of the problem.
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Cleaning the throttle body is not expensive at all, Any repair facility will be able to do it for 50-75 dollars at most. If you need to replace the throttle body you are looking at around 600 dollars for parts and 1.5-2 hours of labor, The price of labor depends on the shop and\or dealership's hourly labor charge.