What is the average cost of the electronic throttle control unit?

Not sure on the cost, but I have had this same problem with my 07 dodge caliber since I bought it in Oct 09. Everytime I took it to the dealership they said they couldnt find the code and didnt know what was wrong. The light indicator is for the "electronic throttle control." My car is getting towed to the shop now and Im really getting tired of all the repairs!

For prices you can use the "Estimator" section of this site. Zee