Can anybody give me an estimate to fix the ETC. Car want accelerate,only 10 MPH. on 2009 Dodge Caliber

Mycar lost power and will only go 10-20 MPH. The Electrical throttle control light came on. I have had the throttle cleaned but still no power, also when I press the break the whole car shakes. I was on the highway when the car speed started to decline. I was not able to get any codes as auto zone can only check the engine light codes and my
engine light is not on.

Asked by for the 2009 Dodge Caliber