Are there two trouble lights lit up on the instrument panel? If so, then the EPS is disable. Run it up above about 3,400 RPM and see if the lights go away. Then the EPS will work. There is a recall on this problem.
If you look up,under the dash by the steering wheel you should see a silver box inline with the steering shaft. If you only see a shaft and no box ( power steering pump) then you don't have it. However as mentioned above I bet you are part of the recall. Good luck!
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