I have a 2005 Ford 500. I was driving along and had to hit my brakes really hard to avoid a major hole in the road still hit said hole. But not super hard. The very next stop light that I came to where I came to complete stop the car dropped into limp mode and I could not accelerate over 20 miles an hour and the dash lights are the check engine light the wrench light and the traction control light. And the diagnostic screen says transmission data error and traction control data error. I've had it at two shops mechanic and transmission and they're telling me it's in the wiring harness. Any help in this matter would be very appreciated thank you

 

With all those lights lit, there should be a code or codes in the vehicle computer. The thing to do is find what those codes are. Places like Autozone will do this for you at no charge. Post the code(s) here of that is possible.

 

says no codes

 

We know wheel speed sensors can trigger the wrench code as well as throttle body problems.

If the check engine light is illuminated, there has to be a code to support that. Is the light going off and not back on if you shut the key off then on again until you start driving?
There are systems that run a pre check when you first turn the key on , we need to check those systems.

If the shops you have tried don't specialize in finding problems ,now is time to move on to a dealership that has the tools, info and desire to find the problem and correct it.
These problems don't just go away , they breed addl problems.