I replaced my coilovers with the stock shocks and tein springs for a rebuild. Also new rotors, pads, and bled the brakes. Started the car and the eps light is on. The car is exactly the same height as with the old suspension. I really don't understand what I could have done. Checked all sensors. They are all connected. After searching the forums did the paper clip procedure, and received codes 3,21,23. I'm kind of lost on what to do next. Prior to this the EPS has not had any issues.

 

Try taking it for a drive and it should reset itself.

 

Took the battery into autozone to get tested this morning. Charge was full but battery was bad. It was replaced under warranty. I drove the car 45 miles today, after replacement and eps still isn't working.

 

It does not appear that the work you did would have affected the Eps system. The eps issue may be just a coincidence

 

A fellow member let me plug in an extra eps control unit and it did not solve the issue. Light stayed on.

 

You might need to clean the Torque Sensor. I was having power steering issuses. I replaced the EPS module and that didn't help. I took it into a shop to have the grease in the torque sensor removed and replaced with fresh grease. That solved the problem.

 

Just started the car and no eps light. Power steering again. Hopefully it lasts

 

On my mot 2 yrs ago,with engine running the tester moved front road wheel from lock to lock by hand.
Nearly trapped his arm as steering motor kicked in, and all steering went crazy, lock to lock on its own !!!
Beware people !! &<eps came on went of after the drive home>.