So the EOS checks fine in switch test? Remember changing everything doesn;t make a switch work, and it can screw it up. Go in test and make sure the EOS is registering....
You have a lot of possibilities here.
Switch work?
Follow those wires back are they shorted on the way back to...guessing it's a fliptronic board in the head?
Those fuses are fine?
After all tat comes the next step. I don;t know it because I have a machine that has had that error for a couple years and I just ignore it