E10 chassis switch problem

[mikenet]

Hi everyone, I would like to know if this has already happened to anyone: I reassembled the engine on the bike, after changing the faulty controller from Fc1 to FC2. I had already tested the engine on the other E10 chassis and everything was ok, but now the switch to enable the battery doesn't seem to work. Both on and off the display lights up. I tried with the tester and instead it seems to work: when pressed there is consent while in the off position there is no, but the moment I connect it to the cable that goes to the battery it is as if it were not there, there is always contact, always on. By using a loose connection in the female connector of the battery the display turns on. By removing the cable the display turns off.