From fiat, the aa and the guy who remapped the car all said the same thing...
Well they're all wrong. I'm surprised Fiat have said it also. Only way to 'reset' (and even then it doesn't always reset everything) the ECU is a battery pull
Remapper & AA - jack of all makes and models, masters or none
Fiat - never seem to know what they're on about half the time anyway unfortunatly