There is a new version of fiat ecuscan out, the 3.2 version. I used it today to reset my airbaglight. for some reason the old version I had, showed the fault but would not clear the fault even though I had used it twice before for the same problem. So came back in and had a look on the fiat ecuscan site. I download the new version, installed it and tried again. It cleared it straight away. The Free version does not allaow you to do everying available, so I'm not sure about an ECU re-set, but there are FAQ's and a forum on the site. Have a look.