Anyone know if a vag401 will read codes for esp light coming on? My wifes 01 TT esp light comes on after driving it a while. goes off again after a restart. Shes hounding me to fix it. Dont want to throw big $ down for a vagcom if a vag401 will do the trick. Not interested in going to dealer yet. They always seem to screw stuff up. any help would be appreciated.