A diagnostic scanner makes it much easier to find faults in motor electronics. But usually only very expensive devices are offered. In China there is a much cheaper device – but the own import involves certain difficulties. www.autoobd-ii.com/P_view.asp?pid=333 Who has experience here and can present a device? It would also be conceivable to convert one of the very cheap(€ 40~50.-) car scanners CAN OBD II bus devices. An adapter from the OBD II to the usual scooter diagnostic connectors (e.g. Kymco, SYM, Suzuki, PGO etc.) and a separate power supply and already it could work. But where is such an adapter to get??? Or maybe you could also install an OBD II socket in the scooter. These can perhaps be obtained via car spare parts dealer and connected according to the pin occupancy plan. http://www.elv.de/…/controller.aspx?…