Amongst a few other diagnostic systems I have the Autel MD802 elite, full system option, it claims to do everything pretty much, however no scan tool ever does there are always holes, tried to calibrate a SAS on a Landrover , MD wouldn't do it, neither would Launch x431, Autodiagnosis did though. On the whole though MD 802 is pretty good for the money, suggest get it from Amazon, easy to send back then if no good for you.