Bests & Worsts Reviews from Amazon

This device works exactly as it should and for a great price. I downloaded the app they suggested from Google Play but ended up with another app that is free and has no ads called Piston. Piston is digital rather than graphic which I prefer and tells you all you need to know. There are much more expensive devices out there that don't provide anymore information. This device does not do a couple things (ABS/SRS) that you would have to pay several hundred dollars to get in another device. For that rare or unlikely need you can have it done by a pro, or perhaps Autozone has the capability with their scanners and they do it for free. The thing that is really nice about this device is that it can be used at your own home or on the road if needed in a breakdown. And it can help you keep the mechanics honest. You can download the complete list that explains the error codes and save to a file for offline viewing on your smart device. Or you can get an app like OBD2 Code Guide and search for the error code. It gives you possible causes as well. I do not know how often the database is updated.