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On-Board Diagnostic Systems (OBD) are not new. Basically they are systems that allow us to check if something is wrong with our vehicle and remedy it. They have been with us at least since 1969, when Volkswagen introduced the first sensor-based diagnostic systems in their vehicles. In a much more basic and primitive than today clear, but as I say is not something new.

Along the way have been emerging many other similar systems, also with complex acronyms such as CARB, OBD1, etc .. and up to the current OBD2 that although born in the United States, was implemented in the European Union back in 1998.

The best OBD2 scanner in the market Basically you will be able to find two types of scanner OBD2, by Bluetooth (there are also WiFi versions), or by cable. The former generally need an auxiliary application to extract and visualize the data captured by the automotive scanner. It can be an obd2 program for PC or it can be an app for phones. For example there are quite a few obd2 applications for free android that we can install in our mobile phone, also for iPhone. If you are going to opt for an obd2 reader with cable it is preferable that it is not USB because they do not usually have a screen and they force you to connect later to the computer. There are obd2 scanners with very cheap cable that already incorporate their own screen or display to see the readings. We'll talk about these, too.

That is, let's see right now so as not to waste any more time, which I consider the best OBD2 scanners, both Bluetooth and cable. The criterion would be the same as always, the best in terms of benefits but also be cheap and do not go a lot of price. I will also leave you the links where you can get them at a good price and with discounts.