Lol, that's what I was expecting... so it only works for newer cars... there's device that you take out from the kiosk drawer and plug to your car's computer interface thing (obd interface or something) that's usually under the dash on the driver side..you plug it in, follow the screen prints,it does it's thing and prints out the results.
Not exactly, but here's a video that shows you: https://youtu.be/AKUPbakJlAc
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