That's not even true. Eg. Sometimes you can fix the issue, but you still need a computer to reset the "error light" on your dashboard. In general, the directi

That's not even true. Eg. Sometimes you can fix the issue, but you still need a computer to reset the "error light" on your dashboard. In general, the direction is clear. While you can still have some manufacturers that aren't requiring it now. It will be in the future. Source: a family member has a "non-brand" garage shop with specialization in one brand and now he can work better on cars, because he bought the computer when an official shop went bankrupt ( that was ~2 years ago). Last time I saw him ( 1 week ago), there was a big similarity to Jhon Deere and the Ukranian developers that have unofficial software to work on the machine)