People are getting fed up with all the useless tech in their cars — For the first time in 28 years of JD Power’s car owner survey, there is a consecutive year-over-year decline in satisfaction, wit…::People are dissatisfied with the technology in their cars, according to a new survey from JD Power. They especially don’t like the native infotainment systems.
My 1991 4Runner doesn’t even have a diagnostic port (pre OBDII), but you can get it to tell you what it thinks is wrong.
To do this, you need to use a paperclip to jump two terminals in a box under the hood, then turn the ignition to ON, count the number of times the check engine light blinks, write that down, then look up what that code means, in a book.
(Granted, the book is a PDF these days, but still)