Present-day OBD is in fact a set of tools, codes, and procedures that allows the vehicle to determine if and what is wrong with itself, and then relay that info ...

Check out how to read OBD-II engine codes and learn what they all mean. Get all the details here in this month's issue of Turbo & High-Tech Performance.

The OBD (On-Board Diagnosis) system in your Toyota Corolla will enable you to see what’s wrong with it without going to the service if you choose the low-budget DIY way.