Automotive experts note that inexpensive OBD-II code readers can perform core tasks like reading and clearing engine codes, while higher-end scanners provide broader system access, live data, and ...

Before I figured out how to work on cars, onboard computer systems scared me. I’ve had no formal training, after all, so the idea of a car’s complex electricals and countless sensors made DIY work ...

Diagnosing automotive problems used to be much more challenging. A mechanic had to use all of their skills to pinpoint mechanical or electrical issues. Nowadays, you can diagnose many problems ...

Understanding OBD-II and trouble codes Most U.S. vehicles from 1996 onward use the OBD-II system, which allows scan tools to read diagnostic trouble codes (DTCs) from the car’s computer. These codes ...

If you drive older cars you're going to find yourself in a situation where you are nowhere near home and a check engine light suddenly appears. What does it mean? Is it just a bad spark plug? Is your ...