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Car onboard diagnostic systems are very useful, but different brands have diverse error codes. Here's the difference between ...

On-board diagnostics (OBD-II) scanners, required in U.S. vehicles since 1996, have progressed from simple fault code readers to advanced systems capable of real-time data monitoring and, in some cases ...

The Standard's journalism is supported by our readers. When you purchase through links on our site, we may earn an affiliate commission. Modern cars are great, except when they go wrong. The number of ...

Gone are the days when a "check engine" light coming on your dashboard automatically meant a costly trip to a main dealer to have your fault code read. Diagnosing issues at home has never been easier.

For all its '81 vehicles, GM introduced a computer-controlled engine-management system named Computer Command Control. It became known as CCC or C-3. The engine controller—first called an engine ...