Did your vehicle's check-engine light just pop on? An OBD-II scanner can provide some direction. We tested a handful to find ...

An OBD2 (On-Board Diagnostics II) scanner can provide information about the status and health of various vehicular systems.

When something goes wrong, the OBD computer stores a five-letter diagnostic trouble code (DTC) that summarizes the issue at hand. These are also commonly known as OBD codes or OBD-II codes.

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.

For instance, code readers provide basic functionality to read and clear codes connected to the problems of a car that comes equipped with the advanced onboard diagnostics (OBD) system.

We've compiled a list of some of the best OBD2 diagnostic scanners describing their features, specifications, compatibility, and benefits.

OBD stands for onboard diagnostics, and an OBD-II scanner can check on your vehicle's vital systems, providing valuable information about warning lights, airbags, ABS, and more.

It stored a defined Diagnostic Trouble Code (DTC) in its computer memory and evoked an amber dashboard light. The ability to self-diagnose was often a confounding aspect of the GM system.

Onboard diagnostics provide near-universal codes, allowing users to understand what is going wrong in their vehicle. By understanding the differences in OBD versus OBD II and the different code ...

Discover what an OBD2 scanner is and how to use it to diagnose and fix car problems before they escalate into major repairs.

This month, Corvette tech guru James Berry discusses how to use the Drivers Information Center and access diagnostic codes on 1997 to 2004 C5 Corvettes.