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 ...

We've all been there—that pesky check engine light pops up on your dashboard. Instantly, thoughts of expensive mechanic bills, weeks of it being repaired in the garage, and inconveniences galore flash ...

The OBD acronym stands for on-board diagnostics, a system built into modern vehicles that monitors the performance of the engine and other critical components. An OBD system records diagnostic trouble ...

The check engine light is both a friend and foe. For those who take their cars to the shop for repairs, it’s a symbol of impending treachery and rising credit card bills. But to those who shoulder the ...

Vehicle diagnostics have shifted from manual checks to standardized digital code reading via OBD-II scanners. These tools give drivers and mechanics quick access to fault codes and performance data, ...

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 ...

Diagnostics go mainstream: Affordable OBD-II apps and adapters now let everyday drivers access real-time car data once limited to professional tools. Fleet management boost: Plug-and-play OBD-II ...