What is OBD-II: A standardized system in all cars since 1996 that monitors engine, transmission, and emissions, storing trouble codes when something’s off. Why it matters: Reading codes with a scanner ...

Your car’s OBD-II system is like a built-in health monitor, storing trouble codes when something’s wrong. Learning to read these codes helps you decide whether to keep driving or head straight to a ...

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 ...

The world of car diagnostics has changed a lot over the last 50 years. Back in the '70s and earlier, a mechanic's most valuable diagnostic tools were usually their eyes and ears. You could figure out ...

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 ...

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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 ...

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. Of course you have to know how ...

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 ...

Getting OBD fault codes and checking the health of your car no longer requires a trip to the service center, as a simple OBD2 adapter, either wired or wireless, allows you to do this from the comfort ...