The Check Engine light may indicate a serious issue with your Cummins diesel engine. Here's how to check and clear the fault ...

If you've got a programmer for your truck, then you have diagnostic trouble code (DTC) reader built into your programmer. Lucky you. But for the rest of us, we still need a way to read codes on our ...

On-board diagnostics (OBD) means different things to different people. To the guy who still cranks over his '71 'Cuda every morning to get to the plant, it scares him to death. But then again, he's ...

Whether you're an everyday driver or a pro technician, when your check engine light suddenly comes on the first step is to connect an OBD-II scanner. At Autoweek, we recommend everyone carry an OBD-II ...

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 ...