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 ...

From decoding check engine lights to streaming live engine data, OBD-II scanners have changed how drivers maintain and repair their cars. With the right tool, you can pinpoint problems early, avoid ...

️ Editor's note: This product category requires new testing about once a year. We'll update this article with the most recent information when it's available. Modern cars are technological marvels, ...

Your car’s OBD-II port is more than just a check engine light reader — it’s a gateway to understanding your vehicle’s health. From decoding trouble codes to streaming live sensor data, it can empower ...

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 ...

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 ...

If you own a car built after 1996, it comes equipped with a second-generation onboard diagnostic (OBD or OBDII) system. These systems work together with the vehicle's primary computer or powertrain ...

If you've been involved in automotive repair for a while, you probably know that modern vehicles use onboard diagnostic (OBD) systems to help notify us when there's a problem. The OBD system works ...

Sponsored Content. We may receive a commission on purchases made from links. Let's replay a scenario that is likely rather well known among the automotive inclined. You are driving your 2005 Cadillac ...

A Bluetooth code reader connected to a vehicle. - Maddox/Harbor Freight It's never a good time when one or more dashboard lights decide to turn on. While some dashboard lights are more common and ...