Modern vehicles’ sophisticated electronics go far beyond the simple car mechanics most of us grew up with. Now, OBD, or on-board diagnostics, diagnoses almost every issue within your vehicle. Whether ...

This article was updated in November 2025 with new information. You know you’ve earned your DIY stripes when you can stay calm the moment something goes wrong. And with cars, that moment usually ...

从1996年开始，所有在美国销售的汽车都必须配备OBD-II诊断连接器。我一直想知道相应的OBD-II扫描仪(和类似产品)的内部是什么样的。为了通过这个拆解项目满足我的好奇心，我选择了一款价格更适中(但仍然是主流功能)的设备，即THINKCAR Tech的THINKOBD 100。

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Modern cars are technological marvels, and understanding what’s happening under the hood has never been ...

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 ...

️ 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, ...

In the Last diagnostics article, we outlined how to retrieve and decipher engine diagnostics for engines running OBD-I engine management computers. OBD or On Board Diagnostics is a subsystem of the ...

Whether you are a full time mechanic, or just a hobbyist, keeping track of all the different OBD-II codes for various vehicles is a nearly impossible task, and while not everyone wants to keep their ...

We may receive a commission on purchases made from links. If you've ever connected a standard OBD-II scanner to your motorcycle only to find it doesn't work as expected, you're not alone. Unlike cars, ...