The best OBD-II scanners are a must for any car owner, thanks to their ability to unlock the secrets of your car. It doesn't matter how laid back you are, a mysterious light on your dashboard is ...

An OBD2 (On-Board Diagnostics II) scanner can provide information about the status and health of various vehicular systems.

Using an OBD2 (On-Board Diagnostics II) scanner is a relatively simple process that can ... the TOPDON TopScan that pairs with your phone and turns it into the perfect scan tool. To use it, just plug ...

[Alex Sidorenko] has built an open source OBD-II Adapter which provides a serial interface using the ELM327 command set and supports all OBD-II standards. We featured [Alex]’s inexpensive PIC ...

In short, effective vehicle diagnosis combines mechanical knowledge, specialized tools, and a systematic approach to ...

Learn what that pesky dashboard light means before heading to the shop — and maybe save some cash in the process.

Whatever you did, though, it’s likely that one major event passed you by without a thought: The standardization of on-board vehicle diagnostics (in the US), otherwise known as OBD-II.

OBD-II is the same on every car. This means that it's easy and cheap for mechanics and do-it-yourselfers to buy what's called a "scan tool" or use a laptop and some specialized software to connect ...