You will require an OBD-II scanner to find out exactly what code your vehicle has logged. Before that happens, you will likely be alerted to stored codes by an illuminated check engine light.

Nearly all TTAC readers and writers have wrenched on a vehicle equipped with the OBD-II diagnostic system. Having a handheld code reader in yer box of tools can help douse that infernal check ...

The current version of the on-board diagnostics (OBD) protocol provides real time data as well as fault diagnostics, thanks to the numerous sensors connected to the data network in the modern vehicle.

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. The best OBD-II scanners can unlock the secrets of your car, connecting to the onboard ...

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.