If you're a personal user, knowing how to read and interpret OBD codes is a trick that's well worth having up your sleeve for those times when the Check Engine light in your car suddenly comes on ...

The second character lets you know whether the OBD code is generic or manufacturer-specific. Generic codes apply to issues that could happen on any car. For example, you’ll see the same code for ...

Did your vehicle's check-engine light just pop on? An OBD-II scanner can provide some direction. We tested a handful to find ...

P0411 – EVAP system control incorrect purge flow You may see other codes present, as the EVAP system has codes that run from 0440 to 0457. Q: How Do I Reset The Check Engine Light And Code?

Occasionally, these modules need to be reset and this is typically done with a scanner or scan tool. However, you can reset an ECU without needing to spend money on these computerized diagnostic ...

The primary purpose of the OBD-II connection is for emissions testing, but one of the first and most widespread applications available to consumers is the scan tool or code reader.