All vehicles manufactured from 1996 on are required to have an Onboard Diagnostics II (OBD-II) port that continually checks the emissions, engine, and transmission systems performance. This port is often used in conjunction with an OBD-II scan tool for diagnostics, repairs, and reprogramming services.
You’ll need an OBD-II scan tool in order to complete a successful diagnostic. If you don’t have one, we recommend taking the vehicle to a certified repair shop or dealership. They can help you run a diagnostic in a jiffy.
After you find a scan tool, follow these simple steps to run the diagnostic: