To do so, you'll need to use a code reader. Find the OBD-II port in your car, usually under the driver's side dashboard, and connect the reader. It should be able to tell you the DTC created.

Discover what an OBD2 scanner is and how to use it to diagnose and fix car problems before they escalate into major repairs.

At $40 ($28 for Inside Track Club members), the CEN-TECH OBD2 Code Reader is the cheapest auto scan tool that Harbor Freight sells. It's a bare-bones device designed primarily for checking and ...