Get Free Diagnostic Code Reads at AutoZone

The Problem

Check engine light is on. The mechanic wants $100 just to diagnose it. You have no idea if it's serious.

The Hack

Drive to AutoZone, O'Reilly, or Advance Auto Parts. Ask them to read your OBD2 codes. They plug in a scanner for free and give you the error code and basic description.

Why It Works

Check engine codes tell you exactly what the car's computer detected. Knowing the code before visiting a mechanic prevents you from being overcharged for unnecessary repairs.

Pro Tips

• Free at AutoZone, O'Reilly, and Advance Auto Parts
• Write down the code (e.g., P0420) and Google it for details
• Common codes are often simple fixes: gas cap loose, O2 sensor, misfire
• A $25 Bluetooth OBD2 scanner lets you read codes yourself anytime