Easily diagnose your car problem with code readers and diagnostic tools from AutoZone. With our variety of code readers, you can find the perfect one that will accurately operate for your vehicle.

Find the best OBD2 scanner for your vehicle with our 2025 buying guide. Discover the different factors to consider when buying a code reader.

Your vehicle's on-board diagnostic system stores trouble codes when it detects issues to make diagnosing problems easier. Learn what these codes mean.

We have the best Professional Code Reader for the right price. Buy online for free next day delivery or same day pickup at a store near you.

The Innova 3011 is the purpose-built entry-level OBD2 Code Reader to diagnose and clear check engine lights, fast. The tool automatically scans the vehicle once connected and clears the …

Online Leading Giant provides the best products at the right prices. Order your Diagnostic Loaner/Rental Tools online at AutoZone.com.

Safely and easily access on-board computer to read engine codes and perform self-test functions on most Ford, Lincoln, Mercury vehicles (domestic cars & trucks) from 1982 to 1995.

Get insights into your vehicle's health by understanding OBD 2 codes. Explore our list of common codes, their meanings, and expert tips for diagnosis and repair.

The Innova 3020RS OBD2 Code Reader helps you easily find the problem and fix the problem. It empowers the home mechanic with professional-level functionality, including ABS (Brake), to …

This compact device excels in diagnosing and clearing Diagnostic Trouble Codes, offering quick and reliable readings that make vehicle maintenance more efficient.