Nov 19, 2025 · Did your vehicle's check-engine light just pop on? An OBD-II scanner can provide some direction. We tested a handful to find the best for different situations.

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.

Discover the best Code Readers & Scan Tools in Best Sellers. Find the top 100 most popular items in Amazon Automotive Best Sellers.

Jul 18, 2025 · This is a car code reader or diagnostic tool that allows you to communicate with the engine’s computer about what’s wrong and needs to be fixed. This system has been in use for …

Nov 8, 2025 · Looking for the best OBD2 scanner? Our guide reviews the top options to help you diagnose issues and keep your car in top shape.

Sep 15, 2025 · Get the read on your car issues with an OBD-II code reader. I tried out some of the top brands on the market to find the best one for your needs.

Jul 11, 2025 · You’ll learn how Engine Code Scanners work, what to look for when buying one, and which ones are the best for different needs. By the end, you’ll be ready to confidently …

Nov 1, 2024 · Is your check engine light on? We field tested and can point you to the right OBD2 scanner to diagnose vehicle troubles including Bosch, Ancel, TOPDON and more.

Feb 21, 2025 · A car code reader lets you read and clear codes, view basic parameter IDs, and check and reset readiness monitors. This gives you an excellent way to tell if the problem is …

Diagnose your car's issues at home with the best OBD-II scanners you can buy right now.