Need help? Diagnose automotive problems with powerful diagnostic computers and tools.

Nov 19, 2025 · Did your vehicle's check-engine light just pop on? An OBD-II scanner can point you in the right direction—and potentially save you a bundle. This article was updated in November 2025 …

Jul 22, 2025 · Modern cars are essentially computers on wheels, with sensors constantly sending data to help your engine run smoothly. When something goes wrong, your car stores error codes that can …

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.

When you detect there's a problem with your vehicle, turn to AutoZone to help you pinpoint the issue. With our wide variety of code readers, you can get to the root of the problem in no time. Our OBD2 …

Jul 18, 2025 · Automotive OBD2 scanners and car code readers are the easiest and least expensive ways to find out why your engine light is on and get it to turn off. I’ve used dozens of scan tools over …

Mar 25, 2025 · What is a Car Diagnostic Computer? A car diagnostic computer, also known as an OBD-II scanner or code reader, is an electronic device that connects to a vehicle’s onboard diagnostic …

4 days ago · Diagnostic trouble codes (DTCs), which are stored in the system and indicate difficulties the automobile is having, may be retrieved and read by it.

Nov 1, 2024 · These savvy auto tools can clear the car’s trouble codes, check engine lights, and monitor the automobile’s health and information. While most of these computers offer a fairly universal...

Nov 28, 2025 · Finding a reliable car diagnostic tool helps you pinpoint engine and system issues quickly, minimize repair costs, and keep vehicles running smoothly. The following five scanners …