AutoZone carries OBD2 scanners in most stores and online

Yes, AutoZone stocks OBD2 scanners both in physical locations and through its website. The selection includes basic code readers that show what's wrong with your engine, as well as more advanced diagnostic tools. You can walk into a store, buy one outright, or order online for pickup or delivery.

AutoZone also rents OBD2 scanners at many locations—a useful option if you need one for a single repair job and don't want to spend $30 to $200 on a tool you'll use once. Rental costs typically run $15 to $25 for a week, depending on the scanner model and your local store's pricing.

Key Takeaways

  • AutoZone sells OBD2 scanners ranging from basic code readers under $30 to advanced diagnostic tools over $100, available in-store and online.
  • Many AutoZone locations rent OBD2 scanners for $15 to $25 per week if you need one temporarily.
  • Not all AutoZone stores carry the same inventory, so call ahead or check the website to confirm availability before you go.
  • Basic scanners read fault codes and clear check-engine lights; advanced models show live data and can diagnose multiple systems.

What types of OBD2 scanners AutoZone sells

AutoZone's scanner lineup breaks into three rough categories. Basic code readers are the cheapest option—usually $20 to $50—and do one job well: they read the diagnostic trouble codes that trigger your check-engine light and let you clear it. Models like the Innova 3100 or similar budget brands fall here. They work on most vehicles made after 1996 and tell you what system is misfiring, but not much else.

Mid-range scanners cost $50 to $120 and add features like live data streaming (watching sensor readings in real time), freeze-frame capture (a snapshot of what the engine was doing when the fault occurred), and the ability to read codes from multiple vehicle systems—transmission, ABS brakes, airbags. These are useful if you're troubleshooting a problem yourself rather than just reading a single code.

Professional-grade scanners run $150 and up and include features like bidirectional control (commanding the car to perform actions for testing), manufacturer-specific codes, and compatibility with luxury or imported vehicles. AutoZone carries a few of these, though the selection is smaller than at specialty tool retailers.

Buying versus renting at AutoZone

Renting makes sense if you're fixing one specific problem and won't need the scanner again. A week's rental at $15 to $25 is cheaper than buying a basic scanner outright, and you avoid storing a tool you'll rarely touch. You'll need to leave a credit card on file as a deposit, and most stores require you to return the scanner within seven days or they charge you the purchase price.

Buying is the better choice if you own an older car that needs regular diagnosis, plan to do your own maintenance, or want to keep the tool for future use. Even a $30 basic scanner pays for itself after two or three rentals. AutoZone's return policy typically allows 30 days with a receipt, so if you buy and change your mind, you can bring it back.

How to find what's in stock near you

AutoZone's website has a store locator where you can enter your zip code and see which locations are nearby. Once you pick a store, you can search for specific scanner models and see real-time stock status—in stock, low stock, or out of stock. This saves a trip if your local store doesn't have what you want.

If you're looking for a rental scanner, call the store directly. The website doesn't always show rental availability clearly, and inventory for rentals can differ from purchase stock. A quick phone call to the parts counter will tell you whether they have a scanner available and what the rental fee is.

You can also order online for in-store pickup (usually ready within an hour) or have it shipped to your home. Shipping costs vary, but AutoZone often waives shipping on orders over a certain amount—check the website for current promotions.

What to expect when you use an AutoZone scanner

Basic scanners are straightforward: plug the connector into your vehicle's OBD2 port (usually under the steering wheel on the driver's side), turn the key to the "on" position without starting the engine, and the scanner reads codes. Most display the code number and a brief description—for example, "P0300: Random/Multiple Cylinder Misfire Detected." From there, you can research what that code means and decide whether to fix it yourself or take it to a mechanic.

More advanced scanners let you scroll through live data—fuel trim, oxygen sensor readings, coolant temperature—while the engine runs. This takes practice to interpret, but it's useful for narrowing down whether a sensor is failing or if the problem is elsewhere. The manual that comes with the scanner (or online videos) will walk you through the steps.

One common mistake: assuming the code tells you exactly what's broken. A misfire code might point to a bad spark plug, a fuel injector, a compression problem, or a sensor malfunction. The scanner narrows it down, but diagnosis still requires some detective work.

Alternatives if AutoZone doesn't have what you need

If your local AutoZone is out of stock, other retailers carry OBD2 scanners: Advance Auto Parts, O'Reilly Auto, NAPA, and Walmart all stock basic readers. Amazon and eBay have wider selections and often lower prices, though you'll wait for shipping.

Some independent mechanics and tire shops will read your codes for free or a small fee—usually $10 to $20—if you just need to know what's wrong without buying a scanner. This is a good option if you're not sure whether you'll need the scanner again.

If you need professional-grade diagnostics, a dealership or independent shop with a full diagnostic computer can pull codes, run live data, and perform tests that a handheld scanner can't. This costs more upfront but saves time if the problem is complex.

Frequently Asked Questions

Can I use an AutoZone scanner on any car?

Most basic scanners work on vehicles made after 1996 that have an OBD2 port. Older cars, some luxury brands, and heavy trucks may need a different tool. Check the scanner's compatibility list before you buy or rent, or ask the AutoZone staff whether it will work on your specific vehicle.

Will clearing the check-engine light with a scanner fix my car?

No. Clearing the code erases the warning light, but it doesn't repair the underlying problem. The light will come back if the fault is still there. Use the scanner to find out what's wrong, then fix the actual issue—a bad sensor, loose gas cap, or worn spark plug—before clearing the code.

Do I need a subscription or app to use an AutoZone scanner?

Basic and mid-range scanners work standalone with no subscription. Some advanced models connect to a smartphone app for easier data viewing, but that's optional. Check the product description to see whether the scanner you're considering requires any ongoing fees.

What if the scanner won't connect to my car?

First, make sure the OBD2 port is clean and the connector is fully seated. Turn the key to "on" without starting the engine—some scanners won't connect if the engine is running. If it still won't work, the scanner may not be compatible with your vehicle, or the port itself may be damaged. Try a different scanner at AutoZone or contact the store for troubleshooting help.