Even the cheapest, simplest OBDII scanners will read out codes from the car, allowing the user to look up what the code means and how to fix it.

Tested: Best OBD-II Scanners for 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.

Already an affordable option, right now you can save over $25 on this diagnostic code reader from trusted brand Ancel.

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Best OBD-II Scanners of 2025, Tested 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.

Did your vehicle's check-engine light just pop on? An OBD-II scanner can provide some direction. We tested a handful to find ...

We'll explain how to use an OBDII code reader to clear Cummins fault codes, and we'll also explain how to clear the codes if you don't have access to a scan tool.

If you’re interested in a large-screen OBDII scanner that displays severity alerts that tell you when your car needs immediate attention, try the INNOVA 6030P Code Reader and Scanner, which also ...

If you decide to use a Wireless Code Reader that uses Bluetooth or Wi-Fi to link to the OBD-II port, you should download a car scanner app.

Each OBD car scanner is prices differently from cheap scan tool to expensive. Which obd reader you should buy depends on what you're looking for in a diagnostic OBD reader.

The Drive's DIYers show you what an OBD2 scanner is, how it works, how to use one, and which is the best you can have in your home garage.

We'll explain how to use an OBDII code reader to clear Cummins fault codes, and we'll also explain how to clear the codes if you don't have access to a scan tool.