Curated picks
OBD2 Scanners
Plug-in scanners that read engine codes and clear the check engine light
An OBD2 scanner plugs into your car's diagnostic port to read trouble codes, view live sensor data, and clear the check engine light. Handheld units have their own screen, while Bluetooth dongles pair with an app on your phone. They help you understand a warning light before deciding whether a repair is needed.
Consider whether you want a standalone tool or a phone-based one, and what data and systems the scanner can access. We round up top-rated OBD2 scanners on Amazon so you can compare basic code readers and more capable units. Most cars sold for the US market since 2008 use the standard OBD2 port these tools rely on.
Top picks
Popular obd2 scanners
What to look for
- Reads and clears trouble codes
- Live sensor data support
- Handheld screen or app-based
- Broad vehicle compatibility
FAQ
Will an OBD2 scanner work on my car?
Can a scanner turn off my check engine light?
What is the difference between a code reader and a scanner?
Read first
OBD2 Scanners guides
How to Choose the Best OBD2 Scanner for Your Car
Bluetooth adapters vs handheld scanners, app support, and key features explained so you can read codes and diagnose that check engine light
Read guide →How to Use an OBD2 Scanner: A Step by Step Guide for Beginners
Learn how to plug in an OBD2 scanner, read and clear trouble codes, check live data, and recognize when a problem really needs a professional mechanic.
Read guide →Keep browsing
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