Will an OBD2 scanner fix my car?

OBD2 scanners diagnose problems — they read and clear check engine codes and display sensor data. They tell you WHAT is wrong so you can fix it yourself or bring informed knowledge to a mechanic.

Can OBD2 scanners damage my car?

No — OBD2 scanners only read data from your car's computer. They don't modify anything. Clearing codes is safe too — if the problem persists, the code will return. Always buy from reputable brands to avoid electrical issues.

Best Wireless OBD2 Scanners 2026