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Buying an OBD2 scanner: Complete Beginner's Guide
An illuminated check engine light on your dashboard only says one thing: a fault code is stored somewhere. You'll only find out what that fault code is, and whether you can just keep driving, once you scan the car. For that, you need an OBD2 scanner. This guide explains from scratch what an OBD2 scanner is, what you can do with it, why one scanner costs 30 euros and another 3,000 euros, and how to determine which level you need. Whether you're trying to diagnose a problem yourself for the first time or if you're a small garage looking to upgrade your diagnostic equipment: after this article, you'll know what to look for before buying an OBD2 scanner.
10 September 2026 - 20 min reading time
