Nov 19, 2025 · Did your vehicle's check-engine light just pop on? An OBD-II scanner can provide some direction. We tested a handful to find the best for different situations.

With our wide variety of code readers, you can get to the root of the problem in no time. Our OBD2 scanners and other diagnostic tools also help you keep track of your previous vehicle …

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Diagnose your car’s engine problems with code readers & scanners from Harbor Freight. Full diagnostic capabilities. Read & clear check engine light codes.

Sep 15, 2025 · 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.

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Nov 1, 2024 · Is your check engine light on? We field tested and can point you to the right OBD2 scanner to diagnose vehicle troubles including Bosch, Ancel, TOPDON and more.