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Hummer Fault Code Readers

Hummer fault code readers (also known as OBD2 scanners) will diagnose & clear fault codes from your engine module and allow you to remove & clear the engine light or MIL light from your dashboard. The tools have integrated screens and will read out the Hummer problem or trouble code, and are a must for any owners toolbox if you are looking to fix your Hummer. You can also find live data, o2 sensor data & freeze frame data. Uk Pro Diagnostics is the number 1 place to buy an OBD2 scanner online.