Please note that no instruction is included. I kind of knew what I was doing, but I had to google a bit. This is mainly for diagnosing your car, if you have the check engine light, it can also reset the check engine light. Another cool thing this tool does is that it can save your settings on your radio when you change batteries. I was also able to use this without a scanner. This tool can save you money on diagnosing and repairing vehicle problems. Mine worked well with great accuracy.
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