It's easy to use, although if you're a newbie you might have to google the result or ask someone who knows the meaning of the code even after they've told you some description. Oddly it can't read my VIN for the 3 Toyotas I've tried (not supported) in the 97-07 range. Some have more data stream than others. Overall, this probably saves you the trouble of going to the store to read the code if you ever come across it.
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