I have a check engine light on and I was wonder how to know what the problem is using the scanner?
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I have a check engine light on and I was wonder how to know what the problem is using the scanner?
Hit the DTC button or go to Displays>>DTC's and Tests. Click the check mark button on the DTC window to refresh.
http://www.hptuners.com/help/getting_started_demos.htm
bottom of the page.