Question about GMC Sierra 1500

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Service Engin Soon Light came on. My OBD2 port isn't working with my Snap on Scanner MT2500 Yet when I get it smoged their scanner works. Any ideas? I did try another type of scanner and had the same problem as the Snap On.

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DLC connector doesnt work when i plug scanner into it

Posted on Oct 12, 2009

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CHECK YOUR SCANNER 9 VOLT BATTERY ON THE SIDE.YOU NEED 9 VOLT BATTERY TO POWER IT UP.BEFORE HOOK TO THE DLC.

Posted on Aug 02, 2009

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