Question about 2005 GMC Sierra 2500HD 4WD

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My code reader is not coming on when I plug it in,

My code reader is not coming on when I plug it into my 2005 GMC Sierra, it works fine in my Acura. Does GM use their own code reader?

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The Sierra may possibly have a blown fuse.Typically the lighter or accessory ports power the OBD II connector.

Posted on Jul 05, 2010

Testimonial: "That is exactly what it was, the foses for the lighter and 12V power outlet were both blown. Thanks alot."

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