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Re: GMC c6500 parking brake module DTCs
Posted to HD/Fleet Forum on 4/23/2020

This is all I got! Read the diag code part carefully. It reads out voltage under a few codes. Easy to confuse them with actual diag codes. Last one I got working was about 5 years ago. Had to get the module from a yard. Again email me if these files don't make... Login to read more.

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