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International Automotive Technicians Network
Re: Programming Used PCM on GM
Posted to Technical Discussion Forum on 1/15/2021

I programed a used 6l80 in a 15 silverado with a jbox not too long ago. I don't remember doing anything too crazy to make it happen. I advised against it because of issues I had read about here. The used car lot mechanic had already installed it so they said d... Login to read more.