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International Automotive Technicians Network
Re: GM Reprogramming Error E4399
Posted to Technical Discussion Forum on 2/6/2015 1 Reply

Hi John, Yes the original failure happened when I was using the "Tech 2 J2534" option with the online version of GM TIS SPS. After the programming failed, I also tried the "Legacy" pass thru method online as well with no luck. Thanks for the reply!

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