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Fortin INT-SL+ will not go into program mode

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I’m installing a Cool Start RS4-G5 along with a Fortin INT-SL+ Data interface module onto a 06 GMC Yukon XL Denali. When I hook up the module the light comes on and it blinks when I hit lock on the key fob but when I turn key to on the light goes off. I tried to start the vehicle with the remote and the vehicle started but shut off right away. Any help with this would be greatly appreciated.


asked Dec 20, 2018 in GMC by Brandon Weaver (140 points)

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