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Street Smart · 12-30-2011, 10:08 PM

Let me know the year computer your using and i can double check, but I`m pretty sure it sends a ground to turn on the fan relay.

12-30-2011, 10:08 PM	#4
Street Smart Registered User Join Date: Dec 2009 Location: Brooklyn N.Y. Posts: 819	Re: TPI Swap Fan relay question Let me know the year computer your using and i can double check, but I`m pretty sure it sends a ground to turn on the fan relay. __________________ 1967 GMC Suburban, Supercharged 6.2 LS with a 6l80e , my 11 second tow vehicle! pic in my profile 1987 GMC CrewCab Dually 6.0 LS/6L90e, new tow pig. http://67-72chevytrucks.com/gallery/...=74049&cat=500