Hey ya'll,

I'm working on a 2014 sierra 5.3 with a lt4 supercharger. After the install and getting it back from the tuner i noticed the electric fans are stuck on all of the time at about 30-40% even when the truck is bone cold. They do not ramp up or down no matter what the coolant temp is or a/c on or off. Also i cannot command any change with the vcm scanner. The tuner doesn't have a definitive answer and is super busy at the moment so i figured i would check here before bringing the truck back in. Anyone run into similar issues or have any possible fixes i could try? Thanks for the help.