Help with crank/cam relearn

Hello, having trouble with my 2011 3.6 dodge caravan, had to replace cranknpositikn sensor. So now I'm trying to relearn, to problem I'm having is every time I go to do it, the scanner says my coolant temp is -27. But everywhere else it reads just fine, within the scanner and the vehicle its self. So i don't know if it is my collant sensor or not. Pictures attached.