2015 RAM Cargo Van - Where is the fan relay?

van over heating. where is fan relay? how to tell if 50 amp fuse is blown, this one is diffrent from ones i have seen?

Check the fuse with a test light or volt meter, if the fuse is good it will have power to both ends, if it is blown, it will have power on one end.

Browsing online I see there have been a LOT of fan failures on these vehicles.

It;s in the fuse box

In the fuse box is great because the owners manual shows everything in there. I fixed my power outlets just last month by installing a fuse properly. I still want to find out if there is a three pronged fuse to fit the odd three pronged socket!