My son bought a new 2005 Titan and the fuel gauge doesn't work. It shows a full tank. Of course, its in warranty and can get it fixed but curious if there's something he can check ( fuse, connector, etc) to avoid having to give up the truck for a minor thing that he can easily fix himself. Appreciate any insight you may give.

Update to my previous post. The sending unit in the tank had to be replaced. All better now.