ok, check your fuse box, both inside car and under the hood... look for anything that isn't obvious.
found out my gause fuse box was labeled "fog" when i don't have fog lights lol...
might as well check everything else since you're there...
if not a blown fuse
it may b the wiring...
i'm not sure exactly how the gen 3 is wired,
but if you look up this link
http://www.toyotanation.com/forum/t59805.html
it show's you how to take out the cluster gauge, which should be really close
to the gen 3...
in the back are connectors... there you can do a visual inspection
and hopefully that helps...