turn signals and blower motor relay

check for bad bulb in rear and clean battery terminal ends and ground going to engine and body. also check ground at left hand front radiator support and trailer tow relays in power dist box. battery ground at rear of engine compartment.

I found the problem.It was a rusted off ground wire inside the cab on the passenger side behind plastic side cover in front of door.

I kind of figured it was something like that , that normally happens when ground wire is off someplace