This link to fuse panels
may not be the same as yours but give it a try.
Near your HWH pump there is a fuse on line to pump in black fuse holder.
Under your front bumper drivers side WH has a ground post welded to frame of chassis on this ground post all your white wires from solenoids go to it make sure the ring wire connectors are clean and tight.
If loose nut take off wires clean and use di-electric grease and a star washer to keep nut tight on ground bolt.