Okay,
I found the relay, it is behind the left side paneling in the rear of the runner. Not the easiest to get to, and if you are not careful you could crack your paneling. I must tell you this relay only runs all the features on the rear of the vehichle. It runs your power window, your rear window lock switch, rear wiper motor ect....
Now if your front wipers don't work, and your front windows don't work, along with your rear window problems...... You have a bigger problem. or should say, probably, multible problems. Keep me informed I will help as much as I can.
Cheers
P