dan woodland
+1y
The wiper motor isn't supplied from the dash harness. It's fed directly from the harness behind the dash (on the fire wall inside the cab) and emerges from the passenger fender well. There are four blue wires and one black.
Make sure you have them all matched up correctly. I believe there is a black with red ring, blue with white stripe, blue with red ring and blue with white stripe and red ring.