Start the truck, turn on the windshield wipers, they run for 10 seconds and then shut off. The wipers return to their parked position, i.e. they don't stop in the middle of the windshield.
I then shut off the ignition, restart, and wipers will not turn on at all. Will not turn on in the middle of a trip. Also not getting any wiper fluid wash (fluid is in the reservoir.)
Fuses are good. Any way to test the relays?
Any help is much appreciated,