Check your fuses. The wiper fuse may be blown.
Look at the fuses behind the glove box.
no blown fuses. and I have changed most all of the relays
check for blown fuses
Check your fuse panel in your vehicle to see if a fuse is blown. Fuses are very inexpensive and an easy fix! good luck!
check your fuse box for blown fuses
It's probably a faulty keyswitch.
Normally its a fuse. Check your owner's manual to find where the fuses are and which one is related to the wipers.
Sounds like a blown fuse. Your owner's manual is the best place to locate your fuse box(es) and identify your fuses. Don't rule out that your issue is being caused by a bad bulb too - so check fuses and bulbs. See sources and related links below for bulb information.
Could be blown fuses, a blown relay, there may be a short in the circuit(s) somewhere... could be a number of reasons.