wiring diagramfor 1968 windshield wiper motor
The Wiper reStore on eBay will restore your core for $199.95. Search for wiper motor restoration service.
its the black cover right below the windshield, it covers the wiper motor.
under black plastic cover above wiper fluid tank.remove cover expose motor.
Open the hood and all the way in the back attached to the bulkhead in the middle you will find the wiper motor.
Fire, or power, to the wiper motor in a 1985 s10 Blazer comes from the battery, through the wiper switch and to the motor. Check the switch, fuse, and all connections to find the loss of power.
Go to an auto parts shop
You can find wiring schematics at autozone.com.
got to pop hood and it is up under the top farm where the wiper arms at on the lift side
Looking in my 1989 Chevy Celebrity manual I find a park relay inside the wiper motor but no reference to an external wiper relay. There is a fuse on the fuse block.
The 1998 Avensis wiper motor relay is located in the exterior fuse box. The exterior fuse box is located underneath the hood.
Sounds like your Wiper Motor may be going bad or you have a loose connection. I had that problem with my '91 APV. If I manually pulled on them they would start working but would eventually lock up again. They would also stop working when it was raining. It turned out to be a bad electrical connection in the wiper motor. If you wiggle the wires going into the wiper motor ( WATCH OUT FOR THE MOVING LINKAGE! ) you may find that that is the problem. Replace the motor and it should work.