Windshield wipers not working

Parts in the hazard light circuit don't have anything to do with the wiper circuit.

There is a large 40-amp fuse under the hood, number 18. Check that one, and check if there are twelve volts on both sides all the time. There are two test points on top. Next, there is a 10-amp blue fuse inside on the left side of the dash. Number 15. That one should have twelve volts on both sides when the ignition switch is on.

Before you get too involved, use a test light with the clip lead grounded at the battery's negative post or a paint-free point on the engine or body, then test for voltage right on the metal housing of the wiper motor. Turn all the switches on. If there is any voltage there, we will have to add a ground strap.

Swap the wiper relays with one of the other ones like it. There are two of them; a high/low relay and an on/off relay. Feel if they click when a helper turns the wiper switch on and off.

Did you find voltage on the motor housing?

Dandy. If you turn on the ignition switch and the wiper switch, then find voltage on the motor's housing, you'll find the motor will start to run if you push on it.

The motor is bolted to a metal plate, and that plate is mounted on three rubber bushings to isolate vibration from going into the passenger compartment. The motor has to be grounded to complete the electrical path for current to flow. Since the rubber bushings insulate that path, a brass strip of metal is added to one of the bushings. You'll see that strap riveted to the metal plate. It's about 3/4" wide and 2" long. The other end goes under the bolt head. That is where it can arc and burn away, creating a break in the circuit, and a dead motor. You may see it spark there when you push on the motor.

It is not practical to try to repair that connection. The motor might work if you simply tighten that bolt a little, but that is not a permanent fix. Instead, run a new ground wire between that plate and the car body. There is usually some other bolt on the body, nearby, that you can attach the wire to. On the plate, look for another bolt you can use. If there is none handy, drill a small hole in the plate, then run in a self-tapping screw the wire can be attached to.

Also, if you look at the gearbox end of the motor, there will be a round, flat cover, either plastic or metal, attached to it. That is part of the electrical connector. Some of those are held on with five rivets. Many are held on with five small screws. If yours has screws, you can loosen one, then attach that end of the wire to that.

The strip is on the plate this motor mounts to. The motor housing is an electrical connection, so if you just plugged it in and held onto it, the ground connection wasn't made. You'd have to connect a jumper wire from the motor's case to a paint-free point on the car's body.

All right! One in a row! Happy to hear it's solved.