How do I know if my wiper relay is bad?

Symptoms of a Bad or Failing Intermittent Wiper Relay
  1. The windshield wiper blades have one speed.
  2. The windshield wiper blades don’t work.
  3. Wiper blades operate at speeds different than you selected.
  4. Humming noise when the wipers are on.

How do you change a wiper relay?

Part 1 of 1: Replacing your intermittent wiper relay
  1. Materials Needed.
  2. Step 1: Locate your relay. Many late model vehicles can have multiple locations for fuses and relays.
  3. Step 2: Remove the relay. With the ignition in the off position, remove the relay.
  4. Step 3: Install the new relay.

Where is windshield wiper relay?

In some vehicles, the wiper relay switch is inside the actual windshield wiper motor. If it fails, the entire motor needs to be replaced, as you can’t get parts to fix it.

What is a wiper relay on a car?

The Windshield Wiper Motor Relay is a part of your windshield wiper system. It controls the voltage input to the wiper motor. The relay senses the position of the wipers and transmits power to the wipers they are in their parked position.

Why does my wipers only work on high?

If the reading is made only on the high-speed terminal, the switch has failed. Inside the switch are a number of terminals that are sprung to make contact as the control is turned or slid like a lever; these contacts can lose their “springiness” and fail to make contact.

Why do my wipers only work sometimes?

If nothing works, an electrical problem could be the culprit, possibly a blown fuse. A bad fuse on its own doesn’t occur often, but occasionally, finding and changing a bad fuse can get your wipers working again.

How do you fix a windshield wiper motor?

What is the windshield wiper switch called?

It is variously called the combination switch, the dip beam switch, or the directional/wiper switch. The left hand stalk signals and cancels turn indications when moved up or down.