Wiring Diagram Windshield Wiper Relay

By | April 4, 2023

Wiring Diagram Windshield Wiper Relay

The windshield wiper relay is a small, but important, part of your car's electrical system. It's responsible for sending power to the windshield wiper motor, which in turn moves the wiper blades back and forth across the windshield. If the relay fails, the wipers won't work. The windshield wiper relay is typically located under the dashboard, near the fuse box. It's a small, black box with a few wires coming out of it. The relay has two terminals: a power terminal and a ground terminal. The power terminal is connected to the battery, and the ground terminal is connected to the chassis of the car. When the wiper switch is turned on, it sends a signal to the relay. The relay then closes the circuit between the power terminal and the ground terminal, sending power to the wiper motor. The wiper motor turns the wiper blades back and forth, clearing the windshield of rain, snow, or other debris. If the windshield wiper relay fails, the wipers won't work. There are a few things you can check to troubleshoot the problem. First, check the fuse for the wiper motor. If the fuse is blown, replace it with a new one. If the fuse is not blown, then the relay is likely the problem. To test the relay, you can use a multimeter. Set the multimeter to the ohms setting. Connect the positive lead of the multimeter to the power terminal of the relay, and the negative lead to the ground terminal. If the relay is good, the multimeter should show a reading of zero ohms. If the multimeter shows an infinite resistance, then the relay is bad and needs to be replaced. Replacing the windshield wiper relay is a relatively simple task. You can usually find a replacement relay at your local auto parts store. To replace the relay, disconnect the battery, remove the old relay, and install the new relay. Be sure to connect the relay to the correct terminals. Once you've installed the new relay, reconnect the battery and test the wipers. If the wipers now work, then you've successfully fixed the problem. ## How to Wire a Windshield Wiper Relay Wiring a windshield wiper relay is a simple task that can be completed in a few minutes. Here are the steps involved: 1.

Locate the windshield wiper relay.

The relay is typically located under the dashboard, near the fuse box. It's a small, black box with a few wires coming out of it. 2.

Identify the terminals on the relay.

The relay has two terminals: a power terminal and a ground terminal. The power terminal is usually marked with a "+" symbol, and the ground terminal is usually marked with a "-" symbol. 3.

Connect the power wire to the power terminal.

The power wire is usually a red wire. Connect it to the power terminal on the relay. 4.

Connect the ground wire to the ground terminal.

The ground wire is usually a black wire. Connect it to the ground terminal on the relay. 5.

Test the relay.

Turn on the ignition and turn on the windshield wipers. The wipers should now work. If the wipers do not work, check the following: * Make sure that the relay is installed correctly. * Make sure that the power and ground wires are connected to the correct terminals. * Make sure that the fuse for the windshield wipers is not blown. If you continue to have problems, it is best to have the relay checked by a qualified technician. ## Conclusion The windshield wiper relay is a small, but important, part of your car's electrical system. It's responsible for sending power to the windshield wiper motor, which in turn moves the wiper blades back and forth across the windshield. If the relay fails, the wipers won't work. Wiring a windshield wiper relay is a simple task that can be completed in a few minutes. By following the steps in this article, you can easily replace a faulty relay and get your windshield wipers working again.


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