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How To Test A Wiper Motor

Driving in the rain can be a treacherous experience. And if you’re not careful, that slippery road can lead to costly repairs or even a car crash. To help you stay safe on the roads, it’s important to test your car’s wipers regularly. This is especially true if you live in an area that experiences heavy rainfall. If you don’t know how to test your wipers, don’t worry; we have a guide for you. In this article, we will teach you how to test your wiper motor and ensure that it is working properly. By testing your wiper motor regularly, you will not only keep yourself safe on the roads, but also save money on repairs down the line.

What is a Wiper Motor?

A wiper motor is an essential part of your car’s system. When you turn the knob to activate the wipers, the wiper motor rotates the blades on the windshield. Sometimes when there is a problem with a wiper motor, it won’t work at all or it may only work intermittently. In order to test a wiper motor, you will need a voltmeter and some simple tools. Here’s how to do it:

1) Pull out your car’s center console and locate and open the hood.

2) Remove the cover over the wiper motor using a screwdriver.

3) Locate and remove two screws that hold the housing in place (these are typically located near where the control knobs attach).

4) Carefully pull off the housing so that you can see the blades and motor assembly inside. If there is debris or corrosion on any of these components, gently clean them before testing.

5) Disconnect both power sources (typically yellow/black wires connected to each side of the motor). Place one end of your voltmeter on one power wire and connect the other end to ground (a metal area beneath your car). Note how much voltage is present at this point.

6) Reconnect both power sources and turn on your wipers by turning on either control knob. Watch as voltage begins to flow through the meter – if there is no voltage or

How to Test a Wiper Motor

Testing a wiper motor is an important part of ensuring that your vehicle is operating properly. By understanding how to test a wiper motor, you can ensure that the system is working as it should and correcting any issues quickly. There are several ways to test a wiper motor:

1. Use a volt meter to measure voltage at the power supply connector on the motor. Be sure to use the correct lead for your meter!

2. Check continuity between each wire leading from the connector to the motor. If there are breaks or missing wires, this will cause a low voltage reading.

3. Kill power to the system and check for continuity between each terminal on the motor. Compare this reading to continuity specs provided in the owner’s manual or on the motor itself. If there are any abnormalities, replace the wiper motor.

What to do if the Wiper Motor is Not Working

If the wiper motor is not working, there are a few things you can do to troubleshoot the issue. First, check to see if the wiper arm is properly connected to the wiper motor wheel. If it isn’t, reconnect it and try the wipers again. If that doesn’t work, try taking apart the wiper system and inspecting each component for damage or defective wiring. Finally, if all of those options fail to fix the problem, you may need to replace the wiper motor.


It’s important to keep your car clean and free of dirt, dust and other contaminants. One way to do this is by testing your wiper motor periodically. This can help you diagnose problems before they become too serious, and it also gives you an opportunity to replace the wiper motor if necessary. There are a few simple steps that you need to take in order to test your wiper motor: remove the cover from the wiper arm, plug the power cord into an electrical outlet and turn on the windshield wipers. If everything works as it should, the wipers will move back and forth across the windshield fluidly. If there is a problem with your wiper arm or power supply, however, the wipers may not move at all or they may only move intermittently. In this case, it might be worth getting a replacement wiper arm or power supply