How Do You Check A Wiper Motor Is Working?

27 Mar 2024 16:25
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How Do You Check A Wiper Motor Is Working?

A wiper motor is an important part of your car, and it's responsible for keeping your windshield clear of rain, snow, and other debris. If your wiper motor isn't working properly, it can be a major safety hazard. That's why it's important to know how to check if your wiper motor is working.

There are a few simple steps you can take to check if your wiper motor is working. First, turn on your wipers and listen for the sound of the motor. If you don't hear anything, it's possible that the motor is not working. Next, try moving the wiper blades by hand. If they move easily, it's possible that the motor is not getting power. Finally, you can check the fuses and wiring for the wiper motor. If any of these components are damaged, it could prevent the motor from working.

Visual inspection

Visual Inspection is a crucial step in checking a wiper motor. Start by visually inspecting the wiper motor to detect any obvious physical damage, such as cracks or corrosion in the casing. Check for loose or disconnected wires, which could prevent the motor from receiving power. Look for any signs of rust or excessive wear on the motor terminals.

Next, connect the wiper motor to a power source with the appropriate voltage and amperage. Observe whether the motor spins freely without any unusual noises or vibrations. Listen for any grinding or squealing sounds, which could indicate internal issues. Check if the motor continues to operate smoothly when the wiper blades are engaged.

Additionally, inspect the linkage between the wiper motor and the wiper blades. Ensure that the linkage is properly connected and free of any obstructions. Look for wear or damage to the linkage components, as it can affect the wiper motor's operation.

Finally, check for any signs of overheating, such as discoloration or a burning smell. If the wiper motor is overheating, it could indicate a more serious issue that requires professional attention. Therefore, it is advisable to address any visual issues promptly to prevent further damage or safety hazards.

Checking the fuses

Checking the fuses is an important step in troubleshooting a wiper motor. Fuses are designed to blow when too much current flows through them, protecting the electrical system from damage. A blown fuse can prevent the wiper motor from receiving power, so it's important to check the fuses if the wipers are not working.

To check the fuses, you will need a fuse tester or a multimeter. First, locate the fuse box. The fuse box is usually located under the dashboard or in the engine compartment. Once you have located the fuse box, open it and identify the fuse that is responsible for the wiper motor. The fuse will be labeled with a number or a diagram that indicates its function.

Check the power to the motor

If you suspect the problem lies with the motor itself, you can check its power supply. Use a multimeter to test for voltage at the motor's terminals. If there is no voltage, the problem may be with the wiring or the power source. If there is voltage, the motor may be faulty.

To check the wiring, disconnect the motor from the power source and use a multimeter to test for continuity between the motor's terminals and the power source. If there is no continuity, the wiring may be damaged and needs to be replaced.

If the wiring is intact, the motor is likely faulty and needs to be replaced. You can purchase a new wiper motor from an auto parts store or online retailer.

Wiper motor clicking

Wiper motor clicking

Wiper motors can make a clicking sound when they are not working properly. This can be caused by a number of issues, including a bad connection, a faulty motor, or a problem with the wiper linkage. If you hear a clicking sound when you turn on your wipers, it is important to have them inspected by a qualified mechanic.

One of the most common causes of wiper motor clicking is a bad connection. This can be caused by a loose wire, a corroded terminal, or a faulty switch. If the connection is not secure, the motor will not be able to get the power it needs to operate properly. This can cause the motor to overheat and make a clicking sound.

Clean the wiper motor

If your wiper motor is not working, one possible cause is that it is dirty. Over time, dirt and debris can build up on the motor, causing it to malfunction. To clean the wiper motor, you will need to remove it from the vehicle. Once the motor is removed, you can use a soft cloth and a mild detergent to clean the exterior of the motor. You can also use a compressed air can to blow out any dirt or debris from the motor. Once the motor is clean, you can reinstall it in the vehicle and test it to see if it is working properly.

If the wiper motor is still not working after cleaning it, there may be a more serious problem with the motor. In this case, you will need to take the vehicle to a mechanic to have it diagnosed and repaired.

Check the wiper transmission

Check the wiper transmission

Wiper motor relay location

To locate the wiper motor relay, refer to your vehicle's repair manual or consult an experienced mechanic. The relay is typically situated in the fuse box, which is usually found under the hood or dashboard. Once you've identified the fuse box, look for a relay labeled "wiper motor" or "wiper relay."

If you're unable to locate the wiper motor relay yourself, don't hesitate to consult a qualified mechanic for assistance. They will have the necessary knowledge and experience to quickly and accurately locate the relay for you.

By following these steps and referring to the appropriate resources, you'll be able to find the wiper motor relay and diagnose any issues with your wiper system efficiently.

Wiper motor replacement cost

The cost of replacing a wiper motor can vary depending on the type of vehicle and the complexity of the repair. In general, you can expect to pay between $100 and $500 for the parts and labor. If you are able to do the repair yourself, you may be able to save some money. However, it is important to note that replacing a wiper motor can be a complex and time-consuming task, so it is best to leave it to a professional if you are not comfortable doing it yourself.

If you are experiencing problems with your wipers, it is important to have them checked out by a mechanic as soon as possible. Faulty wipers can be a safety hazard, especially in inclement weather. A mechanic can diagnose the problem and recommend the best course of action.

Here are some tips for extending the life of your wiper motor: - Avoid using your wipers on dry glass. This can cause the motor to overheat and fail prematurely. - Clean your windshield regularly. This will help to remove dirt and debris that can clog the wiper motor and cause it to work harder. - Replace your wiper blades regularly. Worn wiper blades can cause the motor to work harder and fail prematurely.

Wiper motor troubleshooting

Wiper motor troubleshooting

Frequently Asked Questions

Can I inspect the wiper motor of the vehicle myself?

To check the wiper motor, you can start by inspecting the fuse box or relay that is connected to the motor. If the fuse is blown or the relay is faulty, it can prevent the motor from receiving power.

Are there any signs that indicate a faulty wiper motor?

Some common signs of a faulty wiper motor include: - The wipers not moving at all - The wipers moving slowly or erratically - The wipers not returning to their starting position - The wipers making a grinding or squealing noise

Can I replace the wiper motor myself, or should I hire a professional?

Replacing a wiper motor can be a complex task, and it is recommended to hire a professional mechanic to do the job. The mechanic will have the necessary tools and experience to safely and correctly replace the motor.

How often should I have the wiper motor checked?

It is recommended to have the wiper motor checked every 6 months or 12,000 miles, whichever comes first. This will help to ensure that the motor is in good working condition and that the wipers are functioning properly.


If the wiper motor is not working, you may need to replace it. This is a relatively simple process that can be completed in about an hour.

To replace the wiper motor, you will need the following tools:

  • Socket wrench
  • Wrench
  • Screwdriver
  • New wiper motor