What is a front windscreen wiper motor, and what does it do?

The front windscreen wiper motor of the car moves the blade’s arms, which are present in the car’s front screen. It produces a torque that rotates the edges of the wiper. It washes any dirt on the screen accurately.

The wipers start to rotate when the switch is on of the motor. The current flow through the cables from the engine Bay to the blade, and it starts to move up and down for the cleaning action of the car’s screen. The motor is near the vehicle’s steering, just below the wiper cowl.

Can you replace it yourself?

First of all, you diagnose the fault in the motor. If you consider that the engine is entirely out of order, you should restore it. The replacement mechanism of the wiper motor is divided into two to face it, such as removal and installation of the engine.

Removal of faulty motor

1. First, you remove the wires from the battery by opening the hood of the car
2. Next, locate the motor, which is just below the viper called and disconnect the electrical connections.
3. Now disjoin the wiper’s arms, followed by the wiper trim and the cowl of the wiper.
4. Now dislocate the wiper system, which has linkage with the transmission.
5. Keep it aside at the end of the old motor from the wiper transmission

Phase of installation

1. First of all, you have to confirm that you have selected the suitable motor according to your vehicle and that it is free of rust.
2. Now locate the repaired motor with transmission linkage in its place.
3. The remaining parts are replaced, such as wiper cowl, mounting bores, thread bores, blade’s arms, and trim.
4. Reconnect the electrical connections to the motor and the battery’s cables.
5. Finally, evaluate the replaced motor by a test drive

It would be best to remember the following things while replacing car parts, such as electric motors. Before replacing the wiper motor, you must confirm that you have selected the suitable engine according to the models of the car. After this, you must know the basic knowledge about the standard tools such as screwdrivers and ratchet sets. While unwinding the car’s spare parts, you must keep them on a side to prevent breakage.

After locating the wiper motor in its place, you must confirm that the wiper arms and its spare parts are in the exact correct position-wiper arms help in connecting the wiper motor with the blade. You also check the car parts, front voltage and rear voltage. Rear windows require more rear voltage for their proper functioning. Vehicle windscreen voltage is crucial for its better working.

Different Models of the wiper motors

Magnetic wiper motor: This type of wiper motor contains magnets, the most advanced feature. The attractions control the movement of wipers most accurately. At the same time, the vehicles of the 70s had the field wound for their rotation instead of a magnet.

Wiper motor by voltage: Wiper motor of 12 voltage and 24 voltage are mostly recommended. The front voltage of 12 is more accessible than the rear voltage. While the wiper motor of the front voltage of 24 consumes less current than the rear ones.

Wiper motor of front and rear side: Front wiper motor is involved in the movement of the arms on the front side of the car, while the rear wiper motor is located on the backside of the vehicle and controls the movement of rear blades.

Sub-parts of windscreen wipers motor

Housing is the steel coated outer part that protects the inner parts of the motor. Permanent magnets are attached to the inner side of the housing, which rotates the armature. The central rotating part of the motor is called the armature, made of copper wire. Brushes help in providing the current to armature. The shaft diameter directly affects the efficiency of a car.

A commutator is the rotating part of the motor, which is between the motor shaft and brushes. Brush plate assembly helps hold the meetings and supplies the power to the engine. The gearbox contains worm gear, gear wheel, and parking limit switch.

Identifying issues of failure and troubleshooting them

The functioning of the front and the rear windscreen is the same. Prices of which may vary. Most common front wiper problems include fault in the relay, switch, motor, wiring, control module, and a blown a fuse. Their causes and troubleshooting are enlisted below.

• Blown fuse: A blown a fuse is the primary component that checks motors‘ functioning. It is a common cause of fault in wipers working. In case of fuse gets blown, then remove the fuse with the help of the tool supplied in the box grab. Most of the recent cars use mini-sized fuses. Blowing occurs most frequently in small-sized fuses than the larger ones.
• Faulty relay: A relay is a simple electronic circuit that controls an enormous current power with the help of a small current supplied to it. The wiper system contains two relays. One acts as a switch, and the other is used for changing speed.
• If the sound does not appear, then it means that there is some problem with any component of the wiper motor. While clicking sound shows its smooth efficiency. It’s pretty easy to troubleshoot this fault. Take a second relay from the fuse box if present. Then make connections identical to the previous one and swap them. Now check the wiper functioning once again.
• Faulty motor: Fault in wiper motor may cause partial or permanent inactivation of the wiper blade. Examine the load side on pins 87 and 30, which provide power to the wiper motor. For this, check the power at pin 30. If it is not, then trace out the faulty wire.

After examining the engine and there is no fault, check the control module. Here you have to check the control side of the relay circuit. Check the power at pin 86. If it is OK, it shows that the wiper relay is under the control module’s control.

• Faulty switch: It is not easy to diagnose the fault in a button like a relay. To identify it quickly, check the relevant wiring diagram. Otherwise, efforts will go unsuccessful.
• Faulty wiring: Weakness in the wiring system is most challenging to find out. A wiggle test may be opted to find out the problem, but it is not guaranteed. Wipers got activated for a moment when wires loom around the wiper motor. Loose wiring is indicated when the volt drop test indicates high potential difference and, in turn, high resistance.

Normal lifetime

Windscreen wiper motors, on average, can wipe up to 1.5 million. However, its efficiency and working durability also depend on other environmental factors like snow and rain. It also depends on the material nature from which this wiper is made.

Other parts to replace

To get access to the wiper windscreen motor, you first have to remove the wiper blades and then cowl with the help of a wiper removal tool. Then you will unplug and then unbolt your faulty wiper motor. Here, it is unplugged from the gearbox connected with blades.

Then you have to add a new one wiper motor. After this, make your vehicle’s motor connection with an assembly, including a gearbox. Then reinstall the cowl with clips. Once installation is done, you have to reinstall wiper blades and arms onto the gearbox assembly in your car.

How to make sure you purchase the right part for your exact car

Visit autoparts-24.com to purchase the exact car parts. You need to enter the vehicle’s registration number and select the pieces of your car you want to buy. Prices are also mentioned. These manufacturers are efficient in their skills. There are various payment ways which you can opt like, PayPal, credit card and any other. Shipment is released after placing your order, and it is free of cost for the UK and many other countries enlisted on their website. Return policy is also there if you receive broken car parts.

Final Thought

The windscreen motor of the car’s front side is essential for cleaning the dust or debris from it. The replacement of a faulty motor can occur by yourself with basic knowledge of tools. You can purchase it at autoparts-24.com at fair prices with professional manufacturers. It provides free shipping in the UK and many other countries.