Wipers does not work: possible causes and ways to solve the problem. What to do if the wipers stopped in the middle of the glass wipers on the car do not work

Automotive wipers - an integral attribute of any car, about which, as a rule, recall only in case of falling out of any precipitation (rain, snow). Under conditions of adverse visibility, the wipers purify windshield Car, providing the driver the necessary review.

In the general case, the design of automotive wipers provides the work of janitors in three modes:

• slow;
• intermittent;
• fast.

Three-speed windshield work system is one of the most weak places Any car. This is especially true of domestic machines, in which the wipers often do not return to work in initial position, and stop the middle of the glass.

Stopping the janitors in the middle of the windshield is able to derive anyone, even the most calm driver, as it is limited to the review.In addition, wipers, stopping in the middle of the glass while working, constantly reminding the presence of a malfunction.

The reasons that lead to the stop of the janitors in the middle of the glass is quite a lot, and most of them can be eliminated themselves.

Wiper drive device

The wipers are powered by a small DC electric motor, which is equipped with a built-in gearbox.

Anchor of the motor installed three brushes, with which three modes of operation of the entire system are provided. Moreover, electrical circuit The work management of wipers includes:

• subwoofer switch mode switch;
• c2 type 524.3747 relay, which includes intermittent mode work;
• additional relay;
• limit switch;
• bimetallic fuse;

Bimetallic fuse and terminal switch are located in a gearbox of an electric motor, and all other elements of the circuit are placed in mounting blockinstalled in open space car. All elements of the circuit of electrical principal are connected to each other with wires and mounting pads.

Causes causing stopping wipers

Among the reasons that cause the stopping of janitors in the middle of the windshield vehicleMost often found:

1. Fault contact group Motor gear.
2. Disorders in the operation of the limit switch.
3. Wear or painting the teeth of the drive slots of janitors.
4. Incorrect assembly of wiper elements after repair.
5. Faults of the electric motor or its switch.

Ways to eliminate faults

If the wipers began to stop in the middle of the windshield of the car, you must perform the following steps:

• check whether the jarors are properly dressed on the drive slots and the state of the trapezion. Special attention must be paid to the drive crank. When the assembly errors are detected, they must be eliminated;
• carefully inspect the drive slots. They can get out, break or wear out, as a result of which the slots slip and wipers are not returned to its original position. Sometimes the janitor's lever can jump from her place.

The defect is eliminated by replacing worn items.

Tip! If the wipers began to stop the glass in the middle during the movement, and one hundred people are not observed nearby, it is possible to eliminate the defect, if there is a drill and drill in the trunk. Drilling a few holes can be temporarily consolidated by a wiper lever using well-made materials. To reduce friction, refinement sites need to be thickly lubricate any lubricant material.

Next operation - checking the integrity of the wiring. To do this, it is necessary not to turn off the ignition to check the voltage on the drive connector. The voltage value should be 12 V. In the absence of voltage on the contacts of the connector, it is necessary sequentially, starting with the fuse in the mounting unit, check the integrity of the wiring and serviceability of the relay. Detected faults need to be eliminated.

Also, wipers may not return to its original position due to the defect of the electromotor itself or its switch. In this case, it is necessary to replace the faulty electromotor. Avtolyutemner may encounter with other, more complex faults that lead to the stop of janitors as in the middle of the windshield and in any other position. In this case, it will be more correct to refer to the specialists who will quickly detect and eliminate the malfunction.

Interesting! Some motorists drew attention to the fact that in the winter time of the year, the wipers who stopped in the middle of the windshield fall into the zone of its blowing hot air. Thus, hardened on a strong frost, the elastic elements of wipers are taped simultaneously with the icing glass during the warming up power aggregate Auto after a long parking, which contributes to an increase in service life.

Therefore, it appeared original solution: When parking a car in a strong frost, it is forced to stop the brushes on the middle of the windshield. To do this, you just need to break the windbreaker drive chain and install an additional switch to dashboard car.

Having parked the car, for example, at night, the wipers in the middle of the windshield are stopped with the switch.In the morning, heating it, with the help of the same switch returned wiper into a transport (initial) state.

The poor-quality work of any node and the element of your car is not just discomfort on the trip, but also a certain irritating factor. Every time you have to deal with the fact that any subject of technology does not work with a decent way and does not offer sufficiently high quality functioning. It is especially difficult to survive such for idealists, whose all should work on summit And without problems. One of the most annoying troubleshooting options is the failure of the janitor. If the windshield wipers stopped working, mashered arbitrarily or stop along with the shutdown of the control knob directly in the middle of the glass, it is worth thinking about possible failures. Here you should select several main nodes that can break. The trapezium, the fuse of janitors, the discontinuous engine cleaner relay, the power knob and other elements.

You can find the reason and independently, as well as contact the help of specialized forums where such problems are discussing. Often on the forums you will find the same symptoms of the problem and can easily repair your car. If the wipers stopped working, they will have to do something fast enough. In this case, you will have to experience significant difficulties when traveling to rainy or just wet weather. In winter, the lack of opportunity to clean the glass from the sticking dirt and constantly sticking snow simply will not let you go to the wheel normally. You will have every two minutes to stop and clean the windshield. Let's look at the most common problems with janitor in modern cars.

The trapezium - the mechanism of the immediate work of janitors

One of the most complex mechanisms in the wint system is a trapezium. To date, no car manufacturer does not have such a reliable janner drive mechanism to ensure the durable operation of the device. Banal scanning of brushes or excessive focusing in glass, improper turning on janitors, facing the glass in winter - all these reasons may be destructive for a trapezium. Among the possibilities of restoring this mechanism, it is worth allocating only a few possible steps:

• acquisition of a new trapezium is often the best step for domestic carswho have the mechanism of janitors worth about 1000-1500 rubles;
• for foreign cars, the acquisition of a new trapezium will cost fabulous money, so in this case it is necessary to repair and restore broken parts;
• often, the trapezoids fail the bushings, and tips, which are often plastic and are terribly transporting frosts, so they can be simply replaced;
• if it is not easy to find Repair Kit for a trapezoid on your car, you can try to install bushings and other parts from other cars close in class;
• directly replace the trapezoid is needed if even repair work Do not remove the problem, or after repair, the mechanism started tapping when working.

Any sounds coming from the trapezium may be precursor of her death. This is exactly the sign that speaks about a possible way out of the entire device. However, changing the trapecy immediately after the occurrence unpleasant sounds Do not. Before the replacement, you can wait until the device fails or try to eliminate the sound, tightening the components of the trapeze using standard tools. It is not difficult and can be performed directly in your garage.

There is no intermittent janitor regime - we are looking for a relay

Often, together with the lack of intermittent mode, problems arise with the return of the wiper brush to its original position. In this case, the culprit of the situation is the burnt relay. In this case, the mode of continuous vanity of the wiper brush is present, as well as the mode of accelerated glasses cleansing. These options for the work of the wiper are provided by the relay, they are implemented directly from the handle to incorporate the operating modes of the janitor. The relay at the failure is necessary to simply replace by performing such a procedure:

• search for a relay installation site in your car - will help the forums, instruction manual for the car or recommendations of your car repair professionals;
• next, the non-working relay should be removed from the installation site, rewrite the device number in order not to make a mistake when choosing a new electric device to replace;
• go to the store or order on the Internet the relay of the original production with the same number according to the catalog to ensure the normal work of the janitor by car;
• having received a device in hand, see it well, make sure that this is the element that initially at the factory was installed in your car;
• turn off the ignition, be sure to check that the knob of turning on the janitors was on the "off" position and insert the relay into the slot where the non-working device was seized;
• include ignition and check the quality of janitors, taking into account the new installed electrical part.

Modes of janitor's work on budget cars It is often quite poor, so you can develop them by setting the relay from the same manufacturer, but with other parameters. For example, the installation is not a simple relay of janitors on domestic cars in basic configuration, And a special relay with adjustable pause brushes. This is a good option that can significantly improve emotions from traveling by car and facilitate the driver's work.

Fuses and other electrical connections

Not the last option in the system of work of the janitors are electrical connections and chains. First of all, it is worth checking the fuses that have a property failure and simply not to skip the electric current to the right place. Fuses from most cars are under the hood, some models should be explored for the fuse block in the cabin.

One of possible problems There may also be torn wires. If, for example, after the garage service, you do not work wipers, it is possible that the masters cut the wires and did not correct the problem. You should trace the chain of janitors, if there is such an opportunity, and it is better to take the car to a normal station and order proper restoration of this problem.

Steal Switches - Common Cause

Wipers in most modern cars Included with the help of stealless switches in the form of levers with data on them on the modes of operation of the equipment. These levers must work efficiently and have the necessary signals to turn on janitors. Often, the handle fails, the switch does not send the desired signals, because of this, the janitors are directly triggered. The main tasks in this case are as follows:

• it is necessary to remove the plastic parts of the watertic column waters to get directly to the installation of janitor switches;
• in most cars, switches are removed very simply, the maximum work waiting for you will be unscrewing several bolts;
• after removing the switch, you can check its operation using the tester, connecting contacts alternately to different terminals and including the modes of janitor's work;
• if the switch really failed, it should be simply changed to a new one, setting as simple as the disassembly was made;
• in case the switch works, you will have to search for other causes of malfunction, it is possible that the reasons are in the area of \u200b\u200bconnecting the switch.

Often, the wires that need to be returned to the place are often separated from the terminals of this steering switch. Most likely, after carrying out a full revision electrical system together with switches and other important technical aspectsYou can determine the problem and easily eliminate it. For this, no special tools and abilities do not even need. It will be enough for you to fulfill the high-quality restoration of all uncomplicated janitor systems. We offer a small video about how to cope with the problem, if the wipers suddenly stopped working:

Let's sum up

If the reliable work of the wiper is your priority, you should pay attention to all possible options Release details. The knocking trapezium should attract your attention and in a certain way to get learning the situation. Most likely, the knock will lead to the fact that the device will soon be changed to new and buy quality details to replace. But it is possible that it is easy to get to the trapezium and pull the fastenings of its items to remove the knock and perfectly exploit the device further.

The quality work of janitors is necessary in any car, so you should immediately solve all the problems that arise, taking into account their characteristics and technical difficulties. Replacing the relay can be performed in garage conditionsBut change the trapezium and the engine janitors is better in the service center. So you can without any particular problems get the necessary possibilities of operation of the machine and get the necessary qualities of the operation of peripheral devices. Have you ever encountered faults in the work of janitors?

Undoubtedly if you do not work wipers The movement of the car becomes dangerous in bad weather. In this article we will touch on 7 reasons for which the wipers can stop working. First we will discuss simple reasons Then we will move to more complex.

1) Blocked fuse

It is a weak chain element in order to protect other devices and devices. In this case, the fuse protects the wiper electric motor.

In any case, troubleshooting is best started with fuses. Since the blown fuse is pretty a frequent reason for which the wipers stop working.

In order to find out the location of the fuse, you must look at the instruction manual for a particular car.

2) Malfunction in wiring and contacts

The following is to pay attention to the integrity of the wiring, as well as on the contacts in the connectors. Over time, contacts are oxidized and this can affect the work of janitors. Oxidized contacts must be cleared.

3) Faulty relay

The relay malfunction can be revealed by the non-working intermittent regime of janitors. If in slow and fast mode, the wipers work properly, and then they do not work in the intermittent, then it is necessary to replace the relays of janitor.

4) Malfunctions fastening janitors

Over time, the fastening of the janitor can relax because of this, wipers can stop moving. Because the motorcycle of janits can not shift the places weakening the janitor. In order to correct the situation, you must tighten the nut of a weaker janitor.

5) Faulty block control unit

Thanks to the control unit, there is an opportunity to switch the mode of janitor's operation. Frequent cause Not the performance of the steering switch of janitors is the oxidation of contacts. If all the elements of wipers work, and the wipers still refuse to work. Then you have to replace the control unit by janitor.

6) Faulty motor twist

If the motorcycle of the janitors is defective, the wipers will stop moving in general, which is not surprising. In order to detect the signs of the Motor's life, check the voltage in the electromotor connector. The voltage of the motorcycle janitor must be the same as the battery. If so it means alive.

Disabled wipers not only create inconvenience to the driver while driving in the rain or snowfall, but also can cause a traffic accident. Having found a similar breakdown in bad weather, it is better to give up a trip, and take measures to eliminate it.

In this article we will talk about the reasons why the wiper does not work, as well as consider the methods of eliminating them on the example of the VAZ-2114 car.

Windshield Wiper Design

The wipers in the "fourteenth" are driven by means of a mechanism consisting of:

• electric motor;
• control unit;
• electrical protection elements;
• drives (trapezium);
• leashes with brushes.

Engine

In motion, the wipers are given with the help of an electric motor located under the hood near the partition separating motor compartment and salon. It has a built-in and equipped with three brushes. It is they who allow you to adjust the speed of moving the brushes on the glass.

Control block

The janitor's work control unit is located on the steering column on the right side. Its role is to turn on the wiper and switch its high-speed modes.

The wiper control unit has 4 positions:

• the first (extreme lower) - the mechanism is turned off;
• second - wipers work in intermittent mode;
• the third - brushes are moving quickly;
• fourth - wipers move as quickly as possible.

Protective elements

Electrical protection of the wiper chain is carried out by the fuse. It is mainly located in the F-5 scheme. Here is the relay responsible for the work of janitors in the intermittent mode. In the diagram, it is denoted as K-2 or K-3.

Drive unit

Effort from the electric motor to leashes of brushes is transmitted using a trapezium. It is a system of thrust and levers that convert the torque rotating moment into the reciprocating movement of janitors. The trapezium is also located under the hood, next to the electric motor.

Leashes and brushes

Every janitor consists of a leash and brush. They are connected to each other by means of a special fastening. The leash performs the function of the lever, transmitting the brush the effort from the crank trapezium. It is joined by the shaft of the crank, through the slots and the clamping nut.

Principle of operation of the mechanism

In order to find the reason why the wiper does not work, it is necessary to understand how its mechanism works. And it works as follows. When we move the wiper handle in the first position, the voltage is fed to the electric motor through the relay. Thanks to him, the wipers move in the intermittent mode, i.e., with intervals between the cheeks. With quick mode, they are moved with less long pauses. Moving the handle to the extreme top position makes the wipers move as quickly as possible (without intervals).

Among the most common problems associated with the work of the windshield cleaning mechanism can be allocated:

• opening in the electrical circuit (contact oxidation, disconnection of connectors, wiring breaks);
• the failure of the relay;
• malfunction of the control unit switch;
• wear brushes or closure (cliff) in the windings of the electric motor;
• jamming the drive levers (trapezium);
• wear slot slips.

Fuse

Noticing that wiper wipers stopped working, check the fuse first. It is he who is most often the cause of a malfunction. It is checked by the "transk" tester. An overwhelming protective element must be simply replaced, after which check the operation of the mechanism.

Cliff in chain

If after replacing the fuse, the wiper brushes do not work, problems with wiring are possible. Check if the contact in the connectors is not disturbed:

• control unit;
• relay;
• electric motor.

In case of detection on the contacts of the connectors of oxidation tracks, clean them with a shallow sandpaper and treat rust (WD-40) liquid.

Breakdown relay

Another reason why the wiper does not work, there may be a relay. First, remove it from landing In the mounting block and insert back. Often the problem lies in the banal oxidation of contacts. If it did not help, we leave it in the mounting block and go to the salon.

The wiper relay responds only for its work in the intermittent mode, therefore, in the fast and very fast modes it does not participate. Turn on the ignition and translate the switching knob of the wipers to the extreme upper position. Ukrainians earned? Change relays. By the way, his catalog number for the "fourteenth" 52.3747 or 525.3747, but it is worth it about 150 rubles. Slightly more expensive (about 250 rubles) will cost an adjustable relay of janitor, which will allow to adjust the duration of the pause between their waxes.

Adjusting the delay occurs by passing the mode of switching modes from the "On" position In the second position at which wiper works are intermittent. At the same time, they start moving in normal mode, with an excerpt of about 4 seconds. Next, the knob is translated into the "Off" position, and time begins for a programmable pause. The next time you turn on the janitors to the intermittent mode, the resistant gap will be respected.

Control unit malfunction

The sign of a malfunction of the control unit is the absence of a wiper mechanism reaction with a well-good safety fuse, an electric motor and a wiring.

Often he fails because mechanical breakdown, and due to the oxidation of contacts. To detect possible reasons, the block will have to disassemble, inspect and, if necessary, clean the contact elements.

If this does not help, the block should be replaced.

Problems with electric motor

After checking the wiring and the elements of protection of the wiper chain, and without finding a malfunction, diagnose the electric motor, which drives its mechanism. For this, the engine is better dismantled.

Having done this, turn on the ignition and move the shifting knob of the janitor's work block in a fast or very fast mode. Use the multimeter to measure the voltage in the motor connector. The device must show the voltage as well as on rechargeable battery. Making sure that the current comes to the electric motor, and it does not start, it can be concluded that the wiper does not work precisely because of the engine malfunction.

Most often it happens due to wear of current-wheeling brushes, but sometimes the problem lies and in the closure of turns of any of the windings. The electric motor can be tried to repair, replacing the brushes, or restoring the winding, but it is easier to buy a new one. It costs within a thousand rubles.

Malfunction of trapezium and leashes

The trapezium itself fails to be extremely rare, because in order to break it, a considerable effort will be required. In most cases, problems with it occur after repair or replace the drive levers.

But as for the leashes, they are often broken. The main cause of a malfunction is the wear of the slots. The fact is that they are made of aluminum, therefore even a small effort attached towards the opposite movement of janitors can cause their "jamming". In this situation, the output is one - replacement.

VAZ-2114 is equipped with a cleaner rear glass. Unfortunately, he sometimes fails. Fortunately, there are no fuses and relays. The rear windscreen mechanism consists of a leash with a brush. Its inclusion is carried out by switching the handle from itself (horizontally).

The diagnosis of the rear wiper is also produced by measuring the voltage on the engine connector. If it is served, you will have to either repair, or buy a new electric motor.

Disabled is capable of literally immobilize the car, because even if everything else is properly, it is simply impossible to go on a rainy, snowy or just dirty weather.

rules road completely unequivocally prohibit the operation of the car with a non-working wiper From the driver's side, if the weather requires the use of the wiper (it is raining, snow or on the roads just dirty).

Mechanism of janitors On the car, as a rule, made very reliable. Usually breakdowns occur for two reasons:

1. Strong wear of the system elements or the lack of lubricant where it should be. Wiper system, like any other mechanism, requires periodic maintenance and audit. True, thanks to the reliability of the design, it is not necessary to do it very often.

2. Incorrect operation of wipers. For example, in winter before enable wipesThey need to be "whipped" from, otherwise the fuse, a motor, or to split the thrust can be burned.

Most often meet the following problems with wiper:

1. Wipers do not work in any of the modes, the sound of the motor does not hear. Causes can be in wiring, connectors, switch itself or motor gearbox.

2. The intermittent mode of the janitor's work does not work. Here the problem may be in a relay or switch of janitors.

3. Wipers work, but slowly. This may occur due to problems with the gear motor, the oxidation and rust of the mechanism (need cleaning and lubrication) or incorrect installation.

4. You can hear how the motor works, but the wipers do not move. In this case, most likely, thrust or contact elements were broken.

5. The lever of the management of janitor does not work.Here the problem is most likely in oxidation, bending or bug of contacts inside the lever. The lever you need to remove, disassemble, clean lubricate, and if necessary, adjust or fall through contacts.

6. Wipers are not returned to its original position. Here, the reason may be errors when installing, malfunction of the contact group of the gearbox, bummer or wear of the slots on the drive mechanism of the brushes.

7. The wipers are not triggered while the glass washer is turned on. The reason may be failed to the steering wheel switch or wiring problems and connections.

8. Brushes are poorly cleaned glass.There may be two problems here. The first - brushes were worn and need to be replaced. The second is a bad fit brushes to the glass. In this case, you need to see if any foreign objects are prevented by the janitor to fit normally. If not, then the reason is in the engine cleaner mechanism. It needs to be disassembled and search for worn items.

Timely maintenance of the wiper mechanism will eliminate any problems with it, since the mechanism itself is simple and reliable.