Why intermittent wiper mode doesn't work and how to fix it

Nowadays you won’t surprise anyone with the presence of wipers. But if they are absent or malfunctioning, serious problems arise. Especially when it's raining or snowing outside.

Wipers can operate in several modes. It depends on the car itself and its functionality. Switching is carried out using the steering column lever. The driver can independently select the mode and speed, or set automatic operation associated with a rain sensor and more.

One of the modes is intermittent. Most often this is the first mode on the steering column switch. Its essence is that the brushes move from side to side, stopping for 2-3 seconds. This is one of the most popular modes.

But often car owners have to deal with situations where the wipers do not work. To be more precise, the desired mode does not work.

Wipers do not work intermittently

Hi all!
People, please tell me, without making fun of the ashtray, it’s such a mess. In short, in the 21093 2000 model, the wipers work in a strange way. There are no intermittent ones at all, they only work in the uppermost position of the shift lever at maximum speed. If during operation at max. Switch the speed lever to the 2nd position, then it works in slow mode. Then they stop randomly. If you go straight from 3rd to 1st, one cycle works and that’s it, crap. Accordingly, when you turn on the washer, the brushes also do not work. I changed the steering column switch to a known good one, VeDehoy processed the gear motor connector, it was clean, the fuses were good, I changed the plug. What haven't you done yet?

Discussion closed by moderator

In the 3rd position do they work at normal speed or slower than when everything was normal?

Re: On normal And when you turn it on 1-2 positions (and when the brushes do not move) you can hear clicks from under the hood like from a relay approximately every

No big deal. When you turn it on after the 3rd, then there is one cycle of operation, then a click and that’s it, it doesn’t move any further

Re: The wipers do not work intermittently, change the relay and everything will be OK

Changed it - didn't help *

Re: Wipers do not work intermittently. In short, in the 21093 2000 model, the wipers work in a strange way. There are no intermittent ones at all, they only work in the uppermost position of the shift lever at maximum speed. : If during operation at max. Switch the speed lever to the 2nd position, then it works in slow mode. Then they stop randomly. : If you go straight from 3rd to 1st, one cycle works and that’s it, crap. : Accordingly, when you turn on the washer, the brushes also do not work. : : I replaced the steering column switch with a known good one, and checked the connector, nothing fell off there, the contacts did not come off? You can also look at other connectors.

Got it, I'll take a look. Couldn't there be any ambushes in the gearmotor itself?

Re: I don't know. I think it’s unlikely - if it works in other modes. Try using a tester to see what kind of voltage the relay produces.

That's the whole point. The voltage in the gearmotor connector is present only on one contact (pink, it seems, wire)

I looked at the diagram. There is voltage in the gearmotor connector only on one contact (it looks like a pink wire)

Scheme from FaK, ChYa - a new sample. It seems like the voltage should be on white (comes from w11.9) and constantly on white and yellow (w11.18). but maybe I'm wrong.

Got it, I'll go to the FAK and graze *

Let's sum it up

If reliable operation of the windshield wiper is your priority, you should pay attention to all possible ways that parts may fail. The knocking trapeze should attract your attention and in a certain way force you to examine the situation. Most likely, the knocking will lead to the fact that you will soon have to replace the device with a new one and buy high-quality replacement parts. But it is quite possible that you just need to get to the trapezoid and tighten the fastenings of its parts in order to eliminate the knocking and continue to operate the device perfectly.

High-quality work of wipers is necessary in any car, so you should immediately solve all problems that arise, taking into account their features and technical difficulties. Replacing the relay can be done in a garage, but it is better to change the trapezoid and wiper motor in a service center. This way, you can get the necessary capabilities for operating the machine without any problems and acquire the necessary performance qualities of peripheral devices. Have you ever encountered problems with your wipers?

good afternoon, guys, this is a problem (the wipers work every other time (when you turn it on, you can hear that the motor is running but the wipers don’t turn, what could be the problem? Has anyone encountered this? and it doesn’t affect the speed either, no matter what you set, they work as if on 1 (VAZ 2109

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7 comments on “Guys, this is a problem: the wipers work every time you turn them on, you can hear that”

Maybe the nuts are loose, remove the wiper cap

maybe the mechanisms themselves have rusted, look, if the motor is hot, then they are definitely replacing the rocker assembly, it costs 700 manets

I had the same problem recently. The windshield wiper trapeze is rusty. changed everything and the fire. (located where the mounting block is in this plane)

The nuts are most likely loose

Maybe the windshield wiper springs have stretched?

look at the wiper nuts and the trapezoid tightening nut from the motors, you’ll see it at 13, maybe it’s loosened

the plastic gear in the gearbox may have screwed up, several teeth are missing...

Design of the VAZ-2114 windshield wiper

The windshield wiper on the VAZ-2114, as well as on other models, consists of the following components:

  • drive (electric motor with a long shaft);
  • gearbox;
  • lever system (trapezoid).

It is the last part that drives the wipers.

A worm is cut into the front of the electric motor rotor, which drives the main gear of the gearbox. When the windshield wiper turns on, voltage is supplied to the electric motor and the shaft begins to rotate, driving the gearbox. Thanks to it, the levers move, to which the ends of the wiper housings, located on the outside of the car body, are attached. There is a special hook at one end of the shaft. With its help, the moving contact of the windshield wiper stops in the extreme position is controlled.

Alternative

When choosing wipers, not only their size matters, but also the device, as well as the manufacturer. For VAZ 2110 of all years of manufacture there is one size for the wiper on the driver or passenger side - 20″ (wiper length 508 mm).

However, you should know that you can usually increase the size to 53 cm, but no more, otherwise the windshield wipers will not cope with the task assigned to them, and the drive may fail, because the leash is not designed for such a load. In addition, such wipers creak during operation and can operate jerkily.

If the size is chosen incorrectly, the mechanism will fail faster. In principle, many people use the “original” VAZ wipers and are satisfied with them. But it is possible to modify windshield wipers from other companies, often of higher quality.

For example, for many, frameless brushes (especially Boshevsky ones) are very attractive. They are compact and have a special leash mechanism. However, they do not look particularly nice on a VAZ, since their fastening to the arm of a regular frame wiper turns out to be massive. These brushes need some work.

The VAZ 2112/2111 model has a rear wiper, its size is 11″ (27.9 cm).

Both regular replacement and modification of wipers begin with disconnecting the negative terminal of the battery. Then you need to pull the wiper towards you and remove the brushes.

If there is a decorative trim, it should be removed. Unscrew the bolt and remove the old wiper. Be sure to compare the size of the new windshield wiper with the old one. It will be better if the size of the windshield wiper on the VAZ 2110 does not exceed its predecessor by more than 2 cm. Install everything in the reverse order.

Check to see if the new brushes are squeaking and how they obey the “commands” of the switch. They should work quickly at high engine speeds, and slowly at low and intermittent modes. That, in fact, is the entire repair of VAZ wipers.

Wiper control

The wipers are controlled from a switch mounted on the steering column, which allows the wiper to operate in several modes, necessary in different weather conditions. The VAZ-2114 car has three types of wiper movement:

  • intermittent mode;
  • constant low speed of movement;
  • constant high.

Often in VAZ cars the windshield wiper does not want to work in only one mode, so you need to know not only the design, but also the mechanism for controlling the glass cleaning system.

Refinement stages


Wiring
It is easy to modify or replace wipers. To do this you need to take several sequential steps:

  • Disconnect the negative cable from the battery;
  • Pull the wiper towards you;
  • Remove the existing brushes;
  • If there is a decorative trim, remove it;
  • Unscrew the mounting bolt, thereby removing the old wiper;
  • Compare the dimensions of the old and new cleaner;
  • Ideally, the new device should not exceed the old one by more than 20 millimeters;
  • Reverse the assembly procedure.

As you can see, changing windshield wipers is not difficult. But with the repair procedure, everything is somewhat different. But following the instructions, even an inexperienced VAZ 2110 owner will be able to do everything with his own hands.

Causes of malfunction and their elimination

It often happens that the wipers do not respond to switching modes. If you turn on the wipers and when you switch the lever you do not hear the sounds of the electric motor or the clicks of the relay, the reason may be hidden in three places:

In such a situation, you first need to check the functionality of the fuse. It is located on the circuit board designated F5. You can check its working condition using a conventional tester. You also need to check the bimetallic fuse located in the purifier gearbox. If the wipers on a VAZ-2114 stop working in winter, there is most likely one reason - severe frost. The same fuse prevents the windshield wiper from turning on in case of overheating or freezing of the blades to the windshield.

Next, you need to check the relay (“short circuit” on the circuit board). You need to find it and temporarily replace it with a new breaker, and then check the operation of the wipers. If the windshield wiper does not function, we continue to look for the problem area. It is quite difficult to independently verify the operation of the switch. It consists of a complex structure, so it is easier to change it than to try to repair it. If the turn signal refuses to work together with the windshield wiper, the problem area is the switch located under the steering wheel.

Dimensions

In fact, the size of the wipers on the VAZ 2114 plays a fairly large role in the quality and efficiency of glass cleaning.


Windshield wiper wiring diagram

If the standard length of the brushes is exceeded, the force of pressing the brush against the glass decreases, which reduces the efficiency of cleaning the surface. Plus, a device that is too large may begin to touch elements that no longer belong on the windshield. For example, the edges of a door.

Small brushes are also not good, because then the cleaning area is reduced and not the entire glass surface is cleaned, which would provide the required visibility for the driver.

Then what should be the size of these same brushes in the case of the “fourteenth” model?

  1. The windshield of the VAZ 2114 has two blades of the same size - 51 centimeters. The brush on the driver's side can be replaced with an element 53 centimeters long, but on the passenger's side it is important to leave 51 cm. Otherwise, a strip of cleaned water will remain on the glass between the driver and passenger.
  2. There is also a cleaner on the rear window of the VAZ 2114. But in this case, the size of the element is 30 centimeters. It is possible to install the wiper at 33 centimeters, which allows it to fit perfectly into the dimensions of the rear window. Some even install components at 40 centimeters, but in this case you will definitely have to increase the wiper stroke limit. To do this, remove the motor, shift the teeth by several units and put it in place.

When the relay is triggered, the electric motor does not start

The cause of failure of the electric motor may be either a blown fuse or the motor itself. Fuses must be tested for functionality. If they are in working order, you need to inspect the trapezoid located under the hood; perhaps it has become deformed or a foreign object has gotten into it. In severe frost, again, you should check whether the blades are frozen to the windshield.

If the trapezoid is normal and the wiper blades move freely, you should definitely check the electric motor. To exclude other malfunctions, it should be removed from the car and connected directly to the battery. If it starts working, then it’s time to look for the cause in the electrical circuit.

Why the wipers do not work on the VAZ 2114

On a VAZ-2114 car, the wipers are like on the front windshield . and in the back . The difference between them is the number of brushes: two front, one rear, located in the center of the rear window. The operating modes are also different. While the front brushes can operate in four modes, the rear brushes can only operate in two. They are operated under the steering switch located on the right side of the steering column.

The first operating mode of the front wipers is intermittent. If they do not work in this mode, the culprit for this malfunction will be the relay . installed in the mounting block . It is designated on the electrical diagram as “K3”. Another reason for this malfunction may be under the steering switch.

The second mode of operation of the front wipers on the VAZ 2114 is low speed of movement of the brushes. This operation of the wipers is only possible if there are three brushes in the electric motor. Two of them are in a diametrically opposite position, and the third is shifted from this axis by a certain distance to the side. This means that the culprit of this malfunction will be either freezing of the brushes located opposite each other, or their complete wear.

The third mode of operation of the front wipers is high speed movement of the brushes. In this case, the third brush comes into operation, offset from the geometric neutral. Therefore, you need to start looking for the reason for not working in this position with this brush.

Washer problems

For optimal and efficient operation of windshield wipers, they require a constant supply of water. To automate this process, engineers have developed a device called a washer.


Washer system diagram

Breakdowns and ways to fix them are different. Let's get to know them in more detail.

  1. The steering column switch does not work. Make sure of this by closing two contacts under the steering wheel - front contact 53ah-w, rear - 53ah-wh, and then measure the resistance. If it is low, the switch is replaced with a new one.
  2. There is no water flowing through the washer pump. It should also be replaced.
  3. Dirt has formed in the injectors. Use a sharp needle to clean them.
  4. The wire that connects the pump and the switch has broken. You understand that the only option is replacement.
  5. Relay K3 is faulty. Again, you have no choice but to change the relay.
  6. The hose ruptured and its integrity was compromised. What do you think should be done in such a situation? Absolutely right - change the hose.

Design of the VAZ-2114 windshield wiper

The windshield wiper on the VAZ-2114, as well as on other models, consists of the following components:

  • drive (electric motor with a long shaft);
  • gearbox;
  • lever system (trapezoid).

It is the last part that drives the wipers.

A worm is cut into the front of the electric motor rotor, which drives the main gear of the gearbox. When the windshield wiper turns on, voltage is supplied to the electric motor and the shaft begins to rotate, driving the gearbox. Thanks to it, the levers move, to which the ends of the wiper housings, located on the outside of the car body, are attached. There is a special hook at one end of the shaft. With its help, the moving contact of the windshield wiper stops in the extreme position is controlled.

Wiper control

The wipers are controlled from a switch mounted on the steering column, which allows the wiper to operate in several modes, necessary in different weather conditions. The VAZ-2114 car has three types of wiper movement:

  • intermittent mode;
  • constant low speed of movement;
  • constant high.

Often in VAZ cars the windshield wiper does not want to work in only one mode, so you need to know not only the design, but also the mechanism for controlling the glass cleaning system.

Intermittent mode begins to operate in the first and second positions of the switch. A relay located on the circuit board of the car and designated in the diagram as “Short circuit” is responsible for its operation. In the third position of the switch, the wipers operate in constant mode at a low speed. To switch the wiper to constant high-speed mode, you need to turn on the fourth position.

Replacing the motor

In practice, replacing wipers on a VAZ 2114 may be necessary in several cases. The most common is the failure of the gear motor.

There are different reasons:

  • The brushes constantly work, the shutdown relay does not work;
  • Turning on the regulator does not allow the wipers to start;
  • Sometimes the windshield wipers simply do not turn off when the corresponding buttons are pressed, etc.

To avoid breaking the teeth of the new gear motor due to the crank (the curved rod that connects the motor and the trapezoid arms), proceed in the following sequence:

  1. Turn off the safety block.
  2. Mark the crank position.
  3. Disconnect the crank fasteners.
  4. Unscrew the trapezoid fixing bolts.
  5. Remove the motor.

Causes of malfunction and their elimination

It often happens that the wipers do not respond to switching modes. If you turn on the wipers and when you switch the lever you do not hear the sounds of the electric motor or the clicks of the relay, the reason may be hidden in three places:

In such a situation, you first need to check the functionality of the fuse. It is located on the circuit board designated F5. You can check its working condition using a conventional tester. You also need to check the bimetallic fuse located in the purifier gearbox. If the wipers on a VAZ-2114 stop working in winter, there is most likely one reason - severe frost. The same fuse prevents the windshield wiper from turning on in case of overheating or freezing of the blades to the windshield.

Next, you need to check the relay (“short circuit” on the circuit board). You need to find it and temporarily replace it with a new breaker, and then check the operation of the wipers. If the windshield wiper does not function, we continue to look for the problem area. It is quite difficult to independently verify the operation of the switch. It consists of a complex structure, so it is easier to change it than to try to repair it. If the turn signal refuses to work together with the windshield wiper, the problem area is the switch located under the steering wheel.

Trapezoid repair

If the wipers on a VAZ 2114 work slowly, this indicates the need to repair the trapezoid. Although in reality it cannot be repaired, you just need to replace the failed element.


Replacing the trapezoid

Replacement will be required in case of mechanical damage. The procedure is quite simple, but here you will have to follow a certain sequence.

  1. Disconnect the wires under the hood that connect to the fuse box.
  2. Remove the protective cover that covers the heater fan.
  3. Remove the heater (stove) filter.
  4. Turn off the heater motor. It simply slides to the side; there is no need to dismantle it.
  5. The cover is removed from the wiper.
  6. Under the rubber protection cover there is a nut that holds the windshield wiper. You need to lift the cover a little and the nut will be easy to unscrew. Remove the wiper.
  7. Remove the rings and gaskets from the wiper shaft.
  8. Carry out a similar procedure with the second wiper.
  9. Under the hood, remove the bolts that connect the trapezoid to the body.
  10. Remove the fuse box and the stove motor, or unscrew the gear motor from the trapezoid, after which the motor and trapezoid are removed one by one. These are two ways that will allow you to get a failed trapezoid.

When the relay is triggered, the electric motor does not start

The cause of failure of the electric motor may be either a blown fuse or the motor itself. Fuses must be tested for functionality. If they are in working order, you need to inspect the trapezoid located under the hood; perhaps it has become deformed or a foreign object has gotten into it. In severe frost, again, you should check whether the blades are frozen to the windshield.

If the trapezoid is normal and the wiper blades move freely, you should definitely check the electric motor. To exclude other malfunctions, it should be removed from the car and connected directly to the battery. If it starts working, then it’s time to look for the cause in the electrical circuit.

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