How to remove the rear window washer nozzle of a VAZ 2112

Rear wiper motor from a VAZ car

Brief description of electrical work.
Based on a 1991 model year car. The connector to which the rear wiper is connected has four contacts. “Ground”, “Ignition on - 12 volts”, “Cleaner” and “Washer”. Sheet 1 contains a table of signals at this connector in various operating modes. Inside, the windshield wiper drive has a shaped slip ring and a set of contact brushes (sheet 3). The point of the whole design is that when the ignition is turned on and there are no external control signals, the drive goes into the braking zone (in the diagram - braking angle) and waits there. If, by applying voltage to the motor, you move it so that it leaves the “power-off angle,” then the drive will make almost a full revolution until it next enters the dead zone (power-off angle). In addition, there are engine control circuits in the electronic unit. The electronic unit generates a pulse that starts the engine and works out time intervals for the start-stop mode of the windshield wiper and for its continuous operation for several passes when the washer is turned on. Actually, the engine is controlled by a relay located in the block. Time intervals are generated by the 555th timer. The relay turns on the engine when it is necessary to move the windshield wiper mechanism out of the "power off angle" and then shorts one of the brushes of the contact system to ground. When the mechanism completes its cycle, power to the motor is turned off and the motor is then shorted to ground to provide dynamic braking. In the original and VAZ mechanisms there are minor differences in contacts that do not interfere with the normal operation of the entire electrical part. The brushes on the VAZ mechanism are located differently than on the original one, but this also does not matter much. In principle, if in doubt, you can take a power source and an ohmmeter and observe the operation of the entire brush system. The wiring for the mechanism from the VAZ 2112 is shown on sheet 2. Minor mechanical modifications to the unit are required. The mechanism mounts on the original and on the VAZ-2112 are located on different sides, and accordingly the threads are cut from different sides. The holes are through, the thread is normal M6, the distances between the holes are the same. Take a 6 mm tap and cut the thread through. If the tap is short, then it is simply cut into the same holes on the other side. The shafts of the mechanisms have the same diameters, but the length of the original one is slightly longer and the brush holder fasteners are different. You can order a turner you know to make an attachment in the image and likeness of the shank from the original mechanism (sheet 4), or you can, if you don’t mind the original, just cut off part of the tube through which the shaft passes from it. We need to remove the plastic attachment from the VAZ cleaner - it is simply put on the shaft and we do not need it. You also need to trim the plastic insert placed on the bushing of the original cleaner and shorten the thread for the outer nut. I didn’t take the exact measurements - I took a hacksaw and a file and adjusted everything in place. The mounting principle changes somewhat - the original windshield wiper is attached to the bracket with two bolts and is tightened by the shank with a nut. The converted VAZ retains the fastening with two bolts, and the shank passes through the manufactured bushing and a VAZ brush is put on it from the outside (I took one from 2104 - it seems to me that it is most suitable. The brush clamps the manufactured bushing and provides a third attachment point. A little worse, than in the original, but it seems tolerable. If you order an adapter from a turner, you can make a normal rigid mount. The washer tube with a nozzle from the original device is transferred to the VAZ brush holder, and for the brush you need to make a simple adapter. You can attach a brush from 2101, but then the sprayer is not very good successfully pours water - not on the glass, but directly on the brush. In general, these are small things and you can do them as you like. 1. Electronic unit and relay - are they already inside the motor from 2112 or do they need to be sculpted? Or are they in Grande itself? It’s not clear from the explanations.

— There is an electronic unit on the motor from 2112, but it is unique. I used a block that was on the original engine and everything written applies exactly to the situation when the original block is present. Vazovsky is obviously similar in some ways and it can also be attached, but I didn’t bother to deal with it, because... Having checked the angles of the contacts, I came to the conclusion that everything will work well with the original electronics unit.

2. About the other fasteners for the brush holder - do I understand correctly that the sophistication with the bushing and turner was needed to attach the brush (not the wiper itself, but the waving stick) to the grandee?

— “Waving stick” :o))) I added it from a VAZ-2104, but sophistication was needed, since on the motor from 2112 the entire frame of the output shaft was simply made differently. The original wiper has a long deadwood sticking out with a thread at the end and everything is profiled for fastening to the door, but in the motor from 2112 a plastic sleeve is simply put on and that’s it.

Otherwise, it’s not clear why you need an adapter if you can just take a VAZ motor with the original VAZ brush, which obviously should fit on it without any adapters.

— The brush fits just right, but some whiteness forms between the wiper drive housing and the rear door of the car :o))

3. There is some kind of diode indicated in the diagram. Is it already in the engine from 2112 or does it need to be installed there yourself?

— to tell the truth, I don’t remember anymore. He was using his original engine, but I won’t say right away that he was using a VAZ. Well, in general, I did everything “in the image and likeness.” Almost a year has passed. In such cases, diodes are usually installed to protect relay contacts from burnout, transistors from breakdown when starting or stopping the engine, or so that some current can be passed through it. Why he was there, I don’t remember now.

4. In general, do I understand correctly that nothing will prevent me from making a thread in the engine with a tap, hanging it on the back door along with the VAZ brush without any adapters and it will fit there normally?

VAZ-21124 engine control circuit

Connection diagram of the VAZ-21124 engine control system with distributed fuel injection to Euro-2 emission standards (controller M7.9.7): 1 - ignition coils; 2 — nozzles; 3 - controller; 4 - main relay; 5 - fuse connected to the main relay; 6 — cooling system electric fan relay; 7 - fuse connected to the cooling system electric fan relay; 8 - electric fuel pump relay; 9 - fuse connected to the electric fuel pump relay; 10 — mass flow and air temperature sensor; 11 — throttle position sensor; 12 — coolant temperature sensor; 13 — solenoid valve for purge of the adsorber; 14 — oxygen sensor; 15 — knock sensor; 16 — crankshaft position sensor; 17 — idle speed regulator; 18 — immobilizer control unit; 19 — immobilizer status indicator; 20 - phase sensor; 21 — vehicle speed sensor; 22 — electric fuel pump module with fuel level sensor; 23 — oil pressure warning lamp sensor; 24 — coolant temperature indicator sensor; A - block connected to the wiring harness of the ABS cabin group; B — diagnostic block; B - block connected to the air conditioner wiring harness; G - to the “+” terminal of the battery; D — to the side door wiring harness block; E - block connected to the instrument panel wiring harness; G1, G2 - grounding points; I - the order of conditional numbering of plugs in the block of the immobilizer control unit; II - the order of conditional numbering of contacts in the diagnostic block.

Connection diagram of the VAZ-21124 engine control system with distributed fuel injection under Euro-3 toxicity standards (controller M7.9.7): 1 - ignition coils; 2 — nozzles; 3 - controller; 4 - main relay; 5 - fuse connected to the main relay; 6 — cooling system electric fan relay; 7 - fuse connected to the cooling system electric fan relay; 8 - electric fuel pump relay; 9 - fuse connected to the electric fuel pump relay; 10 — mass flow and air temperature sensor; 11 — rough road sensor; 12 — throttle position sensor; 13 — coolant temperature sensor; 14 — idle speed regulator; 15 — control oxygen sensor; 16 — diagnostic oxygen sensor; 17 — solenoid valve for purge of the adsorber; 18 — knock sensor; 19 — crankshaft position sensor; 20 — immobilizer control unit; 21 — immobilizer status indicator; 22 - phase sensor; 23 — vehicle speed sensor; 24 — electric fuel pump module with fuel level sensor; 25 — oil pressure warning lamp sensor; 26 — coolant temperature indicator sensor; A - block connected to the wiring harness of the ABS cabin group; B — diagnostic block; B - block connected to the air conditioner wiring harness; G - to the “+” terminal of the battery; D — to the side door wiring harness block; E - block connected to the instrument panel wiring harness; G1, G2 - grounding points; I - the order of conditional numbering of plugs in the block of the immobilizer control unit; II - the order of conditional numbering of contacts in the diagnostic block.

Wipers for VAZ 2112

The VAZ 2112 is equipped with two windshield wipers and one rear wiper. It is necessary to replace wipers immediately after the first signs of malfunction occur. They are signaled by extraneous sounds (creaks, rustling). The assortment is represented by a fairly wide range of products.

The details of their designs differ, as well as the materials used. It is important to note: the length of the brushes on both sides (driver, passenger) is the same. Which is an important advantage. There is no need to look for sets of two brushes of different lengths. You can purchase two identical ones and install them. The type of fastening of all brushes is a hook. One of the most common.

Installation does not cause any problems. It is difficult to purchase original windshield wiper blades for the VAZ 2112. Not only because of the irrelevance of the model. AvtoVAZ has not been producing small components independently for the last 30 years. Including brushes. The official supplier is Bosch. Therefore, the analogues presented in the assortment of stores do not differ in their characteristics from those present in stores.

Methods for attaching brushes

Before 1999, most car manufacturers used a type of mounting for OEM windshield wiper blades called a "hook" or "hook". This is a universal device in the shape of the letter “U”, which allows you to snap the brush into place and not worry about the reliability of its installation. The following types of mounts are currently gaining popularity:

1. Side pin - appeared in 2005 on BWM, Volvo and other cars. Allows brushes to be fixed using a special 22 or 17 mm side pin.
2. Button or “Push Button” is an adapter for standard 16 mm wide wiper blades. It is enough to snap the device into place for fastening, and to remove it you need to press a special button.
3. Pin lock - fixation of brushes using a special built-in lock. Used in Audi cars.

“Push Button” mounting scheme

This is not a complete list of types of fastenings. Each manufacturer can use their own designs for fixing brushes.

Despite the relative simplicity of windshield wipers, it is difficult to imagine a modern car without them. Drivers can control the operation of the wipers directly from the cabin, remove dirt and improve visibility of the road situation. And electronic systems automatically monitor the cleanliness of the glass, increasing the comfort and safety of driving without human intervention.

Dimensions

The length of the rear brush and the front one are different. At the same time, it is possible to install longer brushes than expected. They will not touch the body or other parts of the car. Which is especially convenient. It is important to consider: if the brush on the driver and passenger sides are the same, then water will flow between them. Which will affect visibility and visibility through the windshield. You should avoid installing identical wipers.

Original articles

It is not possible to find original brushes for this car. Original articles:

Replacement options

Automotive stores stock suitable wipers from various brands. Size 508 mm, 20 inches is not difficult to find. It is quite widespread. The entire range presented can be divided into the following categories:

Frame

Classic wipers are equipped with a metal frame. Important advantage: low cost. They are durable and affordable to a wide range of motorists. The disadvantage is the aerodynamic shape of the frame. When moving at high speed, air encounters resistance along its path. Which leads to deterioration of the contact of the working surface with the glass.

Frameless

This variety has an ideal aerodynamic shape. Therefore, even at high speeds, problems do not arise. These products are distinguished by an attractive design. They are inexpensive and do a good job of cleaning. But they often break under mechanical stress. Not durable.

Hybrid

The best solution would be to buy hybrid brushes. They do not have the disadvantages of frameless, frame models. They have an aerodynamic shape and do a good job of cleaning at high speed. Made from a single piece of rubber. At the same time, there is a metal frame inside. Thanks to this, the strength of the structure is achieved.

Winter

Elasticity is achieved at low temperatures by adding rubber to the rubber composition - from which the brush is made. There are many different modifications of these wipers. Preference should be given to well-established brands. Winter wipers are distinguished by their elasticity - even at sub-zero temperatures they clean the glass well.

Buying new wipers is a responsible procedure. When choosing new brushes, take into account:

• operating mode, region of vehicle location;
• average speed;
• driving style.

If the car is used infrequently, driving at low speeds, frame wipers are best suited. For high-speed routes, frameless or hybrid models are needed. In conditions of negative temperatures, it is difficult to do without winter wipers. It is important to pay attention to the packaging when purchasing. Most often, well-known, well-established brands are counterfeited.

Replacement

The process of replacing wipers on a VAZ 2112 is standard and includes the following steps:

• We place the wiper perpendicular to the windshield - in this position it is fixed;
• With two fingers we squeeze the plastic fastener along the narrow sides - this will allow the hook of the leash to disengage;
• Using a gentle sway, we pull the wiper out of its seat.

If you don’t plan to use a used wiper in the future, then you don’t have to stand on ceremony with it. If use is planned, the procedure should be carried out carefully. Plastic is fragile, especially in sub-zero temperatures. Therefore, if possible, it is worth replacing in the warm season.

Some drivers carry several sets of brushes with them at once. This greatly simplifies the driving process. For example, frameless ones are installed on the highway. When driving around the city - frame ones. The latter are inexpensive. Nothing bad will happen if they are stolen. It is important to carefully familiarize yourself with the process of installing new brushes.

How do the drive, arm and other components of the windshield wiper work?

The windshield cleaning system includes many elements connected to each other and performing one important function - cleaning the windshield from dirt. If for some reason the system stops working, the driver's visibility of the road will be impaired and, accordingly, this may affect his safety. Find out what functions the windshield wiper arm performs and what elements the system consists of in this article.

Device design

Wiper circuit
First, let's try to understand how the wiper circuit on the VAZ 2110 works and what components form a solid unit called a windshield wiper.

↑ Wiring diagram for the windshield washer and wiper of the VAZ 2110

1 - electric motor for windshield wiper; 2 — windshield washer electric motor; 3 — windshield wiper and washer switch; 4 — mounting block; 5 — ignition switch; K2 - windshield wiper relay; K6 - additional relay; A - conventional numbering of plugs in the block of the wiper motor; B - to power supplies

Why the wipers don't work

At some point, the car owner may notice that his wipers are not working. This may manifest itself in their complete stop or creaking operation.

Trapezoid Compatibility

First of all, look for the reason in the electric motor. But remember that mechanical problems also happen.

The most popular mechanical breakdowns of wipers:

• When the cleaners turn on, the sound of the motor is heard, but the brushes do not move or twitch slightly. Most likely, the nut securing the crank to the gearbox axle has lost its grip or has become completely unscrewed.
• Non-synchronous operation of the windshield wipers indicates a problem with the drive. Again, check the locking nut. When tightening the nut, be sure to first place the brushes in the correct position.

As for problems with the electrical component, they manifest themselves as follows:

• The wiper moves very slowly, stops, then starts working again, does not stubbornly go to the lower position. Check the limit switch. By bending the contacts, it is adjusted in this way. If such a measure does not bear fruit, replace the entire VAZ 2110 wiper motor assembly, since the gearbox is built-in;
• You have turned on the intermittent mode, but the brushes work non-stop. Here the problem lies in the relay, which needs to be replaced. If when you turn on the device you do not hear a sound from the rotation of the motor armature, then the relay is 100% to blame. If not, then check for burns and oxidation on the contacts;
• When choosing any mode, you can only hear the clicking of the thermometallic fuse. At the same time, the anchor and brushes remain in place. Check to see if the brushes are frozen because of the frost and that’s why they don’t move. Either fuse F5 has blown, or the armature has burned out;
• The electric motor does not turn on, although the fuses are good. Check the quality of contacts. This often causes a stuck brush or a burnt armature.

What to do if the wipers stop working due to electromechanics

If the wipers on a VAZ 2110 do not work, the problem may lie in failed gearmotor elements.

The following elements of the electric motor can fail:

• Limit switch;
• Motor anchor (it could burn out);
• Contacts (oxidized);
• Springs on motor brushes;
• Gears in the gearbox (worn out);
• Collector (burnt or dirty).

Repairing wipers on a VAZ 2110, if the cause is correctly identified, will not be difficult.

To do this you need to do the following:

• Remove the dashboard;
• The relay is screwed to the left of the car body; if it is faulty, replace it;
• Check the fuse;
• We disassemble the steering column and study the switch. If the insulation is damaged or other problems are present, change the steering column switch;
• We take out the electric motor and, if the damage is minor, we carry out repairs. If it requires replacement, feel free to replace it along with the relay.

The wipers on the VAZ 2110 may not work due to mechanical faults.

Quite simple things can prevent the wipers from working properly. For example, such as loosening the nut that secures the electric motor and brush holder. Or weakening the springs of the leashes. The cause may also be the destruction of gears, which is associated with the fragility of the material. As a rule, they are made of plastic.

As a result, we can say that the reasons for the breakdown of wipers are quite simple.

Among the “frivolous” breakdowns, the following can be distinguished:

• The fuse in the mounting block died;
• The wires are worn out;
• The gears are worn out;
• The connecting terminals have loosened;
• Contacts have oxidized;
• The mechanism is dirty.

Such breakdowns are not difficult to repair, and they will not cause significant costs when replacing parts.

Approximate prices for parts:

• Relays - from 285 rubles;
• Geared motor - from 1650 to 2200 rubles;
• Windshield wiper trapezoid - from 1,700 rubles;
• Assembled windshield wiper - from 3050 rubles;
• Windshield wiper lever (left) - from 435 rubles;
• Windshield wiper lever (right) - from 330 rubles;
• Brushes from 165 rubles per piece.

All these reasons why the wipers on the VAZ 2110 do not work can be eliminated quickly enough, without extra effort and expense. Of course, the car will let you down if something serious breaks down. For example, combustion of an electric motor, oxidation of contacts that now need to be replaced

It is very important to take care of your car. You need to check the condition of elements such as wipers at least once every couple of days or before getting into the car.

It will be very sad if you notice that your wipers break down during a rainstorm on the highway. Remember: if the brushes freeze to the glass, the electric motor will burn out, then you will have to replace it. Therefore, in winter, be sure to move the blades away from the windshield if you leave your car.

In good weather, no one remembers the car wipers. If there is precipitation, you won’t get far without windshield wipers.

Let's look at the structure of the windshield wiper mechanism of the VAZ-2110 car and dwell on the main reasons for their failure. We will also consider the nuances of repairs and alternative solutions to increase the efficiency of wipers.

Windshield wiper repair

In practice, repairing wipers on a VAZ 2110 is not at all difficult if you have at least basic experience in working with a car and its electrical components.

Unscrew the fixing nut

First, let's figure out how to remove the wipers on a VAZ 2110. The design provides several fasteners, by unscrewing which you can easily remove the wipers themselves.

But with disassembling the windshield wiper assembly, everything is a little more complicated. It is analyzed as follows.

1. Remove the dashboard.
2. On the left side, find the relay that is attached to the body. If it is broken, there is no point in repairing it. Just install a new relay.
3. Next, check the condition of the fuse that controls the operation of the windshield wiper drive.
4. Disassemble the steering column to allow you to examine the state of the switch. If the insulation is damaged or there is other damage, replace the unit.
5. Unscrew the electric motor from the body and check it in action. If the damage is not serious, it can be repaired. It's better to immediately replace it along with the relay.
6. Check the drive. It is not uncommon for a pulley to break on it, which is why the device has to be replaced with a new one.
7. Make sure the trapezoid is in good condition. It may be necessary to replace the windshield wiper trapezium on a VAZ 2110 if, during operation of the car, the lubrication of the device has deteriorated and all kinds of debris and water have gotten in there. If the lubrication does not work properly, the plastic bushings of the hinges wear out, causing play and increasing resistance during operation of the device. The trapezoid itself serves to transmit force from the electric motor to the windshield wiper arms.

How to repair

1. Remove the dashboard.
2. Find the relay that is bolted to the body.
3. Now you need to check whether the fuse responsible for the wiper drive is working.
4. Then the steering column is disassembled, which makes it possible to see the condition of the switch. Replacement will be required if the insulation is damaged or there are any other flaws.
5. Now unscrew the motor from the body and check if it is in working condition. If the damage is minor, repair will help, otherwise replacement along with the relay is necessary.
6. You also need to inspect the drive, since it may be the cause of the malfunction, namely the breakdown of its pulley.

All VAZ-2110 cars have the same windshield wipers. If they are selected incorrectly (more or less), the mechanism will wear out faster and, accordingly, it needs to be replaced or repaired.

You can replace them as follows:

• the negative terminal of the battery is disconnected;
• the wipers are pulled towards themselves and the brushes are disconnected;
• the decorative panel also needs to be removed;
• the bolt is unscrewed and the old windshield wiper is removed;
• now you need to compare the size of the new wiper and its predecessor;
• the new wiper must be identical or at most two more (otherwise there is no point in replacing);
• install in reverse order.

Finally, you need to check whether the new windshield wipers function correctly. If they, for example, squeak, something was done incorrectly during the replacement process.

Note: The wipers should operate quickly at high speeds, slowly in intermittent mode.

Alternative solutions

Most car owners of the domestic “ten” are accustomed to replacing worn out and faulty windshield wipers with similar ones.

Often this happens because they do not see alternatives and are not familiar with them.

But this size can be increased to 530 millimeters . It is not recommended to install more, since this way the windshield wiper will not be able to work effectively, and the drive simply will not cope with the load. As a result, too long brushes cause squeaking and jerky work. Plus, don’t count on a long service life of the wiper mechanisms.

The original windshield wipers for the 10 are quite good. But there are more expensive, but also more highly efficient, high-quality devices.

Today it is fashionable to use frameless wipers, especially from Bosch. Their advantages lie in their compactness and a special, reliable leash mechanism.

But as practice shows, on the windshield of the VAZ 2110, as well as other VAZ models, they do not look very nice, because the fasteners on the leash turn out to be massive. Although if you modify them a little, you will get a very good result.

Injector maintenance

To ensure uninterrupted operation of the injectors, attention must be paid to them periodically. An extra inspection of the injectors won't hurt. If the injectors have not been turned on for a long time, they must be checked for functionality. Clean and adjust if necessary. In the winter season, it is imperative to use antifreeze washer fluid. Freezing of injectors leads to their wear and premature failure. If you follow the recommendations proposed in this article, then you will not need to replace the washer nozzle on the VAZ 2112 for a long time. And the windshield will be washed as the video shows.

Source

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.

Do-it-yourself modification and replacement of wipers

Which wipers are better is up to the car owner to decide. Those installed on the VAZ 2110, as well as on the UAZ, do their job well from the factory, but it can be modified with washers from other companies that are of higher quality. Many people are attracted to frameless brushes - this is a good option. They are compact in size and equipped with a special leash mechanism. True, they do not look very attractive on the VAZ 2110, since the fastener to the standard washer arm turns out to be massive. Therefore they need improvement.

Frameless car washers

To perform a replacement or modification, you must perform the following steps:

1. First you need to disconnect the negative terminal on the battery.
2. Then you need to tilt the mount towards you and remove the brush.
3. If there is a decorative trim, it must be removed.
4. By unscrewing the bolt, you can remove the old brush.
5. Before replacing parts, be sure to check the dimensions of the new washer with the old one. It is advisable that the new one does not exceed the size of the old one by more than 2 cm.
6. Installation of the new kit is carried out in the reverse order.

First stage: diagnostics and elimination of electrical faults

Every owner of the tenth model probably noticed clicks and noise coming from the gearmotor located on the left when activating the windshield wiper system. Therefore, at the initial stage of solving the question of why the wipers do not work on the VAZ 2110, you should pay attention specifically to the nature of the operation of this unit.

The electric motor does not show any signs of operability - it is necessary to inspect fuse F5 in the mounting block located on the left under the headlight beam hydraulic corrector. A serviceable fuse primarily serves as an indicator of problems in the electric drive feeding system.

A multimeter will help you identify the faulty area: you need to “ring” the circuit in resistance mode from the fuse to the gearmotor and steering column lever, and even the switch itself. The multimeter induces zero: the section is serviceable, an infinitely large value is a reason to inspect the terminals and wires.

The malfunction is resolved by the following steps:

• clean/crimp the terminals in the fuse block, contact connectors of the steering column switch and gearmotor;
• replace wires;
• replace the lever on the steering column that activates the windshield wipers.

Relay K2 type 524.3747, located in the mounting block, is responsible for the operation of the windshield wipers in cycles with pauses (I and II positions). The system does not operate in intermittent mode - a reason for a detailed inspection and replacement of the relay. Under such circumstances, the steering column switch should also be “sinned”.

Something to keep in mind! If the relay is defective, the windshield wipers operate completely unprecedentedly in the third extreme position of the right steering column switch.

However, a faulty relay does not always stop the operation of the unit in intermittent mode. Windshield wipers can effectively perform their function in positions I and II, however, the presence of a defect in the relay will be indicated by the absence of pauses between sweeps of the brushes, characteristic of these modes.

Along the way, finding out other reasons why the wipers on the VAZ 2110 do not work intermittently with pauses, you should inspect the limit switch located on the gear motor cover:

• the oxidized layer should be removed;
• burnt contacts must be cleaned;
• Contact petals should be bent if necessary.

Where does which wire go, or just a diagram

Connecting wipers and washer

“Plus” power is supplied from the ignition switch through fuse No. 2 at 10 Amp of the mounting block. The permanent “plus” goes along the black and yellow wires to contacts “4” of the connectors of the gear motor and the steering column switch. It should not disappear even when the switch is in the “off” position. The blue wire supplies “+” 12 V power to the motor when the switch is in the “continuous mode” position. On the blue-white wire, in the “off” position there should be a “minus”, and in the “continuous mode on” position the “minus” is turned off. This is done to slow down the motor when the power to the closer is turned off.

The red wire supplies the relay with “+” 12 V from the switch when the intermittent mode is turned on. At the moment of operation, contacts “2” and “4” close, and “1” and “3” open, the motor starts working and the brushes make one or two movements. Then “+” 12 V is turned off, and contacts “1” and “3” are closed to each other and to “minus”. The motor stops for a few seconds and then the cycle repeats.

The washer pump motor is connected to “+” 12 V constantly with a black and yellow wire through the same fuse No. 2. “Minus” is applied when you press the windshield wiper lever from bottom to top.

Video about how a windshield wiper works

Mechanical faults

mechanics Often the wipers on a VAZ 2110 car do not work due to a banal loosening of the nut that presses the brush holder to the trapezoid shaft.
You can restore the system's functionality instantly by adjusting the angle of the brush and tightening the lever with a nut. An unscrewed nut that facilitates the transmission of torque from the gearbox to the trapezoid can be reported by one of two events:

• the electric motor remains operational in all modes, but both brushes do not move;
• the brushes spontaneously stop working in an intermediate position.

However, stopping of the brush holders in an arbitrary position can occur due to poor pressing of the “limit switch” contacts to the gear motor gear or oxidation/burning of the same contacts. And the brushes are not able to move even after chipping the teeth of the gears, which do not have a long service life - after all, they are made of plastic.

Removing the nozzle

In order to carry out high-quality maintenance, restore the functionality of the nozzle or replace it, first of all, it is necessary to disconnect the wind pad or, as it is popularly called, “jabot”. Or rather, its upper part. To do this, you will need a 10-mm head, a flathead and a Phillips screwdriver.

How to remove the upper part of the windshield

• Using a 10mm socket, unscrew the two nuts located along the edges of the cladding.
• Next, unscrew the four self-tapping screws that secure the cladding. The screws are located under the plugs.
• Then you need to disconnect the sound insulation, which is attached to the wind window trim with six self-tapping screws.
• Carefully remove the top part of the windshield.

Having thus gained access to the washer nozzles, we proceed directly to dismantling them.

Attaching the washer nozzles

To dismantle the injectors you must:

• Disconnect the washer tube from the tee.
• Unscrew the screws securing the injectors, as shown in the photo above.
• Remove the injectors.

Now you can perform all further operations with the injectors. Assembly is carried out in reverse order.

Total

Windshield wiper failure can occur for quite trivial reasons:

• fuse F5 burned out;
• the terminals of the connecting blocks are oxidized or burnt;
• wires are faulty;
• relay K5 524.3747 broke;
• ordered the steering column switch to “live for a long time”;
• the nut that attracts the trapezoid crank to the gearbox has become loose;
• the nuts securing the levers to the trapezoid shafts were unscrewed;
• The brushes are frozen to the glass.

Often, wipers on models of the VAZ 2110 family do not work due to complex faults:

• oxidation/burning, insufficient pressing force of the contacts of the limit switch located on the gearbox cover;
• brushes hanging in the gearmotor;
• burnout/contamination of the collector;
• break in the armature winding;
• chipping of gear teeth in the gearbox.

VAZ 2109 wipers: examination and rehabilitation techniques

The “nine” has a classic windshield wiper circuit: the steering column switch via a relay (intermittent modes) or directly supplies power to the electric motor, which causes the gearbox – crank – trapezoid – brush holders to rotate. Long-term practice demonstrates that

Starter bulkhead on VAZ cars of the tenth model

Problems with starter failure can occur at the most unexpected moment. Since the engine cannot be started, the problem turns out to be quite serious. But you can try to solve this problem yourself. First you need to establish the cause of the malfunction. The main factors for

Causes of motor breakdowns and methods for eliminating them

Every driver faces such a problem when his car breaks down and won’t start. The reason for this is often a malfunction of the starter. It is a specific electric motor that uses a battery to receive power. Main faults and their

Determining the causes of a windshield wiper malfunction on a VAZ car

wipers If suddenly the wipers on your car stop working, this is not a reason to panic. This device is quite simple and, if desired, anyone can independently eliminate the cause of the malfunction by following the further instructions. And so, let's find out why the wipers on your VAZ-2105 do not work.

How to detect and fix problems in the windshield wiper system of a Lada Kalina car

The design of the windshield wiper system is a fairly simple diagram. If desired, any car owner is able to understand the cause of the malfunction and fix it independently.

The design and principle of operation of automobile windshield wipers

All modern cars are equipped with windshield wipers or wipers, which are designed to clear the windshield of dirt, dust or precipitation. With their help, the driver can significantly improve visibility without leaving the cabin. Automotive windshield wipers are an integral part of the vehicle design, and their malfunction prohibits the operation of the vehicle.

1. Windshield wiper system
2. Windshield wiper design elements
3. How the device works
4. How does a trapezoid work?
5. Wiper motor
6. Purifier management
7. Types of brushes
8. Methods for attaching brushes