How to turn on the Windshield Washer on a VAZ 2107

Malfunctions of the VAZ 2107 windshield washer - causes and repairs

One of the important parts of each car is the glass cleaning mechanism, which is presented in the form of wipers and washer. Sometimes a situation arises when the VAZ 2107 windshield washer, which is designed to clean the glass from dirt, does not work. With its help, water or a special liquid is sprayed, through which dirt is removed along with the wipers. We will consider in detail how to diagnose a mechanism malfunction, as well as eliminate the breakdown.

Where is the wiper relay located in a VAZ-2107 car?

VAZ-2107 owners will have to re-equip and modernize the car in their own way, if, of course, there is a desire to improve the hardware to the possible ideal.
This also applies to wipers, which show a slow cyclic movement. A windshield wiper is designed to thoroughly clean the surface of the windshield, so if it doesn't work effectively, sticks and drags, the road ahead becomes difficult to see in rain or snowstorms.

The functions of the wipers are based on the supply of appropriate power and the uninterrupted operation of the regulator. The last part is indispensable in the design of wipers, so it is advisable for every VAZ-2107 driver to know where the relay is located so that problems with it can be fixed at any convenient time.

System diagnostics

To understand the reasons for the inoperability of the windshield washer on the VAZ 2107, you should first of all consider the design of the system. It consists of the following elements:

1. Washer fluid reservoir.
2. A pump with an electric motor, which operates from a 12V network.
3. Nozzles or sprayers of a water jet that hits the windshield.
4. PVC pipes connecting the above elements.

A special liquid is poured into the washer reservoir, one type in summer and another in winter. Winter liquid is called “anti-freeze”, with its help you can effectively wash windows at sub-zero air temperatures, and not worry about the fact that it may freeze in the system.

When the washer is turned on, liquid is sprayed onto the windshield with the simultaneous automatic activation of the wipers. If, when you turn on the device, there are no signs of its performance, then you can determine the cause of the breakdown yourself. The electrical diagram for connecting the washer on a VAZ 2107 is presented below, based on which you can sort out the malfunctions.

Why does the windshield washer not work?

To determine why the windshield washer on the seven stopped working, it is necessary to carry out a thorough diagnosis. To help you carry out self-diagnosis, use the diagram shown in the photo above. Once a faulty element is detected, it will need to be repaired or replaced, depending on the nature of the failure. Malfunctions of the element in question can be divided into minor (you can fix it yourself) and serious, requiring replacement of the faulty part. Let's take a closer look at the main components of the system and their malfunctions.

The motor has failed

The first step is to check the proper operation of the washer motor. This is quite simple to do, just open the hood and press the steering column switch. The absence of signs of operation of the washer pump indicates that this element or its power circuit is faulty.

It’s not at all difficult to figure out the problem, but you will need a multimeter or a light bulb to do this. We connect the device to the contacts on the motor, and by turning on the steering column switch, we take measurements. The presence of 12V power (or if the light comes on) indicates that the circuit is working, and the reason lies in the inoperability of the motor itself. This part is not repairable, so you will need to buy a new element and replace it.

The nozzles should be checked if the windshield washer motor is working properly and there is liquid in the reservoir, but it is not supplied to the windshield. The nozzles spray liquid and have a simple design. In this case, the lack of liquid supply to the glass can occur due to a malfunction of the nozzles, which is quite easy to identify:

1. Check the connection of the tube from the motor to the injector. This tube may have come off, and therefore the liquid does not flow to the nozzle.
2. Check the tube for kinks and kinks. If a bend is appropriate, the motor will not be able to straighten it, since it has rather low power. If the reason is a bend in the tube, then you cannot turn on the motor for a long time, as it may burn out under load.
3. Clogged injectors. It is quite easy to determine such a defect, since if the injector holes become clogged, not all of them are clogged at the same time, so one of the two parts will function in case of such a malfunction.

If the nozzle hole is clogged, you can clean it with a thin sewing needle, thereby restoring the functionality of the system.

Fuse

If the multimeter shows zero voltage when you turn on the steering column switch, then the fault must be looked for in the power circuit. The first thing you need to do is check the fuse. It is responsible for the flow of permissible current in the circuit, the value of which should not exceed 8A. When the load increases or when the circuit short circuits, the fuse link burns out.

You will need to check the serviceability of fuse F2, which is responsible not only for the serviceability of the washer circuit, but also for the windshield wiper and headlight circuits. If the fuse has blown, it should be replaced, but before doing this, check the continuity of the circuit, since the reason for its blown may be a short circuit.

Understeering's shifter

One of the key elements of the system is the steering column switch, which supplies power to the washer pump drive. A switch is a contact that closes when you move it. It is possible to talk about a malfunction of this part only when all elements of the system have been checked and are in good working order.

Checking this part is quite simple; for this you will need a multimeter in test mode. You need to disconnect the terminal from the switch, and then connect the probes of the device. In the closed position of the switch, the device should emit a characteristic signal. If there is no signal, then the part must be replaced with a new one.

Identifying a mechanism malfunction is quite simple if you approach the problem correctly. To do this, follow the instructions described above, which will ultimately allow you to independently find and eliminate the cause of the washer inoperability on the VAZ 2107.

Causes of washer malfunction

If the windshield washer does not work, it will not be difficult for an experienced driver to identify the cause of such a malfunction, and even a beginner, after familiarizing himself with the main failures in the cleaning system, will be able to eliminate them on his own.

Mechanical problems

The most important reason, as mentioned above, may be the lack of washer fluid; in this case, you just need to top it up. If it is present, but does not splash in the winter, then perhaps it is simply frozen. In this case, the problem can be solved in one of two ways:

• warming up the engine;
• bringing the car into a warm garage.

After the liquid has thawed, the system will begin to operate as usual, but it is better to drain the water from the tank after this and replace it with an “anti-freeze” one.

Other significant mechanical reasons why the windshield washer does not spray include the following factors.

1. Clogged injectors . Their exit can be blocked by various debris: rust, dirt or small particles. To check the correctness of the guess, you need to stop the supply of working fluid to the nozzles; if this is the case, then the supply of “anti-freeze” will be normal. The solution to this problem lies in replacing the nozzles.
2. Disconnecting the hose . It may simply fly off while driving on bumpy roads, and then the fluid supply will continue, but the headlight and windshield washer nozzle will remain dry. Sometimes this happens in cars in which the connecting fittings are located on the hood, then when it is closed, the hoses are squeezed. In any case, the deformed or torn tube must be replaced and returned to its place.

Electrical faults

After checking the fluid level, the cleanliness of the injectors and the hose leading to them, it may turn out that all this has nothing to do with it, then the issue is for the following reasons:

1. Fuse blown . You will need to find the safety block and check the insert; it can be found using the attached diagram, which is usually printed on the cover or in the car’s operating instructions. After checking, if this is indeed the reason, then you need to replace the damaged part
2. Motor failure . To establish the accuracy of your guess, you should connect a multimeter to the motor terminals and check the voltage when you turn on the washer. If the voltage indicator is normal, but the motor remains inoperative, then the problem lies with it. You can determine which motor has failed by elimination, by moving the pump terminals from the windshield to its rear counterpart.
3. Washer switch malfunction . It is usually located on the steering wheel. If, after checking the voltage, it is missing, and replacing the motor with a new unit did not help, then it turns out that the windshield washer switch or relay is not working. Only an experienced auto electrician can accurately diagnose a breakdown.
4. Oxidation of pump terminals . During operation, they can not only oxidize, but also completely fall off, which is why the motor stops pumping liquid. To return everything to working condition, you need to clean the oxidized terminals or replace them with new ones.

The windshield washer of the VAZ 2107 does not work

Cars have special equipment for travel during bad weather associated with precipitation. The windshield of the VAZ 2107 is cleaned of water using movable brushes, and in case of contamination, the washer is activated. This device sprays a special liquid, it works simultaneously with the windshield wipers and removes dirt.

The equipment thus provides the necessary visibility for the driver and passengers. This device includes the following elements:

1. Liquid reservoir.
2. A pump that runs from the on-board network.
3. Nozzles that blow a water jet onto the windshield of a car.
4. Tubes connecting the tank to the actuators.

At the end of the summer season, the water in the system is replaced with non-freezing liquid, which will allow the system to be used in winter.

Where is the wiper relay located on the VAZ 2107?

VAZ 2107 is one of the most common cars in Ukraine. It is famous for its ease of repair and reliability. One of its few problems is the wiper relay that often fails.

VAZ 2107 is one of the most common cars in Ukraine. It is famous for its ease of repair and reliability. All this car needs is the care of the owner, good oil in the engine and gearbox and it will serve faithfully. One of its few problems is the wiper relay that often fails. This leads to the fact that the windshield wipers do not work at all, or their cycling gradually slows down. To restore the functionality of the device, the relay must be replaced, but this is not so easy. This article describes the location of the wiper relay on a VAZ 2107 and the process of replacing it with a new one.

How do wipers work and why are they needed?

The main task of windshield wipers is to create a good level of visibility in bad weather and to clear water and dirt from the car's windshield. Special auto chemicals and the use of the right washer can help them with this. Windshield wipers operate thanks to a special gear motor, powered by the vehicle's on-board circuit. And the relay marked RS-514 is responsible for the frequency of operation. The VAZ 2107 has two wiper operating modes - constant and cyclic, with a pause of four seconds. The efficiency of wipers is directly related to the quality of the battery; you can buy a good battery from us.

The windshield wiper relay, as one of the most important elements of the system, is located under the dashboard, on the left. It is fastened with two screws hidden under the upholstery. The connection is made using a special plug located near the headlight hydraulic adjustment handle. To check the device, the plug must be disconnected and pulled out.

Basic device

Knowing where the windshield wiper relay is located on the VAZ 2107 in the injection and carburetor versions is not enough. To carry out repairs, you should study the principle of operation. This device looks like a black box, inside of which there is a microcircuit and electronic components responsible for the proper operation of the wipers. The microcircuit consists of the following elements:

• electromagnetic coil;
• resistor and capacitor;
• microcontroller HP37.

Main causes of failures of additional equipment

If the washer on the car does not work, it is necessary to diagnose it using simple techniques. This system may fail for a number of reasons, which are listed below:

1. breakdown of the injection pump;
2. fuse blown;
3. kinking or squeezing of the supply hose;
4. breakdown of the steering column switch;
5. freezing of water in pipelines or other devices;
6. loss of contact in the electrical network.

It is possible to determine the cause of the malfunction and the amount of costs to restore the system's functionality based on the results of a careful inspection. If you need to replace individual parts or elements, you can do it yourself. The device that blows the windshield to clean it from fresh or dried dirt does not work.

Most likely, you will need to replace failed equipment.

System diagnostics

A working washer blows a jet of water onto the windshield glass, while at the same time the blade moves. You can determine which element needs replacement as follows:

1. We start the engine and open the hood.
2. We ask an assistant to pull the steering column switch lever towards you.
3. If the pump is running, it will be clearly audible.
4. There is no water jet blowing - this means that the nozzles are clogged.

How and what to fill in the washer reservoir?

Above we looked at how to remove the washer reservoir, check the system sensor and change the container (if it is damaged). But there are situations when the container body is intact, and the only thing that needs to be done is to add liquid.

In such a situation, proceed as follows:

• Pull the hood handle located in the cabin.
• Open and secure the hood.
• Unscrew the cap that is installed on the tank. In this case, unscrew only the cover that does not have wires.
• Add liquid (water or anti-freeze). If the container is empty, it holds about five liters.

Troubleshooting equipment

A failed washer that does not blow the windshield with a special liquid is restored. Most often, the injection pump needs to be replaced, which occurs in the following sequence:

1. The contact group is removed from the device.
2. Using a short screwdriver, remove the compressor from the hole.
3. In its place we insert a new unit into the tank.
4. We put connectors on the contact group, after which you can perform the test.

The engine operates with a characteristic sound when functioning correctly. The glass is blown with a water jet from the nozzles. If the tubes are replaced, you will have to wait a little time for them to fill with liquid. Using this system as intended will allow you to drive in any weather.

Operating principle

On a VAZ 2107 car, the wipers are driven by a 12 V electric motor. A relay is installed in the windshield wiper activation circuit. It is responsible for the intermittent operation of the wipers, which work without interruption or at intervals of four seconds.

The windshield wiper is connected in parallel through the contacts of the closer. They are located in the gearbox housing and are “responsible” for returning the brushes to their original position and abruptly stopping the motor. The driver controls the operating mode of the windshield wiper using the switch. The whole mechanism works thanks to a motor. It is prohibited to operate a car with faulty wipers, so car owners must ensure that they are in good working order. And in bad weather, driving with non-working wipers is very dangerous!

VAZ 2107 fuses

Cars considered: VAZ 2107, VAZ 21047 carburetor, injector

Location of the VAZ 2107 fuse box under the hood

Fuse and relay mounting block number 5

With the lid open it looks like this

Location of fuses and relays VAZ 2107

Earlier vehicles had an old fuse box.

Old style VAZ 2107 fuses

Fuse number (rated current)*

Purpose of VAZ 2107 fuses

Rear lights (reversing light). Reverse safety device. Heater electric motor. Heater fuse. Warning lamp and heated rear window relay (winding). Electric motor for rear window cleaner and washer (VAZ-21047)

Electric motors for wipers, windshield washers and headlights. Relay for wipers, windshield washers and headlights (contacts). Wiper fuse VAZ 2107

Rear window defroster heating element and its relay (contacts)

Cigarette lighter fuse for VAZ 2107. Socket for portable lamp

Sound signal. Radiator cooling fan electric motor. Fan fuse for VAZ 2107.

Direction indicators in hazard warning mode. Switch and relay interrupter for direction indicators and hazard warning lights (in hazard warning mode)

Fog lights. Generator voltage regulator G-222 (for car parts)

Instrument cluster. Instrument panel fuse. Indicator lamp and battery charge relay. Direction indicators and corresponding warning lamps. Indicator lamps for fuel reserve, oil pressure, parking brake and brake fluid level. Voltmeter. Instruments of the carburetor electro-pneumatic valve control system. Parking brake warning light relay

Brake light bulbs. Lamps for interior body lighting. Brake light fuse.

High beam (right headlight). Headlight wiper relay activation coil

High beam (left headlight) and high beam indicator lamp

Side light (left headlight and right rear light). Indicator lamp for turning on the side light. License plate lights. Engine compartment lamp

Side light (right headlight and left rear light). Instrument lighting lamp. Cigarette lighter lamp. Glove compartment lamp

Low beam (right headlight). Headlight cleaner relay switching coil

Low beam (left headlight)

* In the denominator for pin type fuses

Relay VAZ 2107

1. Location of relays and pin-type fuses in the mounting block:
2. Relay for turning on the heated rear window.
3. Relay for turning on headlight cleaners and washers.
4. Relay for turning on sound signals (jumper installed).
5. Cooling system fan motor activation relay (not used since 2000).
6. Headlight high beam relay.
7. Relay for low beam headlights.

VAZ 2107 injector fuses

The VAZ 2107 injector fuse and relay block is located on the front panel under the glove box.

This is what the block looks like

F1 - main relay circuit fuse (7.5A); F2 - ECU fuse (7.5A); F3 - fuel pump fuse VAZ 2107 (15A); R1 - main relay; R2 - fuel pump relay; RЗ - electric fan relay.

Note: On VAZ 2107 cars with ECU M1.5.4N and January-5.1.3, fuses F1 and F2 with a nominal value of 15A are installed.

Replacing fuses VAZ 2107

Replacing fuses in the mounting block. Open the cover of the mounting block. The serial numbers of the pin fuses are indicated on the underside of the cover and on the panel of the unit. There, on the cover, are the symbols of the protected circuits. In the old-style mounting block, which is equipped with some cars, the fuses are located in numerical order from left to right. The status of the pin-type fuse is visible through the window at the top.

To replace the fuses and relays of the VAZ 2107, the mounting block is equipped with special plastic pullers (tweezers); if it is not there, then you will need pliers to replace the fuses.

Replacing the additional headlight cleaner fuse

Headlight wiper fuses protect the windings of electric motors. They are located on the wires next to the gearmotors.

Fog lamp fuse.

Located in the salon. Using a screwdriver, remove the two middle switches from the radio panel.

use a screwdriver to press out the two fasteners

We take out the fuse housing, unscrew the cover and change the fuse

Ignition relay, turn signal and hazard warning relay VAZ 2107

Located in the cabin behind the instrument panel

To replace the relay, you need to remove the instrument panel and use a 10mm socket to unscrew the nut holding the relay

Starter activation relay VAZ 2107

Relay 113.3747 or 90.3747-10 is located in the engine compartment on the right mudguard

Windshield wiper relay.

Where is. The PC-514 windshield relay is located under the instrument panel on the driver's side and is secured to the body with two screws.

To get there, use a screwdriver to remove the left side trim

Using a Phillips screwdriver, unscrew the two self-tapping screws securing the relay.

The relay connector is located in the instrument panel next to the headlight leveling control. You can get to it from below the dashboard.

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 “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

Adjustable pause of the wiper relay for VAZ classic

I'm happy with the standard relay on my seven, except for one thing - sometimes, when the rain is not pouring but drizzling, I sorely lack one useful function in it - an adjustable pause between sweeps of the wipers in intermittent operation. By default, the pause is made for 4 seconds, essentially neither here nor there, you still have to manually jerk the wipers manually with a lever. Otherwise, it's always dry tinder. With a nasty creak