Wiper relay for VAZ 2107 - where is it located, modernization, replacement

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.

VAZ 2107 fuses and relays, electrical diagrams

Often when operating a VAZ 2107 we encounter electrical problems. At one point, one of the electrical appliances, such as a stove or low beam headlights, refuses to work. Dimensions, cigarette lighter, turn signals and other components of the vehicle's electrical circuit may also stop working without warning.

To find the cause of the malfunction, you first need to understand whether voltage is supplied to a particular device and check the fuses and relays of the VAZ 2107. The most important thing in the circuit is the fuse. It protects the device from overloads and failure. If there is any short circuit or if the current in the circuit increases significantly, the fuse will blow. Therefore, first of all, let's open the hood of the car and check the fuses.

Tensioning the alternator belt on a VAZ classic with “two fingers”

This modification was trially implemented on the injection classic VAZ-2107, but will also fit any other classic, regardless of the model and type of engine. At one fine moment on a frosty winter morning, I noticed that the voltmeter on the dashboard refused to show normal battery charging and the car made a characteristic whistle when driving, this whistle cannot be confused with anything - the generator belt was whistling! The wretch's tension loosened. That same day I went to a service station, two oily car mechanics, using a crowbar, a crooked cardan wrench and such and such a mother, tightened the belt...

VAZ CLASSIC Maintenance

Fuse box VAZ-2107

The VAZ-2107 fuse box is located in the engine compartment, to the right of the engine (if you look in the direction of travel of the car). It contains the main fuses and relays. To check whether any of them have burned out, you need to open the hood and the plastic cover of the block, on which the names of the fuses and their nominal values ​​​​should be indicated.

R1 - relay for turning on the heated rear window . If the heating does not work, check this relay, as well as fuse F5, replace the burnt or faulty ones. If the relay and fuse are working, check the contacts for connecting the wires to the heating strips on the rear window (on the side closer to the side doors)

R2 - headlight high beam relay . Works in conjunction with fuses F12 and F13. If only one headlight does not shine on high beams, most likely the problem is in the lamp, which is time to be replaced or in fuse F12 or F13 (right/left headlight, respectively)

R3 - headlight low beam relay . Works in conjunction with fuses F16 and F17. If the low beam does not work in both headlights, it is most likely the problem with this relay. First of all, replace it with a working one. If it doesn’t help, both lamps could have burned out (this happens) or their fuses.

1 — connector for the relay for turning on the headlight cleaners and washers . If your car does not have these devices, then the presence of a relay is not necessary.

2 — connector for the horn relay . In the figure, a jumper is installed so that the sound signal works without this relay.

3 — connector for the cooling system fan motor relay . In the figure, a jumper is installed so that the fan operates without this relay. Be careful with this connector. Failure to contact the jumper in the absence of a relay can cause the fan to fail, and this can lead to overheating of the coolant and, accordingly, the engine. When the first signs of overheating appear (according to the temperature sensor and boiling of the liquid), turn off the engine as soon as possible.

4 — tweezers for replacing fuses 5 — spare fuses 6 — tweezers for replacing relays

Try to always have spare fuses of different ratings, so that if they blow out on the road, you don’t have to look for the nearest car shop.

VAZ 2101 or simply “Kopeyka”

This car was created on the basis of the pride of the Italian automotive industry Fiat-124. By the standards of that time, the Fiat-124 car was one of the best not only in Italy itself, but throughout Europe; it was awarded the title “Car of the Year” in 1965. But although it was he who was taken as the basis, the VAZ-2101 is still not an exact copy of it, but, so to speak, a deeply modernized version of the Fiat. Serial production of the car at VAZ began back in 1970, and the car was discontinued in 1988. Thus, the model lasted on the conveyor for 18 long years.

Compared to its ancestor, the main changes affected primarily the engine. It was not only adapted to gasoline produced in the Soviet Union USSR, but also a number of additions were made to it that made it a more modern and comfortable car. So, for example, in the classic “penny” engine the piston stroke was reduced and the cylinder diameter was increased.

VAZ CLASSIC Models

VAZ-2107 fuses

F1 (10 A) - lamps in the reversing lights, heater (heater electric motor), heated rear window . If your reverse light does not work, check this fuse, then the lamp itself, and it may also be the reverse light switch (on the rocker or gearbox). If the heater does not work, but this fuse is intact, the fault may be in the wiring or in the heater motor itself, as well as in the switch on the panel.

F2 (10 A) - electric motors for windshield wipers, headlight cleaners, windshield washer pumps and headlights . If the wipers or washer do not work, check this fuse and connector 1 for the relay. A relay or jumper must be installed in it. It could also be the wiring or the wiper motor itself.

If the windshield washer does not work, check the fluid level in the washer reservoir. In winter, poor-quality or untimely replaced fluid can freeze in the washer system pipes. The washer nozzles may also become clogged. Or the issue may be in the pump itself (located in the washer reservoir), if, for example, it has already served its purpose or was often turned on without windshield wiper fluid.

F3 (10 A) - reserve

F4 (10 A) - reserve

F5 (20 A) - rear window heating element and relay contacts for its activation . If the rear window heating does not work, also check relay R1. If the relay and fuse are working, check the tightness of the connection on the contacts of the heater and the integrity of its elements (no breaks).

F6 (10 A) - cigarette lighter, clock . If the cigarette lighter does not work and this fuse is intact, the problem may be in the contacts of the connector itself. Disassemble the panel with the connector to access the contacts and check their condition.

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

Fuse and relay block VAZ 2107

When diagnosing electrical faults, it is very convenient to use a multimeter. Using it, you can ring any connections and devices to check their functionality. If you know how to use it and have at least minimal knowledge of electrical engineering, I think it will not be difficult for you.

Drivers of the “Seven” are aware of the problem with the operation of the windshield wiper, which does not consist in frequent breakdowns, but in the fact that the cyclical movement of the wipers makes them nervous. But, more on that a little later. In general, the relay plays a very important role, and such a role appears only in rainy weather. After all, the operation of wipers is impossible not only without power, but also without a regulator. It is the relay that performs this function, which provides great convenience during bad weather. But this is not the only function of this device, however, this is described below.

WIPERS FOR HEADLIGHTS

Some owners of “Sevens” install windshield wipers on the headlights for ease of use of the headlights. With the help of these elements, there is no need to constantly clean the optics from dirt manually, which is especially important in rainy weather. To implement the mechanism, the following list will be required:

• headlight cleaner motors 2 pcs. (left and right);
• two transition strips;
• brush leads;
• brushes;
• washer reservoir with two pumps;
• five-pin relay;
• wiring with blocks;
• solenoid valve from the G8;
• tee and washer tube about 2 m.

As for the brushes themselves, they can be installed from both VAZ 2107 and VAZ 2105.

The main elements for equipping headlights with wipers are motors, leads, brushes, a reservoir with pumps, an electric valve, a relay and wiring

What is a windshield wiper relay and its purpose?

Let's start with the fact that the wipers on the VAZ-2107 are driven by a 12V DC electric motor. But the engine alone would not be able to provide such pendulum operation of the wipers. In addition, such an electric motor has high power, and therefore a considerable amount of direct current. To reduce the current in the windshield wiper switching circuit, a relay of type RS-514 is installed, which also performs the function of periodic operation of the wipers. The VAZ-2107 car has two modes of movement of the wipers - without interruption, and at intervals of four seconds.

Why does the windshield washer not work?

All washer malfunctions are divided into two groups: electrical and mechanical.

Mechanical:

• Lack of liquid. In winter, you cannot use ordinary water, as it may freeze. If the water still freezes, you need to warm up the car engine and leave it in a warm room.
• The fluid supply hose may fly off or become pinched.
• The nozzles can also stop the washer from working. Poor quality of water and washer fluid leads to the fact that the fittings become clogged with dirt, rust, and washer fluid does not flow. The injectors are cleaned or new ones are purchased.

Read, it may come in handy: Installing a VAZ-2107 radio: how to connect correctly

Electrical:

• Fuse F2(10A) has blown.
• The electric motor does not pump, no fluid flows, which means the terminals are oxidized. You need to clean the terminals and contacts and connect everything.
• Faulty switch. If the motor does not turn when voltage is present, then this is the reason.
• Check the pump motor by connecting it directly to the battery; if it starts spinning, then the fault is in the steering column switch.

Wiper relay functions

Windshield wipers operate thanks to an electric motor that supplies 12V voltage. But this is a very large power, implying a significant amount of constant current. Specifically, to reduce the constant current in the electrical circuit, a relay of the RS-514 format is installed, which regulates the frequency of movement of the wipers. The VAZ-2107 car is equipped with 2 variations of windshield wiper movement - one is possible without a break, the other has a pause of 4 seconds.

The windshield wiper relay on the windshield in a VAZ- 2107 , namely where it is located, is of interest to many car owners; otherwise, repairing windshield wipers in some cases becomes impossible. So, the mechanism is located under the dashboard on the left with the orientation towards the driver’s seat. The fasteners are made directly to the body of the VAZ-2107; 2 screws located under the upholstery act as reliable fasteners. When examining the relay, you can see that there is a wiring coming to it, at the end of which there is a plug for connecting the device.

The connector, which is responsible for connecting the plug, is located on the panel with devices near the headlight hydrocorrector control. To carry out repair work, you need to get it from below. If you doubt that you have selected the correct plug, unplug it and check that the windshield wipers are working.

If the lever is in position 1, but the wiper does not work, the mechanism is not turned on.

Replacing the VAZ classic wiper relay

Fixing wiper

on Classic.

New model fuse and relay block (mounting block) VAZ 2104, 2105, 2107 AVAR (402 and 404)

Review of new model mounting blocks for VAZ

2104, 2105,
2107
produced by AVAR 402.3722 ...

Common faults and solutions

The reasons why wipers do not work on cars, regardless of whether it is a UAZ or a S7, are basically the same. Below are the malfunctions and methods for eliminating them.

The problem is mainly mechanical - the trapezoid breaks. When repairing wipers, many replace standard products with frameless ones. They have an attractive appearance, adhere better to the glass, and do not have hinged joints, so they are not affected by dirt and icing.

Frameless brushes for cars

The design of a glass cleaner is a complex mechanism consisting of a large number of parts. Any of them can fail, which will lead to either a complete failure of the mechanism or poor cleaning of the glass.

If you understand the electrical circuit of the windshield wiper mechanism, you can do the maintenance yourself.

What does the windshield wiper relay consist of?

The wiper relay looks like a box, painted dark, to which a 15 cm long wire is connected. If you begin to disassemble it, inside you can see an electronic board where the electronic components are located. They are assembled and connected to each other, taking into account the circuit developed by the designers, this circuit just keeps the wiper relay in working condition.

For better understanding, let’s look at the windshield wiper relay device piece by piece:

1. Electric coil.
2. Microscopic controller of HP37 format.
3. Capacitor.
4. Resistor.

There are also several resistors, but they are not as important as the main one, located near the controller in the right corner of the device at the bottom. The board includes 4 connected wires that transmit signals from the VAZ-2107 wiper regulator.

How does the wiper relay work?

The wipers installed on the windshield of the VAZ-2107 work thanks to the coordinated operation of an electric motor, relay, fuse, switch and 12V power supply. After current is supplied to the electric coil when the windshield wipers are on, the moving armature is automatically connected, then the winding and, finally, the closing contacts located below and above.

What happens next:

1. The anchor is pulled to the middle, which allows you to separate the contacts at the top and combine the contacts at the bottom.
2. First, the coil has a bracket equipped with a bimetallic panel wrapped with a narrow wire, which transmits the current.
3. The current helps heat the panel, after which it opens the contacts.
4. After some time, the panel cools down completely and takes its previous position.
5. When the contacts open, the EMF is adjusted in the coil.
6. To suppress the electromotive force, a resistor rated at 62 kOhm is built into the mechanism.

The functioning diagram of the wiper relay in the VAZ-2107 looks like this:

1. After power is applied to the relay, where the contacts close when the coil is activated, the electronic motor receives power and begins to work.
2. After a maximum of 3 seconds, the panel made of bimetal heats up and turns off the power supply from the VAZ-2107 engine.
3. When the wiper blades return to their normal position, the panel cools down and starts working again.
4. The main resistor, which divides the homing EMF, forms the delay required for a certain periodicity of the wipers.

Repair of electric wiper motor

As mentioned above, difficult operation of the purifier may be caused by a malfunction of the engine. This is usually due to the fact that the lubricant in the bushings accumulates friction products over time and becomes very thick. The engine rotor begins to spin with difficulty, which leads to burnout of the winding or burnout of the commutator lamellas.

Secondly, when the wipers do not work completely when there is voltage, this is wear on the electric motor brushes. In some cases, with a slight blow to the engine, it began to work.

Below watch a video on replacing the wiper motor:

In cases where the windshield washer does not work, the motor is usually faulty. To check it, measure the voltage on the “+” yellow-black wire, if not, check fuse F2. If there is voltage, then use a piece of wire to connect the “-” black and white wire to the car body. The engine must spin, otherwise it is faulty.

There is nothing difficult in eliminating the described breakdowns. The necessary operations can be performed by any car enthusiast who knows a little about the design.

How to replace the wiper relay

In most cases, to eliminate breakdowns associated with wipers, car enthusiasts have to replace the relay. How to change the relay so that the windshield wiper located on the windshield of the VAZ-2107 works again?

1. Disconnect power.
2. Unscrew 2 screws.
3. If the plug is difficult to remove from the socket, you can pry it up with a screwdriver.

All that remains is to install the newest part and connect it.

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