VAZ 2109 wipers do not work - reasons and solutions

VAZ-2109 wipers are designed to clean the windshield from precipitation that interferes with the driver while moving on the road. In working condition, together with the average person, wipers do an excellent job of removing snow, rain and dirt. But if the wipers on the VAZ-2109 do not work, it is better not to go out on the road in bad weather, since not only your life, but also the safety of others depends on their serviceability. It's better to stop and try to fix them. The design of the windshield wiper is quite simple, but in order to find the cause of the malfunction and repair it, you need to know it.

A car windshield wiper is a device consisting of an electric motor with an extended shaft (drive), a gearbox, and a lever system (trapezoid).

Windshield wiper device

The main purpose of windshield wipers. Remove dirt, rain and snow from the windshield and rear window using wipers and wipers in bad weather. If your VAZ's wipers don't work, it reduces safety, so you should put it into service as soon as possible.

Its design includes:

• Electrical engine;
• Lever system (trapezoid);
• Transmission of infection;
• Washer motor;
• Tank;
• Washer pump;
• Washer solenoid valve;
• Brushes and springs.

In addition, the design of the wipers includes various small details.

Glass cleaning scheme

The numbers on the graph indicate the following components: 1. Washer motor; 2. Electric motor wipers; 3. Mounting block; 4. Ignition switch; 5. Washer switch unloading relay; K3. Windshield wiper relay.

The glass cleaner can operate in three modes. Mode "I" is intermittent. Mode "II" is permanent. In this mode, the brushes move at low speed. Also a permanent mode is mode III. Different from the previous high speed brush. The mode is activated by a switch (video author. High-frequency auto electrician).

New model power supply

What does the relay do?

General disadvantages

The main signs of a malfunction of the VAZ 2109 wipers:

• The wipers stop completely, there is no reaction to pressing the levers;
• Brushes do not work periodically;
• The wipers are slow;
• The movement of the brushes does not correspond to the mode turned on in the cabin.

The most common malfunctions of VAZ 2109 wipers:

• Contacts are oxidized;
• Fuses have blown;
• Open circuit, damaged wiring;
• The switch does not work;
• A cleaner working in one mode does not switch to another;
• The washer motor does not work;
• The rear wiper of the VAZ 2109 does not work;
• Breakdown of the electric motor for cleaning glass.

Rear window wiper

The principle of operation of wipers

At the front end of the drive there is a cut worm that engages and drives the main gear on the gearbox. When the windshield wiper is turned on, voltage is supplied to the electric motor and the shaft begins to rotate, driving the gearbox. He begins to move the levers, which are located outside the car and connected to the windshield wiper housing. At one end of the gearbox shaft there is a special cam that controls the contact for stopping the wipers in the extreme position.

The operation of the wipers is controlled using a special switch located under the steering wheel of the car. It allows the wipers not only to move, but also to work in several modes. Thanks to this, you can adjust the operation of the windshield wiper based on weather conditions. “Nine” is equipped with three wiper operating modes:

• intermittent;
• constant movement at low speed;
• constant movement at high speed.

Often only one mode does not want to work on the VAZ-2109, so it is advisable to know the design, as well as the control mechanism of the wipers.

The wipers operate in intermittent mode in the first two positions of the switch lever. The third position is necessary for the wiper to operate in constant mode at a low speed.

Troubleshooting Methods

If the wipers do not work on the VAZ 2109, then you can detect and repair the damage yourself.

The repair is carried out in stages:

• The assembly is first disassembled;
• Then faults are detected;
• Then repair or replace the faulty parts;
• At the final stage of assembly.

Disassembling the windshield wiper

Disassembly consists of the following sequence of actions:

1. First of all, you need to turn off the power to the car by removing the negative terminal from the battery.
2. Next, the brush arms are installed in a vertical position, then the fastening nuts are unscrewed. Now you can remove them.
3. Using pliers, carefully pull the levers out of the slot without damaging the threads.
4. The plastic protective caps are removed from the socket.
5. Then you need to unscrew the bracket mounting nuts and you can remove them along with the washers underneath them.
6. Next, in the engine compartment, you need to disconnect the electrical wiring that is used to power the windshield wiper motor.
7. The next step is to move the heater fan so that it does not interfere with the removal of the mechanism. To do this, unscrew the screws.
8. We remove the cover from the mounting block and dismantle all the relays located in it, as they will interfere with further work.
9. Unscrew the lower bolt securing the wiper arm.
10. Then slide the plastic wire holder through the slot on the back panel and remove it so you don't lose it.
11. Through the holes in the case we show the rollers of the device. Then, by slightly lifting and sliding the windshield wiper and motor up and to the side, remove the assembly.

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Further. Complete disassembly of the mechanism. Visual inspection of all parts, including the wipers of the VAZ 2109. A broken brush can be replaced, but it is better to replace both. If mechanical damage is detected or parts are severely worn, they must be replaced.

Once all faults have been identified and corrected, we reassemble the assembly in reverse order and install it in its usual location. After the repair, you need to connect the negative terminal on the battery and check the operation of the windshield wiper.

Symptoms of a problem

To understand the breakdown of the windshield wiper, let's look at what signs it may have.

Symptoms of a malfunction may be the following:

• when turned on, the device does not react at all (the relay does not click, the electric motor does not work);
• the relay is triggered, but the electric motor does not turn on;
• both the relay and motor work, but the brushes do not move or move in the wrong direction;
• The intermittent mode of the VAZ-2109 wipers does not work;
• the electric motor does not stop in intermittent mode;
• The wipers are slow.

Now let’s look at each of the signs separately in the context of probable malfunctions and ways to eliminate them.

Checking and removing the windshield wiper motor VAZ-2109

An element such as the motor responsible for operating the windshield wipers on a VAZ-2109 car does not fail very often, but if this does happen, it must be replaced with a new one.

This is not very difficult to do, but the procedure itself takes a lot of time, especially for those motorists who do not have the proper experience.

First of all, it is necessary to de-energize the system. To do this, simply disconnect the negative terminal on the battery.

• Place the windshield wiper arms in a vertical position;
• Unscrew the nuts and remove them from the rollers;
• Remove the protective caps;
• Tighten the nuts (on one side), mounting brackets on top;
• Remove the rubber sealing washers;
• In the engine compartment, the wiring harness has been removed from the connector;
• Remove the bolts holding the bottom of the bracket;
• The mechanism rollers are removed from the holes;
• Unscrew the nut that secures the windshield wiper crank and remove it;
• Remove the bolts holding the wiper blade and motor in place;
• Disconnect the wires from the bimetallic fuse and remove the motor from the bracket.

All that remains is to remove the retaining ring and shims from the gearbox shaft and install the new motor. Reassemble in reverse order.

For more comfortable operation, we recommend moving the oven fan to the right. Without this, the wiper cannot be removed. You will also need to remove the fuse cover and any relays that are there.

The wiper itself must also be moved slightly to the left before removal.

Hardware problems: if the electric motor is running...

Incidents when the wipers on a VAZ 2109 do not work solely due to a disruption in the transmission chain of the torque already generated by the electromechanics are eliminated quickly and most often do not require third-party investment. This means that the gear motor is working properly, as evidenced by the clearly audible noise and clicking of the bimetallic fuse in the passenger compartment to the left of the driver - a signal to inspect the gearbox, trapezoid and brush holders.

The procedure for operating the gearmotor and stationary wipers is as follows:

• make sure that the connection between the brush holders and the output shafts of the trapezoid is strong; if necessary, correctly align the crank and tighten the nut;
• check whether the lever associated with the trapezoid is pressed to the driven gear of the gearbox;
• disassemble the gearbox, replace gears with broken teeth.

Gearbox disassembly

If the wiper does not work due to contamination of the gearbox, it is easy to clean. But under no circumstances unscrew the adjusting screw installed in it. Otherwise, you will most likely not be able to properly restore the anchor gap later.

The procedure looks like this:

• Remove the protective panel from the gearbox;
• Remove transmission;
• Remove the cage nuts after first unscrewing the two bolts;
• The gear housing is disconnected together with the brush holder from the engine;
• The anchor is removed and cleaned with a compressor.

Removing the rear wiper usually follows the same procedure, but you still need to remove the door trim to get to the wires and other components.

Verdict

On a VAZ 2109 car, the electric motor and wipers do not work at the same time for the following reasons:

• frozen brushes;
• incorrect location of brush holders in extreme positions and defects in geometry;
• oxidized/burnt contact connectors and defective wires;
• defective relay;
• wear of the brush-collector unit in the gearmotor;
• faulty limit switch.

A properly functioning gear motor may not transmit torque to the wipers in the following cases:

• the nuts securing the levers on the axis of the driven shafts of the trapezoid are loosened;
• the nut pressing the trapezoid crank to the driven gear of the gearbox is unscrewed;
• The teeth on the gears of the gearbox are chipped.

Proper operation of the windshield wiper is very important during bad weather. It provides good visibility on the road – the safety of the driver and passengers. Windshield wipers not working is a common problem on cars. The article discusses situations when the wipers on a VAZ 2109 car do not work, and how to repair the windshield wiper.

Engine repair

Many people think that replacing the engine with a similar one in a foreign car can solve the problem of slow wiper operation, but in fact, cleaning and lubricating the “original” engine is quite simple.

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If the grip is causing speed, you need to check how easily the armature rotates: if movement is difficult, damage to the brushes or excessive wear on the brushes should be suspected. They are easy to exchange for new ones.

Cleaning the manifold will also help. You will need fine sandpaper. The need for this procedure is said:

• Visible contamination;
• Noticeable scratches;
• Grooves on the metal.

It is necessary to replace the valve or transmission with the engine running if the manifold is too worn or burnt out.

Adjusting the speed is necessary if the wipers are running too slowly. This contributes to:

• Incorrect (too “dense”) lubrication;
• Gear wear;
• Traction deformation.

Eliminating these problems basically makes the wipers work faster and, in addition, significantly.

Brush sizes

VAZ 2113, 2114, 2115

The size of the windshield blades on these models is symmetrical and amounts to 51 cm on each side. But it is also possible to install brushes of a different size: on the driver’s side 53cm, on the passenger side 51cm. If you put both 53 cm each, then a thin strip of water will form in the middle.

The rear window blade size is 30cm. But you can put 33cm here, and there will be no problems. Some people also set it to 40cm, but in this case it will be necessary to increase the wiper stroke limit. In other words, so that the wiper does not fall very low and does not run into the rear window seal. This is done very simply: remove the motor and put it back, but offset by a couple of teeth.

VAZ 2108, 2109, 21099, 2110, 2111, 2112

The brush sizes are similar to 2114 (see above) because the body is the same, the windows are the same.

Kalina

As for Kalina, the driver’s brush is 60cm, the passenger’s brush is 40cm (41cm is possible). Rear wiper – 36cm.

Connection diagram

If you're having trouble, this chart will help you figure out what you're doing wrong.

• Jumper box (1);
• Thermobimetallic fuse (2);
• Engine (3);
• Washer valve (3);
• Mounting block (4);
• Ignition switch (5) and relay (6);
• Switch (7);
• Front wiper relay K3 (8);
• "A". The contacts of the wiper pads are marked;
• "B". Output to the 30th contact of the generator;
• A. Second speed;
• B. First;
• B. Spring switch;
• G and d. His contacts;
• Filter capacitors. C1, C2;
• Chokes. L1, L2.

Old style fuse box

Each fuse in the power supply is responsible for a specific circuit, here is a summary table.

What are the functions of the relay on the fuse box?

This is interesting: Why do the car windows close up in winter?

Engines do not work for VAZ 2108, 2109, 21099 cars

Wipers failure. "janitors". A very common malfunction of VAZ 2108, 2109, 21099 cars. Its main causes are problems with the electrical part and mechanical damage to the wiper elements. Let's consider a situation where the wipers are completely out of order and in no way react to the movement of the lever in the right steering column switch.

List of malfunctions leading to failure of wipers on VAZ 2108, 2109, 21099

At the beginning of the electrician:

- blown fuses in the mounting block;

For old model mounting block. 17.3722 is No. 5 and No. 4, for new ones 2114-3722010-60, 2114-3722010-10, 2114-3722010-18. F16 and F7. Fuses No. 5, F16. Cleaner, No. 4b A7. Washer.

When the fuses blow, not only the windshield wiper circuits may be shorted out, but also other circuits protected by them may be shorted out. See “Fuses and circuits of mounting blocks of VAZ 2108, 2109, 21099 vehicles protected by them.”

— the windshield wiper relay is faulty (52.3747, 525.3747);

The relay must be pressed during operation. If this is not the case, either it is faulty or its contacts are oxidized. Sometimes removing it and putting it back in a few times is enough to restore its effectiveness. The faulty relay was replaced with a new one.

You can check if it works by moving the steering column switch to the highest position. In this position the brushes should work even if the relay is faulty.

Purpose of windshield wiper relay contacts for testing it: input. 15, exit. S.

— The operating modes of the steering column and the wiper switches are faulty;

The purpose of the switch terminals for testing it is: current input. 53a, 1st speed. 53, 2nd. 53b, intermittent mode input. 53e, intermittent output 53.

The faulty switch must be removed, disassembled, the contacts blocked or replaced with a new one.

— the connectors in the windshield wiper circuit were jumping;

In the mounting block these are X1, X2, X3, X4, X11, next to the mounting block there is an engine connection block and a cover for the steering column switch.

— oxidized contacts in the wiper circuit connectors;

In turn, disconnect all connecting pads and clean the contacts with a small file. It is better to start with a walk-behind tractor near the mounting block, as it is constantly moistened. Here you can check the connection of the engine ground wire.

— windshield wipers are poorly worn or sagging;

The commutator to which the brushes are pressed may also burn.

You can test the functionality of your windshield wiper motor by applying voltage directly to it from the battery. Input: 1st speed. Gray wire from the mounting block, 2nd speed. Gray-orange wire from the mounting block. Intermittent work input. Gray wire from the mounting block.

— the brushes froze to the glass;

— after a long period of parking, the brush is glued to the windshield;

— damaged, jammed or incorrectly installed windshield wiper drive levers after repair;

— the plastic gear teeth in the gearbox are damaged.

Notes and additions

Source

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

This reason may lead to thoughts about a non-working electric motor or blown fuses.
We check the integrity of the fuses with a tester; if they are in working order, we proceed to inspect the trapezoid located under the hood; it is possible that it is deformed or there is a foreign object in it. In winter, the reason may be that the blades freeze to the windshield. If no flaws are found on the trapezoid, and the wiper blades move normally, you will have to check the electric motor. To eliminate other possible malfunctions, remove the electric motor and connect it directly to the battery. If it starts working, you need to look for the cause in the electrical circuit; if not, have it diagnosed by an auto electrician.