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).
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.
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.
The level of safety in rainy weather depends on many automotive devices. Experienced drivers put tires, wipers and lights at the forefront. All in order not to float into a ditch due to an unclear view. The windshield washer system is rarely mentioned. Meanwhile, it plays an important role in winter and summer, both in dry and wet weather.
Causes of malfunctions and repairs
Wipers do not work when switching modes
If, after turning on the windshield wiper on your VAZ-2109, nothing happens, and the relay does not make a click, and the sound of the electric motor is not heard, the reason may be blown fuses, a non-working relay or switch.
First you need to check the fuse, which is located in the mounting block under the designation F 5. You can check its integrity using a conventional tester. You also need to check the bimetallic fuse located in the purifier gearbox. If the wipers stop working with the onset of cold weather, then this is the reason, since its function is to protect the wiper from overheating if the wipers freeze to the glass. Its work is also checked by a tester.
Next you should check the relay located in the mounting block under the designation “K3”. You need to replace the relay with a working one and check the operation of the wipers. If they work, we purchase a new relay. If the change does not give a positive result, you need to continue the search. You can check the functionality of the switch yourself, but it is quite difficult, so it is better to immediately replace it with a new one.
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.
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.
Let's sum it up
The washer sprayer on a VAZ 2109 may not work for many reasons:
- there is no liquid in the tank;
- the motor is broken;
- solenoid valve stuck;
- fuse F7 burned out;
- the steering column switch is broken;
- the wire is broken;
- the injectors are clogged.
All faults are diagnosed by elimination. In some cases, a multimeter is used.
The system is upgraded by installing a high-performance pump, check valve and filter. A common tuning procedure is the installation of two motors and removal of the EMC valves.
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 a windshield wiper is to remove dirt, raindrops and snow from the windshield and rear window during bad weather using brushes and washer. If the VAZ wipers do not work, this reduces safety, so it should be brought into working condition as quickly as possible.
In order to identify and troubleshoot problems, you need to know the windshield wiper design.
Components of a car windshield wiper
Its design includes:
- Electrical engine;
- lever system (trapezoid);
- gearbox;
- windshield washer motor;
- tank;
- washer pump;
- washer solenoid valve;
- brushes and springs.
In addition, the design of the windshield wiper includes various small parts.
Glass cleaner circuit
Diagram of glass cleaner and washer
The following components are marked with numbers on the diagram: 1 - electric washer motor; 2 – electric motor for wipers; 3 — mounting block; 4 – ignition switch; 5 – relay that relieves the windshield washer switch; K3 – windshield wiper relay.
The glass cleaner can operate in three modes. Mode “I” is intermittent. Mode “II” is constant. In this mode, the brushes move at low speed. Also a permanent mode is mode III. It differs from the previous one in the high speed of movement of the brushes. The mode is turned on using a switch (video author - Autoelectrics HF).
New model power supply
| Fuse number | Rated current | The electrical circuit for which it is responsible |
| 1. | 8A | Backup fuse |
| 2. | 8A | Backup fuse |
| 3. | 8A | Backup fuse |
| 4. | 16A | Radiator fan relay winding, electrical circuit of switch and heater motor |
| 5. | 3A | Hazard warning switch in turn signal mode, turn signal switch, turn signal switch, turn signal warning light, turn signal warning light, reverse optics switch, reverse lights, tachometer, voltmeter, gasoline level indicator, gasoline level sensor, gasoline level warning light, pointer coolant temperature, temperature sensor, warning lamp and emergency oil pressure sensor, brake emergency lamp, brake system hydraulic switch, hand brake switch |
| 6. | 8A | Brake light switch and bulbs, interior lighting |
| 7. | 8A | Room lighting lamps, indicator lamp for switching on the dimensions, lamp for illuminating the heater and cigarette lighter handles, glove compartment lamp, switch and lamp for instrument panel illumination |
| 8. | 16A | Horn, horn switch, radiator fan motor |
| 9. | 8A | Left side lamp, left rear side lamp |
| 10. | 8A | Right side lamp, right rear side lamp, fog light switch, fog light indicator light |
| 11. | 8A | Turn signal switch and breaker, turn signal lamps, warning lamp in emergency mode |
| 12. | 16A | Cigarette lighter, socket for carrying lamp |
| 13. | 8A | High beam right headlight |
| 14. | 8A | Main beam of the left headlight, high-range optics warning lamp |
| 15. | 8A | Low beam right headlight |
| 16. | 8A | Low beam left headlight |
What does the relay do?
| Relay number | Its functions |
| K1 | Without it, the rear window washer motor will not work. |
| K2 | Responsible for the operation of turn signal lamps and light signaling |
| K3 | Provides operation of the windshield wiper |
| K4 | Protects brake lights and vehicle dimensions |
| K5 | Provides operation of high beam lights |
| K6 | Guarantees operation of the optics washer device |
| K7 | Protects the power window motor if your vehicle has one. |
| K8 | Sound signal or just a horn |
| K9 | Protects against high voltage going to the engine cooling fan |
| K11 | Responsible for the operation of the rear window heating device |
| K12 | Provides operation of low beam lights |
Common faults
The main signs of a malfunction of the VAZ 2109 wipers:
- complete stop of the wipers, no response to pressing the levers;
- brushes do not work intermittently;
- wipers work slowly;
- the movement of the brushes does not correspond to the mode turned on in the cabin.
The most common malfunctions of VAZ 2109 windshield wipers are:
- contacts have oxidized;
- fuses are blown;
- electrical circuit breakage, wiring damage;
- the switch does not work;
- the wiper, which worked in one mode, does not switch to another;
- The windshield washer motor does not work;
- The rear wiper of the VAZ 2109 does not work;
- breakdown of the electric windshield wiper motor.
Rear window wiper
Old style fuse box
Each fuse in the power supply is responsible for a specific circuit, here is a summary table.
| Fuse number | Current strength | The chain he protects |
| F1 | 10A | Backup fuse |
| F2 | 10A | Turn signal indicators, hazard signal breaker (in hazard mode), hazard warning light |
| F3 | 10A | Rear brake lights, interior lighting |
| F4 | 20A | Rear window heating element, rear window heating switch contacts, carrying socket, cigarette lighter |
| F5 | 20A | Horn (horn), horn switch |
| F6 | 30A | Backup fuse |
| F7 | 30A | Heater fan electric motor, windshield washer electric motor, electric radiator fan relay, rear window heating relay, rear window heating indicator light, glove box light |
| F8 | 7.5A | Backup fuse |
| F9 | 7.5A | Backup fuse |
| F10 | 7.5A | Left side light |
| F11 | 7.5A | Right side lamp |
| F12 | 7.5A | Right low beam headlight |
| F13 | 7.5A | Left low beam headlight |
| F14 | 7.5A | Left high beam headlight, high beam indicator lamp |
| F15 | Right high beam headlight | |
| F16 | 15A | Turn signal indicators and emergency flasher relay-breaker (in the turn signal indication mode), turn signal indicator indicator lamp, rear reverse lights, gear motor and windshield wiper activation relay, oil pressure indicator lamp, hand brake indicator lamp, coolant temperature indicator, fuel level indicator, fuel reserve warning lamp, voltmeter |
What are the functions of the relay on the fuse box?
| Relay number | Functions |
| 1 | Performance of the front optics cleaning elements |
| 2 | Rear window washer motor performance |
| 3 | Protection against breakage of turn signal and light signaling lamps |
| 4 | Protection against failure of the windshield wiper motor |
| 5 | Allows you to determine the performance of the lamp |
| 6 | Rear window defogger overvoltage protection |
| 8 | High beam lamps |
| 9 | Low beam lamps |
| 11 | Responsible for the operation of the engine cooling fan. If this relay fails, the risk of engine overheating increases. |
| 12 | Klaxon operation |
| № | A | Purpose |
| 1 | 8 | Right fog lamp |
| 2 | 8 | Left fog lamp |
| 3 | 8 | Headlight cleaners (at the moment of switching on) Headlight wiper switch relay (contacts) Headlight washer switch valve |
| 4 | 16 | Headlight wiper motor Headlight wiper relay (winding) Heater motor Window washer motor Rear window wiper motor Rear window washer timing relay Windshield and rear window washer activation valve Cooling system electric fan relay relay coil Coil of the rear window heating relay coil Rear window heating control lamp Wardrobe lighting lamp box |
| 5 | 8 | Turn indicators in turn signal mode and the corresponding indicator lamp Rear lights (reversing lamps) Indicator lamp for fuel reserve, oil pressure, parking brake, brake fluid level, carburetor choke Voltmeter and indicator lamp for charging the battery Gearmotor and windshield wiper switch relay Generator excitation winding (at start-up) “STOP” indicator lamp Coolant temperature and fuel level indicators |
| 6 | 8 | Rear lights (brake lights) Body interior light Power windows and power window relay |
| 7 | 8 | License plate lights Engine compartment lamp Indicator lamp for turning on side lighting Instrument lighting lamp and cigarette lighter lamp Heater lever illumination panel |
| 8 | 16 | Engine cooling fan electric motor and its activation relay (contacts) Sound signal and its activation relay |
| 9 | 8 | Left headlight (side light) Left rear light (side light) |
| 10 | 8 | Right headlight (side light) Right rear light (side light) |
| 11 | 8 | Direction indicators and hazard warning relay (in hazard mode) Hazard warning lamp |
| 12 | 16 | Heated rear window element and heating relay Cigarette lighter Socket for portable lamp |
| 13 | 8 | Right headlight (high beam) |
| 14 | 8 | Left headlight (high beam) High beam indicator lamp |
| 15 | 8 | Left headlight (low beam) |
| 16 | 8 | Right headlight (low beam) |
| Relay | ||
| K1 | Rear window washer time relay (451.3747 / 2108-3747110, 2108-3747110-06) | |
| K2 | Relay-breaker for direction indicators and hazard warning lights (493.3747 / 2108-3747010-02) | |
| K3 | Windshield wiper relay breaker (522.3747 / 2108-3747710) | |
| K4 | Contact jumpers in place of the lamp integrity monitoring relay. Lamp integrity monitoring relay (4402.3747 / 21083-3747410, 21083-3747410-06) | |
| K5 | Headlight high beam relay (113.3747 / 2105-3747210-10, 2105-3747210-12) | |
| K6 | Headlight cleaner relay (112.3747 / 2105-3747210, 2105-3747210-02) | |
| K7 | Power window relay (13.3747 / 2105-3747210-10, 2105-3747210-12) | |
| K8 | Relay for turning on sound signals (13.3747 / 2105-3747210-10, 2105-3747210-12) | |
| K9 | Relay for turning on the electric cooling fan (13.3747 / 2105-3747210-10, 2105-3747210-12) | |
| K10 | Relay for turning on the heated rear window (13.3747 / 2105-3747210-10, 2105-3747210-12) | |
| K11 | Relay for low beam headlights (13.3747 / 2105-3747210-10, 2105-3747210-12) | |
This is interesting: Why do the car windows close up in winter?
Troubleshooting methods
If the wipers on a VAZ 2109 do not work, then you can detect and fix the breakdown yourself.
The renovation is taking place in stages:
- first the assembly is disassembled;
- then faults are identified;
- then repair or replacement of faulty parts is carried out;
- At the final stage, the assembly of the unit is performed.
Removed glass cleaner
Dismantling consists of the following sequence of actions:
- First of all, you need to de-energize the car by removing the negative terminal from the battery.
- Next, the brush arms are installed in a vertical position, then the fastening nuts are unscrewed. Now they can be removed.
- Armed with pliers, we pull the levers off the slots, trying not to damage the threads.
- The plastic protective caps are removed from the slots.
- Then you need to unscrew the nuts securing the bracket and you can remove them along with the washers that are located under them.
- Next, in the engine compartment, you need to disconnect the wire block that serves to power the windshield wiper motor.
- At the next stage, it is necessary to move the heater fan so that it does not interfere with removing the mechanism. To do this, unscrew the fastening screws.
- We remove the cover from the mounting block and dismantle all the relays located in it, since they will interfere with further work.
- Unscrew the lower bolt securing the purifier bracket.
- Then we remove the plastic wire holder through the gap in the body and remove it so as not to lose it.
- We remove the device rollers through the holes in the body. Then, slightly lifting and moving the windshield wiper with the motor up and to the side, remove the assembly.
Next, the mechanism is completely disassembled. A visual inspection of all parts is carried out, including the wipers of the VAZ 2109. A broken brush can be replaced, but it is better to change both. If mechanical damage is detected or parts are severely worn, they need to be replaced.
After all faults have been detected and eliminated, we reassemble the unit in the reverse order and install it in its original place. After the repair, it is necessary to connect the negative terminal on the battery and check the operation of the windshield wiper.
In this way, repairs and modifications to the VAZ 21099 glass cleaner are carried out with your own hands. The process is long and tedious, but can be done independently. This will make it possible to save money on expensive repairs at a service station.
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.
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.
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
