If you are faced with the fact that your wipers on your VAZ 2114 are working slowly, do not worry. Many motorists have to deal with this problem; the problem lies in the mechanism used; it often fails. This is evidenced by numerous reviews from the owners of this model, and the reasons for the breakdown can be very diverse. Often products stop working due to imperfect design. Be sure that you will be able to modify the wipers of the VAZ 2114.
Frequent causes of breakdown
If you want to have fast wipers on your VAZ 2114, then you should figure out what causes the breakdown. The system on a car quickly wears out and becomes unusable, it is worth considering the main causes of breakdowns:
- A short circuit occurs in the winding, which is why it is worth carefully monitoring the operation of the structure. If you notice that the winding is worn out, then the best solution would be to replace it.
- The system levers have failed, this directly affects the operation of the wipers, in particular the speed.
- The problem may be that the brushes themselves are simply frozen to the glass; this often happens in winter. Therefore, in winter it is worth monitoring your brushes more carefully.
- Problems with power cords cause products to malfunction due to lack of power.
- Our roads are not blessed with the absence of stones, so it is worth checking whether a stone or other foreign object has entered the system. It is better to avoid such problems, since a foreign body can not only slow down the wipers, but also cause serious damage.
Windshield wiper VAZ-2109
The windshield wiper kit consists of a gearmotor (an electric motor with a gearbox), arms and brushes.
The movement of the brushes is parallel. The electric motor of the cleaner is excited by permanent magnets, three-brush, with two rotation speeds
To protect the electric motor from overloads when the brushes freeze to the glass or there is high resistance to their movement, a thermobimetallic fuse is installed in the wiper
Fig. 1 Scheme for connecting the windshield cleaner and washer: 1 - electric motor for the windshield washer; 2 - electric motor for windshield wiper; 3 - mounting block; 4 - ignition switch; 5 - ignition switch unloading relay; 6 — windshield wiper and washer switch; Short circuit - windshield wiper relay; A - to power supplies; B - the order of conditional numbering of the plugs in the block of the wiper motor
The circuit diagram for switching on the purifier is shown in Fig. 1.
The cleaner has three operating modes: I - intermittent mode, carried out in positions II and III of switch lever 3
This mode is provided by an electronic relay K3 type 525 3747 installed in the mounting block.
This relay also turns on the wiper gear motor (low speed) when the windshield washer II is turned on - mode - constant, with low speed of movement of the brushes, carried out in position IV of switch lever 6.
In this case, the supply voltage is supplied to the electric motor brush, located in the geometric neutral III - mode - constant, with a high speed of movement of the brushes. Occurs in position V of the switch lever 6. In this case, the supply voltage is supplied to the brush, offset from the geometric neutral
A relay is used to unload the contacts of the ignition switch
How to solve a problem?
If you are thinking about how to increase the speed of the VAZ 2114 wipers, then you should look at the root of the problem. And the main reason lies precisely in the motor of the mechanism and the trapezoid of the structure. If you do not pay attention to your wipers for at least a couple of months, then as a result you will notice a decrease in the speed of their operation.
To prevent such a problem, it is necessary to take care of the mechanism in a timely manner, and to take care of it correctly.
To return the structure to the required speed, you will need to disassemble the mechanism, clean the motor, or you can sand it with sandpaper. It is also worth lubricating the hinges that are located between the slats. If such care does not help, then all that remains is to replace the product or take the car to a service center.
How to speed up wipers in intermittent mode?
If you are wondering how to make wipers faster on a VAZ 2114, then you should turn to the features of the wipers. This car has 3 wiper modes, namely intermittent, fast and normal.
Intermittent and normal modes imply movement of the brushes at the same speed, which is slightly less than in fast mode. You can set the speed in intermittent mode to be maximum, but in this case it will decrease in fast mode. In fact, to do this you need to swap the wires in the connector to which the wipers are connected. In order to determine which wires to change, it is worth looking at the diagrams.
Windshield wiper VAZ-2109
The windshield wiper kit consists of a gearmotor (an electric motor with a gearbox), arms and brushes.
The movement of the brushes is parallel. The electric motor of the cleaner is excited by permanent magnets, three-brush, with two rotation speeds
To protect the electric motor from overloads when the brushes freeze to the glass or there is high resistance to their movement, a thermobimetallic fuse is installed in the wiper
Fig. 1 Scheme for connecting the windshield cleaner and washer: 1 - electric motor for the windshield washer; 2 - electric motor for windshield wiper; 3 - mounting block; 4 - ignition switch; 5 - ignition switch unloading relay; 6 — windshield wiper and washer switch; Short circuit - windshield wiper relay; A - to power supplies; B - the order of conditional numbering of the plugs in the block of the wiper motor
The circuit diagram for switching on the purifier is shown in Fig. 1.
The cleaner has three operating modes: I - intermittent mode, carried out in positions II and III of switch lever 3
This mode is provided by an electronic relay K3 type 525 3747 installed in the mounting block.
This relay also turns on the wiper gear motor (low speed) when the windshield washer II is turned on - mode - constant, with low speed of movement of the brushes, carried out in position IV of switch lever 6.
In this case, the supply voltage is supplied to the electric motor brush, located in the geometric neutral III - mode - constant, with a high speed of movement of the brushes. Occurs in position V of the switch lever 6. In this case, the supply voltage is supplied to the brush, offset from the geometric neutral
A relay is used to unload the contacts of the ignition switch
Useful video
You can see the results of the work on “speeding up” the wipers in the video below:
Are you faced with the fact that your VAZ-2109 wipers are working slowly? It doesn’t matter, this problem haunts many motorists. A careless mechanism, which only yesterday worked like a clock, has a stupid habit of slowly and inexorably breaking down. This unpleasant feature of cars of this brand has already managed to annoy all owners of the VAZ model 2109, if you believe the reviews of the majority of domestic motorists.
There can be a huge number of reasons for this, and it is not always due to driver negligence. Windshield wipers often fail due to banal technical imperfections in the design of everyone's favorite VAZ. But you shouldn’t scold the manufacturers prematurely and go to a car service center. Speeding up a worn-out mechanism with your own hands is simple and anyone can do it.
windshield wipers for VAZ 2108, VAZ 2109, VAZ 21099 - design features
The windshield wiper kit type 33.5205 consists of an electric drive, arms and brushes. The movement of the windshield wiper blades is parallel. The windshield wiper connection diagram is shown in Fig. 9.21. Windshield wipers can be domestic or imported. Windshield wipers are interchangeable in connection and mounting dimensions. The gearmotors (electric motors with gearboxes) of these windshield wipers are also interchangeable, although they have some differences in design. The windshield wiper has three operating modes: the 1st and 2nd modes are constant (but with different speeds of movement of the blades), and the 3rd mode is with intermittent movement of the wiper blades. The windshield wiper electric motor is excited by permanent magnets, three-brush, with two rotation speeds. To protect the electric motor from overloads when the brushes freeze to the glass, there is high resistance to their movement, or when the windshield wiper mechanism gets stuck, a reusable thermo-bimetallic fuse is installed in the wiper. For imported gearmotors, the fuse is installed under the gearbox cover on the limit switch panel, and for domestic gearmotors, the fuse is located on the wiper drive bracket. The intermittent operation of the windshield wiper is ensured by an electronic relay type 52.3747 installed in the mounting block. This relay also turns on the windshield wiper motor (low speed) when the windshield washer is turned on. A relay of type 526.3747 without terminal “K” is installed in the mounting block 2114-3722010. Its characteristics are the same as those of relay 52.3747. This relay can also be installed in the previous mounting block. On some VAZ 2108 and VAZ 2109 vehicles, tailgate glass wipers can be installed along with washer solenoid valves. The windshield wiper connection diagram is shown in Fig. 9.22. The tailgate glass wiper consists of a gear motor, a lever and a brush. Laying the lever with a brush on the right in the direction of travel of the car. A thermobimetallic fuse is installed in the windshield wiper gear motors to protect against overloads. For a windshield wiper, when the gearmotor is loaded with a torque of 0.49 N•m (0.05 kgf•m), a supply voltage of 14 V and an ambient temperature of (25±10)°C, the number of double strokes of the gearmotor shaft should be (50±5) min, and current consumption is no more than 2 A.
Common causes of malfunction
Why did the wipers start working slowly? This question is asked most often among VAZ owners. It just so happens that almost all cars of the 2109 model suffer from this disease. So why do the wipers not work? Why does the system wear out so quickly? Below is a list of the most common windshield wiper problems:
- Damage to system levers. Even a slight change in the shape of these parts can affect the speed of the mechanism.
- Faulty power cords. If there is not enough electricity supplied to the system, it is no wonder that it will slow down.
- Foreign objects in the mechanism. Any pebble or blade of grass that accidentally gets into the device can cause serious damage, not to mention slowdown.
- The blades are frozen to the windshield. In winter, you need to pay especially close attention to the mechanism if you do not want to tear off its frozen parts from the glass.
- Short circuit in the winding or excessive contamination of parts. The structure must be carefully monitored; it must be cleaned from time to time and the winding changed if necessary.
Repair
To troubleshoot problems with the wipers on your VAZ 2109, it is not at all necessary to contact a service station. The work can be done with your own hands, saving a decent amount of money.
Repair consists of performing several operations:
- Disassembling the unit;
- Troubleshooting;
- Eliminating the causes of purifier failures;
- Reassembly.
Dismantling
The first step is to learn how to remove windshield wipers. This will give you access to the device and all its components.
It is enough to follow the specified sequence of actions and first familiarize yourself with the wiper diagram in order to do everything correctly.
Scheme
- First, disconnect the negative terminal of the battery to de-energize the car.
- Remove the brush arms by moving them to a vertical position and unscrewing the fastening nuts. Unscrew the nuts carefully so as not to push the lever out. Otherwise, under the action of the spring, it will fly into the glass and break it.
- By unscrewing the fasteners, the levers can be removed. It is not always possible to do this manually, so arm yourself with pliers. Be careful not to damage the threaded area. To avoid this, screw the nut back onto the splines, but not completely.
- Remove the protective caps made of plastic from the slots on each side.
- Unscrew the upper mounting nuts with the bracket and remove them. Under them there are rubber washers, which are also dismantled.
- Lift the hood and disconnect the wiring harness that powers the wiper motor.
- Unscrew the heater fan mounting screws and move it slightly to the side. This way, when dismantling the purifier, it will not interfere with you.
- Remove the cover from the relay and fuse box. You need to remove not only the wiper relay, but also everything else. Otherwise, they will interfere with your further processes.
- Unscrew the lower fastening nut of the mechanism, remove the plastic holder of the wiring harness from the electric motor from the hole in the car body. Now you can remove the holder so that it does not get lost during the repair.
- All that remains is to push the mechanism roller inside, then lift the electric motor and the windshield wiper mechanism slightly up and to the side. This way you can easily remove the node.
After completely disassembling the unit, you can check the condition of each wiper mechanism and determine the cause of any malfunctions.
Device
Checking the status of elements
By disassembling the design of the wipers on your VAZ 2109, you can identify the damaged components that led to the problem. We will tell you exactly how to find the culprits.
| Element | Your actions |
| Electric motor housing, stator windings and armature shaft | These elements need to be checked for mechanical damage on the surfaces. The stator should not have any traces of contact with the armature, and vice versa. If defects or scratches are found on the surfaces, try sanding them. If this measure does not help, the components must be replaced |
| Brush springs | Springs may become damaged and lose their elasticity as they are used. The brushes themselves suffer from this and do not work properly. The presence of wear on the springs indicates the need to replace them. |
| Brushes | Check how freely the brushes move in the holders. If there are any jams, try sanding the assembly. The presence of chips, cracks and signs of wear requires replacement of brushes |
| Collector | It is not uncommon for traces of soot and brush friction to appear on the surface of the commutator. Polishing paste will help to cope with the problem. The anchor must be clamped in the drill chuck, which will increase the efficiency of polishing. There should be no scratches, chips or other damage on the collector. Again, if you have them, try sanding them. Otherwise, the anchor is changed to a new one |
| Reducer drive gear | Check for mechanical damage and chipped teeth. If some teeth are missing, the brushes may work slowly or the intermittent operation may be disrupted. It's best to replace the gear. When replacing, treat the new gear with plastic grease and lubricate the gear housing, having first cleaned it of traces of old lubricant |
| Wiper drive rods | Make sure they are not bent. If there are slight deformations, you can try to align the rods manually or with tools. If alignment cannot be achieved, replace |
| Threaded part of lever rollers | Threads and splines are often damaged. If this happens, you will have to replace the entire linkage assembly. |
| Fuses and relays | Quite often, the cause of a wiper failure is a relay or a blown fuse. The fuse for the glass washer motor is element F7, and the relay responsible for the unit of interest to us is indicated in the mounting block K3. |
Checking the fuse box
If the windshield wiper fails, first check to see if the fuse has blown and if everything is in order with the relays that are responsible for the operation of this unit. Often complex repairs are not required; it is enough to simply remove the burnt-out fuse element and replace it with a new one.
In some cases, a blown fuse indicates something more than just a broken fuse. What exactly causes the fuse to break is an important question. Therefore, it is recommended to disassemble the wipers, check the condition of all components and figure out what was the real reason for the failure of the brushes on the VAZ 2109.
True problems and ways to solve them
The mechanism’s motor and the windshield wiper trapezoid itself are the main pitfalls of this malfunction. Once you forget about them for just a couple of months, the wipers begin to slow down, gradually becoming unusable. Unfortunately, there is no easy way to find out about this problem. You can learn how to properly and promptly care for a car only by facing all its shortcomings face to face or by asking your friends, at worst.
The thing is that without timely cleaning and lubrication, both parts quickly wear out and eventually refuse to work. Trapezium malfunctions lead in frequency of occurrence. Either the hinges begin to jam, or the strips bend for unknown reasons. However, the motor is also not far behind. Coupled with the loss of voltage due to damage to the wires, the part causes many problems, sometimes forcing an inattentive driver to buy a new one if he does not check the serviceability of the electrical wiring.
So what can you do to return your wipers to their former speed?
The answer is simple: disassemble the mechanism, clean and sand the motor with sandpaper, lubricate the hinges located between the trapezoid bars - that’s all.
Unfortunately, if this does not help, and you have not found any other faults, only replacing parts or a trip to the service center can help you. However, replacing the notorious trapezoid or motor solves the problem in most cases.
