The abs lamp is on. What is ABS? What does it mean to turn on the ABS light? Why does the ABS error appear

A modern car is equipped with a large number of auxiliary electronic systems that increase driving safety. Some solutions improve directional stability, others affect braking performance, etc.

Drivers are familiar with these systems by their abbreviated names: ABS, ESP, EBD, etc. At the same time (ABS), the main task of which was to prevent complete wheel blocking during braking.

Moreover, in some countries, cars without ABS are prohibited by law to operate on public roads. Of course, if this system fails, the behavior of the car during braking changes greatly, and not for the better. Also on the dashboard, the ABS icon illuminates, indicating that troubleshooting needs to be done.

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Anti-lock braking system ABS: the device and principle of operation of the ABS on the car

So, before proceeding directly to malfunctions, we note that the advantages of the ABS system are obvious - the car remains controllable during emergency braking, which allows you to go around an obstacle, as well as avoid possible serious consequences.

In a nutshell, ABS is an anti-lock braking system that prevents the wheels from locking when braking. The driver senses the operation of the system by characteristic signs when the brake pedal depressed "crackles", "vibrates" or "shoots". The fact is that when the brake is firmly and constantly pressed, "impulse" locking and unlocking of the wheels occurs (several times per second).

If we compare braking with ABS and without ABS, during emergency braking on a car without such a system, the steering wheels will be blocked. This leads to the fact that by turning the steering wheel, it will not be possible to change the trajectory of the vehicle.

In turn, the anti-lock system also allows you to brake, but the rotation of the wheels remains, that is, you can brake and maneuver at the same time. Also, braking is more straightforward, the braking efficiency is the same on all wheels.

Having figured out what an ABS is, you should study what the system consists of. Although the device may differ slightly on different cars, the general design includes:

• wheel speed sensors;
• control valves in the hydraulic brake line
• a pump can also be integrated into the system;
• electronic control unit ABS;

It turns out that the ABS (sometimes mistakenly called ABC) is a kind of pressure regulator in the brake line. When braking, information from sensors about a sharp deceleration of the wheel enters the unit, which begins to change the pressure in the brake lines, reducing the pressure and unlocking the wheel.

The unit polls the sensors several times per second, which manifests itself as a "ratchet" on the brake pedal. Different systems have a different number of sensors and valves (four-channel ABS, three-channel ABS, etc.). As a rule, modern cars today have solutions with four channels (1 channel for each wheel).

ABS is on: why does the indicated indicator light up

So, having figured out how the ABS works, what it is and why the system is needed, let's move on to its problems. First of all, a warning lamp, which is located on the instrument panel, will indicate problems.

Of course, as in the case of airbags and other solutions, individual control units that are integrated into the common one poll the sensors after the ignition is turned on (self-diagnosis). In this case, on some cars, ABS burns for just a couple of seconds, after which it goes out, and this is the norm.

If the system detects problems, errors are written to the unit memory. In this case, the ABS icon is constantly on. It also happens that the ABS icon lights up in motion and does not go out. Also, the ABS icon may not light up after the ignition is turned on, that is, self-diagnosis does not occur. All this speaks of problems.

It is quite obvious that the overall safety will depend on the operation of the anti-lock braking system, while the "ABS" indicator warns the driver that the ABS system is not working and is disabled, that is, during emergency braking, the wheels will lock when the brake is pressed firmly.

In any case, diagnostics are needed. If we recall the general structure of the system, then it becomes clear that the ABS light is often on for one of the following reasons:

• The wheel rotation sensor is out of order;
• There are problems with the ABS module;
• The contacts from the sensor to the block are damaged, that is, communication is lost;
• There are problems with the crown on the hub;

In other words, the anti-lock braking system light on the instrument panel indicates that the ABS is defective and therefore deactivated. At the same time, even if the ABS caught fire, this does not mean that there is something wrong with the brake system itself. The fact is that another indicator () is responsible for the brakes.

One way or another, drivers often note that the ABS sensor has lit up directly in motion, or the indicator is on from the moment it starts. In this case, the problem can be constant and floating, when the ABS lights up and goes out from vibration on an uneven road.

It also happens that the sensors become very dirty, as a result of which they cannot transmit accurate information to the ABS control unit, which also leads to the indicator on the panel lighting up.

Also note that although the system is quite reliable, occasionally the electronics itself can fail. In this case, you need to do a reset. Sometimes, it is enough to disconnect the battery terminal for 10-15 minutes, then connect it back and start the car. If there are no breakdowns and everything is in order, after a reset, the system will work normally.

ABS light up: what to do to the driver

Having examined the possible causes, let's move on to what to do if ABS is on. As already mentioned, you can first try to reset the errors by removing the terminal from the battery.

If the driver is in a situation where the ABS lights up in motion, but at the moment, for one reason or another, it is not possible to carry out computer diagnostics, you can try to activate the system as follows:

• accelerate the car on a flat road up to 40 km / h;
• make sure that the emergency stop will not create problems for other drivers;
• sharply press on the brake pedal and brake completely;

In some cases, it happens that after these actions, the ABS light goes out, that is, the anti-lock braking system is active again. If this does not help, then the matter is not in electronics failures, there are more serious malfunctions.

Often, at the initial stage, you need to use diagnostic equipment in order to understand from which sensor there is no signal to the control unit, as well as which errors associated with the ABS are written in memory.

As practice shows, the blocks are quite reliable and often the ABS sensor on some wheel is the culprit. Taking into account the fact that on many cars these sensors are constantly contaminated, salts and reagents get on them, ABS sensors in an aggressive environment literally rot away and are destroyed after 3-5 years of active operation of the car. The solution is to clean the ABS sensor, attempt a repair, or replace it completely.

If the ABS light comes on for a while and goes out while driving, you should inspect the wire connections, the wires themselves, the contacts. We also add that if the ABS sensor lights up after the repair, it often happens that the craftsmen simply forget to connect the ABS sensor. In parallel, you should check how well the wheel is installed, since the sensor for this reason may transmit incorrect data to the unit.

Finally, we note that the most serious problem on which the ABS sensor on the instrument panel is lit is the failure of the ABS module itself. Both a software failure and damage to the control unit itself can occur. In this case, you need in-depth specialized diagnostics, repair or replacement of the electronic module.

Let's sum up

As you can see, the ABS system is not particularly complex in terms of design, but it performs important functions and directly affects safety. For this reason, it is recommended to carry out preventive diagnostics of ABS, as well as to eliminate any malfunctions and malfunctions of the system at the slightest sign of malfunction.

Why do the brakes squeak on the car, the grinding of the brakes is heard, the whistle or squeak when braking: the main reasons. Brake pads creak, what should the driver do.

In order to exclude the fact of errors during braking, because many drivers have no idea how to properly brake on a car, the ABS system was created. It allows you to effectively, without leaving even in icy conditions. Modern motorists are already so accustomed to this system that getting them behind the wheel of a car that is not equipped with this option will not lead to problems. Therefore, for many it is a great tragedy if one day a light bulb comes on.

System normal operation indication

On all vehicles equipped with the system, the ABS indicator comes on when the ignition is switched on. This is a kind of system check and demonstration to the driver that the system is active. Then, after a few seconds, the light should go out. If this did not happen, or if during the movement the ABS bulbs suddenly lit up, then there are clearly problems that need to be solved in the near future.

Therefore, answering the question why the ABS light is on? - we will give advice - look for a problem in the braking system or in the electronics that provide assistance during braking.

The most common reasons why an ABS light is on

1. A problem that occurs very often is a malfunction of one of the ABS. An ABS sensor is installed near the caliper of each wheel. And if at least one of them fails, the system will immediately inform you about this by highlighting the ABS symbol on the dashboard.
2. A similar problem is a break in communication between the ABS unit and the sensors. It can be a short circuit in the contact wires, problems with the contact itself.
3. Malfunctions associated with the control unit itself. Error in its work, or failure.

What to do about this problem?

Perhaps this section of our article is what you expect the most. Well, let's try to give you some useful tips.

As noted, the problem may lie in unreliable contact. To establish this, all connections must be checked. There are 4 pin plugs for each wheel, i.e. directly near the sensor itself, and contact 5 is in the engine compartment, it will not be a problem to find it, be guided by the VUT.

Disconnect each contact, clean any dirt if necessary, then reconnect. If that doesn't help, let's move on. If an on-board computer is installed on your car, you can find an error in the system using it. True, the computer will only give you a kind of code. Using this code, you can find information about the malfunction on the Internet. If there is no on-board computer, then nothing can be done.

The ABS system plays a special role in the operation of the entire vehicle, as it is responsible for safety while driving. Many drivers themselves unknowingly use the braking system, not as it should be. As a result, the operation of the ABS system is interrupted, which leads to an accident. Most often, this problem is faced by drivers in the winter.

Due to slippery roads, the driver constantly slows down when the car skids. In order to understand the problem, when the abs light came on and what to do in this case, you first need to know how the whole system works.

The essence of the ABS system

ABS has been designed specifically for drivers to see their mistakes when they hit the brake hard. The ABS system was originally programmed to block not all four wheels at once. When braking hard, the wheels begin to stop in turn, which reduces the likelihood of the car skidding. As a result, this reduces the speed of the car, but it should not stall.

What is included in the ABS system

• Wheel sensors that are responsible for wheel rotation. A separate sensor is installed on each wheel;
• Hydraulic block;
• A device that responds and controls the operation of the hydraulic unit itself;
• Instrument lamp abs,.

The main causes of a malfunction of the ABS system

If the ABS light on the dashboard lights up, this indicates a problem in the system. The driver should contact the service department to find out the reason for this warning. When the system is working properly, the light starts to burn when the engine starts, and after a few seconds it goes out. This indicates that the system is in good working order and it is in an active state. There are times when the light is on, but the car will not start.

In this case, there are many reasons, such as:

• The problem lies in the connecting cables;
• The ABS control unit is defective;
• There is no connection with one of the sensors, which is fixed on the wheels;
• A sensor on one of the wheels or sensors on all wheels are out of order.

With regard to wire breakage, it can occur while the vehicle is in motion. During vibrations when driving on bad roads, the cable connections begin to loosen and at some point break or even break off. The driver will be able to solve a problem of this nature on his own, without seeking help from professional specialists.

If the ABS sensor light comes on due to the failure of the sensors, then this may be the fault of the debris that gets clogged when driving. The driver cannot solve such a problem on his own. It is required to take the car to the service station. Often, the reason for the failure of the sensors is associated with the incompetence of the master at the service station. During wheel repair, the sensors are constantly turned off. Only after the masters have installed them back, they forget to connect them to the wheels. Incorrect wheel alignment will also cause the ABS lamp to come on.

With the ABS system, you need to be extremely careful, because it can be broken quickly, and it will take a lot of effort, time and money to fix them. If the ABS light comes on due to a broken control unit, then you cannot find out on your own. Only the on-board computer, which issues an error code, can save the ABS system. This code must be correctly deciphered, because it is the reason for the system failure.

In the case of periodic turning on and off of the ABS light, it is worth knowing that there is a problem with the contacts. The connection between the contacts is weak and therefore the wires need to be inspected. It is much more difficult to independently identify the cause of the constantly burning indicator.

Self-shutdown of the light bulb

Sometimes the ABS system malfunctions and in this case, you can not seek help from the technical service. There is an easy way to do this. It is required to accelerate on a flat section of the road at an increased speed, and then brake sharply. Sometimes this procedure helps to restore a failed system and the light stops lighting up.

If this does not help, then only experts who will diagnose the system on a special computer and make an accurate conclusion why the ABS light comes on can come to the rescue. It is impossible to spare money for such a service, since the safety of life not only of the driver, but also of the passengers who may be in the car depends on it.

Before the introduction of ABS in cars in the 70s of the 20th century, they were less safe when compared to today's modern cars. This was especially true of the moment when the driver had to move either on a wet or on a snowy, icy road. In those years, old cars were usually equipped with not very high-quality wheels (tires), not entirely reliable rear-wheel drive, as well as a simple and simple braking system without any electronics. But today, as you know, friends, everything has changed for the better. These days, most of the drivers do not even think about the modern braking systems on their cars. Today, each of us (drivers) feels confident and reliable while driving a car, even when driving or in particular when it is icy. The point is as follows. Most modern cars in our time are equipped (equipped) with front-wheel drive, which gives drivers confidence when driving a car. Moreover, these cars are also equipped with the latest modern electronic safety systems that control the grip of the car with the road surface, and excellent modern rubber, which demonstrates just some miracles of grip on a slippery road. One of the most important systems in any modern car today is the anti-lock braking system (ABS), which significantly reduces the braking distance of the car and prevents the wheels from locking, which can lead to a loss of traction and, accordingly, further to a skid.

The "ABS" system has already become a standard equipment in the automotive industry, it is nowadays installed on virtually every modern car produced by automotive companies. As we have already written more than once, this "ABS" system consists of several parts, namely, speed sensors that are installed specifically on the wheels of the car, from the electronic control unit for the anti-lock braking system and also hydraulic valves, which, according to a certain signal from the electronic unit, are here - they also regulate a certain braking force in each wheel without resorting to the driver's assistance (without his participation).

Wheel sensors "ABS" monitor the speed of rotation of each wheel of the car and constantly transmit data to the auto-computer. As soon as the "ABS" system unit begins to notice (see) that the wheel stops rotating, it immediately activates the valves of the hydraulic brake system and it, in turn, instantly begins to reduce the brake pressure in this very wheel. As a result, the pressure of the brake fluid in the wheel immediately drops and the braking force decreases, which further contributes to the unlocking of the wheel and the return of traction. This process is repeated through the computer of the car several times per second and until the car comes to a complete stop or the driver himself releases the brake pedal.

The "ABS" control unit and the vehicle computer automatically carry out a self-test of the anti-lock braking system each time the ignition is switched on. That is, every time you start the car, an automatic test of the "ABS" system occurs immediately. In the event that during the self-test the auto-computer receives insufficient data from the sensors, from the ABS control unit and from the hydraulic valves of the brake system, the warning lamp with the "ABS" icon comes on. For example, if the car computer or the same "ABS" control unit did not receive a feedback signal from the hydraulic pump of the brake system or from the same valve installed on each wheel, then the "ABS error" signal will immediately light up on the dashboard (on the panel), - in the form of an icon (indicator).

Pay your friends your attention specifically to the fact, namely, despite the malfunction of the "ABS" system and the appearance on the dashboard of its burning "ABS signal-icon" in the car itself, as a rule, the mechanical brake system still continues to work and you can safely without fear of continuing to drive the car, but already without this electronic system to help block the wheels during braking. That is, in other words, we can say that if the ABS system breaks down, you can safely use your car. However, in this case, you need to be extremely careful when braking on a wet, snowy or slippery road, since without this "ABS" system, the wheels of your car can periodically lock. Therefore, friends, we do not recommend that you, in the event of a malfunction of the "ABS" system, operate your car without proper repair for a long time. Thus, it should be clear to all drivers that if the auto-computer issues an "ABS system error", it is necessary to establish the cause of this malfunction as soon as possible and eliminate it as soon as possible.

Malfunction of the "ABS" system.

And so let's say. In your car, a warning light or icon on the dashboard lights up to warn you of problems with the anti-lock braking system. What should be done in this case?

First, to begin with, you need to make sure that the illuminated indicator of the icon indicates a problem with the "ABS system", and not a malfunction of the entire brake system of the car.

To do this, you need to listen carefully to your car when braking and turn your attention to the brake pedal. If, when braking, you begin to hear extraneous noises (whistling, knocking, squeaks, etc. sounds) or the brake pedal in the car has become too soft (softer than usual), then your task is a direct road to a technical auto center, where specialists must conduct a thorough diagnosis of the entire braking system of the machine. Please remember that all these signs indicate a serious malfunction of the entire braking system of the car, which can lead you to an accident while driving. Therefore, friends, remember that if the brakes of your car become very bad, soft and not quite normal, we do not recommend that you go on a public road with such brakes, as it can be very dangerous. In this case, you need to call a tow truck.

Also, in order to specifically find out that the illuminated icon-symbol "ABS" of the malfunction was the cause of the car's anti-lock braking system, you also need to make sure that no air has entered the brake system of the car, that the brake pedal on the car is still stiff and has not become too soft, and also make sure that the brake system is not. To do this, you must first check the level of the brake fluid in the reservoir, and then only all brake pipes and hoses for depressurization or breakage.

Among other things, you must remember that when the ignition is on, you should never panic when you see such an illuminated "ABS icon-symbol" on the dashboard. Maybe this is just a common mistake of the car electronics itself. Therefore, in such a situation, it is necessary to turn off the ignition and remove the key from the lock, and then turn on the ignition again and check again whether the "ABS symbol" icon appears on the dashboard (on the panel). You need to repeat this process several times. It is quite possible that this is really an error of the car computer and after several such switching on and off the ignition, this error of the "ABS" system will simply disappear.

If, nevertheless, after several attempts to turn the ignition on and off, this error of the "ABS" system on the dashboard does not disappear, that is, does not disappear, then you have two options:

First; - go to a car service and conduct a thorough computer diagnostics of the entire car. The main feature of the "ABS" system diagnostics is as follows, that is, in the electronic interrogation of the "ABS" unit with the help of special equipment for all kinds of errors in its system.

With the help of such a diagnosis, a specialist will be able to quickly determine the "code" of an error in the "ABS" system, which specifically led to the appearance on the dashboard of the signal "ABS symbol symbol".

Also, this very "error code" will give a specific hint where exactly to look for the cause of the malfunction of the entire "ABS" system.

The second option is needed only for those drivers who want to get to the bottom of this very truth on their own and on their own. In order not to use (not to use) expensive diagnostic equipment for testing the "ABS" system, you need a service manual for your car (a book on the repair and operation of your car model), also a simple car tool that is sold in any auto shop and of course a multimeter high impedance (high impedance). If you cannot find on sale the necessary book on repairing your car model, then please look for it on the Internet or download it to your computer or to your smartphone.

We draw your attention to the following, friends, that in some cars you can get direct access to the diagnostics of the same "fault codes" that are stored in the car's computer, and all this without using a special diagnostic scanner. To do this, you need to check each electronic unit of your car (including the "ABS" control unit) using the old proven method, namely, using two simple wires that you must connect to the corresponding connectors of the electronic systems of the car. For example, you can connect these two wires to check the circuit closure in the same "ABS" control unit, for which you need to connect these two wires directly to the connector of the "ABS" control unit and close the wires with a pin or a paper clip. If, after this procedure, the error of the "ABS symbol-icon" from the dashboard disappears, then the cause of such an error is located in the anti-lock braking system control unit itself. In the same way and in the same way, you can connect with a paper clip or a pin and without using wires, other specific and necessary contacts.

If dear motorists, your car is equipped with a more modern computer, where diagnostics of error detection is carried out only by connecting the scanner to the "OBD II" (On-Board Diagnostic) diagnostic port, then in order to establish the reason for the "appearance of the ABS symbol" on the dashboard, you you only need electronic diagnostics, which you can do either at the technical center or yourself, but with the help of an inexpensive error scanner you bought to the "OBD II" port.

Suppose the following, that you do not yet have any information about the errors in the car computer, which led to the appearance on the dashboard of the "ABS symbol". Do not rush to carry out computer diagnostics. First, check the fuse for the "ABS" control unit yourself. After all, a common cause of malfunction of the "ABS" system is the usual fuse of the anti-lock brake system control unit.

And so we follow, you checked the fuse of the "ABS" control unit, which turned out to be in working order. What to do now? Now you should use a multimeter to check the voltage and resistance in all electronic parts of the "ABS" system. To do this, familiarize yourself with the operation and repair manual of your car, namely, with all the corresponding reference values ​​of voltage and corresponding resistance in the sensors "ABS" and in the electronic unit "ABS".

True, we must not forget to check the main wiring harness that is connected to the "ABS" control unit before doing this. Carefully inspect the entire wiring harness responsible for the performance of the entire "ABS" system for damage. Also, remove this harness connector from the ABS control unit and carefully inspect all pins in the connector for contamination or oxidation. All contacts on the wires in the bundle must be clean. If the contacts need cleaning, use a special aerosol spray for cleaning electrical contacts and connectors to take and clean the connector of this contamination.

Also, when inspecting the ABS wiring harness connector pins, note the pins are corroded. Please remember that even microscopic chemicals of oxidation and corrosion can seriously affect the resistance in the electrical circuit of the "ABS" system. As many people know, a small voltage of electricity (millivolts) is transmitted through the wires and even the slightest increase in resistance due to contamination of the connector contacts can lead to malfunction of the entire electronic part of the "ABS" system, as well as cause an error in this system, which leads to light up on the dashboard display "ABS".

If the ABS controller looks intact and in working order, and disconnecting the ABS wiring harness connector from the anti-lock braking system did not solve the problem of the burning ABS symbol on the dashboard, then it is time to check the serviceability of the speed sensors wheels that transmit information to the "ABS" control unit. To do this, you must initially measure the resistance of these sensors, comparing them with the reference values ​​specified in the repair manual for your car.

If this resistance is within the permissible limits, then proceed to a visual inspection of the wheel speed sensors themselves, the wires themselves suitable for them and to the inspection (inspection) of the condition of each gear axle (or on each wheel hub), which are installed in the machine on each wheel ... As a rule, such sensors related to mechanical sensors were installed on old cars.

Also, today many modern cars currently use sensors that need to be powered by electricity. As a rule, "ABS sensors" are used based on the "Hall effect" (a semiconductor plate is installed inside the sensor), which, when interacting with a magnetic ring on the wheel hub, record the change in the magnetic field itself and the rate of formation of electrons on the plate inside the "ABS sensors".

Unfortunately, not in all cars these "ABS sensors" and the wires through which the signal from the sensors is sent to the "ABS" system control unit are reliably protected from the aggressive environment. Ultimately, they can fail due to damage and dirt on them.

In order to check the condition of the wheel speed sensors and the "ABS" system wires, you must first remove the wheels from the car, namely, alternately raise the car with a jack from the right side and remove each wheel.

This gives you free access to the sensors and wires.

If, when examining the ABS wiring harness and wheel speed sensors, you find any damage (or the wheel speed sensor is not securely fixed or it is loose), then you can assume that you have found the cause of the error on the dashboard, which informed you about a malfunction of the "ABS" system.

But if, when inspecting these wires and the "ABS sensors" you did not find any external damage on them, then remove all the speed sensors of the "ABS" system from the hub (or from the axle) and check their resistance, as we said, using a multimeter ( if you haven't done so before). Control values ​​of resistance in wheel speed sensors can be found in special books on the repair and operation of your car model.

We also advise all car owners from time to time to inspect the wires of the wheel rotation sensors of the "ABS" system, do this even if the car's anti-lock braking system is working properly and the "ABS symbol" icon does not light up on the dashboard. The point here is this, all the wires and wheel rotation sensors are located at the bottom of the car and they are constantly exposed to aggressive environmental influences. Remember friends that the main enemy for wires and sensors is salt, which is contained in road reagent, in water and in snow.

For what reasons is the "ABS" indicator on the dashboard lit, if the sensors and the control unit with the "ABS system" wires are in good working order?

If, after testing, you find that all the electronic parts of the "ABS system" are in good working order, and the "ABS symbol" on the dashboard is still on, then most likely the problem itself is associated with the hydraulic valve system of the "ABS" system, which unfortunately not subject to partial repair.

The ABS system is an important component of safe driving. It is known that the reason for a considerable number of road accidents lies in the fact that drivers use the braking system of the car incorrectly. In particular, this problem arises in the winter, when the road surface is rather slippery. Let's take a closer look at the composition of the ABS system, as well as tips on what to do if the ABS light comes on.

The ABS system is used in order to minimize driving errors during sudden pressing on the brake pedal. The work of the system is that it simply does not allow all wheels to lock at the moment when there is a sharp braking. Pulse braking is used, that is, the wheels start to rotate / stop in a specific order. This solution reduces the risk of a car skidding and ensures the smoothest possible speed reduction.

ABS system composition:

1. Wheel rotation sensors. All wheels are equipped with separate sensors.
2. Hydraulic block.
3. A device that monitors the correct operation of the hydraulic unit.
4. ABS light on the dashboard (there is a separate article on our website about the car dashboard indicators).

If you see that the ABS light on the dashboard lights up, this is a sign of certain problems with the ABS system. If everything is working properly, the ABS light should come on when the ignition is turned on and go out after a few seconds. This is in order for the driver to understand that the ABS is active. If the ABS light is on and does not turn off, the reasons may be as follows:

• Problem in connecting cables.
• Failure of the ABS control units.
• Lost communication with one of the sensors located on the wheels.
• Failure of sensors.

Broken wires can occur while driving. In addition, constant vibrations often lead to the fact that the cable connection areas are weakened. You can solve such problems with your own hands without much difficulty.

If the ABS light is on for a reason related to the sensors on the wheels of the car, the problem may be debris or dirt getting into them. In addition, it often happens that the wheels are being repaired at the service station, the ABS sensors are turned off and forgot to reconnect. Another option is incorrect wheel installation, which also leads to the fact that the ABS light on the panel is on.

If the ABS light comes on due to the fact that the system control units are broken, it is very difficult to establish the cause on your own. Often, the task can be simplified by an on-board computer displaying an error code, but in such cases you need to clearly understand how it is deciphered and where exactly the problem arose.

If the ABS light is on, off and on again, most likely a loose connection somewhere. In order to solve the problem, you need to examine all contacts. However, if the indicator is on continuously, it can be very difficult to troubleshoot the problem.

You can try to restore normal ABS function by accelerating on a level road and pressing the brake pedal sharply. However, if after performing this procedure, the light does not turn off, and all efforts are in vain, we recommend visiting a specialized service. There, experts will be able to diagnose the vehicle's ABS system and "cure" it. You should not spare money for such services, since your safety, and maybe even your life, depends on it.