When you turn the ignition key, the exclamation mark on the VAZ 2110 lights up

Hi all! Today I want to raise a rather current topic that, judging by the questions on the forums and the number of requests in search engines, worries a large number of people. I want to talk about a phenomenon where when you press the brake pedal, an exclamation mark on the dashboard lights up.

I will try to give a comprehensive answer to this question and explain why this happens and what kind of damage may be involved. Go!

Let me start, perhaps, with the fact that if a lamp (!) lights up on the panel, it means something is wrong with the brake system. As a rule, this indicator signals a low level of brake fluid (BF) in the system. As you can imagine, faulty brakes are no joke and the problem needs to be addressed. I’ll say more, if anyone doesn’t know, OPERATING A CAR WITH A BURNING INDICATOR (!) IS PROHIBITED! Since you don’t know what’s wrong and what caused this error to appear on the dashboard.

The exclamation mark on the instrument panel lights up. What to do if the lamp (!) comes on

Hi all! Today I want to raise a rather current topic that, judging by the questions on the forums and the number of requests in search engines, worries a large number of people. I want to talk about this phenomenon, when when you press the brake pedal an exclamation mark
. I will try to give a comprehensive answer to this question and explain why this happens and what kind of damage may be involved in this. Go!

Let me start, perhaps, with the fact that if a lamp (!) lights up on the panel, it means something is wrong with the brake system. As a rule, this indicator signals a low level of brake fluid (BF) in the system. As you can imagine, faulty brakes are no joke and the problem needs to be addressed. I’ll say more, if anyone doesn’t know, OPERATING A CAR WITH A BURNING INDICATOR (!) IS PROHIBITED! Since you don’t know what’s wrong and what caused this error to appear on the dashboard.

Messages 18

1 Topic by 4istoff 2016-01-28 07:37:04

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• Car: VAZ 2111

Topic: Resolved: Starter won't turn over, exclamation mark just lights up on dashboard

Hi all! When I try to start the car, an exclamation mark on the dashboard lights up (!) and the starter does not turn (((it starts fine from the pushrod. What is the problem? Thank you.

2 Reply from Slag 2016-01-28 08:03:56 (2016-01-28 08:09:29 edited by Slag)

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• Car: 2111 1.5 16kl. 2002

Re: Resolved: The starter does not turn, an exclamation mark just lights up on the panel

Try turning the starter by closing the contacts on it with a screwdriver. [video] Measure the voltage on the battery, maybe it's dead...

3 Reply from 4istoff 2016-01-28 08:26:47

• 4istoff
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• Car: VAZ 2111

Re: Resolved: The starter does not turn, an exclamation mark just lights up on the panel

The battery is fine, I'll try to close it now. The immobilizer cannot be modified?

4 Reply from Slag 2016-01-28 10:20:40 (2016-01-28 10:22:37 edited by Slag)

• Slag
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• Registration: 2014-04-23
• Messages: 146 Thanks : 43
• Car: 2111 1.5 16kl. 2002

Re: Resolved: The starter does not turn, an exclamation mark just lights up on the panel

With the immobilizer active (mine is activated), the starter turns, but does not engage the engine, since there is no connection with the ECU. So it's not about him. If it starts with a screwdriver, I think it’s worth digging towards the ignition switch and the wiring from it..

The exclamation mark is on: why, what to do?

Many car owners experience situations when an exclamation mark lights up on the instrument panel. On different car models it can be of different shapes and colors - yellow, red, white, in a square, in a circle, in a triangle. But in any case, it means that the car needs to be checked.

It must be said that such a check does not always require a visit to a car service center. In most cases, you can understand why the exclamation mark is on and what is happening to the car on your own.

From this article you will learn:

If two icons are lit, “exclamation mark” and ABS

This often happens when two icons light up on the instrument panel at once, for example, an “exclamation mark” and an ABS icon (or a stabilization system icon in the form of a “car on a crooked path”).

Since the car’s braking system is often very closely connected with the ABS system (Anti-lock Braking System) and the motion stabilization system, if a malfunction occurs in one of these systems, the second may also stop working and/or be forced to turn off on-board computer. Therefore, if two icons appear on the instrument panel at once, you will have to look for a fault in two systems at once.

What to do if the lamp comes on?

• The first thing you need to do is check the fuel fluid level. This is done simply and without any difficulties. Open the hood and look at the level, it should be between o and “MAX”. The level must be monitored constantly; for those who forget to do this, there is an exclamation mark. It lights up based on a signal from the sensor, which signals when the fuel level is below the permissible level.

By the way! There are often cases when the light comes on when driving over uneven surfaces and goes out as soon as the car drives onto a more or less level road. This happens precisely for the reason that the level of “brake fluid” is close to o and when the car is rocking, the sensor records the low level and signals this to the panel

2.1. Turn on the ignition and make sure that the exclamation mark lamp comes on, that is, the indicator of insufficient fuel level. It should light up and go out if the level is normal and the sensor is working.

2.2. We turn off the power from the sensor and look at the lamp; if it goes out, most likely there is a problem with the sensor. Check the sensor, sometimes the problem is that the float fails and sinks to the bottom even though the fuel fluid level is fine.

2.3. If, after disconnecting power from the sensor, the exclamation mark

the dashboard light

Most likely the problem is in the wiring, but the sensor itself is working. Perhaps the reason is a short circuit in the wiring, or something else, but one way or another the problem will be associated with a faulty wiring and a violation of its integrity.

If everything is fine with your fuel oil level sensor, but you want to check its operation, this is done quite simply

2.4. We press the rubber seal on the tank lid, so you lower the sensor float to the bottom, and in working sensors an exclamation mark on the panel lights up.

2.5. If the indicator does not light up, take a small piece of copper wire and turn off the power from the brake fluid level sensor. The prepared wire must be used to close the power contacts of the sensor, that is, the contacts on the wiring that is supplied to the sensor, and not the contacts of the sensor itself. With such a short circuit, a corresponding signal about low brake fluid level should appear on the panel. If this does not happen, most likely the sensor is working, and the problem is faulty wiring.

READ Installing Carburetor VAZ On Luaz

If the brake fluid level sensor is faulty, replace it; if the problem is in the float of this sensor, you can try to repair it; if the wiring is faulty, replace it or seek help from an experienced auto electrician.

In this case, you need to check the light bulb itself (burnt out), or the handbrake lever

We need to figure out what we are talking about. It seems like we are talking about different things: 1) The “low brake” light has nothing to do with the position of the handbrake. Many car enthusiasts are faced with this seemingly simple question.

1 — Coolant temperature, in degrees Celsius. 8 - Indicator lamp for turning on the dimensions. 13 - Hazard warning lamp - “hazard light”. 14 - Check Engine, often indicated by this icon - this means a malfunction in the engine, it is recommended to stop the engine.

This sign indicates insufficient brake fluid level. The ignition switch assembly looks like the key has three positions: 1) All electrics are on, 2) that is, only turned off, and 3) turning on the starter. If the handbrake is tightened, the light ((P)) is on, generally an exclamation point

the sign is the brake fluid or brake pad wear sensor, some do not turn it off.

A ringing voice flies into the distance

VAZ 2112 2001, please explain how the low brake fluid level lamp (exclamation mark on the instrument panel) is connected to the starter and ignition switch.
I cleaned all the wires and contacts, it didn’t help, I can start it with a screwdriver... What nonsense, red yellow, handbrake, sorcerer asks to go somewhere, this is a VAZ 2110. This icon means that the brake fluid level is low or there is something wrong with the sensor itself. The symbols on the instrument panels on all VAZs are almost the same, just the location is different.

There were similar things - it came on when braking, went out periodically... in short, it didn’t stay on all the time. Rashit is right! This is what I do on mine - the low brake warning light starts to turn on periodically - I change the pads. The liquid rises to the maximum level.

It also happens that brake hoses “swell” due to age, and the volume of brake fluid “leakage” also moves further away from the normal level. Before starting the engine, it lights up constantly to check the health of the light bulb, if I'm not mistaken. A friend’s Check Engine light was on on a VAZ 2112 1.6 16 valve. it was on and off.

The lock is in two positions only? jammed? Maybe there is air left and when you press the brakes the level goes away. 2110 (or rather, maybe he only knows the VAZ 2110, but very poorly). If it refuses to light up when you crank the starter and the handbrake is raised, then this is a jamb. If this is the case, then most likely the problem is in the “crooked” installation of the alarm with auto-start.

Warning symbols on the visor

Now we suggest you familiarize yourself with the warning indicators on the tidy. Let's consider only the most common symbols (video published by Kirill Mukhin).

Description of the buttons on the panel

The situation is similar with the control keys for devices and machine components. Even an experienced driver can get lost here. The photo above shows the elements and switches installed in common versions.

Exclamation mark on the VAZ instrument panel

What to do if the lamp comes on?

• The first thing you need to do is check the fuel fluid level. This is done simply and without any difficulties. Open the hood and look at the level, it should be between o and “MAX”. The level must be monitored constantly; for those who forget to do this, there is an exclamation mark. It lights up based on a signal from the sensor, which signals when the fuel level is below the permissible level.

By the way! There are often cases when the light comes on when driving over uneven surfaces and goes out as soon as the car drives onto a more or less level road. This happens precisely for the reason that the level of “brake fluid” is close to o and when the car is rocking, the sensor records the low level and signals this to the panel

2.1. Turn on the ignition and make sure the exclamation

a sign, that is, an indicator of insufficient fuel fluid level. It should light up and go out if the level is normal and the sensor is working.

Why is the red light blinking? Malfunction of the VAZ 2109 brake fluid level sensor.

2.2. We turn off the power from the sensor and look at the lamp; if it goes out, most likely there is a problem with the sensor. Check the sensor, sometimes the problem is that the float fails and sinks to the bottom even though the fuel fluid level is fine.

2.3. If, after disconnecting power from the sensor, the exclamation mark

the dashboard light

Most likely the problem is in the wiring, but the sensor itself is working. Perhaps the reason is a short circuit in the wiring, or something else, but one way or another the problem will be associated with a faulty wiring and a violation of its integrity.

The brake fluid is gone, the exclamation mark light comes on, what to do, reasons

If everything is fine with your fuel oil level sensor, but you want to check its operation, this is done quite simply

2.4. We press the rubber seal on the tank lid, so you lower the sensor float to the bottom, and in working sensors an exclamation mark on the panel lights up.

2.5. If the indicator does not light up, take a small piece of copper wire and turn off the power from the brake fluid level sensor. The prepared wire must be used to close the power contacts of the sensor, that is, the contacts on the wiring that is supplied to the sensor, and not the contacts of the sensor itself. With such a short circuit, a corresponding signal about low brake fluid level should appear on the panel. If this does not happen, most likely the sensor is working, and the problem is faulty wiring.

If the brake fluid level sensor is faulty, replace it; if the problem is in the float of this sensor, you can try to repair it; if the wiring is faulty, replace it or seek help from an experienced auto electrician.

Master brake cylinder

Traces of brake fluid are clearly visible on the body.

When inspecting the brake master cylinder, inspect its external condition for visible leaks.

READ Replacing Silent Blocks of Gazelle Rear Springs

The main place where a rupture can occur is the rubber seal located closest to the vacuum booster.

Location of the vacuum brake booster and master cylinder

If a leak occurs, brake fluid will drip onto the gearbox housing and then onto the CV joint on the left side. This is easy to notice, and only then proceed to replace it.

• If you find any of the above elements to be faulty, it must be replaced immediately. Since the operation of the car with such malfunctions is impossible.
• After the brake system element has been replaced, be sure to bleed the brakes, as air will accumulate in the system during the work.

What does it mean

This sign informs the driver that the brake fluid level is low. If it is detected on the panel, it is recommended to immediately stop and check the brake fluid level in the reservoir. It must be no lower than the MIN mark; otherwise, it is recommended to top up the fuel fluid and check the brake line for fluid leaks.

TJ has good flow and is capable of leaking where water will not leak. Continuing to drive with leaking brake fluid is unsafe and PROHIBITED!

VAZ 2110 The exclamation mark has come on, the rear brake cylinders have been destroyed!!

During normal operation of all elements of the car, the indicator lamps light up when the ignition is turned on; as soon as the engine starts, all indicators should go out.

Master brake cylinder

Main cylinder with reservoir: 1 – main cylinder body; 2 – low pressure sealing ring; 3 – drive piston of the “left front-right rear brake” circuit; 4 – spacer ring; 5 – high pressure sealing ring; 6 – pressure spring of the sealing ring; 7 – spring plate; 8 – piston return spring; 9 – washer; 10 – locking screw; 11 – drive piston of the “right front-left rear brake” circuit; 12 – connecting sleeve; 13 – tank; 14 – brake fluid emergency level sensor; A - gap

• When inspecting the brake master cylinder, inspect its external condition for visible leaks.
• The main place where a rupture can occur is the rubber seal located closest to the vacuum booster.
• If a leak occurs, brake fluid will drip onto the gearbox housing and then onto the CV joint on the left side. This is easy to notice, and only then proceed to replace it.
• If you find any of the above elements to be faulty, it must be replaced immediately. Since the operation of the car with such malfunctions is impossible.
• After the brake system element has been replaced, be sure to bleed the brakes, as air will accumulate in the system during the work.

Please note that replacing brake fluid is also necessary because, over time, it accumulates water particles from the air and becomes less effective.

If you find an error, please select a piece of text and press Ctrl+Enter.

Why does the light with an exclamation mark on the VAZ 2110 light up?

VAZ (Lada) 2110 1995 - 2007

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!-indicates a low level of brake fluid in the reservoir. Check the level. Color and design are important in icons.

A warning signal to attract the driver's attention in the event of an emergency (drop in oil pressure, open door, etc.), usually accompanied by explanatory text information on the dashboard display or other indicator.

If there is such a badge (but your car is unlikely to have this system, they are in foreign cars)

Malfunction in the electronic stabilization system.

This light may indicate serious problems with the brake system, but the light will also remain on when you apply the parking brake.

Malfunction in the brake force distribution system.

If there is such an icon (you have a manual transmission, and of course there is no such icon)

Malfunctions or overheating of the automatic transmission or other transmission components.

There is also one with an exclamation mark (on your car model, it most likely does not exist).

The air pressure in one or more tires drops by more than 25% of the nominal value.

Dial indicators

First, let's look at the indicators with arrows; as we see on the dashboard, there are four of them. Indicator No. 1 shows the temperature of the coolant in the car engine. If the arrow is in the red sector, it is recommended to check the level of antifreeze or other elements of the cooling system (radiator, pump, thermostat). Indicator No. 2 is a tachometer and indicates the rotation speed of the crankshaft of the power unit. Do not rev the engine to maximum power when the needle goes into the red sector, this may negatively affect its durability. Indicator No. 5 – speedometer. Shows the actual speed of the car at which it is moving. Also in this scale there is an electronic display No. 12 - a mileage counter, where the top numbers are the total mileage, the bottom ones are the daily mileage. Well, the last dial indicator No. 6 shows the amount of fuel in the tank. It has a reserve indicator No. 7 with a picture of a gas station; it lights up when the gasoline runs out.

Why does the exclamation mark (!) light up on the instrument panel?

At the moment when the car brakes, the brake cylinders are pushed forward as much as possible, thereby acting on the pads. At this time, the cylinders are filled with the required amount of brake fluid in the system, and its level in the reservoir drops. It is for this reason that such an exclamation mark

a sign on the instrument panel informing the driver about the minimum level of brake fluid in the reservoir, and accordingly in the system as a whole.

Brake hoses

It is also very easy to determine the presence of ruptures or cracks in brake hoses, since this is all visible to the naked eye. Most often, they crack at bends or due to friction with adjacent elements of the car body.

Where might brake fluid leak?

It is very easy to find out whether the required level of brake fluid is in the system, since it can be seen visually through the brake fluid reservoir. Its level should always be closer to o, and if it is significantly less, or its level has dropped, then a leak is possible.

Brake cylinder

The front brake cylinder is leaking

First of all, inspect the brake cylinders on all wheels for leaks.

As a rule, leaks most often occur on the rear drums due to their excessive overheating. It is not difficult to notice a leak on the cylinders, since in the case of the front cylinder, the leaks will be noticeable on the caliper, and on the rear, it can drip directly from the drum. Problems with these elements usually arise during the cold season.

Reasons for appearance

When such an indication occurs, first of all we check the sensor itself. which is located in the brake fluid reservoir. It is a float that actively interacts with the brake fluid.

When the float is dismantled, it must be put away on a rag.

In order to check its serviceability, it is necessary, with the engine running, remove it from the tank body and manually change the position of the float. If the indication on the instrument panel does not disappear and does not react in any way depending on the influence on it, then the sensor is faulty and needs to be replaced.

However, if the sensor is working properly, there may be a brake fluid leak.

READ Alarm Connection Points Opel Vectra C

Reasons for the appearance of the icon

The most common cause of a car's brake system malfunction is a drop in brake fluid level. For this reason, on some cars the “exclamation mark” icon may “blink”, depending on driving conditions (the brake fluid splashes in the reservoir, causing its level to become lower or higher).

The fluid level may drop for several reasons, for example: due to a fluid leak, due to severe wear of the brake pads, or due to evaporation during long-term operation without replacement (fluid replacement according to the regulations must be done at least once every two of the year).

What to do if the icon appears

The first thing the driver needs to do when the “exclamation mark” icon appears is to postpone his trip (or stop if the icon appears while driving).

Then you need to try to understand why the icon appeared. To do this you need:

• Go to the “car status information” section of the on-board computer (if there is one) and find there the reason for the appearance of the icon;
• Check the brake fluid level in the reservoir under the hood and add fluid if necessary;
• Check the connector of the brake fluid level sensor (remove and clean), it happens that dirt gets under the connector casing or brake fluid fills it;
• Check the position of the handbrake and its limit switch, tighten and release the handbrake several times;
• Check the condition of the brake pads (if the wheels allow this); excessive wear on the pads may be the cause of a low brake fluid level;
• Check the operation of the brakes by pressing the pedal (if it is very soft or very tight, it is better not to drive the car again until the problem is eliminated);
• If you can’t independently determine the reason for the appearance of the “exclamation mark” icon, it is better to call a tow truck and take the car to a car service center, or try to find a good on-call diagnostician;
• If the nearest car service center is far away and there are no diagnostic specialists, you can try to read the errors yourself through the car’s diagnostic connector, via a special Bluetooth or Wi-fi adapter. For example, the ELM-327 adapter is very convenient and popular, which can be ordered with home delivery;

Fiat Albaa

For the presented car, a similar indicator may be caused by the following reasons:

• a headlight bulb or other lighting fixture has burned out;
• reduced lubricant pressure in the engine crankcase and brakes;
• failure of the rain, shock, critical proximity sensor.

Here, such a sign lights up when there is a brake malfunction, ABS failure or incorrect operation. Troubleshooting begins with computer diagnostics. After reading the error code, you need to check the level of liquids in the expansion tanks.

Priora

The standard Priora tidy has three different exclamation marks. To determine the malfunction and further actions, you initially need to determine what each of them means.

• The first pointer is located at the bottom of the tachometer. The symbol is usually in a circle and beeps when turned on. If the exclamation indicator lights up, the reasons are simple - this means that the brake fluid in the system is running out. To fix the problem, it is enough to replenish the tank capacity. It is also recommended to completely check the entire line. The machine does not consume fluid on its own - there is probably a leak somewhere.
• An exclamation mark flashes in a triangle or circle located at the top of the instrument panel. The indicator indicates that the brake force distributor device is disconnected or broken. The device causes the ABS device to turn off. In this case, it is not recommended to do anything yourself. The blocks are a complex structure that requires qualified repairs. It is necessary to understand that the car will drive without the help of electronic systems.
• If the exclamation
  mark located on the bottom of the steering wheel icon is lit, the problem is hidden in the electric power steering. Usually, if the lamp is on for a long time, the car will not start. If the indicator blinks, you need to show the car to a technician.

An exclamation mark lights up on the dashboard: what actions should car owners take?

Before you begin troubleshooting problems indicated by an exclamation mark that lights up on the instrument panel in a Priora, you should determine:

• where will it light up?
• what the icon will represent.

An icon can have multiple images:

1. If a red exclamation mark starts to burn at the bottom of the circle, this will indicate a problem with the brake system, namely the minimum level of brake fluid. This problem can be solved quite simply by adding brake fluid to a special reservoir to the required level. If after this the indicator light continues to light, then experts advise checking the serviceability of all components of the brake system.
2. If a red exclamation mark starts to light up in the triangle at the top of the circle on the Priora’s instrument panel, this will indicate a problem with the car’s brake force distributor. It is worth noting that the most modern models use not a circle, but a triangle. Only experienced specialists can fix this problem, so you need to visit a service station as soon as possible. And when driving, if you see that the light in the triangle has begun to light, you should be extremely careful.
3. If the red exclamation mark, located at the bottom of the steering wheel icon, stays on for a long time, this will indicate a malfunction in the EPS (electric power steering wheel).

It is worth noting that if the above systems are working properly, the icons on the instrument panel will light up when the ignition system is turned on, but after a couple of seconds they should go out.

If the car owner sees that the light comes on while the engine is running, then first of all you need to check the functionality of the car's brake force distributor.

Light indicators on the dashboard of the VAZ 2114

Icons on the instrument panel under No. 3 and No. 4 indicate that the left and right turn signals are on, respectively. Icon No. 8 tells the driver that the side lights and/or exterior lighting are on. If icon No. 9, with an exclamation mark on it, lights up, then there is a problem in the operation of the car’s braking system. In most cases, it may be a low brake fluid level; add fluid to the reservoir. Icon No. 10 on which a headlight is drawn indicates that the high beam headlights are on. Button No. 11 next to the liquid crystal display is used to reset the daily mileage and set the clock. Icon No. 13 lights up when the hazard warning lights are turned on. Indicator No. 14 “CHECK ENGINE" When the engine is running, informs the driver that there is a malfunction in the car’s engine. Liquid crystal display No. 15 – shows the current time and temperature outside the car. Indicator No. 16, which shows the battery, lights up when the ignition is turned on and goes out after the engine starts. If there is a problem with charging the battery. The generator does not work - it may light up or flash. Icon No. 17 P in a red circle indicates that the parking brake (handbrake) is engaged. Indicator No. 18, which shows a red tap, indicates insufficient oil pressure in the engine lubrication system. Low oil pressure can also result from low oil level. Indicator No. 19 indicates the position of the air damper if a carburetor engine is installed on the VAZ 2114.

What to do: Niva instructions

If you find such a problem, you need to act like this.

• Determine whether there are additional indicators on the dashboard.
• Study the car's instructions - inside the service manual there is the necessary information about combinations of symbols and their meaning.
• In the absence of secondary indicators, the amount of liquids in expansion tanks and crankcases is checked. The condition of sensors and auxiliary sensors is diagnosed.
• If the problem persists, you will need to connect diagnostic equipment to the car and read the errors.

Lexus

When ignited, the entire device turns on and goes out after 10 seconds. If the exclamation point

continues to burn

- this may indicate a malfunction of a certain system. Depending on the configuration, year of manufacture and model, a similar problem indicates the following:

• the water in the washer reservoir runs out;
• a breakdown was detected in the brake line (perhaps the sensor is malfunctioning);
• one or more tires are broken;
• The exchange rate stabilization system is disabled or does not work correctly.

If the indicator appears in conjunction with other symbols, the root of evil must be sought there, as indicated by the additional impulse.

The VAZ 2112 instrument panel does not work - reasons

If the panel suddenly stops working:

1. When the engine does not start and the dash does not work, inspect the ignition switch. Here the contact often burns out or oxidizes.
2. If the machine is working and the panel has failed, you will need to check the corresponding fuse, wiring and lines.
3. If the manipulations do not help, you will need to remove the device and test its circuits.

Panel backlight does not light up

There may be damage to the light activation key. It is recommended to check the corresponding fuse.

The panel is blinking

Consequence of deterioration of electrical wiring contacts. The user should inspect the supply wires for cracking or damaged insulation. The contact groups should be disconnected and cleaned of oxides and dirt. Treat the terminals with special oil.

Tidy 2112 stuck

This kind of problem is unexpected, but it occurs everywhere. As a repair, users are suggested to reset the electronic equipment. Remove the terminals from the battery and wait 15 minutes.

If you broke down on the way

In recent years, the production of Lada Kalina cars (ECU) of domestic production was replaced with Korean ones. The kind they put on Hyundai cars. After that, power steering failures became significantly less frequent. But they started installing Korean blocks on new cars. And how many thousands of Kalinas travel all over the roads, with old electronics? Our advice to you is, at the first opportunity, change the electronic control unit on your car to a modern one, you will be healthier.

Electric power steering for modern cars has already become an integral part of them. On the Russian market it was first installed on the Lada Kalina (VAZ 1118). The electric booster added both a lot of positive emotions and a lot of negative ones. Failure of this unit occurs quite often on the first samples. Our guest today was no exception – a car from the Lada “Kalina” family (Fig. 1).

The situation is quite typical: the client complains that the electric power steering sometimes turns off and the electric power steering warning light comes on

This situation is very annoying, because not only the owner uses the car, but also his wife. It is much more problematic for a woman to turn the steering wheel without electric power assistance.

We start the car, and the electric power steering fault light actually lights up and it becomes quite difficult to turn the steering wheel. It is imperative to deal with this problem.

We connect the diagnostic scanner and connect to the EMUR control unit.

On the monitor screen we see the following error: C1044 – incorrect sequence of the rotor position sensor. What is a rotor position sensor and where is it located?

Let's take a break from our malfunction for a moment and touch on a little theory. Let's understand the EMUR device and what main parts it consists of. Let's consider all its parts separately.

Design EMUR Kalina 11186-3450008-00

1. Steering shaft
2. Electric motor
3. Electronic control unit
4. Torque sensor
5. Rotor position sensor

We remove the EMUR. On the nameplate (Fig. 7) there is article number 11186-3450008-00 manufactured by Aviaagregat, Makhachkala.

Remove the steering wheel, steering column switches and ignition switch. To get to the torque sensor, you must first remove the electric motor. We unscrew the bracket with 4 bolts, the cardan shaft, the lock nut and the 3 bolts securing the electric motor.

This is what we got (Fig. 12)

New Lada: Spare parts catalog VAZ-2194 Kalina 2 - station wagon with prices

We take out the torque sensor winding (Fig. 17), having previously unsoldered the wires from the board (Fig. 16).

Design of an inductive torque sensor.

The inductive sensor consists of two concentric cylinders with holes (perforation slots), which are fixed to the shaft and rotate with it. And two concentric coils with primary and secondary windings, fixedly inserted into the EMUR housing. We will not go into various terminology, but let’s put it simply: an alternating current with a frequency of 20 kHz is supplied to the primary winding, and if we apply force to the shaft (that is, we begin to rotate the steering wheel), then a voltage “” or “-” appears on the secondary winding depending on the direction of rotation, and the magnitude of this voltage is directly proportional to the applied torque (force). Thus, the electronic control unit (ECU) determines with what force you rotate the steering wheel in one direction or another.

So, we’ve dealt with the torque sensor, let’s move on to the next one, namely the rotor position sensor (Fig. 20), which is located on the back cover of the electric motor.

The EMUR of the Lada "Kalina" uses a 3-phase switched inductor (brushless) motor. In order for it to start rotating in one direction or another, the electronics must understand what position the rotor is currently in and, after determining the position, apply voltage to certain stator windings at the right moments. To determine the position, a rotor position sensor (RPS) is used.

Diagram and design of an optical rotor position sensor.

3 optocouplers located at an angle of 120 degrees - LED (LED a,b,c) and photodiode (PD a,b,c), correspond to the location of the motor stator windings phases A, B, C. A disk is installed on the motor rotor, and when it rotates Photodiode a, b or c is triggered. In this way, the electronics determines the current position of the rotor.

Next, let’s look at the electronic control unit EMUR (Fig. 23), we won’t say anything special about it, we’ll just look at the photo of the board itself.

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Well, we have sorted out the EMUR device, let’s return to our malfunction, with which the owner of the Kalina car came to us. What needs to be done to make everything work as it should? A fairly common malfunction with this modification of the EMUR is poor soldering of the optocouplers on the rotor position sensor board. It is enough to simply solder all the contacts of the optocouplers (Fig. 24) to revive the EMUR, which we hastened to do.

After soldering the board, we assemble everything in the reverse order and start the car. Hurray. The EMUR fault light went out and the steering wheel began to rotate very easily.

We have a scanner to check parameters and read fault codes, but what should a simple motorist who does not have this equipment do? How to count errors without a special scanner? It's quite simple.

In order to read the self-diagnosis codes of the Kalina EUR you need to:

1) With the ignition off, short the 6th contact of connector X2 of the EMUR control unit to ground, or short-circuit contacts 6 and 7 (Fig. 26). There is no 6th pin in connector X2, so we installed a piece of white wire there and connected it to the 7th pin (ground).

Let's look at the EMUR circuit for a more detailed understanding.

Mazda

On modern Mazdas, the indicator lights up mainly due to brake failures. For generations 3, 5, 6 and CX 6, the following problems are relevant:

• pads sticking after winter inactivity or wear;
• malfunction of the brakes;
• loss of brake fluid;
• malfunction of the handbrake.

If the red indicator flashes simultaneously with other indicators, the problem should be looked for in the node for which the additional icon is responsible.

Also in these cars there is a service option. When you activate the extension on your car, you can quickly replace the brake pads and correct errors. In this case, during manipulations, the yellow exclamation indicator on the device will blink. After the service mode, the icon goes out.

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