Why the check light on Grant is on: the engine icon is on. How to reset the error.

The list of possible faults is long. So we've broken it down into three parts based on the original issues. These are the error codes that it produces:

Electronic control unit ( ECU );
automatic transmission ;
Problem with EEPROM .

Grant ECU: error codes

The largest group of faults . This includes data on internal combustion engine sensors. Code numbering from P0030 to P2501.

P0030-P0172

P0200-P0363

P0422-P0660

P0661-P1388

Р1389-Р1689

R2070-R2501

Complete list of Grant automatic transmission errors

The complete table of faults with the VAZ2190 automatic transmission is much smaller than the previous one. The whole list is below:

All automatic transmission error codes fit into one block

VAZ 2190 data transmission error codes

The smallest group of codes. There are only six of them, all starting with U - automatic transmission and internal combustion engine faults are indicated by the letter P.

All known data transfer errors on Grant

The check on Grant caught fire: possible reasons

So, you're on the road, and the engine icon lights up on the dashboard. On all cars this sign looks the same - it cannot be confused with anything else. How to understand what the reason is ?

There is an opinion: you can find out the error code if you enter the instrument panel into service mode . This is when the instrument needles jump in all directions, the display shows information about the car software version.

This is not true - you can find out the software. Error code - not always . You need an OBDII adapter like ELM327 with a display or Bluetooth connection to a phone with a program like Torque (free).

An OBD2 diagnostic adapter can be bought for pennies on Aliexpress. Whether he sees your car is a lottery, since this equipment is unprofessional.

System error

A software failure in the electronic control unit (ECU) can lead to any error being reflected, even if there is none in the engine. The error codes for which the ECU is responsible go from P0030 to P2501.

Errors related to automatic transmission : P0720 – P1701.

Data transmission problems : U0001 – U0305.

A malfunction in the electronic control unit will also appear on the instrument panel. Photo: Drive2 blog KurskCarTuning

Oxygen sensor

Granta divides errors into two oxygen sensors: before and after the converter. Problems with them from burning out.

Codes for the sensor before the neutralizer : P0030 – P0032 / P0130 – P0135.

After the neutralizer : P0036 – P0038 / P0136 – P0141 / P2270 – P2271.

Problems with sensor heating: P1102, P1115, P1135, P1141.

The oxygen sensor, also known as a lambda probe, is often removed when reflashing the car and replacing the exhaust with 4-2-1. If the sensor is on the car and fails, replacement will cost a lot of money.

UCH or CBCH error

What are UCH and CBKE? These are control units for all interior electronics on luxury versions of Lada.

Problems with TsBKE on Grant : turn signals do not work, window regulators take on a life of their own, etc. Replacing the unit is problematic; with labor and parts, expect about 4,000 rubles.

There is an option to transfer the electronics to a relay, as implemented on the Standard and Norma.

Replacing the TsBKE - removing the panel, or dismantling it through the removed instrument panel. Photo: ifoxli.ru

Problems with the mass air flow sensor

The mass air flow sensor (MAF) is installed under the hood immediately after the air filter.

The car runs rough or won't start;
The check is on;
Increased fuel consumption (up to one and a half times).

Mass air flow sensor errors : P0101, P0102, P0103.

Instead of replacing, you can try washing the sensor with a cleaning agent.

Crankshaft position sensor

DPKV - crankshaft position sensor - also has its own set of possible errors: P0335, P0336, P0337, P0338.

Diagnosing the sensor is important, but often problems with it are immediately obvious. If the DPKV fails, the car simply will not start or will operate extremely unstably.

DPKV on Grant costs a penny and is easy to change. The sensor is located in the engine compartment on the oil filter side near the drive disc.

More articles on repair Grants at this link.

How to reset an error on Grant

There are three ways to get rid of the “Check Engine” icon:

Fix the problem;
Reset using OBD2 adapter;
Reset without adapter manually.

We use OBD2 adapter

Do you have a high-quality diagnostic adapter and the necessary software on hand? Then resetting will not be difficult. What to do if there is no program or diagnostic scanner?

The easiest way out is to buy a scanner from China. Price – 200-300 rubles. The main condition: read reviews about compatibility. Whether he reads your car or not is a lottery.

Once you have the scanner, insert it into the OBD connector to the left of the glove compartment.

The connector is located in an easily accessible location to the left of the glove compartment lid.

Download Torque Lite program - free version, basic functions work;
We start the car so that power goes to the adapter and error data appears;
We turn on Bluetooth on the phone, add a new device (the adapter will be detected as OBDII);
Open the Torque program - at the top of the screen there will be messages like Waiting for connection, Checking the CAN protocol, Connected successfully;
Open the settings – Fault Codes – Show logged faults.

The saved codes will appear on the screen. There, using Clear logged faults, you can reset all errors and the “check” will go out. Not forever - until the problem appears again.

Open settings – Error codes – Show saved ones.

An option close to a scanner is installing an on-board computer . BC:

Determines the error;
Will show its code and decryption;
It will help you reset.

Battery disconnect method

Disconnecting the battery is an old way to reset the check engine light. Here are three steps to clear the check using this method: Step 1: Disconnect the cables from the battery. At this point, you should use a wrench to unscrew the positive and negative cables.

Step 2: Discharge the remaining electricity. The next thing you should do is press and hold the car horn for about 30 seconds. This action will help drain the car battery.

Step 3: Wait and reconnect the battery. After disconnecting the battery cables and draining the remaining electricity, all you have to do is wait about 15 minutes and then plug the battery back in. Error codes will be cleared. (Note: This method may not work on some vehicles.) If after this procedure the “check” lights up again, this may mean that the problem is still much more serious.

Summarization and decoding of all error codes

All error codes for Grant can be found here.

The check engine light will not come on by itself. There is an indication - there is a problem in the car.

Resetting does not cure the problem - the problem will not go away without intervention;
For an easy and quick reset, OBDII scanner - you can buy a simple one for 200 rubles;
You need to look at the error as soon as it appears - the problem can be either unimportant or critical for the use of the machine.

Write us comments and ask questions. We will answer everything we can!

Using the Scanner

Using a scan tool is the easiest way to reset your check engine light. Here are 5 simple steps:

We delete the error code. Press the “ERASE” button on the scanner. The Check Engine light will turn off when all error codes are cleared. Some scanning tools have many options, such as freeze frame, which captures the sensor readings. When deleting codes, these readings will also be deleted. Note: in some scanners, the option to clear codes may be automatic and the “CLEAR” or “YES” button instead of the “ERASE” button.
Be sure to turn the ignition on before clearing codes.

Possible reasons for the check function to light up

The “CHECK” signal is located in the very center of the instrument cluster, where the driver can quickly pay attention to it.

This function is responsible for the operation of the engine and if it signals, then there may be problems in the operation of this particular unit. Of course, this is scary for any motorist, because repairing the power unit is complex and expensive. But don’t immediately get scared and panic, the reason may be petty.

So, let’s look at what are the reasons why the “CHECK” function on the Lada Grant came on:

If the indicator lights up when you start the engine, then don’t worry, everything works.
If the “CHECK” lights up and signals for a long time, then, first of all, it is necessary to make a diagnosis, and only then worry.
If “CHECK” is heard while driving, this may mean that there is insufficient oil level in the engine ( p0523 - error when the oil pressure sensor is faulty ).
The “CHECK” function is on - it’s worth checking the engine for signs of depressurization or oil leakage.
If the above reasons do not work, but the “CHECK” is lit, then this may be a signal that the spark plug has failed or low-quality fuel has been filled.

When the “CHECK” function lights up, it indicates that something is wrong with the engine and it is worth carrying out diagnostics before taking other actions.

Elimination methods

Let's consider some options for eliminating the causes of the “CHECK” function fire on the Lada Grant:

Bad fuel. The elimination method is quite simple - drain the low-quality fuel and fill in new one. Let the engine run a little and turn it off. If everything is normal, then upon startup, the signal will disappear. AvtoVAZ recommends refueling with 95 gasoline, but it often causes errors and complaints about its quality. What kind of gasoline do you fill up with, 92 or 95?
Spark plugs and high-voltage wires. Unscrew all spark plugs and check the gaps and the presence of a spark. Replace faulty spark plugs and wires.

Engine 21116 (high-voltage wires, oil dipstick)

4 bolts securing the plastic fuel pump cover under the rear seat

The faults that you can fix yourself are indicated, but if nothing works, you should contact a car service.

Underwater rocks

If the “CHECK” light comes on on the Lada Grant, then do not panic. Often on cars the signal is supplied from a common ECU, which, like any computer, can malfunction. This may be caused by a short circuit or replacement of electrical circuit components. Therefore, errors occur in the electronic control unit, which can serve as a “CHECK” signal.

The ECU in Grant is not located very well, and if your check light came on during or after rain, then water could have gotten into it due to design features.

This problem can be treated quite simply. The ECU itself needs to be connected to a software laptop and errors in the system should be corrected or outdated firmware changed. It is best to entrust this operation to specialists who know how it is done.

Resetting an error without using an adapter (collective farm method)

If you are sure that the check engine light is “temporary”, that is, the quality of gasoline is poor, or the spark plug was faulty, which has already been replaced with a working one, then the check engine light can be reset manually without using an adapter; there are two ways.

To do this, disconnect the terminal for five minutes , the memory in the electronic engine control unit (ECU) will be reset, and the on-board computer readings will also be reset.
There is a second way, you just need to remove the cigarette lighter fuse ; Grant's design engineers installed an immobilizer on it.

Diagnostics

To decipher the error codes that appear, it is necessary to diagnose the vehicle. The machine can be checked in several ways. We will talk about them further.

Car Lada Granta sedan

Diagnostics with a scanner

To check using a scanner, you need to connect the on-board computer “State X1” to the tester or laptop using a diagnostic cable. The scanner or laptop must be equipped with software designed specifically for diagnostics. In our article we will look at an example with the KWP_D program.

In addition to this utility, you will also need to find a specialized OBD-II adapter. It is necessary in order to transfer information from the bookmaker to the laptop via USB output. The diagnostic connector is located next to the gearbox selector, under the cover. You need to connect a scanner to it.

The Check lamp indicates possible breakdowns of the battery

When the program is installed, when you connect, you will see that a COM output with a specific number has appeared in the system. This number will need to be reassigned to any of the four - 1-4. When this is done, the laptop needs to be connected to the bk, then start the ignition and turn on the software.

As you know, any car engine has its own characteristics that determine its operation. If these characteristics differ from the standard ones, it means that something is wrong with the engine. The first point to pay attention to is the DTC characteristic. If malfunctions are detected in the BC system, then open the “Error codes” tab and find the number along with the decoding. Please note: everything will be fine with your Lada Granta if the measured characteristics do not differ from the standard ones by more than 20%.

Diagnostics without a scanner

Checking a car without a scanner is not a difficult task at all. The disadvantage of such diagnostics is that it does not always allow you to identify all errors in the operation of the car:

On the instrument panel, press the button that resets the daily mileage. At the same time, turn the key and turn on the ignition, but do not start the engine. In this case, the instrument panel test mode starts, which will help determine whether all panel elements are functioning properly.
Then press the button on the windshield wiper lever. Thus, the firmware version of the bookmaker “State X1” will first appear on the screen, and then you will see combinations of possible faults, if any.

The Lada Granta check light came on, what to do: possible reasons

A modern car is crammed with electronics. Multiple gauges and warning lights on the instrument panel indicate different faults. This progress did not bypass the Lada Granta. The most well-known signal is the “CHECK” function lighting up. This is an indication that there are problems with the operation of the engine or control unit.

In the video, check engine reset:

conclusions

The reasons why the “CHECK” function lights up on the Lada Grant are quite simple, since this sensor is responsible for the full operation of the engine. To identify the causes, it is worth conducting a diagnosis and determining why this happened, and only then eliminating it.

If the Check engine indicator light comes on on the dashboard of your car (or simply the “check” is on), you should at least be wary. The reasons for this can be very diverse - from a loose gas tank cap to serious problems with the engine.

Possible reasons for the check function to light up

The “CHECK” signal is located in the very center of the instrument cluster, where the driver can quickly pay attention to it.

Check engine light came on during hard acceleration

So, let’s look at what are the reasons why the “CHECK” function on the Lada Grant came on:

If the indicator lights up when you start the engine, then don’t worry, everything works.
If the “CHECK” lights up and signals for a long time, then, first of all, it is necessary to make a diagnosis, and only then worry.
If there is a “CHECK” while driving, this may mean that there is insufficient oil level in the engine ( p0523 - error when the oil pressure sensor is faulty ).
The “CHECK” function is on - it’s worth checking the engine for signs of depressurization or oil leakage.
If the above reasons do not work, but the “CHECK” is lit, then this may be a signal that the spark plug has failed or low-quality fuel has been filled.

When the “CHECK” function lights up, it indicates that something is wrong with the engine and it is worth carrying out diagnostics before taking other actions.

Elimination methods

Let's consider some options for eliminating the causes of the “CHECK” function fire on the Lada Grant:

Bad fuel. The elimination method is quite simple - drain the low-quality fuel and fill in new one. Let the engine run a little and turn it off. If everything is normal, then upon startup, the signal will disappear. AvtoVAZ recommends refueling with 95 gasoline, but it often causes errors and complaints about its quality. What kind of gasoline do you fill up with, 92 or 95?
Spark plugs and high-voltage wires. Unscrew all spark plugs and check the gaps and the presence of a spark. Replace faulty spark plugs and wires.

Engine 21116 (high-voltage wires, oil dipstick)

4 bolts securing the plastic fuel pump cover under the rear seat

The faults that you can fix yourself are indicated, but if nothing works, you should contact a car service.

Underwater rocks

The ECU in Grant is not located very well, and if your check light came on during or after rain, then water could have gotten into it due to design features.

The ECU is located under the glove compartment

Resetting an error without using an adapter (collective farm method)

To do this, disconnect the terminal for five minutes , the memory in the electronic engine control unit (ECU) will be reset, and the on-board computer readings will also be reset.
There is a second way, you just need to remove the cigarette lighter fuse ; Grant's design engineers installed an immobilizer on it.

We recognize the problem ourselves

Checking your car at a car service center will cost some money, but you can diagnose the computer system yourself. Such diagnostics can determine not only problems in engine operation, but also identify other vehicle malfunctions.

Removing fake errors

With the ignition off, hold down the vehicle mileage reset button;
While holding the button, turn the key to the ignition on state, but do not start the car;
Five seconds after turning on the ignition, release the vehicle mileage reset button;

All error and warning signs will light up on the instrument panel, the speedometer and tachometer needles will begin to change indicators non-stop, going up and down. Such actions indicate readiness for testing and at the same time remove fake errors. If you are sure that there is no malfunction, but another failure has occurred, then at this stage, after the tachometer and speedometer needles have stopped moving, you can turn off the ignition and try to start the car. If the error panel is clean, then no action can be taken, but if the check light comes on , then we move on.

Diagnosis of existing errors

If there is still room for some errors in the operation of the car, then it is necessary, after performing the above actions, without turning off the ignition, take the following steps:

It is necessary to change the position of the control lever for the turn signals or wipers of the car, after which the computer will show the version of the on-board computer software indicated by the word “ver”.
After the program version appears, you need to change the position of the lever again and the on-board computer will begin diagnosing and identifying errors.
If errors exist, the on-board computer will display the number of these errors, indicated by numbers, letters or a combination of numbers and letters.
You can decipher these codes by calling the service center of any official VAZ dealer and telling them the error code.
You can also diagnose your car yourself using your mobile phone using the inexpensive elm327 bluetooth diagnostic adapter.

You can contact the service station with information about existing problems and not worry that they will charge you with non-existent ones. Diagnosing the engine yourself is much more convenient and practical; computer diagnostics in car services will show the same codes as your on-board computer.

Why the Lada Granta check engine light is on and what to do

All modern cars are filled with electronics, and, unfortunately, every part can sometimes fail.
Probably, many car owners know firsthand about the problem of a lit check engine light (check engine light sensor). Naturally, any deviation from the norm slightly alarms a person, and therefore this article will discuss the causes and ways to eliminate this problem. Typically, when the ignition is turned on, the engine warning light comes on. If there are no problems in the operation of the car, the light should go out within a few seconds after the engine is fully started. However, it also happens that the check engine light does not go out or lights up suddenly.

If the engine warning light sensor comes on, then for some cars this is a warning sign, and it is necessary to urgently find out the reasons for the appearance and take measures to eliminate them. This can be done by going to a car repair shop or diagnosing your car yourself and fixing the problem. However, it is better to do this if the driver understands technology and has experience in car repairs.

On the Lada Granta, the check engine light comes on when errors or malfunctions in the engine are detected.

Many modern cars have a complex mechanism, and the engine check can respond to engine speed, the composition of the working fluid, fuel consumption, and ignition. Therefore, it will not be possible to quickly name the cause of the failure, especially if you lack skills and experience.

In conclusion

If after the reset procedure these error codes reappear, it is recommended to contact a specialist for a more thorough diagnosis of the LADA Kalina on-board electronic complex. This will save not only the owner’s nerves, but also provide a qualified approach to troubleshooting, without aggravating the situation with “independent actions”.

Probably every VAZ owner has encountered such a problem when, out of the blue, the “chek” error comes on. Here many people immediately panic. Don't worry, there's nothing wrong with it. Firstly, this error appears when any sensor fails (here you will have to suffer and determine which one), but all this is determined by changes in the behavior of the car: dynamics, consumption, etc. Secondly, this error appears when the wrong mixture enters the combustion chamber. This can happen in two cases: some sensor is not working correctly, or low-quality gasoline. Try using higher quality fuel the next time you fill up.

However, even if you correct the problem, the “check” will continue to light up. Many people go to computer diagnostics to clear an error, where they pay about 150-200 rubles per minute. Although it’s not a lot of money, why? If you can reset the error yourself, spending the same minute on it, and you don’t have to go anywhere. Don’t know how to reset the check error yourself? Very simple, read below.

We reset the error.

To do this, turn on the ignition without starting the car.
Open the hood and remove the positive terminal of the battery.
We wait from 10 seconds to a minute and seat the terminal back.
Close the hood.
Turn off the ignition.
Turn on the ignition and start.

And then a miracle, the error light stopped lighting.

Even if you cannot decide why your check light came on, do not immediately run to diagnostics. Try to reset this error using the method described above. There are simply cases of accidental operation (there was an impurity in gasoline and the like). And then after the reset the error simply will not appear again. And if, nevertheless, there is some kind of problem, then the “check” will pop up again, after 50 kilometers.

Common causes of check engine light on Lada Granta

As a rule, a glowing check on the screen can indicate both minor problems and various device errors. The most common reasons for an illuminated check engine light are:

low quality fuel. This is a fairly common reason why the check engine light comes on. To solve the problem, you need to drain the old gasoline and fill in new one. Then check the indicator panel, and if the check stops lighting, then this was the reason. If the check does not clear, this may indicate that there is another problem;
malfunction of the fuel pump or fuel filter. In this situation, in addition to the lighted check, there will be problems with starting the engine. Also, a clear symptom will be “floating speed” or “dips” when pressing the accelerator pedal;
clogged fuel injectors. A very common reason why the check engine light comes on. The problem is solved by cleaning the injectors, but this must be done only in a car repair shop, since a person without experience can only cause harm and completely disable them;
Air filter contamination. This problem can be solved in the same way as the previous one, by cleaning or replacing the filters;
ordinary glitches in the operation of electronics. It also happens that there are no significant problems in the car, but the check engine light comes on. In this case, the cause is likely to be short-term and minor malfunctions in the vehicle's electronics. The problem can be solved by removing the terminals from the battery;
catalyst clogging. The check engine light may also come on if the catalyst is clogged. The problem can be solved by replacing the exhaust system or cutting out the catalyst from it;
low oil level. If the check engine light comes on while driving, then it is necessary to determine the oil level. In this case, the motor will operate without unnecessary noise or knocking. It is also worth checking the engine housing for leaks;
faulty spark plugs or high-voltage wires. In the case when the engine is operating properly, the problem lies in the malfunction of the spark plugs. The situation can be corrected by replacing faulty spark plugs and high-voltage wires with new ones;
problems with the module or coil. If the engine check triples, then the reason for this may be low resistance on the coil. Therefore, it is necessary to measure the resistance on the coil and check for the presence of a spark, then replace it if necessary;
malfunctions of sensors or their circuits;
malfunction in the engine control system. It happens that the check light does not indicate the need for diagnostics or repairs. Therefore, sometimes in order to fix a problem it is necessary to simply check the functionality of some components of the car.

However, when troubleshooting problems it is often impossible to do without qualified help. Therefore, when such a situation arises, it is necessary to solve the problem as soon as possible in order to avoid more serious consequences.

What does the Check Engine Light mean?

Sometimes it can be a very minor problem - for example, a loose gas cap or a faulty catalyst. However, you should not ignore the indicator signals under any circumstances, as this can result in serious problems.

The Check indicator may light up for various reasons.

Sometimes the cause of the indicator light may be poor fuel quality. So don’t be surprised if, after refueling at an unfamiliar gas station, you see the Check Engine light flashing.

Typically the indicator is located on the car's dashboard under the engine speed indicator. It is indicated by a schematic engine or a rectangle with the inscription Check engine or simply Check. In some cases, instead of an inscription, a lightning symbol is depicted.

Is it possible to continue driving while the light is on?

The brake pads are worn out, it's time for the next maintenance, the speed is switched incorrectly, low-quality fuel is used, the on-board voltage has dropped - all this can cause the Check indicator to light up. First of all, you should check the motor. If the reason for the signal to turn on is due to engine malfunctions, it is dangerous to continue driving.

The problem is aggravated by the fact that it is impossible to independently determine the malfunction of a modern internal combustion engine by smell or color. You should contact professionals who will use a scanner to identify the malfunction, if, of course, there is one.

A burning Check light may indicate various breakdowns - it is better not to ignore it

Therefore, if after restarting the car the light does not go out, you can only drive it to the nearest car service center. There they will conduct a comprehensive diagnostic of the engine and its systems.

Operating a vehicle with the Check Engine icon illuminated leads to increased fuel consumption, unstable engine operation, and decreased traction characteristics of the vehicle. Moreover, in this case, the car owner may lose the guarantee for car repairs.