How to reset a grant check yourself

February 20, 2021 Lada.Online 34 385 3

Resetting and initializing the ECU (electronic engine control unit) is required for various reasons. For example, this procedure is performed after replacing the sensor with a working one or after flashing the controller. If the car is equipped with a multifunction steering wheel, then after resetting and initializing the ECU, the buttons on the steering wheel should also be taught.

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.

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Comments 80

Itelma M73 I would like to charge the battery, the car takes half an hour and it’s thrashing like that, I try not to turn it off once again the battery is discharged. Will my self-learning reset now? If I reset the ECU using the scanner, then the car is then held by the ass for a week and cannot accelerate normally

Guys, you are all so smart, I am simply proud of you. How did I live before without knowing all this? And I removed the terminals and put them back, almost ruining the car.

Everyone also likes to clear a check with a terminal))

I still don’t understand the need to teach after removing the terminal

It seems to me that removing the terminal does not affect anything, and this information is more intended for servicemen when flashing brains or replacing them. There are no facts confirming that the ECU memory is dependent on the power supply in the on-board network.

People, please tell me how to train the controller to misfire if the factory has programmed the knock sensor disabled?

The knock sensor is disabled at the factory - how is that?

This means the controller doesn’t see it at all. If you remove the chip from it, there is no error either.

Is it exactly like this from the factory? The rough road sensor was excluded, the phase sensor was excluded, but this is the first time I have heard about the knock sensor. I'd like to check the wiring. People tell all sorts of jokes about the sensor www.vaz.ee/forum/topic12745.html

There are no errors at all. The bortovik does not see this sensor either. It feels like it is not in the program.

Unfasten the sensor, measure the voltage on the sensor and on the wires to it. Maybe the voltage on the wires and the ECU is coming from somewhere. What kind of on-board vehicle is it?

On-board driver STATE. Misfire—.DD resistance—. All dashes.

Did you do misfire training? Although this is “remembered” by the crankshaft pulley, but still.

I fucked with him for a month. there he is. if you disconnect it, an error will appear and the VOS will be more than 15 and with it 8 somewhere. in any case, it works, the computer just doesn’t show voltage to it

I don’t know when removing the terminals, but when changing the ECU it is necessary to do so. I went through this myself. I changed the brains, I start it and it stays at 2000. I press the gas and it goes up to a maximum of 2500. I went online and found an excerpt from the instructions described by the author of the post. I performed this operation, the result was all good.

I don’t understand what the post is all about... you reset the terminal from the Akum, only the clock and the BC readings in the tidy are reset, the rest is all ok.

The ECU settings are also reset to factory settings...

and what happens next? Is it still possible to change these settings?

Here is the answer from AvtoVAZ:

The feedback system of JSC AVTOVAZ received a question from you:

11/18/08 “Hello, on many forums on the Internet I read about the so-called controller self-learning (CSUD). Those. supposedly it remembers (over 15 trips) the driving style of a particular driver and then controls the engine in accordance with the driver’s driving style. How can you comment on this? Does self-learning really exist in KSUD?

25.11.08 “Good afternoon! Self-learning, this is probably said loudly, it’s just that modern ECM systems have feedback with the help of which they adjust the operating parameters of the engine based on the temperature of the air entering the engine, the coolant temperature, the detonation properties of the fuel, the amount of oxygen in the exhaust gases, etc. all information about the current state of the system is stored in the volatile memory of the controller and is erased after de-energizing.” Consumer complaints department. Head Office. Alexander Nikolaevich

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.

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.

Resetting ECU Adaptations Using a Chevrolet Explorer

I have already described this process in the section on self-diagnosis of Chevrolet. But let's repeat here too.

What do we need for this:

Laptop
Diagnostic adapter
Diagnostic program, for example, Chevrolet Explorer

How to download, install and configure the program, as well as install the adapter drivers step by step and in detail, is described in the Chevrolet Diagnostics section

We connect the adapter to the diagnostic block and to the laptop

Launch the Chevrolet Explorer program and turn on the ignition.

We connect to the engine control unit, choosing from the list the one that is installed on your car

Attention! Adaptations are reset with the ignition ON and the engine STOP. In some cases, for vehicles equipped with an MR-140/HV-240 ECU, it is necessary to perform “Learn DPKV”. After clicking on the “Learn DPKV” button, instructions with the necessary actions will be displayed on the screen.

Go to “Service” – “Service Functions” – “Reset Adaptations”

Confirm the action

Result

That's the whole simple process that takes no more than a minute of time.

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.

Is it just a matter of mistakes?

Temporarily de-energizing a car is often touted as an action that revitalizes the engine's character. After all, everyone has noticed that after parking with the battery disconnected, the car moves noticeably faster, and the response to the gas pedal becomes noticeably sharper. On the forums, this phenomenon is explained as follows: the ECU adapts to the driver’s behavior, and after clearing the RAM (disconnecting the terminal), all information is cleared and the computer again has to adapt.

Meanwhile, tuning or, as it is commonly called, adaptation is vitally important for some cars. The point is that incorrect operation of the engine after connecting the terminals to the battery promises unstable idle speed. Moreover, the engine can stop for no reason even while moving when powerful energy consumers are turned on, such as climate control, etc.

The essence of adaptation for each car is individual. For example, in the case of modern LADAs, before the first start, it is necessary to pause for 30 seconds, while the key must be in the “ignition” position. And after warming up, it is necessary to perform at least six engine braking from 4,000 rpm to 1,000 rpm in second gear. It is repeatedly noted that this procedure must be performed for versions with an electronic gas pedal.

But, say, the Mitsubishi model range has a slightly different content of the training program. When the engine has cooled down, turn off all power consumers, activate the climate control and start the engine. After starting, the engine should idle for about 10 minutes.

Using the Scanner

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

Connect the scan tool to the OBD connector under the steering column. A laptop or tablet with the appropriate software is installed in the holder;
Then turn on the car’s ignition and turn on all the gadgets accordingly;
On your mobile device, in the appropriate section, press the “READ” button to view engine error codes. We write down the codes with a pen in the order in which they were received. This will be necessary for subsequent repairs.

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.

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:

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.

When to reset and when not to

Resetting the laptop battery charge controller is only needed in the following cases:

There is no point in doing this “just in case”. As they say: “If it works, let it work.” Unless your laptop’s battery is already “on the verge” and you risk virtually nothing; you can calibrate it once every 2-3 months.

Before you reset your controller, you need to check whether your battery needs it. And you can do this via the command line:

And open "nout". In this document, find the battery information section. If the Last Full Charge number is significantly less than the Estimated Capacity, the battery needs calibration.

If you plan to reset using a program, test it with it.

Allow the check engine light to go off on its own.

Wait until the “check” goes out on its own. The simplest method because you don't have to do anything. The computer system in most vehicles will automatically recheck for problems that may activate the error light. If it is a minor problem, it will automatically correct itself and the check will go off. However, if the check light is still on after three days, you need to apply the methods mentioned above to reset it.

If this continues to happen despite the following reset procedures, you should take your vehicle to your nearest auto repair shop and have it diagnosed by a professional mechanic. Professional diagnostics use more sophisticated tools and can identify precise problems.

REMEMBER: You can always contact our car service center, where your car will be happy to receive professional technical assistance. You can also make an appointment with us for a scheduled technical inspection! Please familiarize yourself with our car repair and diagnostic services.

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