Lada Granta ECU - pinout diagrams and self-repair methods

The ECU has become an integral part of a modern car. The domestic Lada Granta model is equipped with such a device, labeled as “M74 CAN”. The module allows you to automate most processes occurring in nodes and systems. The control function of the ECU is achieved due to the presence in the units of various types of sensors that send signals to the “brain center” of the car.

Over the long period of operation of the Lada Grant, an annoying drawback of the ECU was identified - its insufficient sealing and sometimes the ECU pinout is required. Penetration of moisture inside the unit casing provokes burnout of the microcircuit, which subsequently ends in the need to replace the device.

The ECU is located at the bottom of the front panel (under the glove compartment) opposite the front passenger seat and is hidden from view by layers of sound-insulating material and upholstery on the inner surface of the bottom. Now you know where the ECU is located, all that remains is to find out other details.

Grant timing belt

Lada Granta - ECU

Lada Granta is one of the few domestic cars that has an electronic control unit.

The practicality and rationality of such an innovation, namely the integration of the M74CAN ECU into the vehicle system, is noted by a number of positive factors, which, in turn, are noted by the owners of the Lada Grant.

It is also worth noting a noticeable drawback, which lies not in the device itself, but in poor sealing of the ECU. As a result of water entering the device, the microcircuit burns out, which leads to unstable engine operation, and the Lada Granta ECU requires replacement.

The only solution is to replace the ECU itself, which, in turn, is located opposite the front passenger seat, or rather under the glove compartment, layers of trim and sound insulation of the floor.

Most common mistakes

Below is a breakdown of the most common error codes encountered when diagnosing a Lada Granta.

New Lada: Which is better: Lada Granta Liftback or Sedan? Recommendations from the experts

What ECU is on the Grant? Operating principle

Lada Granta is a truly exclusive car from a domestic manufacturer. What exactly is exclusive? This car received an electronic control unit, namely Itelma 11186-1411020-22, which is not compatible with previous VAZ models.

The main difference is the integration of the CAN bus. In previous versions of cars, for example, Lada Kalina, a K-channel is installed to transmit data to the instrument cluster.

Based on the main difference between the Itelma 11186-1411020-22 ECU and the ECU of previous models, we can draw a conclusion regarding the installation of an ECU with a K-channel on the Lada Granta. As a result of such an experiment, both in practice and in theory, the car’s instruments will “fall asleep.”

What about the operating principle? This principle is based on an algorithm of a certain type, which, in turn, is formed on the basis of software previously added to the device. Granta ECU receives and processes information from almost all ECM sensors.

Data processing according to the conditions of the above algorithm makes it possible for the Grant 11186-1411020-22 ECU to control the following devices, namely:

• Electronic throttle;

• Idle speed regulator, etc.

To determine the type and version of the firmware, appropriate markings are applied to the ECU housing, which, in turn, is necessary when replacing the electronic engine control unit.

P O P U L A R N O E:

Sound signaling device for duplicating warning lamps in the vehicle dashboard with a two-tone signal.

The car's audible alarm is designed to duplicate with a two-tone signal all emergency and "turn" warning lamps of the car, as well as signaling when the on-board voltage exceeds 17V.

Alphanumeric marking of inductors and chokes

The data provided below will be useful to radio amateurs when repairing inexpensive radios and radios of Chinese and other models.

Using inexpensive and accessible chips NE555, LM3915 and 7805, you can make a simple engine speed tachometer for a car using 10 LEDs.

The LED tachometer can be used for a car with an on-board voltage of 12V or 24V.

Itelma ECU 11186-1411020-22: stock firmware or chip tuning?

The dilemma regarding the need to flash a manufacturer-installed or a new ECU installed by the car owner depends on many factors. Among the main points is the “thoughtfulness” of the car at the time of overtaking or moving in a dense stream of cars.

It is worth noting the optimized dynamic firmware for Lada Granta 1.6L, 8V with an M74 controller and an established E2 toxicity standard. What does the practical implementation of such firmware provide?

As a result of the manipulations carried out and the return of the controller to its rightful place, fuel supply and ignition were significantly optimized. The firmware provides for changing the throttle settings.

Carrying out modern chip tuning on a domestic Lada Granta car provides the opportunity to physically disable the 2nd DC and the catalyst. As a result of such firmware, the dynamic characteristics of the car significantly increase while maintaining a moderate driving style.

The stock firmware of the Lada Granta ECU is designed for ordinary daily use of the car, while the manufacturer's firmware version is included in the warranty package. Unauthorized changes to the firmware version will void the manufacturer's warranty.

At the moment, the end user is provided with commercial firmware for M74 controllers, namely:

• AY_I484GG30 – Lada Granta 1.6l, 8V with pre-installed M74 controller 11186-1411020-22;

• I484GI06-STR – Lada Granta 1.6L, 8V; controller – 11186-1411020-22 and Euro-2 standard;

• AY_484GP12 – with preinstalled M74 controller 11186-1411020-22 and E3/E2 standards.

Location of the Lada Granta ECU

We can talk for a long time about how important the correct operation of the electronic control unit (ECU) is. The functioning of the heart of your car depends on it: from increased fuel consumption to the fact that the car may stall as a result of incorrect operation of the controller.

I would like to immediately convey a special greeting to the designer of AvtoVAZ, who came up with this arrangement of this block. In my opinion, I can't think of a worse place. See for yourself.

The ECU is located under the glove compartment under the passenger's feet and hidden under the upholstery. The upholstery is attached to the body on the right with a self-tapping screw.

• If your interior heater (radiator) leaks, the antifreeze will go straight to the control unit, causing almost 100% failure. Even though the Lada Granta is initially equipped with a good quality imported Visteon radiator.
• As you correctly noted, water can get in from under the hood. The rubber plugs on the Lada Granta are not of very good quality, so when they dry out, water will flow onto the controller. To prevent this from happening, check the condition of the rubber plug.
• If the drainage hole (which is shown in the video below) becomes clogged, water may flow into the cabin.

In general, as you understand, the location of the ECU on the Grant is not the best! So we just need to face it.

Where is the ECU located?

In the cabin, the unit can be found under the panel. In models from AvtoVAZ it is located near the heater radiator. On business-level foreign cars, the ECU can be found under the rear seat. Some manufacturers try to install the controller in the trunk. Placing the ECU under the hood is not the best solution.

After all, the block is affected by rain, snow and other factors. Often in the engine compartment this device can be found near the battery or under the safety block. It’s not difficult to find – even an ordinary car owner without special skills can find it. You just need to disassemble the dashboard a little or find the unit under the hood. Externally, it is a box from which two wire harnesses extend. But you shouldn’t repair the ECU yourself without special knowledge. It is better to entrust this work to professionals.

How to find out which ECU is installed on the Lada Granta

Sometimes the Lada Granta model is identified with an exclusive car. Why is she given such status? It's simple. "Lada" has a unique control unit, which is called "Itelma 11186-1411020-22" and cannot be combined with previous modifications of "VAZ".

The primary difference of this module is the integrated “CAN bus”. Previously produced models used the “K-channel” to ensure the transmission of pulses. If you set out to experiment and replace the Itelma with a similar device with functionality in the K-channel, then in the end the devices on the panel will certainly “fall asleep”.

ECU Itelma

It is based on a special type of algorithm, the formation of which occurs on the basis of software pre-integrated into memory. This allows the module to process signals from all sensors present in the ECM in real time.

The process associated with processing streaming information allows the control unit to subsequently carry out corrective actions regarding the functioning of such systems:

2. ignition system coils;

3. throttle mechanism;

4. sensor-regulator of idle modes, etc.

To be able to identify the type of device in a LADA Granta car and the firmware version of its software, a special marking code is applied to the body, which allows for the correct selection of an analogue if there is a need for replacement, and in some cases pinout of the ECU is required.

Tuning the multimedia system

In addition to the ESUP, you can also reflash the multimedia system. After the procedure, new functions will become available to the car enthusiast, and the system itself will be more modern. After the procedure, you can install rear view cameras, you will be able to access the Internet, and the player will read new file formats. You can install navigation.

So, you can look for problems in the mechanical part of the car for a long time and not find them. Or you can simply reflash the electronic system, and a lot will be resolved by itself.

Lada Granta repair and operation department

(ECU, Lada Granta controller) is connected by electrical wires to all sensors of the system. The ECU receives information from the sensors, the unit performs calculations in accordance with the parameters and control algorithm stored in the memory of the programmable read-only memory (PROM), and controls the system actuators. The program version recorded in the PROM memory is indicated by the number assigned to this modification of the ECU (controller, computer).

The control unit detects a fault, identifies and stores its code, even if the fault is unstable and disappears (the fault does not appear constantly).

After repair, the fault code stored in the control unit's must be erased.

Lada Granta control unit (controller) supplies 5 and 12 V DC to various sensors and switches of the control system. Since the electrical resistance of the power circuits is high, the test lamp connected to the system terminals does not light up. To determine the supply voltage at the ECU terminals, use a voltmeter with high impedance (10 MΩ). The electronic unit is installed in the cabin at the feet of the front passenger.

How to remove the Lada Granta ECU step by step instructions

In order to remove the Lada Granta ECU, you will need to perform the following procedure:

1. De-energize the system by removing the terminals from the car battery
2. The ECU controller is located under the glove compartment under the passenger's feet and hidden under the upholstery. The upholstery is attached to the body on the right with a self-tapping screw. We unscrew this screw.
3. Next, we move the sheathing away from the floor with our hands as shown in the figure.
4. Now we bend the soundproofing material to the side
5. After unscrewing the nuts, we move the ECU away from the body.

6. Now we squeeze the clamp of the wire harness fastening bracket and fold back the bracket.
7. We disconnect the connector from the block and similarly disconnect the second harness with wires, after which we remove the ECU from the car. Make the necessary repairs, then install in the reverse order.

Step-by-step instructions for removing the brains of a Lada Granta - video

Removing and installing the controller

We remove the controller if the computer malfunctions, when carrying out welding work on the car, before drying the car in a drying chamber after painting work.

Disconnect the negative terminal of the battery.

Using a Phillips screwdriver, unscrew the self-tapping screw securing the floor trim and the right side of the body

We move the upholstery aside and fold back the sound insulation covering the controller

Press the bracket of the wire block retainer and turn the bracket

Disconnect the block from the controller connector

We flash the Itelma M74 (Lada Granta) ECU with our own hands

The M7.4 ECU is very easy to program; the contacts to enable programming “B2 and A4” are placed in the first connector; it does not need to be disassembled. You can even change it without removing it from the manina via the OVD-2 connector, but before that you need to apply +12v to these two contacts “B2 and A4” and turn on the ignition.

In order to independently flash the Itelma M74 ECU, which, as we already know, is installed on the Lada Grant, you need to perform the following procedure:

1. Disconnect the battery mass.
2. Remove the ECU block. The connectors are disconnected like this:

3. Let’s make a “spider” like this (I recommend signing the wires)

4. We connect the connectors: Connector 1 (large) J1 - switchable voltage (K15) (12V) - second switch B2 - programming permission (12V) - first switch A4 - programming permission (12V) - first switch Connector 2 (Small) G2;G3; G4 - Ground (can be connected to any) H1; H2 - non-switchable voltage (K30) F2 - switchable voltage (K15) (12V) - second switch D2 - K-Line

5. here's EL. diagram (many people write that they are flashing, but there is no diagram anywhere)

Re-flashing process

The M 74 CAN module in the Lada Granta is located in front, opposite the passenger seat. To flash the firmware it must be removed. First, you should bend the trim and sound insulation of the interior and unscrew the 3 bolts. Now you need to disconnect the wires. This can be done by squeezing the clamp of the bracket; the connector will easily come out of its place. Of course, this work should be done with the negative terminal disconnected. The ECU has been removed, you can proceed to programming it.

In addition to the available adapter, program with an additional module and firmware, you will need a 12 V power supply, or even better, a battery. Next comes the most important part of the work. You need to connect the connectors of the adapter and the ECU with wires. You will need any 2 switches. With their help, + 12 V will be supplied to the required contacts when necessary. The connection is made in the following order:

• connector 1 (large);
• J1 - switch 1, switchable voltage (K15);
• B2 - switch 2, programming permission (12V);
• A4 - switch 2, programming permission (12V);
• E2 -CAN-L;
• E3 -CAN-H;
• K1 - 510 Ohm jumper on E3;
• connector 2 (small);
• G2;G3;G4 — mass;
• H1;H2 - non-switchable voltage (K30);
• F2 - switchable voltage (K15);
• D2 - K-Line.

The letters and number on the left side of this column are contacts on the ECU connectors. In brackets are the adapter contacts. Once everything is connected, check again carefully. If everything is fine, you can proceed to uploading the firmware. Turn on the program. Make the necessary settings. After this, press switch 2 and start the reading program.

This is necessary in order to save the factory firmware just in case. As soon as the process is finished, click “Record”, select the firmware and upload it. The process lasts 5-8 minutes, after which a message about successful loading is displayed.

https://youtube.com/watch?v=gJfpAd-R7js

ECU of the Lada Granta car - software guarding safety

The control unit, or controller, is a kind of “brain center” of any car equipped with various electronics. It receives signals from sensors that are equipped with all important parts of the car, from the fuel system to the wheels. Data processing then occurs to allow the ECU to effectively control the engine and ensure safe operation. It is in controller malfunctions that the greatest danger for the driver lies, because an error in quantitative indicators, a malfunction in the fuel supply system, or even a violation of climate control can lead to a threat to life and health.

Main controlled parameters.

To ensure the functioning of vehicle components and assemblies, the control unit collects and processes signals from the following sensors:

• Temperatures - engine, fluid in the cooling system, environment;
• Air flow and fuel supply;
• Idle mode;
• Vehicle position on the lane, anti-wear, ABS and other safety systems;
• Speed, engine speed, position of the crankshaft and camshafts;
• Throttle valve tilt and gas pedal position;
• Fluid pressure in the brake system;
• Interior climate and air conditioning sensors;
• Power steering or electric power steering;
• Voltage in the vehicle's on-board network.

The set of signals processed depends on the model and modification of the car (for example, for SUVs with air suspension, monitoring of its condition is required). In the most prestigious brands and configurations, the number of interrogated sensors is several dozen.

Devices controlled by the ECU:

• throttle valve and air supply system elements (for example, turbochargers);
• fuel supply system devices (injectors, nozzles, when fuel injection is carried out under electronic control);
• valve timing control system;
• electronic distributors of the ignition system;
• cooling system fan;
• solenoids and valves for gear shifting in automatic and robotic transmissions;
• differential locking clutches;
• stove, air conditioner and other climate control devices;
• head light, interior lighting;
• window regulators;
• elements of electrical equipment of a car.

Like the number of sensors, the set of controlled actuators depends on the make, model, configuration, and options of the vehicle. In business or premium class cars, the number of control commands can exceed the set typical for budget cars by an order of magnitude.

Example of a device diagram:

What kind of computers are installed on the grant?

Less than a week has passed since I picked up the “working” Grant from the service.

. and the car broke down again, completely. Those. turned into "real estate".

After the penultimate repair, when the speed sensor on the manual transmission was replaced, Grant began to glitch a little - turning off while driving. Moreover, from my point of view, this is “a little”, because in more than 3 years of driving VAZs I had the opportunity to be in a wide variety of situations. And here. Well, the engine turned off on the highway at a speed of about 100, well, I turned the key to “off”, squeezed the clutch, turned the key to “on”, released the clutch, the engine started, and we drove on.

Do you think it was worth sounding the alarm and going to the service station? No, friends, this idea made no sense, because without reproducing the problem, nothing can be fixed. And it’s simply unrealistic to recreate a breakdown with a guarantee, because the car stalled only after a couple of tens of kilometers of driving along the highway and not every day. Moreover, Granta literally “yesterday” returned from the service station with the verdict “everything is fine, keep riding.” Well, I rode around expecting that it would either “go away on its own” or “break completely.” The check engine, by the way, only came on once, but then immediately went out.

Diagnostics of the ECU ECM Lada Granta

As it turned out, Granta is now diagnosed exclusively via the CAN bus. The controller in this car is M74 CAN. The OBD connector doesn't even have pin 7 to connect K-Line. Accordingly, Grant will not be able to diagnose the K-Line adapter and programs for it. The ELM adapter can work with the CAN bus. Fortunately, in the garage, in addition to K-Line, there is also ELM 327 and there is a certain number of programs for both K-line and ELM. But there is also an ambush with ELM - the OpenDiag Free program works with the ELM adapter, but only via K-Line, with the CAN bus it works only in the commercial version, the price tag for the version is 4,500 rubles. Considering that ECU diagnostics cost an average of 500 rubles in the city, I somehow didn’t dare to shell out that much money for a commercial program yet, especially since the on-board computer was installed with “additions.” I’ve actually never used it for diagnostics, but apparently I’ll have to master it. The ScanMaster program can also work with the ELM adapter and CAN bus. The program is muddy - there are many places on the Internet lying around in the public domain, both with cracks and cracks. I seem to have found the latest version - 2.1 ELM. Started using it.

Computer diagnostics

The next method involves connecting special equipment to the machine. The bottom line is this:

• there is a special connector under the dashboard;
• a laptop with the program is connected to the terminal via a special connector;
• device pairing begins;
• After establishing a stable connection and reading information from the BC, Lada Granta error codes will be displayed in the software window.

If everything is done correctly, special codes are displayed on the monitor. Moreover, each part of the code speaks of its own circuit.

• P – the integrity of the electrical wiring is compromised or the sensors are damaged;
• C – probably the breakdown is in the suspension units, chassis;
• B – problems with the internal equipment of the car;
• U – resynchronization of several interconnected circuits is observed.

https://www.youtube.com/watch?v=uHtXPD3hENI

The following are standard notations:

• 0 – failure in the OBD 2 module;
• 1/2 – enterprise code (what this is is known only to the car manufacturer);
• 3 – malfunction of spare wiring parts.

The next part indicates the serial number of the on-board circuit section where the breakdown is located:

• 0 – exhaust cleaning device;
• 1 – motor air supply system;
• 2 – fuel lines, pumps and injectors;
• 4 – control devices;
• 5 – malfunctions or disruption in the operation of additional systems;
• 7/8 – transmission, chassis.

Next comes another two-digit number - the last part of the index points directly to the system where there is a problem.

Diagnostics of Lada Granta using ScanMaster.

ScanMaster ELM 2.1 sees the adapter, but refuses to see the controller.

ScanMaster started working and I saw the controller. In the program settings you need to select “USB (FTDI driver)”, provided that the adapter is connected via USB. If the adapter is Bluetooth, select the appropriate settings. The program is also interesting. I haven’t figured it out deeply yet, but it sees the VIN, but doesn’t write what the controller is. Why do I need a VIN number? But the model and serial number of the controller would not be out of place. He also doesn’t see the serial number of the controller - he writes some incomprehensible icons. Fun, but stressful.

I haven’t found any other programs for ELM and CAN for Grants yet.

I also tinkered with ScanMaster - the program is only suitable for viewing errors and erasing them. There are only 14 basic parameters that it shows.

Why, one might ask, is the “Mileage with diagnostic lamp on” parameter needed? What useful information can be gleaned from this parameter and what necessary thoughts in car repair may arise based on this parameter? But, at the same time, this program does not even show the injection time, which, in my opinion, is a fairly necessary parameter, not to mention the parameters of the position of the clutch and brake pedal, on which the limit switches are located and give a signal to the controller. Of course, I understand that these limit switches have only two states - on and off, and this state can be checked with a regular tester. But this is no longer convenient. Maybe, of course, the scanmaster will identify the incorrect operation of these limit switches as an error - I don’t know. And these limit switches, judging by the reviews on the Internet, fall apart quite often. Yes, there is a “PID Configuration” tab in this program - there are a lot of necessary and interesting parameters there, but they are all not active. I haven’t found any information yet on how to activate them. By the way, I saw screenshots of other people’s scanmasters online – there are much more activated parameters there than I have. It's a mystery - I don't have a solution yet.

How to check mass with a multimeter

Disconnect the negative terminal of the battery

We take a multimeter and switch it to resistance measurement mode up to 200 Ohms. We check the resistance of the probes themselves by connecting them together

The resistance of the probes themselves is 2.1 Ohms.

Now we connect one probe to the engine. At least here

And the second probe is to the engine control unit, which, in turn, is screwed to the body

We look at the multimeter readings. So what do we see? But we usually see the same 2.1 Ohm

What happens - the mass resistance of the engine - the body has practically no resistance? Is everything perfect? Is the engine and body weight OK? What is the problem then? Is the starter defective or are otherworldly forces overcoming you?

The whole thing is much simpler. What is a mass chain in the understanding of an ordinary person? This is just a piece of wire that connects the engine to the body. Just a piece of wire! If we connect ohmmeter probes to the ends of this wire, then we will find out its resistance. It will be minimal - it’s just a piece of copper wire. Right? Right.

If we connect the voltmeter probes to the ends of this wire, we will see zero voltage. After all, where will the potential difference come from on a single piece of wire? Right? Right.

Now let's connect our voltmeter to this ground wire on the car. That is, as when measuring resistance, one probe is to the engine, and the second to the body. They are connected by this piece of wire. Right? Right.

We switch the multimeter to the mode for measuring constant voltage up to 2 Volts. We start the engine and look at the device display.

Oops. And we have tension!

How can this be - we are connected to the ends of one wire, and we have voltage.

So I showed off my artistic creativity and painted a picture of what was happening

These values ​​on the multimeter display are nothing more than the voltage drop on our ground wire! Even though it looks great and has minimal resistance, it still drops voltage. Moreover, the greater the consumer current in the circuit, the greater the voltage drop on this wire will be, which can reach several volts!

This is the situation. And the mass of the engine and body is not as good as it seemed at first, and problems from it are inevitable.

How to come out of such a situation as a winner?

First, it is necessary to periodically service this section of the chain.

Unscrew the mass on the body

Do the same with the mass on the engine.

But this doesn't always help. The fact is that this chain still has weak points - crimps.

Crimping lugs, crimping on battery terminal

All this oxidizes over time and cannot fully perform its function.

It is necessary to either re-crimp these connections, or it is better to change these wires sometimes.

Here is a video on the topic of engine mass - body

Well, ideally you can lay additional ground wires: Generator - body

We use the reserves of Lada Granta 2190 by flashing the ECU

The Lada Granta, which first rolled off the assembly line in 2011, instantly became the sales leader in its class.
An affordable price, an attractive set of options and a good selection of power plants – these are the advantages that domestic car enthusiasts appreciate. The option of choosing a transmission is very attractive - a five-speed manual transmission or a four-speed automatic from the Japanese company Jatco. Fuel is supplied through a single-pipe line under the control of an electronic engine control system (ECM), which processes signals coming from sensors. Unlike previous models, the Itelma 11186 module is used here. According to owner reviews, it has somewhat unfinished software that can only be corrected by chip tuning Grants

at the software level.

Reasons that require modification of the Lada Granta ECU

As mentioned above, VAZ equipped the new 2190 with an M74 controller 11186-1411020-12. The essence of its functioning is radically different from earlier models, i.e. other blocks and reprogramming methods do not work here. Data transmission is carried out via the CAN bus, which has a higher speed than the K-channel of previous versions.

A car with factory settings generally satisfies many drivers, but some still decide to update the ECM for several reasons:

• the engine does not maintain idle speed when the air conditioner is on;
• difficulty starting a cold engine;
• incorrect temperature conditions;
• engine stop;
• lacks dynamics;
• excess fuel consumption.

A VAZ 2190 with an automatic transmission at medium speeds experiences some difficulties in choosing the appropriate speed - the automatic transmission is constantly trying to switch to a lower gear. For an urban environment with little traffic, this solution is not critical, but on the highway or in heavy traffic it will be problematic to maneuver.

There are also numerous comments regarding the lack of smooth transitions and weak traction at the lowest revs. Experts agree that the factory workers did not finalize the parametric characteristics of the controller a little. From this we can conclude that any self-respecting driver should still make adjustments to the program.

What modes are optimized when chip tuning a Granta power plant?

The plant periodically makes some warranty adjustments at service stations, but not everyone uses this service, and those who undergo warranty maintenance do not always receive it. As a result, owners continue to operate obviously faulty cars, not suspecting that it is enough to correct the electronic algorithm. The point of changing the ECM software is to optimize the operation of the engine and transmission.

Lada Granta modes that require improvement:

• ignition timing;
• injection time value;
• exhaust emission control systems;
• algorithm for determining the octane number of fuel;
• automatic transmission operation.

If desired, the second oxygen sensor can be removed from the circuit to further remove the catalyst.

Decoding codes after diagnostics with a scanner

As stated above, if the measured characteristics do not differ from the standard ones by more than 20%, then everything is in order with the car. What are the standard parameters?

What to expect from the control module software settings

Tuning studios that respect their authority develop individual software designed to maximize the performance of a particular car. In the process of this work, they take a number of actions:

• diagnostics and error correction;
• creating a backup copy of factory settings;
• studying and adjusting characteristics;
• upgrading and testing new ECU firmware.

If the owner wants to return the standard settings, this is done literally before his eyes in a short time. However, usually those who have tried to drive a Grant with chip tuning at least once will never want a car with factory parameters. The answer is simple - the motorist receives:

• reduction in fuel consumption by 5%;
• higher speed characteristics;
• increase in power by 10%;
• smooth gear shifting on automatic transmission;
• increase in traction torque.

And all this, mind you, without any intervention in the mechanical part. This type of tuning is the most budget-friendly and is available to most owners.

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Features of the Scanmatic-2 scanning kit

The designated set can be easily found in the retail chain. It fits such a thing as the diagnostic connector on a Lada Granta car, but will require the use of a laptop. The Scanmatik-2 package initially includes a scanning program.

To diagnose it yourself, first of all we boot up the laptop and activate the required program. Using a “USB” format cable, we connect the computer with the vehicle’s diagnostic socket. In the dispatch menu of Windows devices, we find the appearance of a “fresh” “COM” port, which we “register” in the settings.

We insert a cord with an “OBD-2” connector into the diagnostic connector, which is connected with a “USB” cable using the adapter included in the delivery kit. We control the glow of the green lamp, which is equipped with the OBD diagnostic connector, which indicates the correct connection.

If identification is not carried out automatically, then it is possible to manually select the name of the modification (in our version, “VAZ”) from the versions present in the software registry. A menu will appear on the display allowing you to select the ECU. There are cases when the program fails to determine the brand of the on-board controller, for example, when the software was previously “reflashed”.

After communication has been established between the ECU and the diagnostic tool, a list containing diagnostic modes is displayed on the screen. We enter the working window and get the opportunity to view the list of parameters, as well as adjust their settings.

This point helps not only to find the fault, but also to improve the configuration of any system. To implement this action, you will need to enter the section called “Settings”. The “View” menu allows you to adjust the settings of the “Blutooth” function in case of using a wireless switching method.

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The user of a Lada Granta car can create a set of parameters, which can subsequently be extracted from a list of values ​​​​pre-present in the program. For example, using this method you can create a specific set that allows you to check the idle speed of the engine, and then save the data and use it an unlimited number of times in the future.

Upon completion of the diagnostic process, we return to the program menu for selecting the ECU and deactivate the ignition.