Granta LUX central body electronics unit (electrical package controller)

Lada Kalina comfort block

The most complete classification of CBKE.
There are 15 types of them. You can see which one is installed on which car. 1) 21900-3840080-20 Priora 2, Granta, Kalina 2 (in luxury trim levels), Datsun Ondo (Dream 1-2) 2) 21900-3840080-10 Priora 2, Granta, Kalina 2 (in standard trim levels) 3) 21900 -3840080-11 Priora 2 in the Standard configuration. Until 2022, they installed on Priora 2 in the standard configuration 4) 21900-3840080-21 Priora 2 in the Lux configuration early (2021-2021), did not install on the Norma, but will fit 5) 21900-3840080-15 Priora 2 in the Standard configuration, Kalina 2, Granta in the Comfort package 6) 21900-3840080-30 Datsun Mido in the Trust 1-3 package until 2022 7) 21900-3840080-40 Datsun Mido in the Dream 1, Dream 2 packages until 2020

21900-3840080-50 new block to replace 21900-3840080-10 (does not burn out) 9) 21900-3840080-60 new block to replace 21900-3840080-20 (does not burn out) 10) 8450100527 Grant from 2022 11) 84 50100534 Kalina 2 from 2022 12) 8450100535 Datsun Ondo from 2022 13) 8450100536 Datsun Mido from 2022 (Trust 1-3, dream 1-2) 14) 8450101126 Granta FL in the comfort and standard package 15) 8450101145 Granta FL in the package ations luxury

Now regarding the connectors. Many people burn out 2 TsBKE on Kalina, some even burn out the wiring. Previously, no one could find connectors for these blocks, so I did it!

After restyling, instead of fuses and numerous relays, the Lada Kalina is equipped with a central body electronics control unit (CBEC). The device is available in “Lux” and “Norma” trim levels.

The most common mistake

If error P0133 appears on the screen of the Lada Granta on-board computer, this indicates that the oxygen control sensor cannot transmit information about the state of the air-fuel mixture to the corresponding control unit at the moment.

This sensor is located directly in the exhaust pipe and does not come into contact with the catalytic converter at all. At the same time, the engine control unit is located behind the above sensor.

Is the comfort block on the luxury grant being treated or is it only for replacement?

01/14/16 11:37 Reply to the message Is the comfort block on the Grant Luxury being treated or only for replacement? by Wild Tourist

I may blurt out off-topic, what is wrong with it, either the relay is jammed - change it if it is done on the relay, which I am 99% sure. or the relay control is faulty. If you want, I’ll look behind the scenes, the main thing is that without this module the turn signals don’t light up)))

and if there is a diagram for connecting the wires, it will also not be superfluous. PM contacts.

01/14/16 11:59 Reply to the message Is the comfort block on the Grant Luxury being treated or only for replacement? by Wild Tourist

Only a pawn can become a queen. Hitler, why don’t you shoot the officials who steal from the treasury? Why, let them steal, - They brought me to power.

Only a pawn can become a queen. Hitler, why don’t you shoot the officials who steal from the treasury? Why, let them steal, - They brought me to power.

Corrected by user sdw (01/14/16 12:11)

01/14/16 13:01 Reply to message Re: Is the comfort unit on the Grant Luxury being treated or only for replacement? user Pavel Sergeevich

In response to: I may blurt out off-topic, what is wrong with it, either the relay is jammed - change it if it is done on the relay, which I am 99% sure. or the relay control is faulty. PM contacts.

If only it were that simple. In the luxury version of this car, there is no turn relay on the seat (in the steering column relay/fuse block, F5 is empty), as I understand from the Internet, it is “tied” to the comfort block (the link to which was given above).

PS: I didn’t get through to the number indicated in the personal message.

01/14/16 22:59 Reply to message Re: Is the comfort unit on the Grant Luxury being treated or only for replacement? by Wild Tourist

I don't regret anything, Donkey foundation, strong house

01/14/16 23:33 Reply to the message Is the comfort block on the Grant Luxury being treated or only for replacement? by Wild Tourist

In response to: Actually the question is on topic, a question for auto electronics engineers. Diagnosis: three yellow left turn signals are on (constantly) (both when the car is running and when the car is turned off), so far I solve the problem solely by removing the terminal and closing the car manually with the key. The dealer (the car is under warranty) does not have this unit in stock, they sing about the uncertain delivery times from AvtoVAZ, they are ready to solve the problem at their own expense, the issue is the price. You can do it in person or publicly.

01/15/16 00:32 Reply to message Re: Is the comfort unit on the Grant Luxury being treated or only for replacement? by Kosyan

In response to: Welcome!

01/15/16 12:12 Reply to message Re: Is the comfort unit on the Grant Luxury being treated or only for replacement? Counteract user

In response to: Welcome!

you started working on Russian cars.

this is what is being done.

01/15/16 13:00 Reply to message Re: Is the comfort unit on the Grant Luxury being treated or only for replacement? Counteract user

01/15/16 14:48 Reply to message Re: Is the comfort unit on the Grant Luxury being treated or only for replacement? Counteract user

In response to: Welcome!

you started working on Russian cars.

this is what is being done.

When will you start reading carefully?

Control units, chip keys, speedometers, wheel alignment and some mechanical stuff have never been in a bathhouse

Yesterday there were only two engine ones from the Zhuguli.

I don't regret anything, Donkey foundation, strong house

What does "Check Engine" mean?

First, a little theory. “Check engine” is translated from English as “check the engine.” From this we can conclude that if a light with this inscription starts to light up, it means that there are some problems with the car’s engine. This is signaled by the ECU (electronic control unit), which determines the quality of the fuel and its consumption, reads the engine speed, controls the ignition, etc. Therefore, for those who do not have at least minimal knowledge in this area, it will be impossible to determine the cause.

Note: if the “Check engine” goes out when you start the engine, then there are no problems with the engine and vice versa. If this is the second case with your car, then you should know that the lamp may be on due to a small problem, or perhaps due to a significant breakdown, which may well lead to a major repair.

We list the main reasons why the “Check Engine” light may come on:

Low quality fuel

If you have filled your car with low quality fuel, you will need to first drain all remaining fuel from the tank. Next, fill up with gasoline purchased at a trusted gas station, remove the terminal from the battery for a few minutes and try to start the engine again. If the “Check engine” is no longer on, it means you were lucky and escaped with little loss of life.

Spark plug

One of the most common reasons. A spark plug that is faulty will even look different from the rest - a cracked insulator, carbon deposits, too large a gap, etc. They will tell you that the spark plug needs to be changed. If this was the only problem, then immediately after installing the working spark plug it will disappear. Don't forget to check the ignition coil and spark.

"Check engine" started to light up when the car was moving

First of all, check the oil level. If everything is fine here, then you need to further look for the reason. Listen to how the car engine operates and see if you hear any extraneous noise. If they are present, then you should immediately turn off the engine and take it to a service station, calling a tow truck for this purpose.

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Residual oxygen sensor faulty

In this case, the problem of the “Check engine” lighting up can be solved simply by replacing the lambda probe. After installing the working sensor, the lamp signaling complications with the motor will most likely stop lighting.

Lada Granta control units and their problems

ECU – electronic control unit. It processes information about the state of the car and controls the operation of all systems. Data for processing comes from sensors that are installed in different components of the machine. The comfort of travel and the power of the car depend on how the unit’s software works. In fact, the ECU is the brain of the car.

At StoVesta you can have your car serviced and also purchase all the necessary spare parts and accessories.

What blocks are installed on the Lada Granta?

ECUs M74.5, M74 and M74M are installed on Lada Granta. Which unit is included in the car depends on the year of manufacture and engine type.

Until 2022, units M74 and M74.5 were installed.

The software for the M74 was developed by AvtoVAZ. There are 5 block options and more than 50 software. But there are no fundamental differences for the driver in these blocks and software.

The software for the M74.5 block was developed by NPP ITELMA. This unit is installed only on machines with engine 21127. The differences with the M74 are in appearance and connectors.

Starting from 2022, the Lada Granta began to be equipped with an M74M ECU. The software was developed by AvtoVAZ and this unit became a clone of the M86, which is installed on Lada Vesta, Khrey and Largus.

The software of all blocks is different and it is impossible to upload, for example, M74 or M74M software into the M74.5 block.

Any of the software options provided by the Lada Granta manufacturer does not make the car settings optimal. For example, the gas pedal does not always respond quickly to driver inputs. Or gears change for a long time and with jerks. You can improve the car's reaction speed, its power and smoothness with the help of chip tuning.

Weaknesses of Lada Granta control units

Firstly, the weak point of any Lada Granta control unit is its leakage and installation location. The ECU is located under the glove compartment, behind the upholstery.

With this arrangement, there is a high probability that liquid will enter the block. In what cases can this happen:

• Antifreeze will get into the ECU if the interior heater leaks.
• Water from under the hood if the rubber plug dries out.
• Water if the drain hole at the bottom of the windshield becomes clogged.

If liquid gets inside the unit, it will fail. In this case, the car simply will not start. And if this happens during a trip, then anything can happen. But the unit will definitely not work correctly, and the trip will turn into torture.

Secondly, the weak point of any Lada Granta unit is poor protection against theft. This is especially true for the M74M block. It is easy for a hijacker to find the block and either reprogram it or replace it with a pre-prepared one.

New Lada: How to replace the Lada Granta generator bracket

How to protect the ECU from liquid?

To avoid troubles with liquid getting inside the Lada Granta control unit, just do the following:

• Place the plug on the sealant that leads to the ECU from under the hood.
• Regularly clean the drainage holes located under the windshield.
• Move the control unit higher, closer to the passenger airbag. But we recommend doing this at our service center.

These actions are enough to protect the control unit from liquids.

How to protect the ECU from hacking

There are two directions of protection - mechanical and electronic.

In order to protect the ECU mechanically, it is enough to place it in a safe. The block remains in the same place, but access to it becomes much more difficult. An attacker will not be able to quickly replace the ECU or disable the standard alarm system. The safe will also seal the block from moisture, but such protection cannot be called reliable.

For electronic protection of the unit, we recommend chip tuning. This will not only prevent the ECU from being hacked electronically, but will also make the car more powerful and more comfortable to travel with.

Now the Lada Granta is a very popular car. And the more they buy it, the more they steal. Therefore, we advise you to take the safety of your car seriously and additionally protect it from theft.

Of course, a safe on an ECU will not provide 100% protection, but it will significantly increase the time it takes to bypass the anti-theft system. And for an attacker it is important to do everything quickly. Therefore, faced with such mechanical protection, the hijacker will most likely simply give up.

To further secure the car, you can install additional alarms and mechanical protection.

Solution

If such a problem happens to you, it is recommended to contact the Lada dealership. In this case, you should not count on warranty service, since in this case there is no fault of the plant.

The thing is that the resistance of the diodes is greater than that of standard lamps, which is why the electronics unit burns out. In this case, there is a reckless decision by AvtoVAZ designers, who abandoned fuses and installed an electronic unit from the Renault Trafic model in Vesta.

Vesta’s design uses this electronics unit.

To restore the operation of the electrics, it is necessary to replace the additional body electronics unit of the Lada Vesta.

Replacement instructions

First you need to remove the instrument panel on the center console, then remove the lower part of the dashboard trim under the steering wheel. Now you need to unscrew the fuse box and turn it so that it takes a horizontal position. You need to stick your hand into the freed space until it comes into contact with the shelf on which the TsBKE is installed.

By unscrewing the fixing bolt, you can pull up the control unit and, after disconnecting the two electrical connectors, carefully pull it out. After dismantling the device, it is repaired or replaced with a new one. Installation of the device is carried out strictly in reverse order.

The introduction of modern technologies in the field of control of electronic equipment of a car makes the driver’s work easier, frees him from unnecessary loads and reduces the likelihood of road accidents. Along with the positive aspects of the implementation of CBKE, there are also a number of disadvantages associated with the unreliability of some nodes.

The electrical package control unit (pictured below) Kalina Lux does not work. Or rather, it does not respond to my clicks. It is illuminated, when I press the buttons, click, I hear a single short sound in the area of ​​the speedometer/heater (you can hear it in the video below). This thing appeared in the morning, I walked away for an hour, everything worked.

https://www.youtube.com/watch?v=fiNLc65LEYs

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How to remove cbke? repair of faulty pulp and paper plant

So, CBKE (eng. BCM - Body Control Module) - the Central Unit of Body Electronics is located in the car interior, on the left, above the fuse box.

You can view the pinout of the TsBKE, a description of its functions and the diagnosis of its malfunctions by following the link - TsBKE - Purpose, Functions, Diagnostics (*.pdf format, size

To dismantle it, according to AVTOVAZ technological instructions, it is necessary to remove the instrument panel. Not the instrument panel, with gauges and indicators, but the entire panel! Something like this.

26.1MB). Information on removing the CBKE is on page 281.

On our own behalf, we can add that it is difficult to remove the TsBKE without removing the instrument panel. And installing it back in its place, securing it as it should be, is even more difficult, but possible. The Internet is full of instructions, everyone can make it up, just like we can in our own way.

We had to remove the body electronics unit because the left turn light was constantly on. All paths and electrical circuits led there. There was no turn relay in this Lada Granta.

Block number 21900-3840080-20.

From the inside, the TsBKE board looks like this. Next to the large gray connector, the “culprit” of the constantly lit direction indicators is the BTS-5242-2L microcircuit (power key).

You can get acquainted with the “datasheet” of this microcircuit by following the link: Datasheet BTS-5 242-2L (*.pdf format, size

In general, in terms of repairs, there are no tricks. Either we order and change the microcircuit, or we order and change the TsBKE.

Regarding replacing the block. According to the document “CBKE - Purpose, Functions, Diagnostics”, there is also a unit with number 21900-3840080-10, but it does not control the electric drives of the side mirrors, does not have auto lights, does not control the rear windows and does not control the trunk lighting.

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Our car service has been certified and received permission to install, repair and maintain WEBASTO heaters.

Purpose and characteristics of pulp and paper

The central unit of body electronics Kalina 2 controls:

• alarm system;
• windshield wipers;
• heated windshield and rear windows;
• heated side mirrors;
• lighting system;
• direction indicators;
• central locking;
• trunk opening drive;
• electric windows;
• heated front seats;
• electric side mirrors.

When the alarm is turned on, an automatic check occurs, accompanied by a short flashing of the direction indicators. In security mode, the immobilizer light on the instrument cluster blinks. The security mode is disarmed by pressing the remote control button.

The central electronic unit automatically turns on the windshield wipers if:

• a signal was received from the rain sensor;
• sensitivity regulator in position from 1 to 4;
• The wiper switch is in the intermittent position.

If a malfunction is detected in the operation of the windshield wiper, TsBKE Kalina 2 switches it from automatic to manual control mode. When the windshield heating function is turned on, the body electronics monitor the on-board voltage and limit the heating duration to 6 minutes. When the voltage drops below 12 V, the CBKE switches off the heating mode.

When the voltage drops to 9.6 V, the central unit limits the operation of the rear window and side mirror heaters. This prevents the engine from going into emergency mode. When the voltage is restored to a level of 10.8 Volts, the heaters turn on automatically.

The driver is also assisted by body electronics when working with the lighting system. When the engine starts, the daytime running lights turn on, and when the engine stops, they turn off automatically. The low beam headlights and side lights turn on when a signal is received from the light and rain sensor.

Diagnosis of errors

When you begin to notice something unusual in the behavior of your car, or there are obvious problems in its operation, then it certainly makes sense to have it diagnosed. Naturally, the OBD-II diagnostic connector will show errors most efficiently and accurately, however, not everyone has sockets to control this connector and has to use the standard one.

In order to enter self-diagnosis mode, you must:

1. Turn off the ignition.
2. Click on the daily vehicle mileage button.
3. Then, continuing to hold it, turn the key in the lock.
4. Thanks to this, all available indicators will light up, and the dial indicators will go into self-test mode and show data from zero to maximum.
5. When this happens, use the button located on the steering column switch and use it to switch the data on the instrument panel.
6. To read the fault codes, we need the last one - the third screen. Unambiguous error codes will be displayed there.

Displaying the error code on the third screen of the bookmaker. The photo shows error 4 (faulty coolant temperature sensor).

Error codes (decoding)

These are the most common error codes that can appear if there is a malfunction on the Lada Kalina.

Checking the system using special equipment

If the system is checked through a diagnostic block using OBD-II, then the code combination will consist of four characters, preceded by a letter at the very beginning.

• P - indicates a problem with the engine or transmission.
• C - displayed when an error occurs in the “running”.
• B - when such a letter designation appears, you should pay attention to the serviceability of the central locking system, airbags, and power windows.

The second digit means:

• 0 – common code for OBD-II;
• 1 – number of the car manufacturer;
• 2 – number of the car manufacturer;
• 3 – reserve code.

The third character refers directly to the type of failure:

• 1 – malfunction in the air supply system and fuel system.
• 2 – similar to code “1”.
• 3 – failures and malfunctions in the ignition system.
• 4 – auxiliary control.
• 5 – malfunctions during idle operation.
• 6 – malfunction of the ECU or its circuit.
• 7 and 8 – malfunction in the transmission.

In order to delete the error code that appears from memory, you need to hold down the daily mileage button and hold it in this position for more than –4 seconds.

Non-specific types of services

Even if the rules for safe operation of the vehicle are observed, the heater control unit may require servicing or replacement. This happens as a result of sudden switching of the heating knob of the Lada Kalina car. The operating instructions indicate that you must wait until the system warms up to a minimum, otherwise expensive repairs will be required.

From a financial point of view, the stove control unit will not be cheap, so its careful operation will save the family budget.

The heater control unit cannot be replaced independently due to the need to use special equipment. Much less often problems arise at the level of the engine control system.

The need to visit a service station will be caused by driving on a gravel road, an accident, or the result of unprofessional maintenance. The engine management system is responsible for fuel injection, so any deviations in its operation immediately put the car on hold. How long it will take to replace the engine control unit will be decided by the technician after an inspection.

It is cheaper, but repairs take much longer when the body electronics unit comes under attack. The problem can only be diagnosed in a service center. The duration is due to the fact that if the engine control unit can be replaced as a single whole, then part of the wiring must be changed along with the electronics.

Voltage surges or a simple short circuit can damage a certain sector. The light control unit will be the first to tell you about this.

Incorrectly working turn signals or emergency lights are the first sign indicating a failure in the electronic component of the car. There is no point in delaying a visit to the service center. Otherwise, the ESP unit responsible for dynamic stabilization will come under attack. Even with minor problems, the driver will notice a decrease in the lateral dynamics of the vehicle.

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Lada Kalina requires regular maintenance as prescribed by the manufacturer. If the specified deadlines are met, each element of the system will work properly.

back Why the hood on Kalina does not open - do-it-yourself repair work

Source

Seats: too dirty upholstery and everything that follows from this

In the configurations of Luxury cars, starting from the 1st generation of cars, fabric was used for seat upholstery, which was too classy. VAZ was supposed to solve this problem in the spring of 2014. The new fabric, oddly enough, ended up not being much better than the old one. Advice from experienced people: you need to put covers on the seats.

Structure of the new upholstery fabric designed for luxury trim levels

By the way, leather cases conduct heat very poorly. In trim levels where heated seats are provided, there is no point in using such a solution - heating will proceed very slowly. The owner should be aware of this so as not to waste a significant amount on an expensive and useless addition.

The fabric of the covers allows dust to pass through in any case. You will have to clean the standard upholstery sooner or later, but with the use of covers, the interval between cleanings will be longer.

Let's ask ourselves how much of a brand the fabric of the standard upholstery actually is. If we talk about difficult operating conditions, then, according to reviews, you have to clean the seats once every six months. Make a choice.

Pinout of pulp and paper

The location of the TsBKE contact connectors is shown in the figure:

1. Enter exit. CAN bus (L – line)
2. Enter exit. CAN bus (H – line)
3. Enter exit. Rear window heating control
4. Exit. Heated windshield relay
5. Entrance. Hazard switch
6. Entrance. Trunk lock actuator switch
7. Entrance. Windshield Wiper Switch (Intermittent Position)
8. Entrance. Windshield Wiper Switch (Low Speed ​​Position)
9. Entrance. Windshield Wiper Switch (High Speed ​​Position)
10. Entrance. Windshield washer
11. Exit. Seat heating relay
12. Exit. Heated windshield switch
13. Enter exit. Lighting control module (Automatic lighting mode) – for 21900-3840080-20 Not activated – for 21900-3840080-10
14. Terminal 15
15. Entrance. Engine compartment lamp switch
16. Entrance. Light switch (Left side direction indicators)
17. Entrance. Light switch (Starboard direction indicators)
18. Enter exit. Headlight high beam relay control
19. Exit. Low beam relay
20. Entrance. Lighting control module (Low beam mode)

1. Exit. Alarm sound
2. Exit. Windshield Wiper Motor (Low Speed ​​Mode)
3. Terminal 30 (Turn signals, daytime running lights, low current signals)
4. Exit. Turn indicators "Left side"
5. Exit. Direction indicators "Right side"
6. Exit. Daytime Running Lights
7. Enter exit. Park position windshield wiper
8. Exit. Windshield Wiper Motor (High Speed ​​Mode)
9. Terminal 30 (Windshield wiper motor, interior lighting)
10. Terminal 30 (Power windows, door and trunk locks)

1. Exit. Trunk lighting – for 21900-3840080-20 Not activated – for 21900-3840080-10
2. Exit. Power window switch power supply
3. Entrance. Rear left door power window switch - for 21900-3840080-20 Not activated - for 21900-3840080-10
4. Entrance. Rear right door power window switch - for 21900-3840080-20 Not activated - for 21900-3840080-10
5. Entrance. Front right door power window switch
6. Exit. Electrically controlled mirror right (Mode “Up / Down”) – for 21900-3840080-20 Not activated – for 21900-3840080-10
7. Exit. Electrically controlled mirror right (Mode “Right / Left”) – for 21900-3840080-20 Not activated – for 21900-3840080-10
8. Enter exit. LIN bus
9. Housing (Low Current Loads)
10. Exit. Trunk lock drive
11. Exit. Interior lighting unit
12. Entrance. Airbag activation signal
13. Entrance. Rain sensor sensitivity regulator – for 21900-3840080-20 Not activated – for 21900-3840080-10
14. Entrance. Trunk light switch
15. Enter exit. CAN bus (L – line)
16. Enter exit. CAN bus (H – line)
17. Entrance. Front right door switch
18. Entrance. Rear passenger door switch
19. Autostart (for Lada Connect system)
20. Entrance. Front left door switch

1. Exit. Car interior lighting (Energy saving mode)
2. Exit. Driver's door lock motor
3. Exit. Front left door power window
4. Exit. Front right door power window
5. Exit. Rear left door power window – for 21900-3840080-20 Not activated – for 21900-3840080-10
6. Exit. Rear right door power window – for 21900-3840080-20 Not activated – for 21900-3840080-10
7. Housing (High Current Loads)
8. Exit. Passenger door lock motors
9. Exit. General "starboard"
10. Exit. General "left side"

Relays and fuses lada granta

Fuse and relay box in the passenger compartment

To access the mounting block, pull the bottom left corner of the cover to release the left locking point 1, then release the middle bottom point 2 and the two right locking points 3 and 6, then release the top locking points 4, 5 and remove the cover.

Installation of the cover is carried out in the following order: first snap the right fastening elements of the cover at points 6 and 3, then snap the lower fastening elements of the cover at points 2 and 1, then the upper ones at points 4 and 5.

New mounting block

Fuse box in the engine compartment under the hood

Please note that there are different variations of this block.

Connection option 1

1. 30A Low beam headlights or main relay, circuits protected by fuses F1 and F21 of the mounting block in the passenger compartment 50A Windshield heater
2. 60A Generator VAZ-2190
3. 60A Generator
4. 30/40A Heater fan (heater fuse grants)
5. 50A Electromechanical power steering
6. 60A ABS block

Connection option 2

1. 60A Generator
2. 60A Generator
3. 30/40A Electric radiator cooling fan
4. 40A ABS/ESP
5. 25A ABS/ESP
6. 50A Electric Power Steering Controller

Connection option 3

1. 30A Low beam headlights or main relay, circuits protected by fuses F1 and F21 of the mounting block in the passenger compartment
2. 60A Generator
3. 60A Generator Lada Granta
4. 30A Heater fan (heater fuse grants)
5. 50A Electric power steering

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The fourth part of errors

Errors numbered P0422 (441, 444, 445) indicate that the converter has become completely ineffective, the system that captures gasoline vapors is damaged, or the air through the adsorbent purge valve is not consumed correctly, or there is a violation in the valve in the iceberg purge. The only difference is that a normal connection break may occur, and in the second - a short circuit along the circuit, and the action may indicate both the ground and the on-board network, which, in turn, will also require transportation for maintenance.

P0480 (481) indicates problems with the fan relay, or an open circuit along the circuit responsible for controlling the fan. It may also indicate that the fan is no longer receiving the required degree of cooling.

The fifth part of the errors, numbered P0500 (506, 507, 511, 560, 562, 563), is not a separate group, but allows us to conclude that if they appear, the sensors may no longer display the speed at which the car is moving.

Disabling the cold speed system if the engine speed was too low or high and there is a breakdown in the control circuit of the regulator responsible for idle speed. In addition, significant malfunctions can occur due to a lack of electrical energy for the Lada Grant to fully operate.

For diagnostics, reading indicators and errors, ELM327 automotive scanners are used. They also use other multi-brand devices that have the ability to diagnose body electronics, airbags, etc. They also work using the OBD2 protocol with a CAN bus:

As mentioned at the beginning of the article, Granta received new “brains” with CAN support (M74CAN). This innovation is capable of integrating “brains” with alarms and radios with a CAN bus.

They often install a “Standard” controller with Itelma number 11186-1411020-22: This ECU is not compatible with earlier VAZ models. In early VAZs, for example, Priora, the ECU came with a K-channel for data transmission.

Location of the ECU for Granta:

The “brains” are located at the bottom of the front panel, or rather under the glove compartment. It will be better visible if viewed from the passenger seat. The ECU is hidden by sound insulation and upholstery, so it will not be easy to get it out.

Dashboard diagram of Lada Granta

1-block wiring harness of the wiring panel to the block of the front wiring harness; 2-block of the wiring harness of the wiring panel to the block of the front wiring harness; 3-block of the wiring harness of the wiring panel to the block of the rear wiring harness; 4-block of the wiring harness of the wiring panel to the block of the wiring harness rear;

5-lighting control module;6-ignition switch VAZ-2190;7-on-board computer mode switch;8-windshield wiper switch;9-instrument cluster;10-light alarm switch;11-trunk lock drive switch;

12-diagnostic block; 13-instrument panel wiring harness block to the air supply box wiring harness block; 14-rear window heating switch;15-hazard warning switch; 16-brake signal switch; 17-instrument panel wiring harness block to the radio;

18-block of the instrument panel wiring harness to the radio; 19-rotating device;20-driver airbag module;22-mounting block;23-electric power steering;24-cigarette lighter;25-heater control panel backlight lamp;

26-illuminator;27-instrument panel wiring harness block to the ignition system wiring harness block;28-controller;29-clutch pedal position signal switch;30-electronic accelerator pedal;31-additional resistor;32-electric heater motor;33-electric motor switch heater; 34-door lock system control unit.

Relay:

K1-relay for the electric fan of the engine cooling system;K2-relay for turning on the door lock;K3-additional starter relay;K4-additional Lada Granta relay;K5-relay-breaker for direction indicators and hazard warning lights;K6-windshield wiper relay;

Typical faults

If the electrical package control unit fails for some reason, this can lead to the following problems:

1. Failure to operate power windows. Of course, before disassembling the control module, you should make sure that the window regulators do not work precisely because of it. It would be logical to first check the safety element, as well as the lift control unit, which is built into the driver's door. In practice, it often happens that the cause of power window failure is poor wiring contact on the unit itself.
2. The optics stopped working - low beam, turn signals, etc. In this case, the safety elements, light sources and steering switch are first checked. There is a possibility that the reason lies in a broken contact directly on the switch; if this is the case, then they should be re-soldered. If the reason is that the unit is not working, it will need to be dismantled and disassembled in order to find the burnt-out element and re-solder it. If soldering does not help solve the problem, the device will have to be replaced.
3. Some of the equipment has stopped working, while the devices, as at first glance may seem, are in no way connected with each other. The fact is that the module itself includes many elements and controllers, each of them is responsible for performing certain functions. If two or more controllers fail at once, it can cause serious damage. For example, the optics, heated rear and front windows, the trunk door and the window regulator will immediately refuse to work. It is necessary to locate the failed controller and replace it by re-soldering.
4. A fairly common problem that can occur is a break in the wiring of the unit. It is installed in a virtually inaccessible place, but if electrical work is being done, for example, installing an anti-theft system, then most likely the car owner will encounter a TsBKE. And if the wiring is damaged during the work, of course, this will affect the functioning of the device and, accordingly, the performance of certain functions.
5. Oxidation of contacts on module connectors. If you encounter such a problem, we recommend paying attention to the humidity in the cabin. Often, oxidation at the outlets occurs precisely as a result of high humidity. The contacts can be cleaned, this is not a problem, but the problem of humidity must be addressed, since otherwise it can lead to failure of the microcircuit as a whole.
6. Board failure. The most terrible problem for the car owner, because because of this the device simply will not be able to work normally. Accordingly, it will need to be replaced, and this, in turn, costs a lot of money (author - Alexander Fisher).

Source

Lada Kalina wagon 2009, engine Gasoline 1.4 liter., 89 hp, Front drive, Manual — electronics

Comments 6

It was similar, on the right side the station lifts did not work (even the buttons in the doors did not respond) if from the driver's door, there was a clicking sound in the block. The floor of the cabin was dismantled, they couldn’t find it, then an electrician connected the nubuck to a diagnostician and showed a short circuit on the right side, some wire under the rear seat was rotten

in coil motors - they should show a short circuit when checking

When I was digging towards the electronics control unit (the windows on the starboard side also moved jerkily and I had to wait until the unit either cooled down or rebooted) I came across records of people whose contacts in the driver's door connector or in the harness near the driver's left foot were green . Everything there was in new condition, and only replacing the comfort unit helped.

Describe what you did to the car before? Have you touched the immobilizer before? What additional electrical components are installed in the car (alarm, auto start, etc.) This is important in order to understand the problem.

On Kalina, the luxury electrical package consists of an immobilizer (the master unit for data exchange via the bus), a control unit in the driver's door and an electrical package control unit under the left rear seat. They communicate via a line bus. There are no relays in the fuse box that control the system. Only fuses. If I'm not mistaken, then there are 2 of them. One is responsible for the entire electrical package, the second for the immobilizer (namely the car starting function). The immobilizer in LC1 also performs the functions of turning on both front and rear foglights, controlling heated mirrors (signal transmission via the line bus) and interior lighting.

There is a problem that in the central left pillar the wires going to the left rear door begin to short out. Then the electrical system literally starts going crazy, rolling down all the windows, setting the alarm against its will, etc. Check this moment.

Overall the system is quite reliable.

The immobilizer was not touched at all. There is an additional alarm with auto start. There were symptoms - the rear window failed, then the driver's window began to move jerkily, a couple of cm at a time. I threw in a used window control unit and the comfort unit died completely. There was a strong burning smell; upon opening, 2 burnt mics were found. Then, by ringing, I discovered that both rear motors were closed. I disconnected the chips from them so as not to burn the new block. And for glass and locks to malfunction, this did not happen.

There is a 99% probability - a short circuit in the central pillar. This is exactly what happened to me.