Repair of additional Lada Vesta body electronics unit

November 13, 2017 Lada.Online 93 448 88

In some configurations of the Lada Vesta (for example, Lux), an additional body electronics unit (EMM or comfort unit) is installed inside the panel, which is responsible for the operation of the dimensions, daytime running lights (DRL), and wipers. Under some circumstances, the external output circuits of the EMM may short circuit, causing the light sources to not operate. Let's figure out what can be done in this case.

Where the central body electronics unit (CBKE or BCM) and the additional body electronics unit (EMM) are located is shown in the photo:

Central unit of body electronics Lada Vesta and XRAY (description, reviews)

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The electrical circuits of modern LADA cars are very different from previous AvtoVAZ models. Some of the relays have disappeared and instead they are replaced by an electrical package control unit (comfort unit), which is responsible for the operation of the ESP, central locking, turn relays, turn signals, etc.). Lada Vesta and XRAY use a similar CBKE module (central body electronics unit).

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Background

This situation arose with one of the Drive members, who is known there under the nickname Schoolboy11, with his Lada Vesta Red Menace car.

After purchasing Vesta, he decided to replace the size lamps with two-pin LEDs. He approached the choice of diodes responsibly - he purchased high-quality, proven products that were selected by professionals. Naturally, with them the exterior of the sedan was completely transformed.

Vesta looks much cooler with LEDs!

Purpose and description

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The central body electronics unit (CBEC) came from Renault and is located under the panel behind the glove box. The block is designed to perform the following functions:

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• Access control system functions;

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• Starter control;

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• Control of relays of additional consumers;

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• Control of the rear window heater and electric side mirror heaters;

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• Windshield defroster control;

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• Control of direction indicator and hazard warning lamps;

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Read also:  Review of modifications to the crankcase protection on the Lada Granta Liftback. Do-it-yourself installation
• Interior lighting control;

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• Control of door sill lamps (for the “Lux” package);

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• Trunk lighting control;

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• Windshield wiper control (for “Classic” and “Comfort” trim levels);

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• Energy saving control of vehicle interior lighting devices;

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• Monitoring the state of the brake signal switch (BST);

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• Monitoring the state of the clutch pedal position signal switch (CPPS) (for configurations with a manual transmission);

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• Indication.

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AvtoVAZ prescription (unlocking circuits in EMM)

The EMM unit goes into defense. To unblock channels:

1. Without removing the block from the EMM block, connect the connector with the wire to the white block, pin 3 (free).
2. Connect the other end of the wire to the glove box illumination block (green wire).
3. Turn on the ignition for 2-3 seconds.
4. After turning off the ignition, remove the wire connection.
5. Use Grade-X to clear errors in the EMM block.
6. Check the functioning of the previously blocked circuit in the EMM unit.

CBKE schemes

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Electrical connection diagram for TsBKE on LADA VESTA: 2 – rechargeable battery; 3 – starter; 4 – rear left outer lamp; 5 – left headlight; 7 – rear window heating relay (K3); 8 – right headlight; 10 – rear outer right lamp; 13 – trunk light; 15 – fuse 60 A (F70); 16 – additional relay (K8); 17 – ignition switch; 26 – alarm switch; 30 – fuse 5 A (F20); 32 – left steering column switch (light alarm switch); 34 – fuse 60 A (F75); 35 – rear window heater; 44 – windshield heating relay 1 (K21); 46 – windshield heater; 47 – lampshade lighting of the glove box; 48 – switch for the glove compartment lamp; 51 – TsBKE (VSM controller); 58 – fuse 30 A (F61); 59 – left threshold lamp (installed on luxury equipment); 60 – right threshold lighting lamp (installed on the “luxury” configuration); 61 – relay of additional consumers (K2); 63 – fuse 10 A (F32); 84 – fuse 3 A (F43); 87 – left outside mirror; 88 – right outside mirror; 120 – additional starter relay (K23); 134 – brake signal switch; 138 – fuse 5 A (F15); 164 – air conditioner control panel (connection diagram for the “comfort” package); 185 – interior lighting unit with ERA-GLONASS interface module; 196 – fuse 5 A (F24); 200 – fuse 15 A (F11); 201 – fuse 15 A (F12); 202 – fuse 10 A (F13); 203 – fuse 10 A (F14); 204 – fuse 5 A (F17); 205 – fuse 5 A (F16); 229 – fuse 3 A (F49); 230 – clutch pedal position signal switch; 231 – windshield heating relay 2 (K22); 233 – fuse 5 A (F80)

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• location of fuses F1-F59 and relays K1-K20 in the interior mounting block;

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• location of fuses F60-F80 and relays K21-K28 in the motor mounting block

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Electrical connection diagram of the TsBKE on a LADA VESTA vehicle (Comfort package) : 2 – rechargeable battery; 3 – starter; 9 – rear inner left lamp; 15 – fuse 60 A (F70); 16 – additional relay (K8); 17 – ignition switch; 20 – fuse 15 A (F1); 23 – rear inner right lamp; 28 – fuse 5 A (F74); 31 – reverse light switch; 33 – right steering column switch (windshield wiper switch); 51 – TsBKE (VSM controller); 63 – fuse 10 A (F32); 79 – electric motor for windshield wiper; 80 – washer motor; 120 – additional starter relay (K23); 198 – fuse 25 A (F40);

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• location of fuses F1-F59 and relays K1-K20 in the interior mounting block;

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• location of fuses F60-F80 and relays K21-K28 in the motor mounting block

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After replacing the TsBKE, it is necessary to perform the training procedure (entering parameters) and automatic configuration of the TsBKE using the Grade-X diagnostic device. You can also view error (fault) codes using this device. You can get acquainted with the functionality of the CBKE in more detail, as well as its diagnostics, using the TI (device, fault diagnosis of the CBKE).

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On the one hand, this functional device allows you to more finely tune the operation of the electronics. On the other hand, the unit has a complex structure, which makes independent repairs more problematic. If the TsBKE fails, you will have to contact the dealer, because It is unlikely that the necessary equipment for programming or diagnostics will be at hand.

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Attention! It is impossible to retrain a CBKE taken from another vehicle.

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Which implementation do you like best? The presence of a simple circuit, where there are turn relays, ESP, etc., or the presence of a central electronics control unit? Find other materials on repair, maintenance, modifications and tuning of these cars in the contents (XRAY crossover, Lada Vesta sedan).

Categories of products that may be of interest to you based on the article “Central unit of body electronics Lada Vesta and XRAY (description, reviews)”:

Problem

However, difficulties began very soon. One “fine” day, the dimensions on his car burned out, everywhere. Naturally, he tried to install standard lamps, but this did not help. As you know, in such situations everything is usually limited to replacing the fuses for the left and right side lights, which in Vesta’s manual are indicated by the symbols F16 and F17.

However, if you remove the cover that covers the fuses, the owners will find one very unpleasant surprise - fuses F16 and F17 are not there. There are not even contacts - just technological holes.

The cover that covers the fuses.

Separately, it is worth mentioning the lid itself. It is made the same as on Grant - from hard plastic. Moreover, plastic clips do not look very reliable and, as practice shows, they break quickly. On the other hand, the lid is equipped with a foam insert that serves as sound insulation.

Electrics, sensors, battery Lada Vesta

Products from the Dustershop77 range on the topic of the article:

Stove control

There have been no fundamental changes in the control of the air conditioning and ventilation system. Still, you may notice a few new keys.

Block "Classic"

Using buttons 11 to 16 you can adjust the direction of the air flow. Using the regulator number 9, the air temperature is controlled. 17 – air flow power.

"Comfort" block

Using key 18 you can turn on the air conditioning, 19 – air recirculation in the car interior. Control of parameters such as fan speed, temperature, air flow distribution is similar to the “Classic” version.

Block "Lux"

As for the “Lux” version, only two keys have been changed. 24 is now responsible for forcing the air conditioning on, as well as for heating the mirrors.

When you press key 20, you activate the automatic mode for selecting the air temperature in the cabin depending on the current temperature outside the cabin.

Option #1. We call the master

The problem of locked keys and locked doors is as old as time. This situation is not isolated; this happens to drivers quite often. It is worth noting that the more complex the security system installed in the car, the more difficult it is to get the keys.

In this case, all you need to do is call the manager, describe the problem, and soon specialists will come to the rescue to help solve incidental situations such as a door being blocked.

If your insurance company does not provide such services, then all you have to do is call a car mechanic. You will have to wait a long time for the master to arrive - about 2 hours, or even longer. But he will open the lock without damaging the car with a tool specially designed for this purpose. The service is paid, the cost depends on the region, urgency and complexity of the work.

Short circuit protection has tripped

The optional body electronics unit uses drivers (vnq6004sa), which have built-in non-volatile memory and electronic short circuit protection. After the electronic protection is triggered, the lighting control driver stops supplying voltage to the headlights or DRL contacts until it receives an unlock command from the controller.

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If the command is not received independently, then it is possible to unlock the EMM manually using a special Grade-X scanner (available from LADA dealers). After connecting the device, you need to find the corresponding functions (left or right side lighting) and check the appropriate boxes. After which we perform a reset to factory settings, and the operation of the dimensions with DRLs is restored.

Option #3. Alternative methods

These methods take a little longer and require some tools

For example, using a drill, you can carefully drill out the lock cylinder. Minus - most likely, you will have to change all the lock cylinders in the car

If you manage to force this pseudo-key into the lock, then it can be turned. Sometimes a screwdriver can act as a lock. But the larva will be irrevocably damaged.

The broken window was mentioned above. There is no need to write off this option, but it should be used only as a last resort, when other methods do not work or there is no time to use them.

In this case, you need to be prepared for the fact that you will have to drive in inclement weather with an open window, or that a traffic police officer will stop you and have to explain to him what happened. If you cannot do without breaking the glass, be careful not to get hurt, do not hit with your bare hand, it is better to use improvised objects.

In this case, he will help solve the problem without unnecessary effort, time and nerves.

https://youtube.com/watch?v=Rgo_Q4qmquE

Short circuit protection has tripped

The optional body electronics unit uses drivers (vnq6004sa), which have built-in non-volatile memory and electronic short circuit protection. After the electronic protection is triggered, the lighting control driver stops supplying voltage to the headlights or DRL contacts until it receives an unlock command from the controller.

Read more: What kind of oil to pour into Yamz 236

If the command is not received independently, then it is possible to unlock the EMM manually using a special Grade-X scanner (available from LADA dealers). After connecting the device, you need to find the corresponding functions (left or right side lighting) and check the appropriate boxes. After which we perform a reset to factory settings, and the operation of the dimensions with DRLs is restored.

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.

Climate control unit

How to use climate control? It's simple, you just need to know the purpose of the buttons. The main difference between the control units of cars with air conditioning and climate control is the presence of the AUTO button (20) on cars with climate control. This button is designed to automatically regulate air flow directions to more quickly achieve and maintain the selected temperature.

8 — adjustment of the stove blowing speed

9 - temperature adjustment in 1 degree steps

10 — climate control information board

15 — Heated windows/side mirrors

18 - turn on the compressor

19 — turning on air recirculation in the cabin (air from outside is not supplied, the cabin filter is closed)

21,22,23 — selection of air flow directions (several directions can be selected simultaneously)

24 - maximum air supply, coupled with heated windshield, for quick defrosting.

Several simple ways to open a VAZ without a key

09.07.2018

No one is immune from unpleasant situations, we are all human, sometimes we forget about some things. For example, we forget to take the keys to a VAZ car. At least once, a situation happens to car enthusiasts when they either left their keys at home and have no access home, or lost them and don’t want to call a tow truck. Of course, there is such an opportunity as calling a specialist who will help open the car.

If you need help opening a VAZ car in Rostov-on-Don, then our service experts are ready to help you with this at any time of the day.

Don't want to contact the service? Then reserve your nerves and try to open the car yourself. The process is not very complicated, but it requires some skill and some simple tools.

Next, we will look at several ways to open a VAZ without a key.

Use this knowledge only to open your own car, or a friend's car.

Before starting the autopsy

Before you take decisive action, remember if you left spare keys with someone you know just for such a case. If not, then take note of this method, perhaps someday you will leave your keys at home/lose your keys again.

Simple ways to open a VAZ

Now let's get down to the methods. Conventionally, they can be divided into two groups: radical - when actions are decisive and not always justified, and delicate - calmer, conservative methods:

As you understand, it is better to use delicate methods, since more decisive and drastic ones will lead to the fact that you will have to pay for repairs. For example, if you break the lock to your vehicle, you will have to order it along with new keys and wait a long time until the order is fulfilled. Thus, you will not be able to use the car. Well, having broken the glass, you will have to install a new one.

Let's look at delicate methods

Method 1: Open the trunk

To open the trunk of a VAZ, you will need:

• Using an open palm, strike the area below the trunk lock. The blow must be strong and sharp enough.
• Take an awl (if it’s not there, then buy a nail file at the nearest stall, and you don’t have to open the trunk).
• Using an awl or nail file, try to get under the door seal and press the tongue.
• The door is open!

Method 2: Open the hood

• You will have to crawl under the car to get the lanyard connected to the hood latch. If you can't find it, try to find it through the radiator mesh.
• Mechanically press the tongue or simply pull the cable, the hood will open.
• On the car battery, find the terminals with the “minus” value, click them on the mount a couple of times.
• Since the body has a “minus” value, disconnecting it with the terminal will cause the doors to unlock.

Method 3: Open the VAZ door

• To do this, you will need a fairly stiff wire, go to a hardware or construction store and buy it. Or use a woman's nail file, but you will still need wire.
• Using the item of your choice, pick out the glass seal near the door lock.
• Bend the wire with a hook and begin to push this hook into the hole formed.
• The hook will rest against the base of the lock; twist it until the hook goes down.
• As soon as the hook falls down, use it to hook the lock and pull the hook towards you.
• The door is open!

Finally

To avoid such trouble, you just need to choose a person whom you trust to store your spare keys. If something happens, you can go to him or he will bring you the keys himself.

It also makes sense to save in your phone the number of a locksmith who can help you solve such an unpleasant problem.

If you have no experience or even an understanding of how locks are made, then it is better to immediately call a specialist who will do everything quickly and accurately than to try to open the car with your own hands, especially since there is a high risk of damaging it.

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.

Channels burned out

In some cases, as a result of a short circuit in the additional body electronics unit, one or two channels burn out (the dimensions on only one side do not work, or they do not light up at all). You can restore the operation of the EMM unit using a conventional relay by connecting it externally to the body electronics unit (directly to the wires from the connectors of this unit):

• If one channel is burned out, you will need a relay with one group of contacts
• If two channels burn out, you will need a relay with 2 groups of contacts

Schemes for restoring the operation of the channels of the additional body electronics unit responsible for the operation of the side lights and DRLs:

1. Restoring dimensions (the dotted line indicates the second channel of dimensions, in this case we install a relay with two groups of contacts);
2. Restoration of the left DRL;
3. Restoration of the right DRL;
4. Restoration of DRL (left and right).

Addition to scheme No. 1 (restoring dimensions):

Addition to diagram No. 3 (restoration of the right DRL):

Addition to diagram No. 4 (restoration of left and right DRL):

If the license plate light and buttons in the cabin do not light up

. Restore the burnt channel according to scheme No. 1, only instead of d11 you need to restore d24. That is, we swap two wires S2-D11 and S2-D24, the rest is the same. In other words, S2-D24 and P2-B2 go to the contact group. And the relay coil goes to S2-D11 and P1-A10. We disconnect D24 from the EMM (more details on the 2nd page of comments).

Attention! If the short circuit occurs as a result of the installation of LEDs or during the installation of non-standard equipment (for example, a rear view camera, interior lighting, etc.) connected to the standard wiring (the factory integrity of the wiring is broken), then the warranty does not apply to the additional body electronics unit. Read more: German cars brands list

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Short circuit protection has tripped

The optional body electronics unit uses drivers (vnq6004sa), which have built-in non-volatile memory and electronic short circuit protection. After the electronic protection is triggered, the lighting control driver stops supplying voltage to the headlights or DRL contacts until it receives an unlock command from the controller.

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If the command is not received independently, then it is possible to unlock the EMM manually using a special Grade-X scanner (available from LADA dealers). After connecting the device, you need to find the corresponding functions (left or right side lighting) and check the appropriate boxes. After which we perform a reset to factory settings, and the operation of the dimensions with DRLs is restored.