How to disable the passenger airbag on a grant?

Characteristics of power steering of Lada Largus

This unit is no less important than the brake system. The safety of the driver and passengers also depends on its performance. Power steering (hydraulic power steering) provides the ability to control the car by easily positioning the drive wheels in the desired direction.

Largus power steering diagram

The Lada Largus is equipped with a combined type hydraulic booster, i.e. some of its elements are located directly in the steering mechanism housing. In other words, they are a component of the mechanical part of the steering column. Power steering Lada Largus consists of a standard set of elements:

• tank;
• power steering pump, complemented by a working fluid bypass valve;
• pipelines;
• redistribution mechanism;
• working mechanism.

There are not many components, which explains the high reliability of the hydraulic booster. Malfunctions associated with its operation occur infrequently. Typically, problems arise due to violations of operating rules by the car owners themselves. Much less often - due to the natural wear and tear of parts, but, of course, one cannot ignore the low quality of components.

It's easy to check; just open the hood. The fluid in the system is also needed to lubricate the power steering elements. If the level is low, parts will begin to wear out too quickly. With such use, the unit is more likely to fail.

Burning “Airbag SRS”, “Airbag”, or “SRS” indicator light: causes and solutions

So, for what reasons may the Airbag or SRS indicator appear on the instrument panel:

The integrity of the security guard is compromised - one of the most unpleasant options for a car owner. Due to a violation of integrity, the control unit may no longer receive the appropriate impulses from controllers, belts and other components of the safety system. There is a possibility that the seat belts themselves are equipped with a sensor that detects whether the seat belts are fastened; accordingly, if the driver or passenger is not fastened, the indicator on the dashboard will light up. This is necessary because the operation of the safety guard is relevant and most justified only in the case when the driver moves in a fastened state. In the event that an accident occurs, the PB will fly out at a speed of about 200 kilometers per hour, respectively, if the driver is not wearing a seat belt, this will correspond to hitting a concrete wall at a speed of 25 km/h. Given this factor, most vehicle manufacturers have programmed the PB so that if an accident occurs, it simply will not operate. And this, as you might guess, suggests that there can be no talk of any security. If you try to deceive the system by pulling straps behind the backs of chairs or using all kinds of emulators that will allow you to deceive it, it will be in vain. After all, this way you are only deceiving yourself; if a serious accident occurs, neither the driver nor the passengers will be able to survive because of this. Another problem is the lack of contact or very poor connection of elements in the power supply circuit of the PB. There is a possibility that the connectors are poorly connected. It is necessary to check the quality of the connection, as well as all contacts. Also, the indicator light on the dashboard may appear due to failure or damage to the shock controllers. They may also be poorly connected. We recommend checking the quality of the connections of the elements, as well as the connectors. But if all contacts are working, and the problem indicates a malfunction of the shock sensors, then these devices must be replaced quickly, otherwise there will simply be no point in the fact that the car is equipped with a power supply. One of the most common reasons is a broken door contact. If any repair work is carried out on the doors or they are changed, and the connectors are disconnected, then the contacts must be checked the next time they are connected. It happens that after reconnection the indicator still continues to light, this indicates the need to reset the control unit memory. Another reason is moisture ingress. If moisture gets on the electrical contacts or on the strap lock, it may cause poor contact or a short circuit. If you encounter such a problem, then the places where moisture gets in need to be dried. Failure or incorrect operation of the control unit. Perhaps the contacts on it also came loose. But if the problem lies in the unit’s board itself, then most likely it will have to be replaced. Safety devices. If these elements fail, the corresponding icon will also light up on the instrument panel.

But as practice shows, car owners pay attention to fuses last. Another reason why this problem may occur is when the seats or control panel are replaced. During replacement, the integrity of the wiring could have been damaged, in particular, we are talking about the connection points. In addition, a malfunction may occur as a result of violations when replacing the steering wheel.

If during replacement you damage the contacts, the indicator will always light up. If the safety guards were triggered during a collision, and the indicator continues to light after they were restored, this indicates that information about this remained in the memory of the control unit. Removing the error will solve the problem. The service life of the PB has been completed. On average, the service life of airbags is about 8-10 years; after this period, car manufacturers usually do not guarantee the performance of the airbag. Low voltage in the vehicle's on-board network. First of all, you also need a generator device.

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Need to unplug

Disabling is necessary:

1. If there is a special child seat in the passenger seat for transporting children. In this case, the use of an airbag poses a serious danger to the child. Since upon impact it flies out at great speed, and the seat is fixed in the front seat in the opposite direction and secured with a seat belt, the impact caused during a traffic accident will cause serious injuries to the child (it will shoot and damage the child seat and the child);

2. When carrying a pregnant woman as a passenger. Since upon impact the passenger is fastened with a seat belt, when fired, it will cause irreparable damage to the unborn child. In this case, the use of a passenger airbag is prohibited.

On most modern cars, disabling the passenger copy occurs as follows:

• On the side of the front panel there is a control for turning off this airbag. Turning it deactivates the function and turns it off. At the same time, a corresponding sign indicating the deactivation of the function appears on the dashboard. After this, the airbag will not fire upon impact, thereby in many cases saving the lives of passengers and protecting them from additional injuries;

• in some cases, deactivation is carried out using the standard ignition key. In this case, the deactivation connector may be located in a different location (on the front panel, on the side of the panel, or in another location provided by the manufacturer).

Eliminating squeaks from the dashboard visor.

The last common source of squeaks can be the instrument panel visor. To eliminate squeaks, we do not need to remove the entire visor trim. It is enough just to move it a little away from the instrument panel body. First you need to unscrew the two self-tapping screws at the top of the visor, remove the fuse box cover and unscrew the self-tapping screw securing the instrument visor.

Then we apply Bitoplast 5mm or Madeline to the place where the visor comes into contact with the instrument panel and return the visor to its place.

By completing a set of these simple measures, you are guaranteed to get rid of the most common noises in your salon.

Don’t forget to also read our other useful articles and discuss them on our forum.

How to disable the airbag on the Lada Granta

Quite recently, a “cricket” settled somewhere near my passenger’s airbag, and before that the heater air duct was rattling, so I decided to remove it! 1. Remove the terminal from battery2. Remove the glove compartment (two latches on top)3. Look up where you removed the glove compartment, there are 4 screws visible - unscrew them, then 2 screws are located right next to the glove compartment lid.4.

Remove the protective plug that you unscrewed5. We see 2 bolts with a 13 key, unscrew it6. We push up from below and the entire pillow assembly with the lid comes out easily.7. Disconnect the connector from the airbag. The connector is disconnected in this way - lift the red plug up and pull the connector out of the mother.8.

You will see further actions:

The air duct that goes to the front passenger is rattling! I placed foam rubber tightly. and I covered the panel where the “PB” cover is attached with madeleine. That's all

! the creaking and rattling went into oblivion., for how long...

Accident statistics show that an airbag reduces the death rate by an average of a third. There are cases when a serious collision ended in a slight injury due to the opening of the airbag. But what to do after the airbag deploys on an Opel Astra, Lada Granta or Priora, as well as on other cars? How to fix the error?

Airbag device

An airbag cushion is an elastic base that fills with gas in the event of an accident.

The complex of components also includes a control system and a gas generator. Starch or talc acts as a lubricant for the material, guaranteeing clear opening.

The gas generator's job is to fill the airbag with gas during a collision. Together, the gas generator and the shell form an airbag.

Airbag designs are classified:

1. By the nature of the action - with one and two-stage operation;
2. In shape - in the form of a tube or dome;
3. According to the type of gas formation - hybrid or solid fuel.

A solid fuel generator is based on a fuel charge, a squib and a housing. The airbag is charged with a special composition based on silicon dioxide, potassium nitrate and sodium azide.

The fuel is ignited by the action of the squib, after which gas is formed.

In a hybrid gas generator, the main components are a squib, a housing, a gas and a solid propellant charge.

After a collision, the airbag cushions are filled with compressed gas, releasing a solid propellant charge.

The task of the control system is to combine devices (control unit, shock sensors, squib) and guarantee their precise operation.

How does an airbag deploy in an accident?

The airbag is deployed during a collision with another object or vehicle.

Depending on the location of the impact, the front or side airbags are activated. As soon as the impact force is above the limit level (set by software), the impact sensors send a command to the control unit.

The latter collects information, analyzes it and decides whether to deploy the airbags or not. The described actions occur in a fraction of a second.

Taking into account the analysis of the severity and type of accident, the whole or only part of the system works. Sometimes it is enough to activate only the seat belt tensioners or they work in conjunction with the airbags.

The control unit sends a command to turn on the gas generator of a specific airbag. In this case, the response time is 30-40 ms. During this period, the gas generator guarantees the expansion and filling of the pillow with gas.

As soon as the airbag touches the human body, it ruptures and deflates.

The front airbags are activated when a number of conditions are met:

• Car fire;
• Increasing the specified impact force in a frontal collision;
• Vehicle crash;
• A sharp collision with the wall of a hole, a curb or the edge of a sidewalk;
• Impact to the end of the car (oblique frontal collision);
• A hard fall on the wheels after a “jump”.

It is worth knowing that the front airbags do not deploy in the following cases - when the car rolls over, a side impact or contact from the rear.

It is built into the car program that before opening the airbag, the speed of deceleration of the car and movement at the moment of collision, the presence of connected seat belts, and so on are analyzed.

For more information on this topic, see here https://autotopik.ru/obuchenie/503-kak-rabotaet-podushka-bezopasnosti.html.

What to do if the airbag deploys?

Car enthusiasts are often lost and don’t know what to do when opening an airbag. On many cars (Lada Granta and Priora, Ford Focus 2, Lada Priora, Opel Astra and others), you will have to perform the following manipulations:

• Install new airbags, replacing those that have already deployed;
• Correct the “brains” of the control system, that is, the unit that is responsible for the SRS. Instead of the error, a dump of the new machine is installed (as if there was no accident);
• Install a special snag (plug).

Source: https://l2rv.ru/info/kak-otkljuchit-podushku-bezopasnosti-na-lada/

Children's question

This notice is in every car equipped with an Airbag.

According to the rules for transporting small children in cars, small passengers must be in the back seat. But, if the baby is excessively active, then the safest place for him is next to the driver in the front seat. In this case, an unexpectedly deployed airbag poses a serious danger to the child. Manufacturers, such as Mercedes and Opel, have taken into account the possibility of such a situation and have developed an automatic system that recognizes the presence of a child car seat in the front seat. The airbag turns off automatically.

Additional information regarding airbag deactivation is provided in the instructions for each vehicle. Here you can also find information about whether there is permission to transport child car seats in the front seat. If the manufacturer does not give such permission, this means that automatic shutdown will not follow, which means that the child must remain exclusively in the back seat of the car. You should not ignore the ban and take responsibility for the life and health of the baby.

Removing the steering wheel and airbags for a Lada Granta

Operating a Lada Granta car requires certain protection for the driver and passengers. Not so long ago, airbags began to be installed on cars of the domestic automobile industry. But there is one problem: they are disposable and will have to be replaced when triggered. This process is difficult and requires some experience and knowledge. Also, in rare cases, it is necessary to remove or replace the steering wheel, which can crack or become deformed when the driver hits it.

Lada Granta with airbag

Causes of airbag failure

The reason for the failure of the Lada Granta airbags is:

• Triggered due to an accident.
• Closure of the pillow package, which prevented it from opening, or a manufacturing defect.
• Battery failure, which caused the airbags to deploy.
• Wear of the pillow module.

Reasons for failure of the Lada Granta steering wheel:

• Deformation of the structure due to the driver hitting the steering wheel.
• Braid wear and cracks.
• External factors that caused damage to the steering wheel.

All this becomes the reason for the forced replacement of the steering wheel and airbags.

Catalog numbers and steering wheel analogue options

It is generally accepted that only original spare parts for the steering wheel and airbags can be installed on the Lada Granta, but this is a misconception. There are several analogues of these parts, which are known only to tuning masters and some car enthusiasts.

Let's look at the catalog numbers and manufacturers of the Lada Granta steering wheel:

1. The original VAZ part has the manufacturer's catalog number - 21910-3402018-00. It fits perfectly and does not require any improvements or modifications.
2. An analogue can be the steering wheel from article number DM-K65100.
   This part, just like the original one, can be installed without modifications. Available in black with red or blue accents. One of the sports steering wheel options
3. Tuning steering wheel. There are many options, and essentially any type or model can be installed. It is worth remembering that you will have to install an adapter between the tuning part and the steering shaft.

Catalog numbers and airbag manufacturers

Let's look at the catalog numbers and manufacturers of Lada Granta airbags:

1. The original spare part is produced by the VAZ plant. It consists of several elements that include: a gas generator module (21910-8232010-00) and a safety control unit (21900-3824010-00).
   Airbag module

   Airbag control unit

   Read also:  Description of the procedure for replacing rear wheel brake pads (for use on VAZ-2106 / VAZ-2103 models)
2. Manufactures alternative airbags. They have the same catalog numbers as the original, but are highly reliable and accurate.

Thus, you can understand that in addition to standard parts for the steering wheel and airbags of the Lada Grant, there are also analogues that few people know about.

Airbag replacement technology

To dismantle the Lada Granta airbag, you will need a 5 mm rod and a flat-head screwdriver. So, let's get down to the process itself:

1. As with any repair, you need to disconnect the minus terminal.
2. Using the rods, you need to tighten the cushion clamps.
   This is done through special holes, the marks of which are on the side of the steering wheel. In the places of the marks, press the rod on both sides to unclip the cushion latches
3. After the clamps are clamped, the assistant must pull the module towards him and remove it from the steering wheel mounting mount.
   Removing the airbag module
4. Now we disconnect the “plus wire” of the sound signal.
   Removing the plus terminal from the horn
5. In the same way, we perform the operation with the “negative wire” to turn off the sound signal.
   Removing the negative terminal of the horn
6. Using a screwdriver, pry up the wire retainer and then unclip it.
   Removing the wire clamp
7. Now you can completely dismantle the pillow.
   We remove the wires from the seat
8. Installation is carried out in reverse order.

The nuances of replacement and what should be prevented

As with any car repair for the Lada Granta, when replacing the airbag and steering wheel, there are nuances that need to be taken into account. So, what is worth considering when performing dismantling work:

• Before you begin removing the airbag, it is imperative to disable the control module. If this is not done, then the probability of the airbag triggering when turned off is 99%.
• When the power is turned off, you need to wait until the activator capacitor discharges. The manufacturer recommends doing this after 1 minute, but as practice shows, it may take up to 3-4 minutes, so you should wait 5 minutes.
• Never allow water, oil or other liquid materials to come into contact with the cushion module.
• When installing the airbag, you should be outside the triggering area.
• After installing the airbag, you should turn on the ignition by reaching under the steering column.

Compliance with all the listed nuances will protect against airbag deployment and harm to a person, since in practice there have been cases when neglect of safety precautions became fatal for car service workers.

Technological process for replacing a steering wheel

After the airbag is removed, you can begin to remove the steering wheel. So, let's consider the technological process:

1. Using a marker or other available means, we make marks on the steering shaft and wheel. This is necessary in order to return the steering wheel to its previous position.
   General view of the steering wheel without an airbag

   Use a marker or other method to mark the steering wheel position

2. To secure the slip ring, insert a stopper.
3. Using a 24mm socket with an extension, unscrew the nut that holds the steering wheel.
4. With light blows from the left and right on the rim of the steering wheel from the side of the instrument panel, we knock it out of the slots.
   Hit the steering wheel to knock it off the splines
5. Now you can completely remove the steering wheel.

If you need to change the position of the steering wheel, then you should align the wheels straight and put the steering wheel on the splines. We drive a few meters and look, if everything is satisfactory, then we assemble it in the reverse order, if not, we remove the steering wheel and set it as needed.

Purpose and operating principle of SNPB

The airbag system is an additional means of protecting the driver wearing a seat belt and is designed to reduce the severity of his injury during frontal (±30 degrees) vehicle collisions in traffic accidents. SNAP is triggered depending on the force of the vehicle’s collision with various obstacles. In case of normal activation in an emergency situation, the SNAP is launched regardless of the state of the driver's seat belt fastening. Therefore, the use of a seat belt by the driver is a prerequisite for the effective operation of the air safety system.

The airbag system begins to function after the ignition is turned on and is controlled by an electronic unit (BUSNPB) with a self-diagnosis function. The system is activated by submitting an electrical signal from the BUSNPB to the airbag module.

If the airbag is activated, the upper part of the cover of the facing module of the airbag, when the airbag is filled with gas, breaks in structurally defined places and opens into two or three parts. Through the resulting opening, the gas-filled airbag bag deploys in front of the steering wheel or instrument panel. The filling time of the pillow is about 30-40 ms. After the airbag inflates due to excess pressure, the gas escapes through special holes located in the rear of the airbag bag, thereby preventing the driver or passenger from colliding with parts of the vehicle's interior and at the same time softening the severity of the impact of their head and chest.

SNPB device

The LADA 2190 car in the “Norma” configuration is equipped with a single-channel SNPB, which includes:

• gas generator module (MNPBV) (part 21910-8232010-00);
• airbag system control unit (part 21900-3824010-00);
• connector with rotating device (part 21700-3709315-00);
• steering wheel (part 21910-3402018-00).

Airbag system:

1. driver airbag module;
2. installation location of the SNPB control unit.

The gas generator module (MNPBV) consists of a gas generator 1, a housing 7 with an inflatable cushion folded in it, a facing cover 9, a sound signal switch and fasteners.

Gas generator module (rear view):

1. gas generator;
2. hooks for fixing MNPBB;
3. horn switch contacts;
4. hooks for fixing MNPBB;
5. location of the identification label;
6. gas generator igniter connector;
7. a body with an inflatable cushion folded in it;
8. hooks for positioning MNPBV;
9. facing cover.

The gas generator produces gas inside the module to inflate the airbag. The pyrotechnic substance located in the gas generator is ignited by a fuse-igniter mounted in the gas generator housing. There are two main types of gas generators. A pyrotechnic gas generator consists of a housing filled with a solid pyrotechnic substance and an igniter. In it, gas is produced when a pyrotechnic substance is burned. Used in the driver airbag module. A hybrid gas generator consists of a housing filled with compressed inert gas and a pyrotechnic substance, and an igniter. Used in the passenger airbag module. An igniter is a device with electrical resistance and a pyrotechnic substance. After receiving an electrical signal from the BUSNPB, the electrical resistance heats up and ignites the pyrotechnic substance of the igniter, followed by ignition of the bulk of the pyrotechnic substance of the gas generator.

An airbag is a bag made of synthetic material, built into the module body, which is filled with gas under pressure when the module is activated. The airbag is folded in a special way and closed with a facing cover.

The facing cover is a part that covers the airbag and ruptures when the airbag is filled with gas along the structural seam located on the back side of the cover.

Location of BUSNPB:

Principle of operation

The security unit was developed in the middle of the last century. With the introduction of electronics, it has undergone some changes, but the principle of operation has remained virtually unchanged. Automakers do not adhere to any standards; moreover, many of them use their own developments.

At first glance, this appears to imply a narrow specification of the constituent parts. In fact, everything is just the opposite. Main components of the block:

• a set of sensors;
• airbags;
• SRS unit;
• wiring;
• lamp on the instrument panel;
• squib;
• belt tensioners.

The general principle has remained unchanged for many years. And this is what he looks like.

1. When an impact occurs, sensors are activated - there can be up to 10 or even 15 of them. They transmit information to the SRS unit about the location and force of the impact.
2. The electronic unit processes this information. Taking into account the side of the impact and the number of passengers, it sends a signal to activate the airbag and belt.
3. The squib fires and the airbag covers are knocked out.
4. Bleeding air through a special valve or hole.

In addition to the points listed above, it is necessary to clarify one point. When the airbags deploy, Crash Data is recorded in the electronic unit. After this it stops functioning.

What to do after the airbag is triggered?

It is worth knowing that restoring airbags without involving service station specialists is a dangerous undertaking.

And the problem is not even that in the event of a collision the airbags are less likely to open. It's worse if they work spontaneously.

To avoid problems, you should contact an official dealer, who will adjust the system and replace faulty components.

When servicing yourself, there are a number of points to consider:

In some cars, the airbag and squib are one unit that is purchased as a kit. This is done at a disassembly site or in a store (the first option is cheaper, but the risk of the product not being opened in an accident increases). There are also companies that do not change the airbag, but supply it with a whole squib (such a restoration should be avoided).

In addition to the airbags, in 60% of cases the control unit also has to be replaced. If you're lucky, flashing the firmware will suffice. This is explained by the fact that in the event of a collision, information about the operation of the system is recorded in memory. Therefore, one replacement is not enough - the device will not work. The solution lies only in reflashing.

In some cases, entire seat belt pretensioners are installed - units that compensate for stretching and tighten the belt during an accident.

The final repair cycle is the restoration (replacement) of the airbag covers (often included). The problem with many cars is the lack of such covers, which forces the car owner to change the panel or repair the old one using dermantine, leather, or by soldering damaged areas. Such events are theoretically acceptable. But will you be sure that in the event of an accident the cover will allow the airbag to deploy?

When repairing an airbag, the following points are taken into account:

1. Removing the negative terminal from the battery is mandatory, after which you should wait until the autonomous power source discharges (7-10 minutes);
2. The airbag is positioned with the body facing towards itself.

Often, car enthusiasts do not repair the airbag and limit themselves to restoring the body. In this case, the light bulb on the dashboard is removed or a “fake” is installed instead of a pillow.

This approach is dangerous. It is better to contact an official dealer and restore the system.

As for selling a car with a deployed airbag, this is real, but the new owner should be aware of the problem.

If you repair the panel and turn off the “lamp,” the buyer is unlikely to notice anything without diagnostics, but in the first accident, his death falls on the conscience of the seller.

How to Remove a Passenger Airbag on a Grant

Lada Grant Space ›Logbook› front passenger airbag or crickets again!

In fact, colleagues, the question is in the title, but I will repeat: I was making noise, I was enjoying the silence, and suddenly, just recently, I received a cricket with some kind of ironic sound ... the sound comes from in front, but it is felt somewhere nearby passenger airbag. I removed the front panel, which still needs to be done for our client, I glued Madeleine, the carriage was firmly attached, in general, the panel with sound

Source: https://top-geer.ru/kak-snjat-podushku-bezopasnosti-passazhira-na/

Why does the Airbag indicator light up on the instrument panel?

If the airbag light comes on, this means that there is a failure somewhere, and the problem may affect not only the airbags themselves, but also any other element of the on-board safety system.

If there are no breakdowns, when you turn on the ignition, the airbag lamp lights up and flashes six times. If everything is normal with the system and it is working properly, the indicator will go out on its own after that until the next start of the engine. If there are problems, it stays on. The system begins self-diagnosis, detects a fault code and stores it in memory.

After the first testing, after a short period of time the system tests its elements again. If the breakdown was determined incorrectly or the signs of the malfunction disappeared, the diagnostic module erases the previously recorded error code, the lamp goes out and the machine operates in normal mode. The exception is cases where critical breakdowns are detected - the system stores their codes in long-term memory and does not erase them.