Depending on the configuration of LADA cars, the model may have one or more airbags. We'll talk about the design and troubleshooting of this passive safety system.
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What could be the reason! I think that the CABLE. the airbag started to light up, then the signal disappeared, so I wonder when installing the cable, in which direction should the wheels face straight or should they be turned so as not to break the cable?
I don’t know this, I’ve got a block
Tell me what resistance to put on the cushions, so to speak, I searched on the forums, they offer 2.2 KOhm, but they don’t indicate what power, I tried it and it didn’t work, thanks in advance.
I don’t know, my dealer replaced the control unit and the problem went away.
same problem, we ordered a new unit online, they put a resistor in place of the airbag, the buzzer went out for 3 months, then it came on again, when I opened the burner unit there were no burners and there were no shock sensors in it either, LAZA AUTO VAZA in a word, difficult to replace, difficult to service , but it’s screwed on like an airplane propeller, and the boys are complaining, nah, there’s no automatic in the configuration, tell me what and how to do? — I don’t want to put an airbag in the steering wheel. How can I flash it myself or disable it?
They suggested to me that let's turn off the unit and everything won't light up - this is at the dealer's office, they couldn't figure out why it was on, the signal was there, everything was ok. Then, after a complaint to AvtoVAZ, they replaced the control unit and everything became normal.
there was also a problem. changed after 2 weeks. it was in July.
oh yes!)) it looks like you fall under this too!) call your dealer and find out. (since you bought it in August)…
I know that I’m getting into trouble... They don’t have a diagnostic tool for grants, they said an update will come after the new year, we’ll call and see, there are no errors, changing the unit didn’t help, they don’t know what the reason is.
BY THE DAY, THERE WAS INFORMATION ON THE INTERNET THAT VAZ WILL BE WITHDRAWING GRANTS FOR BRAIN REFIRMING RELATED TO THE CAUSE OF A MALFUNCTION OF THE AIR BAG UNIT! AND ACCORDING TO THE PRODUCTION TIME OF MY CAR, I FALL UNDER THIS! SCRIPT!
Which ones will be recalled? May 2012))))
I got the same error on a run of 150 km! I called the dealer, he shouted, come. Let’s check... in short... arrived. Connected to the computer... he writes ERROR! THE WARRANTY MAN HAS REMOVED THE GLOBE. He fiddled with something... erased the error... and I asked him, what was the problem? he told me. I DISCONNECTED AND CONNECTED THE CONNECTOR OF THE PILLOWS... LIKE THE FACTORY CONNECTED THEM BADLY... MAYBE...)) .after that there were no problems! The mileage is now almost 2 thousand km! so go to the dealer and let them make one same procedure...maybe it will help!)))
Tool:
- Knob attachment 10 mm
- Driver for socket attachment
- Torque wrench
Parts and consumables:
- Airbag control unit (BUSNPB)
1. Place the vehicle in the workplace and apply the parking brake. Turn off the ignition.
2. Disconnect the negative cable terminal from the battery.
Warning:
The BUSNPB scheme has an emergency supply of electricity. In order to discharge the capacitors after turning off the ignition, you must wait at least 10 seconds before performing work.
Removing the SNPB control unit
3. Remove the center console floor trim as described here.
4. Disconnect the block (1) from the SNAP control unit (2).
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:
- By the nature of the action - with one and two-stage operation;
- In shape - in the form of a tube or dome;
- 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.
Reason for decontamination
Despite the high level of technology used in the production of airbags, the likelihood of serious injury from the protection element remains high. Not all vehicles are equipped with staged deployment airbags. Therefore, the danger of being hit at a speed of three hundred kilometers per hour remains.
If the specified safety measures are not followed, a head injury is the mildest option of all possible consequences.
Technologies that involve the installation of seat belt monitoring sensors partially solve the problem. The seat belt is not fastened and the airbag turns off. Acceptable unless there is an emergency. Otherwise, the chances of improving the death statistics increase significantly.
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).
The problem is that each manufacturer has classified information, which forces car enthusiasts to buy a new control unit for the airbag. In addition, airbags are often tied to the VIN number or model of the vehicle.
If you go to a service station, the cost of restoration work will hit your wallet.
Experienced car enthusiasts copy a security system dump and write it to a remote memory device.
Data is stored until sold. If the car is involved in an accident, it is easier for a specialist to restore the system.
In this situation, a microcircuit and a programmer are purchased, after which the device is flashed. The average cost for such work is from 5-7 thousand rubles.
SRS unit (BUSNPB) TAKATA - logbook Lada Granta Sport TMS 2013 on DRIVE2
Hello, comrades! We need information from the owners of Prior and Grant standard and norm, according to the order 89-12 of December 26, 2012 about firmware firmware on BUSNPB, who drove around this problem. Somehow the beep of the buzzer when the seat belt was not fastened disappeared, I didn’t worry, but then I decided to get confused and Dig deeper and it’s great. Symptoms are the same as in the article:
No self-diagnosis from the belt and airbags when the ignition is turned on
The light bulbs are all working
Belt sensor connected
The unit itself is located under the cigarette lighter
Norm Scheme
Airbag system control unit
I went to the dealer in Khimki, they said my car was not on the list for recall, and especially not under warranty - walk away.
Just counting errors - 600 rubles (diagnostics). The unit now costs 4200 rubles + labor 1600. I won’t change it myself, because it needs to be activated.
What do you say? As I understand it, at my expense in any case? Will the airbags open if something happens? And is it worth paying money for a diagnostician, tinkering with the wiring, or, given these signs, a mower, or even more - down the drain?
Update I found my car on the list for removal. As a dealer, I didn’t find xz.21900-016-41 08/31/2012 8:55 009579 JSC Avtozavodskaya STO
Update2 I decided to flash the software from sw-02 to sw-03 from kuji and am waiting for a response from the factory regarding the current situation.
update3 The old block did not respond. I bought a block in Bryansk-Lada for 1900 (in Moscow 4200), they changed it, Egor activated it. On the old software block sw-02, on the new one sw-3. Now everything is fine, the belt squeaks.
Is it possible to drive without airbags?
Car enthusiasts often ask questions regarding the operation of the car if there are faulty (opened) airbags or a malfunction indicator has been activated.
If the icon lights up, it indicates that one of the sensors has failed. This means that the likelihood of the airbag not deploying in an accident is higher. The indicator also lights up when the device has already been activated and a “plug” is installed instead.
You are allowed to drive with such errors (the technical part of the car does not suffer). Another thing is that the level of security is falling. There remains a risk that the airbag will not fulfill its intended purpose.
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).
When repairing an airbag, the following points are taken into account:
- Removing the negative terminal from the battery is mandatory, after which you should wait until the autonomous power source discharges (7-10 minutes);
- The airbag is positioned with the body facing towards itself.
Results
If the airbag has deployed, operating the car or doing it yourself often leads to tragedy on the road.
To eliminate problems, you should contact an authorized dealer, who, after a complete diagnosis, will replace the failed elements.
Otherwise, there is no guarantee that the airbag will work in an accident and save lives.
Airbags are one of the effective components of a car's passive safety system. Its main task is to almost instantly reduce the speed of the person in the cabin. Thanks to this, during an accident you can avoid traumatic impacts and save the life of the driver or passenger.
What to do with worn seat belts?
The seat belt squib often deploys along with the airbag. There are two options here - turn to specialists or do the work yourself.
In the second case, the sequence is as follows:
- Move the front seat forward as far as possible;
- Unscrew the blind edge of the belt from the body part;
- Disassemble the lower edge of the rack trim (the mechanism is located there);
- Pick out the plug on the adjustment mechanism;
- Remove the rack trim to check the level of wear;
- Carefully unscrew the belt and push it away from the adjuster;
- Remove the device and discard the system connectors;
- Remove the cover and locking assembly;
- Under the steel plate there is a mechanism with a return spring. The latter, when the squib operates, is triggered, jumps out of its place and fixes the belt;
- Compress the springs and put everything back in place.
Shutdown algorithm using a key switch
For those who still decide to take a risk and switch the airbags to shutdown mode using a switch, the following recommendations will be useful.
Next, the parking brake is applied and the ignition is completely turned off. The key must be removed from the lock. The passenger side doors are opened and the shutdown switch is searched. The key inserted into the lock is turned counterclockwise until it reaches the off position. The passenger restraint system is disabled.
What to do if the car does not start after the airbag deploys?
On many car models (Lada Granta or Priora, Ford Focus 2, Opel Astra and others), the injectors turn off after the airbag is activated. This is done for safety and to prevent the car from catching fire.
To restore the supply of the fuel mixture, you should contact a specialist (it is unlikely that you can restore the supply of the hot mixture yourself).
Sometimes disconnecting the battery for 6-10 minutes (disconnecting the terminal) helps. In addition, a number of manufacturers install unlock buttons.
Rear seat overview. Adjustment
In the back of the Lada Granta Liftback it’s already cramped for three, but there’s plenty of space for two. The sofa is flat, without ergonomics. For tall passengers, long trips will be painful.
Adjustment of the sofa is not provided, unless you move up and down around the perimeter yourself. Don't forget about the restrictions on the back of the seat back and roof lining.
In order to increase safety and reduce the likelihood of injury to passengers, the rear row of seats is equipped with seat belts.
How to remove the error?
On numerous forums, car enthusiasts discuss how to remove the error after the airbags deploy. This is logical, because driving with a burning lamp is an unpleasant and dangerous pleasure.
When the indicator lights up, you should take the following measures:
- Check the operation of the airbag when starting the engine;
- Make diagnostics for errors and determine the code. It is often possible to do such work only at a service station;
- Change or repair the airbag;
- Update the system module.
There are cases when the light comes on due to insufficient contact or due to the absence of airbags dismantled after an accident.
Ideally, the clock spring, control unit, wiring, belts and airbag are replaced. As mentioned, costs are reduced when purchasing units from disassembly.
To temporarily “extinguish” the light bulb, it is possible to install a “plug” (a special resistance of 2.0 - 2.2 ohms).
- Disconnect the battery, install the control unit and clock spring. Instead of the airbag, an equivalent resistance of 2.2 Ohms is installed;
- Connect the battery and check whether the lamp flashes or not;
- Erase the crash date from the airbag control unit;
- Go to a service center to reset the error in the control unit using a scanner. If everything is correct, then the light will not light, that is, it lights up for a short time and goes out.
Unsolvable problems are another argument in favor of switching off
The activation of the airbag, which even the most brilliant engineer cannot prevent, can accidentally occur due to the fault of one of the many holes on the road, if the wheel falls into such a hole at speed. Also, the cause of the airbag firing may be a heavy object falling on the hood of the car, or shaking that began while overcoming an obstacle.
Considering the potential danger that airbags pose, especially when it comes to small children, the elderly, pregnant women, or people suffering from various musculoskeletal diseases, it is better to turn off the aggressive airbag. However, this can only be done if the driver fully accepts responsibility for passenger safety.
