What happens when the airbag light is on?

Normal self-test, if it is always on, there is a problem.

An electronic control of safety airbag airbag system is a passive safety (see Automotive Safety Performance) protection system that works in conjunction with seat belts to provide effective crash protection for occupants. In the event of a car collision, car airbags can reduce the rate of head injuries by 25% and the rate of facial injuries by about 8 0%.

Electronic airbags are mainly composed of airbag sensors, anti-collision airbags and electronic control devices. The driver's side crash avoidance airbag is installed in the steering wheel; Occupant-side crash avoidance airbag devices are typically mounted on the instrument panel. The airbag sensor is installed on the left, right and middle of the cab partition; The airbag sensor and airbag system in the middle are mounted with electronic controls.

Airbag components are mainly composed of airbags, inflators, and igniters. For example, the electronic control device is used for data acquisition and data processing, diagnosing the reliability of the airbag, ensuring that when the preset value is reached, the ignition signal is sent out in time, and the ignition is timed to ensure that the driving gas generator has a large enough driving current.

When a collision occurs while the car is driving, the airbag sensor first receives the impact signal, and as long as the specified strength is reached, the sensor will produce action and send a signal to the electronic controller. After receiving the signal, the electronic controller compares it with its original stored signal, and if the airbag condition is reached, the driving circuit sends a starting signal to the inflator in the airbag assembly. After receiving the signal, the inflator ignites the combustible gas generator to produce a large amount of gas, which enters the airbag after filtering and cooling, so that the airbag breaks through the liner quickly in a very short time, forms an elastic air cushion in the front of the driver or occupant, and leaks and contracts in time to absorb the impact energy, so as to effectively protect the head and chest of the human body, so as to avoid injury or reduce the degree of injury.

It could be because the airbag is a little malfunctioning.

The airbag light is on to indicate that there is a fault and needs to be repaired.

It means that he has a fault, so go to repair it in time.

If there is a breakdown, go to the shop for repair as soon as possible.

The accident caused the connection failure of the airbag wiring harness, which needs to be checked and replaced.

If there is a problem with the airbag, go to the 4S shop for maintenance in time.

If it stays on, you'll have to go to the shop for repairs.

The connection of the airbag wiring harness is faulty, which needs to be troubled and replaced.

Remind you that you need to pay attention to maintenance, and go to the 4S shop for repair as soon as possible.

The main reason is likely to be that the airbag has a leakage or leakage, which is very dangerous at this time, don't take it lightly, you should immediately check whether there is a lot of danger in the airbag of the car.

It is very likely that there is a certain fault in the airbag, so it must be checked in time and solve the problem.

It may be because your airbag has a certain fault, the plug of the airbag is loose, and some parts are loose, so there will be such a situation.

Various signal indicators will be displayed on the instrument panel, what is the reason when the airbag failure light is on?

1. The fault of the line related to the airbag system with Honghuai causes the fault light to light up, which is mostly caused by the virtual connection of the relevant line plug, which may be caused by the fact that the main pilot and co-pilot's seats are often moved, and the plug is connected or loosened for a long time.

2. It may be a failure caused by a problem with the relevant sensor or the airbag itself, such as a problem with the pre-tensioning sensor of the main driver and co-pilot's airbag and seat belt base, which will light up the airbag fault light. If it is a related airbag failure or a fault with excessive resistance, then a resistor needs to be installed at the location of the overhaul airbag to solve the problem.

3. It may also be the failure of the airbag computer or the collision sensor, which is generally caused by the failure of the airbag or the computer or the fact that the vehicle has had a water ingress experience. If the damage to the airbag computer is minor, it can be repaired, and if it is particularly severe, the airbag can only be replaced.

An electronic control of safety airbag airbag system is a passive safety (see Automotive Safety Performance) protection system that works in conjunction with seat belts to provide effective crash protection for occupants. In the event of a car collision, car airbags can reduce the rate of head injuries by 25% to the face.

The injury rate is reduced by about 8 0%.

The reason why the airbag light is on.

1. The circuit problem of the reason why the airbag light is on.

When we talk about circuits, we know the problem with the circuit, there are all kinds of situations, see if it might be connected abnormally. It is commonly used to use a detector to check the fault, whether the line is smooth, such as the signal line voltage is normal, and measure whether there are signs of breaking the iron wire. See if you can enter its control unit, test and check one by one, such as hair.

Now it is impossible to enter, and then unplug the computer of the relevant components, whether it is caused by interference with its signal data cable.

Check whether the control computer of the airbag can work normally, enter the airbag, the computer inquires about the fault and finds that it is a permanent fault, and the steering wheel is replaced and eliminated.

Except. If you still find that you can't enter, this phenomenon still exists, at this time, you can check whether its power supply line can be energized.

This is the reason why the detector cannot detect it due to poor tie-up. Check the two plugs of the splitter on the relay box, which is the airbag signal line.

Turn the streets. Unplug one of the plugs to detect it in the control unit if found to be normal.

2. The reason for the airbag light is the plug problem.

In fact, many times, it is just that the connected plug appears loose. This may be due to people accidentally touching it, but people often don't notice it. While.

When the plug is loose, you just need to find the plug under the seat in the back row and press it tightly.

3. The sensor and data failure of the airbag light is the reason for it.

If there is a sensor failure and data reading error, it should be strictly in accordance with the maintenance manual test and precautions of various car models and styles, and carry out professional maintenance and maintenance.

At this time, it should be carried out under the operation of professionals.

At the same time, the airbag is also related to some small actions of our car owners, and some car owners like to modify the interior decoration of the car, which will affect the normal connection of the sensor, and then affect the normal deployment of the airbag.

Hello The airbag light is faulty and the light is on:

1. Instrument self-test.

In the short 2113 time of entering the car, the ignition time, the instrument will be automatically detected, and the 5261 airbag light will automatically go out after the automatic detection is completed, which will be about 5 seconds, which is a normal phenomenon. If the airbag light is still on 4102 for a long time after the self-test, it can be judged that there is really a fault.

2. False failure.

If the battery loses power, it will also cause the airbag 1653 light to turn on. In addition, the airbag will also feedback the low air pressure signal of a certain version of the airbag to generate a fault code, which only needs to be cleared at this time.

3. True Causes.

If the above two reasons are ruled out, then it is possible that the line is faulty and should be repaired in time. The cause of this failure may be the failure of the airbag, collision sensor, airbag hairspring, etc.

As an important measure of the car, airbags greatly ensure the safety of passengers. Reasons why a car's airbag light is on: The airbag indicator indicates to the driver the condition of the system.

The indicator is controlled by the Airbag System Control Module (ACM), commonly known as the Airbag Control Computer. When the ignition key is ignited, the ignition and start signals are received by the ACM module. When the ignition switch is turned on (hit to the ON position), the airbag indicator should be.

First, the airbag wiring harness plug is caused by the false connection, which is because the vehicle will produce a part of the vibration during driving, or the plug connector is falsely connected due to the cover of dust. When the wiring harness is not in good contact, the service gauge lights up the airbag light to warn and store the corresponding fault** in the ECU, such as too high or too low resistance. Workaround:

Simply unplugging the airbag and cleaning it up for dust or fixing the pins, and then plugging it back in to clear the fault code will solve the problem. If the fault lamp is still on, you need to replace the corresponding wiring harness and connector.

Second, caused by the damage of the airbag itself, they belong to one of the most important parts of the airbag system, if they are damaged internally, it will inevitably cause the airbag warning light to stay on. Solution: First, use a fault diagnostic instrument to determine which airbag is damaged, then remove the plug of the airbag, connect an airbag resistor again, and finally clear the fault**.

If the fault light is no longer lit after being extinguished, the airbag is damaged, and it can be solved after replacing the parts.

Third, the airbag computer version is damaged or the airbag computer is connected to the iron and power supply of the airbag computer is delayed, the airbag computer board belongs to the control center of the entire airbag system, which is responsible for processing and calculating the information of the entire system, and issues the command to open the airbag at the critical moment of collision. If the internal solder joint of the computer version of the airbag is desoldered, it will inevitably cause the paralysis of the entire system and light up the fault light warning. Workaround:

For damaged airbag computers, you can choose to repair or replace them; For the case of virtual connection between power supply and grounding, you can first try to tighten the screws that fix the computer version, if not, you need to repair the relevant buried virtual wiring harness to solve it.

There will be many reasons for the airbag light to light up, such as circuit problems, electric mask pressure problems, and airbag itself problems.

If there is a faulty lamp on, of course, it is necessary to troubleshoot and eliminate the faulty lamp.

The airbag light is on, indicating that the airbag is faulty, it may be a wiring harness plug problem or the airbag itself is broken, and it should be checked.

Engine self-test:When the car is on, the indicator light will be on, but the end of the self-test will be extinguished, the big Voltson is about 5 seconds, this is a normal phenomenon, if it has not been extinguished, it means that there is a fault.

False Failures:After all, the airbag is a line control, and there are many reasons why the airbag light is on, for example, if the battery loss point is serious, the airbag will feedback the signal of low voltage of a certain airbag, and generate a fault code, which can be cleared.

Precautions for automotive airbags

Do not slap too hard where the airbag is installed. Because this can easily cause the airbag to pop out accidentally, the force of the airbag when it deploys can break the bridge of the nose of an adult man.

Get in the car, fasten your seatbelt, and adjust your sitting position. Make sure that there is at least 30 cm between the airbag and the body, so as to prevent the airbag from popping open and injuring yourself. Children are not allowed to sit in the co-pilot position.

Because once the airbag pops open, it is still very dangerous for the child.

1. The airbag light may be loose, and the plug under the passenger seat should be pressed in the rear. This could be due to a loose plug caused by a rear passenger accidentally kicking or a seat move. 2. If the shouting state is not involved in the loose problem of the slag head, it may be the failure of the airbag sensor or the data reading error, which can only be dealt with in the 4S store.

If Bi quietly helps, thank you!

The reason why the airbag light is on.

1. The line falls off or the contact is poor.

2. False fault, the battery has a serious power loss, and the airbag will feedback the signal of low voltage of a certain airbag, resulting in a failure.

3. Water intrudes into the airbag system, resulting in ineffective wiring of the alarm lamp or short circuit circuit.

If the airbag failure light is on during driving, you can continue to drive the vehicle smoothly to a nearby 4S shop or repair shop for maintenance.

Solutions for airbag failure lights on:

1. The indicator light will be on when the engine self-test, but it will be extinguished at the end of the limb self-test, about 5 seconds of pure origin, which is a normal phenomenon.

2. False failure. After all, the airbag is controlled by the line, and there are many reasons why the airbag light is on, for example, if the battery loss is serious, the airbag will feedback the signal of low voltage of a certain airbag, and the fault code will be generated by cracking, which can be cleared.

3. There are many fault reasons involved in the real failure, such as airbag failure, airbag hairspring failure, collision sensor failure, loose airbag plug, line breakage, etc., which need to be read by the diagnostic instrument in time to find the fault point and eliminate the fault according to the fault.

It is recommended that you go to the service station to check it out to see what is causing the problem and how to deal with it! If there is any problem with the car, you can go to the service station to check it.