What to do if the airbag light is on and other car failure phenomena

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.

Airbags are also related to some small actions of our car owners, some car owners like to modify the interior decoration of the car, which will affect the normal connection of the sensor.

, which in turn affects the normal deployment of the airbag.

When this happens in a car, it means that the airbag may be malfunctioning. Then you should go to the 4S shop for maintenance as soon as possible. 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.

When the ignition is turned on, it lights up for about 6 seconds and then goes off, which is normal. Attached: The reason why the car airbag light is on:

1. The line falls off or the contact is poor: from the seat".

Normal phenomenon: engine self-test, the indicator light will be on when the car is on, but it will be extinguished when the self-test is over.

False fault: If the battery has a serious power loss, the airbag will feedback the signal that the voltage of a certain airbag is low, and a fault code will be generated, which can be cleared;

True faults: such as airbag failure, airbag hairspring failure, collision sensor failure, loose airbag plug, line break, etc., you need to read the fault with a diagnostic instrument in time ** according to the fault ** find the fault point and eliminate it, it is recommended to go to the 4S shop to check.

First, find out the reason why the car airbag failure light is on, and then take solutions according to the cause.

The solution to the cause of such failures is to unplug the airbag plug and clean up the dust or fix the pins, and then plug it back in to clear the fault code. If the fault lamp is still on, you need to replace the corresponding wiring harness and connector.

The second is caused by the damage of the airbag itself, first use the 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 board is damaged or the airbag computer is connected to the iron and power supply, and the damaged airbag computer can be repaired or replaced; 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 virtual wiring harness to solve it.

It's best to call ** to the 4S store and ask how to deal with it, maybe the pressure is not enough? It's better to check it, after all, they are professional, and you can rest assured that you have checked and dealt with it.

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 the circuit, we know the problem of the circuit, there are all kinds of conditions, and see if it may be connected abnormally. It is commonly used to use an inspector to detect the fault problem, whether the line is smooth, such as the signal line voltage is normal, and measure whether there are signs of open circuit in the tie wire. See whether it can enter its regulating unit, test and detect one by one, if it is found that basically can not enter, in unplugging the computer plug of the relevant component, is it caused by its signal data line being interfered with;

2. The reason for the plug problem of the airbag light I think that in many cases, it is only the plug that is connected that is loose. This may be due to accidental encounters, but people often fail to pay attention to this situation. When the plug is loose, as long as the plug is found under the seat in the back row and press it tightly, it is fine;

3. The reason for the sensor and data failure of the airbag light If there is a sensor failure problem and the data reading is not correct, at this time, we should strictly follow the repair hand test of various car models and styles and pay attention to something, and implement professional maintenance and maintenance, which should be implemented under the operation of professionals at this time. At the same time, the airbag is also linked to the usual small response of our car owners, 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.

In most cases, the airbag failure light is on because there is an abnormality in the circuit, and the warranty can go to the 4S store to replace the assembly parts.

Many car owners see the airbag failure light on the dashboard of the car, but they don't know the specific cause of the failure, so what happens when the airbag failure light turns on?

1. The airbag is composed of sensors, micro source processors, electronic control cleaning unit airbag modules and other components, if the airbag fault light is on, it is likely that one of the components has a problem, at this time, the car owner will go to the 4S shop in time to check and clear the fault with a special diagnostic instrument, and wait until the fault is repaired, the airbag fault light will not be lit up again.

2. It is also possible that a false fault occurs, resulting in the flashing of the airbag light, such as the loss of the car battery or other electrical equipment, which will also cause the feedback voltage of the airbag to be affected, resulting in a fault code to make the fault light flash, at this time the car mainly finds a place to pull over, turn off the engine and unplug the negative pole of the power supply, and then connect it after 10 minutes, so that the engine completes the vehicle self-inspection, so that the airbag fault light will go out.

The failure of the airbag mold is mostly a problem with the wiring harness, and one needs to check the plug under the main and passenger seats, which is easy to see the yellow. There are also behind the glove box, as well as above the pedals under the steering wheel.

At present, the airbag of the car has become a very popular safety device, generally when the car starts, the airbag fault light will be on, and it will automatically go off after a period of time, if the car airbag fault light has been on, this time may be some fault of the airbag system. So how do you eliminate it? Socks.

1. If it is said that there is a problem with the route of the car airbag, so that the airbag fault light is on, at this time, it is often the airbag system that saves the fault code in the computer and contains space, at this time the owner can go to the old and 4S shop to eliminate the fault code.

2. If the relevant parts inside the airbag system are damaged, or the internal program of the airbag itself is faulty, it is recommended that the owner go to the auto repair shop or 4S shop for replacement, because the airbag system involves a lot of professional knowledge, and it is difficult for the owner to replace it by himself.

3. After the airbag light is on, you can choose to use 431 or Dao system to clear it. If it is still bright after clearing, then there may be a problem with the sensor or the line.

There are many reasons why the airbag light is on, such as damaged airbags, damaged crash sensors, faulty wiring, damaged seat belt ignition circuits, etc. The specific cause must be detected by the diagnosticator, and then the specific fault location can be judged according to the faulty code readout. There are three scenarios that can cause the airbag light to light up:

1.During the ignition self-test, within 3 seconds of the ignition switch turned on or the engine started. The automotive ECU automatically detects the usage status of the vehicle system and reminds the airbag to be in normal working condition.

Don't mistake it for a breakdown, fix it. 2.False failures, which are relatively common failures, are rarely used because airbags are rarely used, and mechanical failures are rare.

It is due to the chaotic circuit or the installation of high-quality products outside, which leads to the confusion of ECU information. This kind of problem only needs to be cleared again. 3.

Real mistakes. There are a number of reasons for this failure. Most of the sensors are old or short-circuited, and the safety system cannot operate normally.

Just go to the repair shop and fix it.

If the car airbag failure light is on, it means that there is a problem with the car airbag system, which is related to safety, and it is recommended to repair it as soon as possible.