As is the case with any electronic malfunction, a malfunction in the airbag system is also checked. If a malfunction is found by the car, the airbag light on your dashboard will light up. Your airbags may then only partially work or not work at all. A malfunction can be easily solved by solving a bad contact in a plug, but in the worst case the airbag control unit is defective. To help you on the right track to find the cause of the airbag light, you can use an airbag fault code reader to locate the fault code.
The airbag system in your car
The airbag system is your car is an important system. It is important that this system functions properly. Unwanted malfunctions may occur. In the event of a malfunction, the airbag light on your dashboard will light up. To find out where there is an error in the system, your car needs a airbag diagnosis. The number of airbags there differs per car. For example, there are airbags in various places in the car, such as in the steering wheel and in the dashboard, the side airbags in the door or elsewhere in the car. In the event of a collision, an airbag controller ensures that all airbags present will do their job, provided there is no malfunction in the airbag system of the car. All airbags present are controlled and monitored via an airbag control unit. The airbag modules present are controlled via this control unit in the event of a collision. The moment you start the car, the control unit will check all connections and airbag components to determine whether the airbag system can function properly. In the event of a poor contact or other problem, the airbag light will remain on and an airbag system will not function at all, or at all.
The reason why your airbag warning light is on
The airbag light may remain on for several reasons. A common cause is poor contact due to a broken cable or a plug that makes poor contact. For example, it often happens that the plug under the seat makes poor contact, so that the signal from the sensor in the seat is not transmitted. This sometimes occurs after vacuuming under the seats. A belt tensioner that does not work or does not work properly can also be the cause. It also happens that the control unit of the airbags itself is broken. Replacing and programming a new airbag control unit is quite expensive. The airbag computer must be programmed again in the car.
Read codes in the airbag system
When the airbag light is on, you can read fault codes from your car with the appropriate OBD equipment. You may immediately find a fault code with the cause of the problem. However, it may also be that the cause is not immediately clear after reading the airbag codes. A defect in the belt tensioner will be clearly indicated with an error code, but a bad contact will not. If a malfunction is found during the diagnosis, you can initially delete the diagnstic trouble code and see whether it returns immediately afterwards or not. It can happen that it was a one-time malfunction, or one that suddenly occurs on a certain occasion.
Reset airbag module
Resetting an airbag module with an OBD2 scan tool or interface is one way to troubleshoot a vehicle's airbag system. This may be necessary if the airbag light on the dashboard of the car stays on, or if the airbags do not work as they should.
To reset the airbag module, you need an OBD2 scan tool or interface. This is a device that you plug into your car's OBD2 socket. Most modern vehicles have this socket, which is usually located under the steering wheel or near the accelerator pedal.
You then turn on the OBD2 scan tool or interface and follow the instructions on the screen or in the software. You will probably be able to select a specific reset option for the airbag module. This will "reset" the module and reconfigure the system.
It is important to remember that resetting the airbag module will not solve every problem with the system. If the airbag light is still on after resetting, or if the airbags still do not deploy, there may be another problem with the vehicle and you will need to troubleshoot and resolve it or consult a professional mechanic.
Resetting an airbag module is a simple task that you can often do yourself with the right OBD2 scan tool or interface. It can help troubleshoot the airbag system, but if problems persist it is advisable to seek professional advice from a car repair shop.