Why is the car's airbag light constantly on?

[McEvan]

The following are situations where the airbag light may illuminate: 1. Instrument self-test When entering the car and starting the ignition, the instrument panel will perform an automatic self-check. After the self-check is completed, the airbag light will automatically turn off. This process usually takes about 5 seconds and is a normal phenomenon. If the airbag light remains on for a long time after the self-check, it can be determined that there is a genuine fault. 2. False fault If the car battery is low on power, it may also cause the airbag light to illuminate. Additionally, the airbag system may feedback a signal indicating low pressure in a certain airbag, generating a fault code. In this case, simply clearing the fault code will resolve the issue. 3. Genuine fault If the above two reasons are excluded, then it may be a wiring fault that requires timely repair. The cause of this fault could be related to the airbag itself, collision sensors, airbag clock spring, or other wiring-related issues.