What Causes the Airbag Light to Illuminate in a Car?

[VonCooper]

The reasons for the airbag light illuminating in a car include: 1. Engine self-check: The indicator light will turn on when starting the car, but it will go off after the self-check is completed, typically within about 5 seconds. This is a normal phenomenon. If it remains on, it indicates a fault. 2. False fault: If the battery is severely depleted, the airbag system may send a signal indicating low voltage for a specific airbag, generating a fault code. In this case, simply clearing the code will resolve the issue. 3. Actual fault: There are numerous potential causes for this, such as an airbag malfunction, clock spring failure, crash sensor fault, loose airbag connector, or circuit breakage. It is necessary to promptly use a diagnostic tool to read the fault code, locate the fault point based on the code, and address the issue accordingly.