Reasons Why the Airbag Light Stays On

1 Answers
Baker
07/30/25 10:26am
The reasons why the airbag light stays on are: Loose wiring or poor plug connection: One of the plugs in the airbag system may be disconnected or poorly connected. Check the connection status of all plugs (yellow plugs) and reconnect them. It is best to wrap a layer of black tape around the plug to ensure better fixation. Additionally, the negative terminal of the battery may be loose; simply tighten the screw. Sensor malfunction: The airbag connector, seat belt sensor, or airbag sensor may be faulty, requiring the replacement of related components. The driver-side side airbag sensor or the passenger-side side airbag sensor may also malfunction. ECU (computer board) malfunction: This requires replacing the airbag control unit, especially if the car has been involved in a collision before. After a collision where the airbag has deployed, fault codes are generally difficult to retrieve. This design ensures that after the airbag is triggered, a new airbag ECU must be replaced.
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