What are the symptoms of a faulty cabin airbag?

[XavierMarie]

The symptoms of a faulty cabin airbag include damage to the airbag clock spring. The manifestations of a damaged airbag clock spring are the illumination of the airbag warning light, the car horn not working, and the steering wheel audio control buttons becoming unresponsive. Introduction to the airbag clock spring: The airbag clock spring is a ring-shaped component that connects the airbag, ensuring that current can still reach the airbag while it rotates with the steering wheel, without the internal wires breaking due to frequent twisting from rotation. This ensures the airbag remains operational at all times. Methods to check for a faulty airbag clock spring: 1. If the horn does not sound: Unplug the horn connector and connect a test light. If pressing the steering wheel does not light the test light, check the fuse and relay. If there is no response when pressing the relay, remove the airbag and directly ground the horn button wire below the clock spring. 2. If the horn sounds: Ground the horn wire above the clock spring and use a multimeter to test the continuity of this wire.