What is the function of the airbag clock spring?
2 Answers
Automotive airbag clock spring, referred to as automotive clock spring, is used to connect the main airbag (the airbag on the steering wheel) with the airbag wiring harness, essentially serving as a segment of wiring harness. Below is relevant information: 1. The automotive clock spring is installed inside the steering wheel, at the position where the horn is pressed. As the main airbag rotates with the steering wheel, the clock spring winds around the steering wheel and rotates accordingly. Therefore, when connecting the wiring harness, sufficient slack must be left; otherwise, it may be pulled and broken if insufficient. It should be placed in the middle position as much as possible to ensure it is not stretched to the breaking point when the steering wheel is turned to its limit. 2. Automotive safety is divided into active safety and passive safety. Active safety refers to the car's ability to avoid accidents, while passive safety refers to the car's ability to protect the driver in dangerous situations, mainly reflected in seat belts, impact-resistant body structures, and airbag protection systems, among others.
The clock spring, simply put, is that spring-like part under the steering wheel. Its main job is to let the steering wheel rotate freely without snapping the wires. After years of driving, I've come to realize how crucial it is—buttons on the steering wheel like the horn, volume controls, and most importantly, the airbag, all rely on the clock spring to maintain electrical connections. If it fails, your horn might not work, and the airbag might not deploy in an emergency, which is extremely dangerous. This component is ingeniously designed, capable of coiling and uncoiling thousands of times like a tape measure, but it's prone to wear over time. Common issues like squeaking sounds when turning or the airbag warning light coming on could be signs of a faulty clock spring. Replacing it during repairs typically costs a few hundred bucks—not too expensive, but don't delay. During routine checks, have a mechanic take a quick look to ensure driving safety.
