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As the steering wheel turns, the clock spring retracts and expands inside its housing. Its purpose is to keep all of the components on the driver's airbag electrically connected. On some vehicles, the components include the airbag, horn, and any vehicle controls such as radio, cruise control, heat, and even a telephone.

Clock Spring Spiral Cables are a round shaped connector in a vehicle steering system. It allows the steering wheel to turn while keeping the electrical circuit between the wheel and the rest of the vehicle's electric system connected. This enables the horn, airbag, and other steering-wheel-mounted devices, such as audio controls and cruise control, to function regardless of steering wheel position.

Spiral cable is simply a coil of wires housed in a doughnut-shaped container that connects the airbag to the car's electronics. It connects electrical circuits in the steering column to steering wheel components such as steering wheel controls, a horn switch, and the airbag assembly. The spiral cable allows the steering wheel to rotate while still maintaining electrical connections to the steering wheel components.

A clock spring or clockspring is a spiral-wound special rotary electrical connector in vehicle steering systems that allows a vehicle's steering wheel to turn while maintaining an electrical connection between the steering wheel airbag and/or the vehicle's horn and other devices and the vehicle's electrical systems.