The clock spring, also known as the spiral cable or coil, is an important component of the steering wheel assembly in a Perodua Alza or any other car. It is a coiled wire that connects the electrical systems in the steering wheel to the car's electrical system and allows for the movement of the steering wheel without breaking the electrical connections.

The clock spring is responsible for maintaining a connection between the steering wheel and the car's electrical systems, such as the airbag system, audio controls, and cruise control. As the steering wheel is turned, the clock spring uncoils and recoils to maintain the electrical connection between the two systems.