What is the function of the high tension lead in an ignition system?

The function of the high tension lead in an ignition system is to transmit electrical current. This component is critical as it carries the high-voltage electrical energy generated by the ignition coil to the spark plug. When the engine's ignition system is activated, the ignition coil produces a strong electrical charge, which is then delivered through the high tension lead to create a spark at the spark plug. This spark ignites the air-fuel mixture in the engine's combustion chamber, enabling the engine to operate. Thus, the high tension lead plays an essential role in ensuring that the ignition process occurs effectively for proper engine performance.