What color is the high-voltage line of Corolla hybrid electric vehicle?

It is orange or yellow because of its high working current and voltage.

Automobile high-voltage wire is a kind of wire with insulation device, which transmits electric energy through ignition coil and is used for spark plug ignition to make the engine do work. Its structure is not complicated, and a high-strength insulator is wrapped outside the internal metal wire through the production process. It can have good insulation and internal transmission and conduction functions at high and low temperatures.