Automotive wiring harness connector, commonly known as plug, is an electronic component often used in automobile lines. The connector enables multiple branch lines to be drawn from the main line harness, and also functions as a fixed terminal. Automobile wiring harness is a component that connects automotive electronic and electrical components and makes them function, is the main body of the network of automotive circuits, mainly composed of copper plug-in parts (plugs, sockets) and plastic sheaths, wires, etc., plug-in parts and wires are installed in plastic sheaths after crimping, and wires are bundled with wiring harnesses and wrapped with tape. The role of the wire harness in the whole vehicle is to transmit and exchange the power signals and data signals of the electrical system to realize the functions and requirements of the electrical system.