Sealed 1 way Automotive Electrical Connectors Car plug replace for 1J0 973 701A

Permutation

Before the permutation of wiring harness, its drawing ought to be laid out first, the wiring harness drawing is different from circuit principle diagram. The later reflects relations between various electrical parts, not to reflect how the parts are connected to each other, and is not influenced by size, shape of electrical components and their distance from each other. While wiring harness drawing must take the above factors into consideration, and reflect how electrical parts are connected to each other.

After cable harness board is made by technicians in wiring harness factory according to wiring harness drawing, workers start transversal and winding displacement according to provisions of cable board. Main wiring harness of automobile are normally divided into motor (ignition, EFI, power generation, starting), meter, lighting, air conditioning, auxiliary electrical appliances, etc., there are main and branch wiring harness. One automobile main wiring harness is with several branch wiring harness, just like tree stem and branch. Automobile main wiring harness usually takes dashboard as the core part, extending from the front to the back. Due to reasons like length relationship or convenient assembly, some wiring harness for automobile are divided into headstock wiring harness (including meter, engine, front light assembly, air conditioner, storage battery) and tailstock wiring harness (tail lamp assembly, license plate lamp, trunk lamp), top wiring harness (door, ceiling lamp, acoustic horn), etc. Terminals of the wiring harness will be labeled with symbolic numbers and letters to indicate the connection objects of conductors; when operators see the labels, they are able to correctly connect to corresponding electric wires and electric devices, which also help in repair or wiring harness change. Meanwhile, the wire colors are divided into monochrome line and double color line, the use of color is also provided, normally according to what is specified by the automobile enterprise. China's industry standard is only to specify main color, for example, black alone is for earth wire and red alone is for power line, which cannot be obscured.