Arrange the wire harness according to the specific standards of the wire harness diagram.

Arrange the wire harness according to the specific standards of the wire harness diagram. Many friends think that the circuit diagram is not much different from the harness diagram. In fact, the two are very different. The circuit diagram does not reflect how the electrical components are connected to each other, and is not affected by the size and shape of the individual electrical components and the distance between them, but merely represents an image of the relationship between the electrical components. The harness diagram must take into account the size and shape of the individual electrical components and the distance between them, as well as how the electrical components are connected to each other. Therefore, the arrangement of the wire harness should be drawn in advance under the guidance of the wire harness diagram. First of all, the technician of the wire harness factory made the wire harness wire version according to the wire harness diagram. After confirming the correctness, the workers cut the wire according to the regulations of the cable plate. The main harness of the whole vehicle is generally divided into an engine harness, an instrument harness, an air conditioner harness, an illumination harness, an auxiliary electrical appliance, and the like, and has a main harness and a branch harness. The main vehicle harness is often centered on the instrument panel and extends front and rear. In addition, due to the length relationship or ease of assembly, some automotive wiring harnesses are divided into roof wiring harnesses (doors, ceiling lights, audio speakers), front wiring harnesses (including meters, engines, front lighting assemblies, air conditioners, batteries), tail harnesses (tail lights) Assembly, license plate lights, trunk lights, etc. Each end of the harness will be marked with a number and a letter to indicate the connection object of the wire. The operator sees that the mark can be properly connected to the corresponding wire and electrical device, which is especially useful when repairing or replacing the wire harness. A wide variety of car wiring harnesses are dazzling, and the arrangement of the harness is not a simple matter. Although there are differences in the wiring harness arrangement of various electrical equipments of automobiles, they all follow the general rules, as follows: Single-wire system; two power sources (batteries and generators) on the vehicle are connected in parallel, and can supply power to the electrical equipment separately. Each electrical equipment is also connected in parallel, usually equipped with safety devices and controlled by their respective switches.