Wire harness functions, terms and three-dimensional data The wire harness is the carrier for electrical and signal control and transmission of the car, and the wire harness controls the main electrical and electronic functions of the car. An example of 3D data for an automotive wiring harness is shown in Figure Functions include: ●Distribute power to electrical equipment such as light bulbs, motors, etc. in a reasonable and safe form; ● Transmit and feedback signals. Different models and manufacturers will vary, which is related to the requirements of the final assembly process, the configuration level and the general layout. Distribution map of car wiring harness

The electrical components connected to each split harness can be determined according to the configuration of the vehicle electrical system and the arrangement position of the electrical components, and there are differences. The whole vehicle can be divided into three areas according to the temperature and humidity. This is also the basis for selecting the wiring harness protection method and the selection of components when designing the wiring harness. Different areas will have different protection methods and waterproof grades.