Introduction to automotive wiring harness colors What is the connection method of automotive wiring harnesses

Automotive wiring harness realizes the physical connection of the circuit to the power supply and various electrical parts on the automobile. The wiring harness is distributed all over the vehicle. If the engine is compared to the heart of the vehicle, then the wiring harness is the neural network system of the vehicle. It is responsible for the information transmission between various electrical parts of the vehicle, which is very important. Then this article will bring the introduction of the color of the automobile wiring harness and what is the connection method of the automobile wiring harness. Let's take a look in the article together!

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1. Introduction to the color of automobile wiring harness Automobile wiring harness is composed of wires with different specifications and performances. With the increase of automobile electrical equipment, the number of wires is also increasing. In order to facilitate the identification and maintenance of automobile electrical equipment, the low-voltage wires in automobile circuits are usually composed of different colors, and are marked with color letter codes on the automobile electrical wiring diagram. The color codes of wires (represented by one or two letters) are usually marked on automobile circuit diagrams. The colors of wires on automobiles are generally different. There are two commonly used selection principles: single-color and two-color. Such as: red (R), black (B), white (W), green (G), yellow (Y), black white (BW), red yellow (RY). Among them, the former one of the two-color lines is the main color and the latter one is the auxiliary color.

2. What is the connection method of automotive wiring harness? Usually, there are three main connection methods between automotive wiring harness cables and connector terminals: welding, crimping and mechanical connection. 1. The welding method mainly adopts soldering connection, which is suitable for automotive wiring harness connection and assembly with small batches and small cable cross-sectional area. 2. The crimping method mainly uses the application of external force to the crimping die of corresponding specifications to combine the connector terminal with the cable contact surface. The connection is reliable and the service life is long. It is suitable for large-scale processing, but the crimping die is required to achieve connection assembly. 3. The mechanical connection method mainly uses fasteners to tightly fix the connector terminals and cables. The assembly is relatively complicated and is not suitable for mass production.

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