What are the harness color codes? What is the functional purpose of the codes?

The harness color code is a system used to identify and identify the different wires in an electrical harness. These color codes are widely used in the fields of automobiles, electronic devices, aerospace, and the like. The function of wiring harness color coding is to enable engineers, technicians and service personnel to quickly and accurately identify and connect wires of different functions, thereby improving work efficiency, reducing error rates, and ensuring the reliability and safety of the circuit. Harness color codes generally follow international or industry standards and may vary from country to country or industry to industry. Here are some common wiring harness color codes and explanations of their functions: Black: Commonly used for the ground wire or negative wire, used for the ground or negative connection of the loop. Red: Commonly used for the positive wire, indicating the input of power or current. Blue: Commonly used for neutral, for the return path or neutral connection of the power supply. Green or green-yellow color: often used for grounding wire, used for safety grounding. White or gray: Commonly used in lighting circuits to transmit power or signals. Brown: Commonly used in power supplies or power cords to transmit high voltage or primary power. Orange: Commonly used in lamp or meter circuits. Yellow: Commonly used for low voltage signal lines, such as sensors or control lines. Pink: Usually used for auxiliary lines, such as warning or reminder devices. Purple: Commonly used for data lines or communication lines. The use of these color codes has the following main functions: Identification and classification: Harness color codes allow engineers or technicians to quickly identify and classify wires of different functions by color. This helps reduce the risk of incorrect connections and increases productivity. Troubleshooting: The harness color code allows service personnel to quickly identify the problem or issue. By checking the color code, you can quickly locate whether the wire is wired correctly, thereby reducing the time required to troubleshoot the problem. Safety and consistency: By using the harness color code, you can ensure the correct connection of the wires and reduce the risk of circuit failure and accidents. In addition, a consistent color code standard also contributes to compatibility and interoperability between products from different manufacturers or suppliers.

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