How to Replace the Main Wiring Harness in a Car What to Look for in a Car Main Wiring Harness Replacement

In automobile application, the hidden danger of wiring harness fault is highly hidden, but the advantage of fault harm is great, especially the overheating of wiring harness and short-circuit fault of wiring harness, which can easily lead to fire. It is an important task in automobile maintenance to find the hidden trouble of wiring harness in a timely, quick and accurate manner, reliably repair the faulty wiring harness or correctly replace the wiring harness. Next, this article will focus on how to replace the main wiring harness of the automobile and what problems need to be paid attention to when replacing the main wiring harness of the automobile. What are the problems? Let's take a look in the article together!

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1. How to replace the main wire harness of the automobile. For the failure of aging, serious damage, short circuit of the internal wire or short circuit of the internal wire, the wire harness usually needs to be replaced. So how to replace the main wire harness of the automobile? 1. Prepare wiring harness disassembly and assembly tools. 2. Disassemble the battery of the faulty vehicle. 3. Disconnect the connector of the electrical equipment connected to the wiring harness. 4. Keep work records throughout the process. 5. Loosen the wiring harness and fix it. 6. Remove the old wiring harness and assemble the new wiring harness.

2. What are the issues that need to be paid attention to when replacing the main wire harness of the car? 1. The type of the new car wiring harness should be the same as the type of the original model. The wire terminals and wires are firmly connected. You can pull each connector and wire by hand to see if they are loose, falling off and other phenomena. 2. Compare the new car wiring harness with the original car wiring harness. For example, the standards of the car wiring harness, wire terminal connectors, wire colors, etc. should be fundamentally the same. If there is any doubt, you can use the wiring harness detector to test it, and it can only be replaced if the wiring harness of the car is in good condition. 3. The wiring harness should be laid according to the specified position and direction, and fixed firmly with circlips, trip nails or special wire clamps at the appropriate position to avoid loosening and wearing. 4. Don't pull it too tightly, especially at the corner. When bypassing acute angles or passing through holes or holes, use special rubber or sleeve protection; Each joint must be firmly connected and in good contact. 5. Wiring harness quality inspection before replacing the wiring harness. In order to ensure the safety and reliability of the wiring harness, it must be strictly controlled before use, and it should be certified and inspected. If defects are found, it must not be used to prevent the harm caused by unqualified products. If there are conditions, it is best to use instruments to check. 6. Check the correctness of the new wiring harness connection. Whether the connection between the wire harness connector and the electrical equipment is correct must be confirmed first, and the positive and negative poles of the battery are connected correctly.

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