Automotive wiring harness common faults and solutions

During the use of automotive wiring harnesses, some faults will inevitably occur, and many wiring harness engineers working in OEMs spend a lot of energy testing the wiring harnesses. This article will talk to you about Huichengyuan Wiring Harness. What are the common faults of automotive wiring harnesses? What caused the failure? What methods do we use to solve the faults?

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First of all, the common faults of automotive wiring harness include: poor contact of connectors, short circuit between wires, open circuit, overlap, etc. So what are the causes of these failures? 1. The service life of the wiring harness due to natural factors is too long, the wires are aging, the insulation layer is damaged, and the mechanical strength is not up to standard, resulting in short circuit, open circuit and tower building between circuits, and burning out the wiring harness. Many cases where electrical equipment fails to work normally are caused by poor contact. Many of the reasons are oxidation and deformation of the wiring harness end. 2. Equipment failure causes damage to the wiring harness. Failure of electrical equipment can easily cause damage to the wiring harness. Common failures include short circuit, open circuit, etc. 3. When assembling or repairing auto parts for subjective and human reasons, metal objects crush the wire harness and rupture the insulation layer of the wire harness; Improper position of wiring harness; The lead wires of electrical equipment are connected incorrectly; The positive and negative leads of the battery are connected reversely; When repairing the defective circuit, if the wires are connected or cut indiscriminately, it may affect the electrical equipment and even burn out the wiring harness.

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So how do we judge when we check the car circuit fault? Generally speaking, poor contact is the most common problem in line faults. In this case, it is necessary to use a multimeter to turn on the file to troubleshoot step by step to narrow the scope of the fault. Generally speaking, special attention needs to be paid to the place where the plug-in is connected. Poor contact caused by the abdication of the plug-in terminal is most likely to be missed installation and missed insertion. Electronic system circuit short circuit, electronic system fuse blown, etc. are common faults in automobiles. Finding the specific short-circuit location is the key to solving the fault. It is necessary to check the circuit device of the whole electronic system. This work is tedious, the workload is heavy, and it is necessary to be careful. After we find the problem, we should take timely measures to solve the failure to prevent the recurrence of the problem. First of all, it is necessary to make a comprehensive and accurate judgment on where wiring harnesses may appear. Under normal circumstances, automotive electronic systems support many functions, and the wiring harness of the system is more complex. An entire automotive wiring harness needs to be composed of many lines and related components. It is not easy to find a short-circuit point from such a huge and complex system. It is not only necessary to disassemble the instrument, interior, etc., but sometimes even peel off a section of the wiring harness for inspection.

Therefore, after solving the line fault, you must not ignore it. Huichengyuan Wiring Harness is here to warmly remind everyone that it is necessary to solve faults, but it is the most important thing to prevent such problems from happening again. Some friends will repeat the same fault problem many times, which not only consumes time and energy, but also consumes the life of materials. Therefore, preventing it before it happens is a compulsory course for everyone.

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