What are the common failures and causes of automotive wiring harnesses How should I maintain and care for my automotive wiring harness when using it?

The vast majority of wiring harness engineers working in OEMs spend a lot of energy on repairing cars, that is, checking whether there is any problem with the wiring harness. Common faults of automobile wiring harness include poor contact of connectors, short circuit, open circuit and overlap between wires, etc. The main reasons are natural factors, equipment failures, subjective and artificial aspects, etc. In order to reduce failures, maintenance and maintenance should be carried out in daily life, so how to maintain and maintain automobile wiring harness?

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1. Common faults and causes of automotive wiring harnesses Common automotive wiring harness faults include: poor contact of connectors, short circuit between wires, open circuit, overlap, etc. The main reasons for the failure of automobile wiring harness are as follows: 1. Natural factors: The wiring harness has a long service life, the wires are aging, the insulation layer is damaged, and the mechanical strength is not up to standard, resulting in short circuits, open circuits and towers between circuits. Burn 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 position of the lead wires of the electrical equipment is wrong; The positive and negative lead wires 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. 2. How to maintain and maintain automobile wiring harnesses when using them. Generally, riders who are good at automobile maintenance may know that automobile wiring harnesses need to be maintained regularly with wiring harness protective agent. Because spraying the wire harness protective agent on the wire harness is equivalent to adding a protective layer to the wire harness, which has the effects of moisture-proof and oxidation-proof. Moreover, the protective agent also has insulation, high voltage resistance and other properties, and regular use can also prevent the wire harness from cracking and aging. However, there are some matters to pay attention to when using wire harness protective agent. For example, it can't be used directly when the wire harness is not cleaned, so as to avoid the protective agent failing to play its role; The dose of each spraying should be appropriate. Too little will not form a protective film. Too much will easily affect the performance of the wiring harness, and it is a waste of resources. In short, the maintenance of automobile wiring harness is not only necessary, but also needs to be persisted for a long time. You can't fish for three days and dry the net for two days, nor can you be too frequent, otherwise it will easily lead to improper maintenance, which will lead to various automobile electrical equipment failures.

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