Automotive wiring harness short-circuit burned out when the four treatment methods and instructions

Automotive wiring harness in the use of a long time, there will occasionally be a short circuit or burn phenomenon, this situation needs to be dealt with immediately, especially burned, because the wiring harness burns very quickly, the treatment is very simple to deal with the entire electrical equipment are damaged. Today, Huicheng yuan editorial to tell us, encountered a short circuit or burned out of the automotive wiring harness, how to deal with?

First, the tool inspection method test light to check the concept of more suitable for checking the wire break shortcomings. The use of temporary test light method should pay attention to the power of the test light is not too large, in the check electronic manipulator control output terminal whether the output and whether the output to meet the output is particularly prudent, to prevent Zhuang so that the manipulator is overloaded and damaged. The best use of diode test light. Second, visual inspection method when a part of the automobile electrical system shortcomings, there will be smoke, sparks, noise, smell, high temperature and other abnormal phenomena. Through the human sensory organs of listening, touching, smelling, looking at the automotive wiring harness and electrical intuitive inspection, and then identify the address of the shortcomings of the part, and then greatly improve the speed of maintenance. For example, when the car line shortcomings, there will often be smoke, sparks, noise, smell, high temperature and other abnormal phenomena. Through visual inspection, can sensitively identify the address of the shortcomings of the part and the nature of the shortcomings. Third, the wire across the inspection method across the method that a wire will be suspected of having shortcomings in the line short, query the appearance of the pointer changes or electrical equipment, and then discerned the existence of the circuit breaks or poor contact shortcomings. Across the two points of the circuit refers to a wire will be connected to the two points of the operation, the potential difference between the two points of the circuit across the zero, not a short circuit. Fourth, the instrument appearance inspection method using generalized shortcomings diagnostic instrument, multimeter, not wave machine, current clamp and other instruments appearance to diagnose the car circuit shortcomings method. On the electronic control system sedan, generally use the generalization of shortcomings diagnostic instrument to find shortcomings code, to diagnose the vehicle shortcomings planning; and then the use of a multimeter, current clamp or not wave targeted inspection of the circuit voltage, resistance, current or waveform, diagnosis of the shortcomings of the wiring harness wire points. The above four methods can be done in the case of emergency reference, of course, it is best to find a professional repair personnel to help deal with. Automotive wiring harness internal structure is messy, intricate wires, generally no specialized knowledge is more difficult to deal with. I hope this article can help us, partners can move their fingers to collect.

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