Causes and detection methods of electronic wiring harness faults

During the operation of the electronic wiring harness, there are always problems due to various reasons. Common faults include poor connector contact, short circuit between wires, open circuit, iron and so on.

So, what are the reasons for the occurrence of electronic wiring harness problems?

1, natural aging or damage

Wire harness use time exceeds the use period, the insulation layer of the wire harness begins to slowly crack, the mechanical strength begins to decline, a long time will simply lead to short circuit between the wire and the wire, break, take iron and other problems.

2. Wire harness terminal oxidation

When the wiring harness terminal is completely oxidized, it may have been deformed, it will also cause poor wiring contact or short circuit, and then make the wiring harness faulty.

3. Electrical equipment is faulty

There is also a situation because the electrical equipment is overloaded, short-circuited, and then the wiring harness is faulty.

4. Human causes

The last cause of the problem is improper human operation, such as the unreasonable position of the wiring harness, the wiring harness and the electrical equipment wiring error, and the wiring harness components are destroyed during maintenance.

Detection and discrimination of electronic wiring harness faults:

Taking iron: The rule of electronic wiring harness burning is that in the circuit of the power system, where the iron is taken, the electronic wiring harness is burned to where the junction of the burnt and missing parts can be considered that the wire is taken iron; If the electronic wiring harness burns out to the wiring part of an electrical equipment, it is indicated that the electrical equipment is faulty.

Short circuit: the electronic wiring harness is kneaded and impacted externally, resulting in damage to the insulation layer of the electronic wiring harness, resulting in a short circuit between the wires, making some electrical equipment out of control and the safety wire blown.

When judging, the electronic wiring harness connector at both ends of the electrical equipment and the control switch can be disassembled, and the short circuit of the line can be detected with an electric meter or a test light.