So today we are going to tell you how to repair and repair the aging problem of vehicle wiring harness. Here is the problem of wire harness aging, it is really something that many car owners have to pay attention to. It is a common thing to put you on the limit of speed limit and throw you on the road.

The aging of wire harness is, as the name suggests, "old" means long time, and "chemical" means chemical reaction. Usually, the reason of wire aging is that the time is too long, the outer insulating layer is broken and so on, but the aging of the wire harness on the truck can't refer to the literal. We need to divide it into two parts.

The first is the first very common reason, the harness is a plastic sheath of multiple copper cords, and the temperature in the north of Baotou is very high, and plastics inevitably release chemicals such as plasticizers. These chemicals are reacted with the copper core line, which is the kind of black produced when we use the fire point plastic. It causes the strength of the plastic to decrease, and the resistance of the copper core rises, causing the vehicle to report abnormal faults.

The other is the physical cause of wire aging, the better understanding, we often say that the truck bumps, bumps in the driving is very fierce, and many truck line wire harness is not reasonable, it is easy to wear and tear, this usually when we are counted in the aging range.

Therefore, according to different aging reasons, we should use different maintenance methods, and enumerate the main reasons for the aging of wire harness.

1, long-term overload operation, overload operation, vehicles in the fire, Baotou North run heavy steam parts air conditioning operation and other high power work mode, wire harness is in high load operation, so when we study in the driving school, the coach will scold the continuous flameout and fire, the car is the same, long run will lead to electricity. The line conductor is heated, which aggravates the aging process.

Resolvent：

Avoid long fire request; install independent truck air conditioner.

2, environment and temperature, the external environment and heat source of the harness also cause high temperature, insulation breakdown and even fire.

Resolvent：

Cold and heat are not good for wiring harness, so we should do well for the environment.

3, external force damage, many vehicle failures are actually due to external wear and tear caused by wire leakage leaking, so the vehicle reported failure.

Resolvent：

In the correct way, the wire harness is added in the easily worn position, the matching line holes are selected, and the strands are bandaged, and the protective cover structure is added between the inserts and the external bellows to avoid the leakage of the wire.

4, the wiring harness connector failure, the connector is the weakest link in the cable line, and the cable joint fault caused by the direct fault of staff often occurs.

Resolvent：

This requires training of personnel, installation and removal of wiring harness connectors, and precautions for pins.

5, chemical corrosion, this is also a common fault phenomenon, including leakage corrosion of the battery, corrosion of urea, and many southern encounter with Meiyu weather. It also causes serious corrosion of the vehicle leakage wire harness, which causes the failure of the protective layer and the reduction of insulation, and will also cause the vehicle to report false faults.

Resolvent：

This requires the owners to pay more attention. They often check the wiring harness of the vehicle and check the leakage of the Baotou Bei Ben heavy duty steam box and the urea box.