Harness failure

Common faults in automobile lines are: poor contact of connectors, short circuit between wires, open circuit, grounding, etc.

The reasons are as follows:

1) Natural damage

The use of wire bundles exceeds the service life, which will cause the wires to age, the insulation layer will be broken, and the mechanical strength will be significantly reduced, causing short circuits, open circuits, and grounding between wires, resulting in burnout of the wire bundles.

2) Damage to the wiring harness due to failure of electrical equipment

When the electrical equipment is overloaded, short-circuited, grounded and other faults, it may cause damage to the wiring harness.

3) Human failure

When assembling or repairing auto parts, metal objects crush the wire harness, which ruptures the insulation layer of the wire harness; the positive and negative leads of the battery are reversely connected; when repairing circuit faults, random connection and random cutting of the wires of the wire harness can cause electrical damage. The device is not working properly.