Common faults in automobile lines are: poor contact of plug-in connectors, short circuit between wires, open circuits, iron rides, etc.
The reasons for this are as follows:
1) Natural damage
The use of the wire harness exceeds the service life, so that the wire aging, the insulation layer is ruptured, the mechanical strength is significantly reduced, causing short circuit, open circuit, iron tie, etc. between the wires, resulting in the wire bundle burnout.
2) Damage to the wire harness due to the failure of electrical equipment
When electrical equipment is overloaded, short circuit, iron and other failures, it may cause damage to the wire harness.
3) Human failure
When assembling or overhauling auto parts, metal objects crush the wire harness, causing the insulation of the wire harness to break; The positive and negative leads of the battery are reversed; When the maintenance circuit fails, random connection, random cutting of wire harness wires, etc., can cause the abnormal operation of electrical equipment.
