Bus lines common faults are: poor contact connectors, wire between the short circuit, open circuit, Datie so.
Causes the following areas:
1) Natural Damage
Wire bundle to use more than the use of period, so that wire aging, broken insulation, mechanical strength decreased significantly between the lead wires short-circuit, open circuit, Datie, have resulted in wire bundles burnout. Harness terminal oxidation, deformation, resulting in poor contact and so on, will cause electrical equipment does not work properly.
2) Due to failure of electrical equipment damage caused by wire bundles
Occurs when the electrical equipment overload, short circuit, Datie other failure, may cause damage to wire bundles.
3) Human failure
Assembly or repair automotive components, the metal objects will be crushed wire bundles, so that wire bundle insulation breakdown; wire bundle is poorly located; location of electrical equipment connected the wrong wire; battery positive and negative leads reversed; maintenance circuit failure, then chaos , arbitrary cut wire and wire bundles, etc., can be caused by electrical equipment does not work, or even burn wire bundles.