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When the horn, should first distinguish is faulty wiring or horn itself.

Let's look at how speakers. When pressed on the steering wheel, or other position from the loudspeaker button, the battery will flow to the loop current through the wire on the horn relays, electromagnetic winding electromagnetic relay attracted dynamic switch, current will flow closed to the speaker. The speaker currents, thereby electromagnets vibration and noise vibration membrane.

Line fault line up for virtual, such as: the speaker terminals loose, horn relays plug contacts in ablation, steering wheel contact switches etc. Horn But in many speakers in winter, especially the problem of the fault is horn itself.

Combined with our use of environmental factors, the main speaker itself for the following reasons fault:

1 contacts ablation: if long time to cause horn honking contacts ablation and produce impedance, through the magnetic coil current abate, electromagnetic force driving down cannot attract bit vibration in pronunciation, diaphragm normal hoarse, even not ring. But if the horn, instantaneous current through the impedance can still work normally, so will ups and downs.

2 to damp: although lax seal speaker is closed, but if the sealing wash into the fog or when lax internal space in the air and water vapor is easy to cause the contacts damp doesn't work.

3 magnetic coil terminal contact undesirable: some speaker wire enameled wire terminals magnetic coil aluminum metallic rivet joint is connected, the pressure of reliable connection, if the end welding wire enameled wire on the net or rivets varnish processing not less pressure to meet failure, virtual work horn. The fault is the horn, cannot be repaired, the quality of new pieces. Only replace

Suggest car speakers use the matters needing attention:

1 when the car that prevent speaker is wet, found in water FengQiang horn soon blow dry.

2 don't always for a long time, so easy to cause the horn horn contacts premature ablation.

3 as for professional speakers malfunction maintenance technicians to help, don't blindly, easy cause unnecessary replacement horn of waste.