horn speaker is also known as acoustic signal device of an automobile. When the horn button is pressed on the steering wheel or elsewhere, will be the current from the battery flows through the circuit of the solenoid coil horn relay, an electromagnetic coil to attract the movable contact of the relay switch is closed, current will flow at the horn. The electromagnet current operation of the internal speaker, so that the diaphragm vibration sound. Car during driving, the driver issuing the necessary signals as needed and provides caution due to other vehicles and pedestrians, but also for signal transmission line as a catalyst, to ensure traffic safety.
1. Automobile horn / tweeter Category
1. There are gas powered speakers pronounce its two kinds of horns.
2. divided cylindrical shape, and a spiral-shaped basin three.
3. audio tweeter and woofer may be divided into two kinds.
4. The two kinds of sub-speaker and a two-wire line system by wiring.
The presence or absence of contact by electrical contacts divided horn and two kinds of non-contact electric horn.
2. Faulty
1. If the time honking horn contact ablation easily cause an impedance, the current flowing through the electromagnetic coil weakening, decreased not attract the armature electromagnetic suction abnormal vibration driven diaphragm , leading to pronounce hoarse, not even ring. But constantly honk if instantaneous strong current through the impedance can still work, so will be good times and bad.
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2. The inside of the horn is closed, but into the inner space of the mist or water vapor in the air if Mifengbuyan washing, steam is easy to cause moisture contact can not always work.
3. Some speaker inside of the electromagnetic coil magnet wire terminal fitting is crimped aluminum rivet connection, a non-reliable welded connection, if the insulating paint on the process ends without a net or enameled crimping rivet is prone insecure virtual connection failure, resulting in poor horn work. Such failure is speaker quality reasons, can not be repaired, only replaced with new parts.
4. Check horn song, if the song is not crisp feel, and weak low, mostly poor contact.
5. repeatedly pressing the horn switch, if the horn sounds sometimes, sometimes ringing, mostly inside the press pad contact switch bad.
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6. The rotation of the steering wheel, if greater ldquo; hissing rdquo; friction sound, can be sprayed to the relevant contact point several grease injection site.
7. If the speaker is not completely ringing, it is likely to be blown fuses, the fuse related check. It may be a problem with the speaker power cord. Found speaker power line, the power line connection plug detachably to check if it is not in contactgood.
8. If the horn chirp dull, the horn itself is likely to be faulty, then just knocked speakers, most of them can be improved. Mostly due to the plug connection is bad, especially the various contacts around the steering wheel, due to the frequent use, easy to make contacts for wear.
9. Mifengbuyan easy to damp, although the inside of the horn is closed, but into the inner space of the mist or water vapor in the air if Mifengbuyan washing, damp steam contact can easily lead to not work .
10. The operation of the speaker when the vehicle is low, the operation of the battery concerned, to check the state of charge of the battery is normal. If the energy of the battery is reduced, the speaker sound is also reduced.
3. Precautions
1. To keep clean the external speaker, the speaker being prevented remember when wet washing, water horn found quickly dried with air gun.
2. Try not to always long horn, preferably not more than 10 seconds, so as not likely to cause premature horn contact ablation.
3. The speaker fails try to seek professional help repair technicians, do not blindly replace the speaker, likely to cause unnecessary waste.
4. The horn switch, the horn may sound if the times does not ring, mostly inside the horn switch contact into contact is not good, some of the problems but also the speaker itself.
The hoarseness is due to poor contact plug, in particular a steering wheel surrounding the respective contacts due to frequent use, easy to wear of the contacts occur.
6. Check to see if the fuse is blown, then disconnect the plug horn, measured with a multimeter whether there is an electrical switch when the horn here. If there is no power, check the horn and horn relay harness; if there is electricity, it is the problem of horn itself, in which case you can try to adjust the adjusting nut on the horn to see if sound, if you still do not ring, replace the speaker.
7. The screws on periodic inspection horn ensure reliable grounding; check engine and the output voltage, the voltage is too high to prevent burn horn contacts, or low voltage results in abnormal horn sound.
8. Do not modify horn, if it must be modified, please consult professionals to prevent each metal pad and install the wrong position of the insulating pad, leading horn failure.