Car horn is a device frequently used while driving, if the speaker fails, when the car will be very convenient. Sometimes by the speaker, the sound is not like a mosquito called, is very hoarse, and even a little sound at all. This is what causes it?

Let's take a look at how speakers work. When pressed on the steering wheel horn button or other location when the current from the battery flows through the circuit of the electromagnetic coil on the horn relay, solenoid relay coil to attract the dynamic contact switch is closed, current will flow to the speaker at. Speaker within the solenoid current to work, so diaphragm vibration and Car Audio.

According to the author's experience, the failure in many of the speakers, the problem often is the speaker's own fault. In particular, some car speaker installation location of the design flaws in the speaker when it rains it is easy to get wet by rain, causing damage to speakers. When the speaker does not ring, the common fault location no more than three points, namely horn itself, speakers and speaker wire the switch contacts, when the failure can refer to the following steps to check.

(1) sometimes does not ring horn switch, if the speakers sometimes car audio speaker, sometimes does not ring, mostly horn switch contacts inside the contact is not good, there is also a speaker itself.

(2) more than a sore throat is due to bad plugs, especially the various contacts around the steering wheel, the use of frequent, easy to contact wear.

(3) does not ring completely to see if the fuse check the fuse first, then unplug the speaker plug with a multimeter to measure the horn switch in whether there is power here. If there is no electricity, should check the speaker wiring harness and horn relay; if there is electricity, is the speaker itself, then you can try to adjust the speaker on the adjustment nut to see if sound, if still does not ring, you need to replacement speaker.