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Daily maintenance of car speaker.

1. The horn can not makes sound when press it First, please check the fuse to confirm whether it is burned out, then disconnect the plug and use multimeter to measure whether it has electricity when press the horn. If it has no electricity, you need to check the horn harness and horn relay. If it has electricity, so the problem is the horn, it needs to change the horn.
2. The voice of horn is raucity Please check whether the plug connect with the switch is good or not, because it is easy to abrade when using more times.
3. The horn sometimes can makes sound, sometimes can not when press it.
Please also check the plug first,the reason maybe is the plug do not connect with the switch good, or just the horn has broken.
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