Causes:

1. The battery power is insufficient.

2. The speaker’s fixed bracket is loose.

3. The speaker’s power plug is in poor contact.

4. The car horn is damaged due to water ingress, etc. Inspection method:

1. Connect a wire from the positive terminal of the battery directly to the live wire terminal of the horn, and then press the horn button. If the sound becomes louder, it means that the battery and its wires are connected well and there is a fault. Inside the electric horn, there may be contact ablation.

2. If the sound is still very small after maintenance, the battery is running out of power or the wires are poorly connected. Turn on the high beam of the headlights. If the light is strong, the battery is good. Otherwise, the battery is running out of power. many.