What are the reasons for the steering wheel horn not working?

[AubreeAnn]

The main reasons for the steering wheel horn not working are as follows: Horn contact corrosion: If the horn is pressed for a long time, it can easily cause the horn contacts to corrode and create impedance. The current passing through the electromagnetic coil weakens, reducing the electromagnetic attraction, which prevents the armature from driving the diaphragm to vibrate normally, resulting in a hoarse or non-functional horn. However, when the horn is pressed continuously, if a strong instantaneous current passes through, it may still work intermittently, leading to an intermittent functioning of the horn. Poor sealing causing moisture: Although the horn is internally sealed, if the sealing is not tight, moisture may enter during car washing, or water vapor may be present in the internal space. This moisture can easily cause the contacts to become damp and fail to function properly.