Why does the car horn sound become quieter after heavy rain?

[MacRemington]

Two main reasons for the car horn sound becoming lower after rain: 1. Poor internal contact point connection: According to the working principle of car horns, once the contact points have poor connection, the horn may sound intermittently. When encountering this situation, the first consideration should be whether the contacts have been wetted or affected by moisture. 2. Poor plug connection: Sometimes the contact points around the steering wheel may wear out due to frequent use, leading to loose connections. This can also cause the horn sound to become hoarse. If this occurs during rainy weather combined with poor contact, it may result in the sound becoming quieter or even completely silent.