Why Does the Car Horn Sometimes Work and Sometimes Not?

[TheoDella]

Car horn sometimes working and sometimes not is caused by: 1. The horn contacts being eroded, creating impedance, which weakens the current flowing through the electromagnetic coil, reducing the electromagnetic force and preventing it from attracting the armature to drive the diaphragm to vibrate normally; 2. Water vapor entering due to poor sealing, causing the contacts to become damp and fail to function properly; 3. The insulation paint on the enameled wire ends not being completely removed or the rivets not being securely crimped, leading to a poor connection. The car horn is an acoustic signal device, and its functions are: 1. During driving, the driver can emit necessary sound signals as needed and according to regulations to warn pedestrians and alert other vehicles, ensuring traffic safety; 2. Used for urging movement and transmitting signals.