Why is the horn of the Besturn B50 not working?

[Stephen]

Reasons: Damage to the wiring and switch power supply; operational errors, etc. Below is an introduction to car horns: 1. Working principle: The car electric horn produces sound through the vibration of a metal diaphragm. The car electric horn consists of an iron core, magnetic coil, contacts, armature, diaphragm, etc. When the driver presses the horn switch, current flows through the contacts to the coil, generating magnetic force that pulls down the armature, forcing the diaphragm to move. The movement of the armature disconnects the contacts, interrupting the current and causing the coil's magnetic force to disappear. The diaphragm, along with the armature, returns to its original position under its own elasticity and the spring plate, closing the contacts again and restoring the circuit. Current flows through the contacts to the coil, generating magnetic force and repeating the above process. This cycle continues, causing the diaphragm to vibrate repeatedly and produce sound. 2. Different types: Car horns are classified by sound power into air horns and electric horns; by shape into cylindrical, spiral, and disc types; and by frequency into high-pitched and low-pitched horns.