Why is the Geely Vision's horn not working?

[SanDaniella]

The reasons why the Geely Vision's horn is not working are as follows: 1. Water ingress due to poor sealing: The horn is internally sealed, but if the sealing is not tight, water vapor can easily enter during car washing, causing the contacts to become damp and malfunction. 2. Poor contact at the electromagnetic coil terminal: Some horns have aluminum metal connections at the terminals of the enameled wire inside the electromagnetic coil. If the insulation paint on the ends of the enameled wire is not properly removed or the rivet connection is loose, a poor connection can occur, leading to the horn not working. This type of fault can only be resolved by replacement, not repair. 3. Contact erosion due to prolonged horn use: Pressing the horn for extended periods can cause the contacts to erode, creating resistance. This reduces the current through the electromagnetic coil, preventing it from attracting the armature to drive the diaphragm and produce sound. However, when the horn is pressed repeatedly, the momentary high current can still pass through the resistance, allowing intermittent operation.