What are the reasons for the horn not working in the Emgrand eC715?
2 Answers
Reasons for the Emgrand eC715 horn not working are as follows: Poor sealing: The interior of the horn is sealed, but if the sealing is poor, water vapor can easily enter during car washing, causing the contacts to become damp and preventing normal operation. Poor contact at the electromagnetic coil terminal: Some horns have aluminum metal connections for the enameled wire terminals of the internal electromagnetic coil. If the insulation paint on the ends of the enameled wire is not completely removed, or if the rivet crimping is not secure, it can easily lead to poor contact, resulting in the horn not working. This type of fault can only be resolved by replacement, not repair. Prolonged pressing of the horn causing contact erosion: Prolonged pressing of the horn can easily cause the contacts to erode, creating impedance. As a result, the current passing through the electromagnetic coil weakens, unable to attract the armature to drive the diaphragm for normal vibration, leading to the horn not working. However, when the horn is pressed continuously, the instantaneous strong current can still pass through the impedance and function normally, so the horn may work intermittently.
I've encountered a similar issue with the Geely Emgrand eC715 horn not working, which mainly stems from five common causes. The most frequent is poor contact in the horn button, as prolonged steering wheel use can lead to wear and unreliable connections. Secondly, blown fuses are common, especially during rainy weather or circuit overloads. Horn unit damage is also prevalent, particularly among drivers who frequently press the horn forcefully. Wiring issues shouldn't be overlooked—loose connectors or rodent-chewed wires can cause circuit breaks. Lastly, a depleted 12V auxiliary battery can be the culprit; EV horns operate independently from the high-voltage battery system, making them the first component to fail when power is low. I recommend first checking the fuse box, typically located behind the left-side panel below the steering wheel.