Before starting electrical diagnosis, check the
Fuse and relay. Begin by disconnecting the electrical connector from the horn. Test the horn by connecting battery voltage to the terminal using a jumper wire. If the horn does not sound, it needs to be replaced; if it does sound, the issue may be with the switch, relay, or wiring between components. Next, disconnect the electrical connector(s) and remove the mounting bolt. To complete the process, installation follows the reverse order of removal.