Nissan 25610-ZB000 Horn Assembly - Electric High

Before beginning electrical diagnosis, check the fuses. For 2004 and later models, remove the left headlight housing to access the low-pitch horn or the right headlight housing for the high-pitch horn. To test the horn, connect battery voltage and ground to the two terminals using jumper wires; if the horn doesn't sound, it needs replacement. If it does sound, the issue may be with the switch, relay, or wiring between the components. To replace the horn, unplug the electrical connector and remove the bracket bolt, then detach the horn. Installation is the reverse of removal.