Check
1. The horn is mounted below the left-hand radiator on XL models and the right-hand radiator on XRV models (see illustrations). On XL models, remove the stone guard (see Chapter 8), and for best access the left-hand fairing side panel (XL600V) or the fairing (XL650V) (see Chapter 8). On XRV models you should be able to get at the horn from the front quite easily, but remove the left-hand side panel if required (see Chapter 8).
26.1a. Horn - XL600V
26.1b. Horn - XL650V
26.1c. Horn - XRV750
2. Unplug the wiring connectors from the horn (see illustration). Using two jumper wires, apply battery voltage directly to the terminals on the horn. If the horn sounds, check the switch (see Section 21). Also check for voltage at the light green wire connector with the ignition ON and the horn button pressed. If voltage is present, check the green wire for continuity to earth. If no voltage was present, check the light green wire for continuity between the horn and the switch, and in the black/brown or white/green (according to model) wire from the switch to the fusebox, and then to the ignition switch (see the wiring diagrams at the end of this Chapter). With the ignition switch ON, there should be voltage at the black/brown or white/green wire to the horn button in the left-hand switch gear.
26.2. Disconnect the wiring connectors
3. If the horn doesn't sound, replace it with a new one.
Replacement
4. The horn is mounted below the left-hand radiator on XL models and the right-hand radiator on XRV models (see illustration 26.1a, b or c) On XL models, remove the stone guard, and for best access the left-hand fairing side panel (XL600V) or the fairing (XL650V) (see Chapter 8). On XRV models you should be able to get at the horn from the front quite easily, but remove the left-hand side panel if required (see Chapter 8).
5. Unplug the wiring connectors from the horn (see illustration 26.2). Unscrew the nut securing the horn and remove it from the bike.
6. Install the horn and tighten the nut securely. Connect the wiring to the horn. Check that it works, then install the stone guard, fairing side panel or fairing as required according to model and your procedure (see Chapter 8).