Examination
Note. Always check the condition of the fuse first.
1. Disconnect the electrical wiring from the horn horn.
2. To check the correct functioning of the horn, apply battery voltage to one of its terminals. Ground the other terminal (use jumper wires). If the horn does not beep, replace it.
3. If the horn sounds properly, check for voltage at the horn connector with the control button pressed (see accompanying illustration). If voltage is present, check the condition of the ground.
4. If there is no voltage, check the relay (see Relay - general information and function check).
5. If the relay is OK, check the power supply to the power relay. Also check the power supply to the control circuit. If there is a power failure in any of the circuits, check the condition of the wiring in the section of the circuit between the relay and the fuse mounting block.
6. If the voltage is properly supplied to the circuits of both relays, press the horn button and check the conductivity of the switch to ground. If there is no continuity, check the circuit for an open circuit. If the circuit is OK, replace the horn switch.
7. If the switch is not conductive, check for an open and short circuit in the circuit between the relay and the switch.
Replacement
1. In order to provide access to the horn, remove the locker of the left front wheel (see chapter Body).
2. Disconnect the electrical connectors and remove the mounting bracket bolt (see accompanying illustration).
3. Installation is carried out in the reverse order.