Checking The Signaling System - Yamaha XV1700P Service Manual

EAS00796

CHECKING THE SIGNALING SYSTEM

1. The horn 1 fails to sound.
1. Horn switch
• Check the horn switch for continuity.
Refer to "CHECKING THE SWITCHES".
• Is the horn switch OK?
YES
2. Voltage
• Connect the pocket tester (DC 20 V) to the
horn 1 connector at the horn 1 terminal as
shown.
Positive tester probe → black/white 1
Negative tester probe → ground
B/W
1
• Set the main switch to "ON".
• Push the horn switch.
• Measure the voltage (DC 12 V) of black/
white at the horn 1 terminal.
• Is the voltage within specification?
YES
SIGNALING SYSTEM
NO
Replace the left han-
dlebar switch.
B
NO
The wiring circuit
from the main switch
to the horn connector
is faulty and must be
repaired.
7 - 47
3. Horn 1
• Disconnect the black connector at the horn
1 terminal.
• Connect a jumper lead 1 to the horn 1 ter-
minal and ground the jumper lead.
• Set the main switch to "ON".
• Push the horn switch.
• Does the horn 1 sound?
B/W
NO
Replace the horn 1.
– +
ELEC
1
YES
The horn 1 is OK.