Yamaha XV19SX(C), Service Manual

Page: 414 / 494

SIGNALING SYSTEM
7-23
EAS27290
TROUBLESHOOTING
• Any of the following fail to light: turn signal light, brake light or an indicator light.
• The horn fails to sound.
• The fuel level gauge fails to operate.
• The speedometer fails to operate.
NOTE:
• Before troubleshooting, remove the following part(s):
1. Rider seat
2. Tool kit tray
3. Rider seat bracket assembly
4. Headlight assembly
5. Fuel tank
NG
→
OK
↓
NG
→
OK
↓
NG
→
OK
↓
NG
→
OK
↓
Checking the signaling system
The horn fails to sound.
NG
→
OK
↓
1. Check the fuses.
(Main, backup, ignition, signaling
system and ECU (for XV19S(C)/
XV19M(C)/ XV19CTS(C)/
XV19CTM(C)))
Refer to “CHECKING THE FUS-
ES” on page 7-75.
Replace the fuse(s).
2. Check the battery.
Refer to “CHECKING AND
CHARGING THE BATTERY” on
page 7-76. • Clean the battery terminals.
• Recharge or replace the battery.
3. Check the main switch.
Refer to “CHECKING THE
SWITCHES” on page 7-71. Replace the main switch.
4. Check the entire signaling system
wiring.
Refer to “CIRCUIT DIAGRAM” on
page 7-21. Properly connect or repair the signaling
system wiring.
Check the condition of each of the sig-
naling system’s circuits. Refer to
“Checking the signaling system”.
1. Check the horn switch.
Refer to “CHECKING THE
SWITCHES” on page 7-71.
The horn switch is faulty. Replace the left
handlebar switch.