Yamaha XV19SX(C), Service Manual, Page: 415 / 494

SIGNALING SYSTEM
7-24
NG
→
OK
↓
NG
→
OK
↓
The tail/brake light fails to come on.
NG
→
OK
↓
NG
→
OK
↓
NG
→
OK
↓
The turn signal light, turn signal indicator light or both fail to blink.
NG
→
OK
↓
NG
→
OK
↓
NG
→
OK
↓
2. Check the horns.
Refer to “CHECKING THE
HORNS” on page 7-86. Replace the horn(s).
3. Check the entire signaling system
wiring.
Refer to “CIRCUIT DIAGRAM” on
page 7-21. Properly connect or repair the signaling
system wiring.
This circuit is OK.
1. Check the front brake light switch.
Refer to “CHECKING THE
SWITCHES” on page 7-71. Replace the front brake light switch.
2. Check the rear brake light switch.
Refer to “CHECKING THE
SWITCHES” on page 7-71. Replace the rear brake light switch.
3. Check the entire signaling system
wiring.
Refer to “CIRCUIT DIAGRAM” on
page 7-21. Properly connect or repair the signaling
system wiring.
This circuit is OK.
1. Check the condition of each bulb
and bulb socket.
Refer to “CHECKING THE BULBS
AND BULB SOCKETS” on page
7-74.
Replace the bulb(s) and bulb socket(s).
2. Check the turn signal switch.
Refer to “CHECKING THE
SWITCHES” on page 7-71.
The turn signal switch is faulty. Replace
the left handlebar switch.
3. Check the turn signal relay.
Refer to “CHECKING THE TURN
SIGNAL RELAY” on page 7-80. Replace the turn signal relay.