Yamaha XV19SX(C) Service Manual page 415

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