Yamaha 2009 XP500Y TMAX Service Manual page 319

3. Check the entire signaling system
wiring.
Refer to "CIRCUIT DIAGRAM" on
page 8-19.
OK ↓
This circuit is OK.
The tail/brake light fails to come on.
1. Check the tail/brake light bulb and
socket.
Refer to "CHECKING THE BULBS
AND BULB SOCKETS" on page
8-64.
OK ↓
2. Check the front brake light switch.
Refer to "CHECKING THE
SWITCHES" on page 8-61.
OK ↓
3. Check the rear brake light switch.
Refer to "CHECKING THE
SWITCHES" on page 8-61.
OK ↓
4. Check the entire signaling system
wiring.
Refer to "CIRCUIT DIAGRAM" on
page 8-19.
OK ↓
This circuit is OK.
The turn signal light, turn signal indicator light or both fail to blink.
1. Check the turn signal light bulb and
socket.
Refer to "CHECKING THE BULBS
AND BULB SOCKETS" on page
8-64.
OK ↓
2. Check the turn signal switch.
Refer to "CHECKING THE
SWITCHES" on page 8-61.
OK ↓
SIGNALING SYSTEM
NG →
Properly connect or repair the signaling
system wiring.
NG →
Replace the tail/brake light bulb, socket or
both.
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 turn signal light bulb, socket or
both.
NG →
The turn signal switch is faulty. Replace
the left handlebar switch.
8-22