Yamaha 2007 XP500 Service Manual page 341

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
8-105.
OK↓
2. Check the brake light switch.
Refer to "CHECKING THE
SWITCHES" on page 8-101.
OK↓
3. Check the entire signaling system's
wiring.
Refer to "CIRCUIT DIAGRAM" on
page 8-23.
OK↓
This circuit is OK.
The turn signal light, turn signal indicator light or both fail to blink.
1. Check the turn signal/turn signal indi-
cator light bulb and socket.
Refer to "CHECKING THE BULBS
AND BULB SOCKETS" on page
8-105.
OK↓
2. Check the turn signal switch.
Refer to "CHECKING THE
SWITCHES" on page 8-101.
OK↓
3. Check the hazard switch.
Refer to "CHECKING THE
SWITCHES" on page 8-101.
OK↓
4. Check the turn signal/hazard relay.
Refer to "CHECKING THE RELAYS"
on page 8-110.
OK↓
5. Check the entire signaling system's
wiring.
Refer to "CIRCUIT DIAGRAM" on
page 8-23.
OK↓
This circuit is OK.
The V-belt replacement indicator fails to come on.
1. Check the V-belt replacement indicator
reset coupler.
Refer to "CHECKING THE V-BELT
RESET COUPLER" on page 8-121.
OK↓
NG→
Replace the tail/brake light bulb, socket or both.
NG→
Replace the brake light switch.
Properly connect or repair the signaling system's
NG→
wiring.
Replace the turn signal indicator light bulb, socket
NG→
or both.
NG→
Replace the left handlebar switch.
NG→
Replace the right handlebar switch.
The turn signal relay is faulty and must be
NG→
replaced.
Properly connect or repair the signaling system's
NG→
wiring.
Replace the V-belt replacement indicator reset
NG→
coupler.
8-26
SIGNALING SYSTEM