Yamaha FZ 25 2021 Supplementary Service Manual page 149

3. Check the entire signaling system
wiring.
OK
This circuit is OK.
The brake/tail light fails to come on.
1. Check the brake/tail light bulb and
socket.
Refer to "CHECKING THE BULBS
AND BULB SOCKETS" in base
service manual B97-F8197-E0 on
page 7-60.
OK
2. Check the front brake light switch.
Refer to "CHECKING THE FUSES"
on page 6-106.
OK
3. Check the rear brake light switch.
Refer to "CHECKING THE
SWITCHES" on page 6-105.
OK
4. Check the entire signaling system
wiring.
Refer to "CIRCUIT DIAGRAM" in
base service manual B97-F8197-E0
on page 7-17.
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" in base
service manual B97-F8197-E0 on
page 7-60.
OK
2. Check the turn signal switch.
Refer to "CHECKING THE
SWITCHES" on page 6-105.
OK
SIGNALING SYSTEM
NG
Properly connect or repair the signaling
system wiring.
NG
Replace the brake/tail light assembly,
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.
6-19
ELEC
– +