Yamaha MBK MW125 2014 Service Manual page 319

2. Check the entire signaling system
wiring.
Refer to "CIRCUIT DIAGRAM" on
page 8-19.
OK ↓
Replace the horn.
The tail/brake light fails to come on.
1. Check the tail/brake light sockets.
Refer to "CHECKING THE BULBS
AND BULB SOCKETS" on page
8-58.
OK ↓
2. Check the front brake light switch.
Refer to "CHECKING THE
SWITCHES" on page 8-55.
OK ↓
3. Check the rear brake light switch.
Refer to "CHECKING THE
SWITCHES" on page 8-55.
OK ↓
4. Check the entire signaling system
wiring.
Refer to "CIRCUIT DIAGRAM" on
page 8-19.
OK ↓
Replace the tail/brake light assembly.
The turn signal light, turn signal indicator light or both fail to blink.
1. Check the rear turn signal light
bulbs and sockets.
Refer to "CHECKING THE BULBS
AND BULB SOCKETS" on page
8-58.
OK ↓
2. Check the turn signal switch.
Refer to "CHECKING THE
SWITCHES" on page 8-55.
OK ↓
NG →
Properly connect or replace the wire har-
ness.
NG →
Replace the tail/brake light socket or both.
NG →
Replace the front brake light switch.
NG →
Replace the rear brake light switch.
NG →
Properly connect or replace the wire har-
ness.
NG →
Replace the rear turn signal light bulb,
socket or both.
NG →
• The turn signal switch is faulty.
• Replace the left handlebar switch.
8-22
SIGNALING SYSTEM