Yamaha R1 Series 2015, Service Manual

Page: 514 / 704

SIGNALING SYSTEM
8-33
EAS30501
TROUBLESHOOTING
• Any of the following fail to light: turn signal light, brake light or an indicator light.
•
The horn fails to sound.
• The speedometer fails to operate.
TIP
•
Before troubleshooting, remove the following part(s):
1. Front side cowling/Front panel/Side cover
2. Passenger seat/Rider seat/Tail cover/Rear side cover
3. Fuel tank cover
4. Fuel tank
5. Air filter case
6. Throttle bodies
7. Drive sprocket cover
Checking the signaling system
The horn fails to sound.
1. Check the fuses.
(Main, ignition, signaling system,
backup, ABS control unit and haz-
ard lighting)
Refer to “CHECKING THE FUSES”
on page 8-180.
NG
o
Replace the fuse(s).
OK
p
2. Check the battery.
Refer to “CHECKING AND
CHARGING THE BATTERY” on
page 8-181.
NG
o
• Clean the battery terminals.
• Recharge or replace the battery.
OK
p
3. Check the main switch.
Refer to “CHECKING THE
SWITCHES” on page 8-177.
NG
o
Replace the main switch/immobilizer unit.
OK
p
4. Check the entire signaling system’s
wiring.
Refer to “CIRCUIT DIAGRAM” on
page 8-29.
NG
o
Properly connect or repair the signaling
system’s wiring.
OK
p
Check the condition of each of the sig-
naling system circuits.
Refer to “Checking the signaling sys-
tem”.
1. Check the horn switch.
Refer to “CHECKING THE
SWITCHES” on page 8-177.
NG
o
Replace the left handlebar switch.
OK
p