Yamaha R1 Series 2015, Service Manual

Page: 508 / 704

LIGHTING SYSTEM
8-27
EAS30499
TROUBLESHOOTING
Any of the following fail to light: headlight, auxiliary light, high beam indicator light, tail/brake light, li-
cense plate light or meter light.
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. Headlight assembly
1. Check the fuses.
(Main, headlight, backup, ignition
and signaling system)
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 dimmer switch.
Refer to “CHECKING THE
SWITCHES” on page 8-177.
NG
o
The dimmer switch is faulty. Replace the
left handlebar switch.
OK
p
5. Check the pass/LAP switch.
Refer to “CHECKING THE
SWITCHES” on page 8-177.
NG
o
The pass/LAP switch is faulty. Replace
the left handlebar switch.
OK
p
6. Check the entire lighting system’s
wiring.
Refer to “CIRCUIT DIAGRAM” on
page 8-23.
NG
o
Properly connect or repair the lighting sys-
tem’s wiring.
OK
p
Replace the ECU, meter assembly,
headlight assembly, tail/brake light, li-
cense plate light or auxiliary light.
Refer to “REPLACING THE ECU (En-
gine Control Unit)” on page 8-180.