Yamaha YZFR1Y(C) 2009 Service Manual page 406

EAS27260
TROUBLESHOOTING
Any of the following fail to light: headlight, high beam indicator light, taillight or license plate light.
TIP
• Before troubleshooting, remove the following part(s):
1. Rider seat
2. Left side cowling
3. Air intake air duct covers
4. Meter assembly
1. Check the each bulbs and bulb
sockets condition.
Refer to "CHECKING THE BULBS
AND BULB SOCKETS" on page 8-
108.
OK↓
2. Check the fuses.
(Main, headlight, ignition, signal
and fuel injection system)
Refer to "CHECKING THE FUSES"
on page 8-109.
OK↓
3. Check the battery.
Refer to "CHECKING AND
CHARGING THE BATTERY" on
page 8-109.
OK↓
4. Check the main switch.
Refer to "CHECKING THE
SWITCHES" on page 8-105.
OK↓
5. Check the dimmer switch.
Refer to "CHECKING THE
SWITCHES" on page 8-105.
OK↓
6. Check the headlight relay.
Refer to "CHECKING THE
RELAYS" on page 8-113.
OK↓
LIGHTING SYSTEM
NG→
Replace the bulb(s) and bulb
socket(s).
NG→
Replace the fuse(s).
NG→
• Clean the battery terminals.
• Recharge or replace the battery.
NG→
Replace the main switch.
NG→
The dimmer switch is faulty. Replace
the left handlebar switch.
NG→
Replace the headlight relay.
8-19