Yamaha YZF-R15, Service Manual

Page: 275 / 338

8-18 8-17
LIGHTING SYSTEM LIGHTING SYSTEM
TROUBLESHOOTING
Any of the following fail to light: headlight, high beam indicator light, taillight, auxiliary light or meter light.
NOTE:
• Before troubleshooting, remove the following part(s):
1. Seat
3. Headlight
2. Side Cover & Cowling
NG →
OK ↓
NG →
OK ↓
NG →
OK ↓
NG →
OK ↓
NG →
OK ↓
NG →
OK ↓
NG →
OK ↓
1. Check the each bulbs and bulb
sockets condition.
Refer to “CHECKING THE BULBS
AND BULB SOCKETS” on page
8-60.
Replace the bulb(s) and bulb socket(s).
2. Check the fuse.
Refer to “CHECKING THE FUSE”
on page 8-61. Replace the fuse.
3. Check the battery.
Refer to “CHECKING AND
CHARGING THE BATTERY ” on
page 8-61. • Clean the battery terminals.
• Recharge or replace the battery.
4. Check the main switch.
Refer to “CHECKING THE
SWITCHES” on page 8-57. Replace the main switch.
5. Check the dimmer switch.
Refer to “CHECKING THE
SWITCHES” on page 8-57.
The dimmer switch is faulty. Replace the
left handlebar switch.
6. Check the pass switch.
Refer to “CHECKING THE
SWITCHES” on page 8-57.
The pass switch is faulty. Replace the left
handlebar switch.
7. Check the entire lighting system
wiring.
Refer to “CIRCUIT DIAGRAM” on
page 8-15. Properly connect or repair the lighting sys-
tem wiring.
This circuit is OK.