Yamaha YZF-R1 Series Service Manual page 457

2. Check the horn.
Refer to "CHECKING THE HORN"
on page 8-47.
OK ↓
3. Check the entire signaling sys-
tem's wiring.
Refer to "CIRCUIT DIAGRAM" on
page 8-19.
OK ↓
This circuit is OK.
The tail/brake light fails to come on.
1. Check the front brake light switch.
Refer to "CHECKING THE
SWITCHES" on page 8-40.
OK ↓
2. Check the rear brake light switch.
Refer to "CHECKING THE
SWITCHES" on page 8-40.
OK ↓
3. Check the entire signaling sys-
tem's wiring.
Refer to "CIRCUIT DIAGRAM" on
page 8-19.
OK ↓
Replace the tail/brake light.
The turn signal light, turn signal indicator light or both fail to blink.
1. Check the turn signal switch.
Refer to "CHECKING THE
SWITCHES" on page 8-40.
OK ↓
2. Check the hazard switch.
Refer to "CHECKING THE
SWITCHES" on page 8-40.
OK ↓
SIGNALING SYSTEM
NG →
Replace the horn.
NG →
Properly connect or repair the signaling
system's wiring.
NG →
Replace the front brake light switch.
NG →
Replace the rear brake light switch.
NG →
Properly connect or repair the signaling
system's wiring.
NG →
Replace the handlebar switch (left).
NG →
Replace the handlebar switch (left).
8-22