The Tail/Brake Light Fails To Come On; The Turn Signal Light, Turn Signal Indicator Light Or Both Fail To Blink - Yamaha 2009 YZF-R1 (Y) Service Manual

3. Check the entire signaling system's
wiring.
Refer to "CIRCUIT DIAGRAM" on
page 8-21.
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 8-121.
OK↓
2. Check the rear brake light switch.
Refer to "CHECKING THE
SWITCHES" on page 8-121.
OK↓
3. Check the entire signaling system's
wiring.
Refer to "CIRCUIT DIAGRAM" on
page 8-21.
OK↓
This circuit is OK.

The turn signal light, turn signal indicator light or both fail to blink.

1. Check the turn signal light bulbs
and sockets.
Refer to "CHECKING THE BULBS
AND BULB SOCKETS" on page 8-
124.
OK↓
2. Check the turn signal switch.
Refer to "CHECKING THE
SWITCHES" on page 8-121.
OK↓
3. Check the hazard switch.
Refer to "CHECKING THE
SWITCHES" on page 8-121.
OK↓
SIGNALING SYSTEM
NG→
Properly connect or repair the signal-
ing system's wiring.
NG→
Replace the front brake light switch.
NG→
Replace the rear brake light switch.
NG→
Properly connect or repair the signal-
ing system's wiring.
NG→
Replace the turn signal light bulb(s),
socket(s) or both.
NG→
Replace the left handlebar switch.
NG→
Replace the left handlebar switch.
8-24