Yamaha YZFR1Y(C) 2009 Service Manual page 413

2. Check the entire signaling system's
wiring.
Refer to "CIRCUIT DIAGRAM" on
page 8-21.
OK↓
Replace the meter assembly.
The coolant temperature warning light fails to come on.
1. Check the coolant temperature
sensor.
Refer to "CHECKING THE COOL-
ANT TEMPERATURE SENSOR"
on page 8-122.
OK↓
2. Check the entire signaling system's
wiring.
Refer to "CIRCUIT DIAGRAM" on
page 8-21.
OK↓
Replace the ECU or meter assembly.
The speedometer fails to operate.
1. Check the speed sensor.
Refer to "CHECKING THE SPEED
SENSOR" on page 8-121.
OK↓
2. Check the entire signaling system's
wiring.
Refer to "CIRCUIT DIAGRAM" on
page 8-21.
OK↓
Replace the ECU or meter assembly.
The shift timing indicator light fails to come on.
1. Check that the shift timing indicator
light is set to come on and that the
brightness level of the light is
adjusted properly.
Refer to "FEATURES" on page 1-2.
OK↓
SIGNALING SYSTEM
NG→
Properly connect or repair the signal-
ing system's wiring.
NG→
Replace the coolant temperature sen-
sor.
NG→
Properly connect or repair the signal-
ing system's wiring.
NG→
Replace the speed sensor.
NG→
Properly connect or repair the signal-
ing system's wiring.
NG→
Replace the meter assembly.
8-26