Yamaha YZFR1Y(C) 2009 Service Manual page 433

Fault code No.
Symptom
Fail-safe action
Diagnostic monitor-
ing code No.
Meter display
Checking method
Item/components and
probable cause
4 Sensor installation status
- Check the mounting section
for loose or pinched mount-
ing.
5 Crankshaft position sensor
malfunction
6 ECU malfunction
12
Normal signals are not received from the crankshaft position sen-
sor.
Engine startup: Impossible
Riding: Impossible
—
—
—
Check or maintenance job
Incorrect installation → Rein-
stall or repair the sensor.
Sensor inspection procedure
Refer to "CHECKING THE
CRANKSHAFT POSITION
SENSOR" on page 8-117.
Replace the ECU.
8-46
FUEL INJECTION SYSTEM
Sensor inspection proce-
Crank the engine, and check
the fault code indication.
No fault code indicated. →
Recovered.
Fault code indicated. →
Check the next step.
Crank the engine, and check
the fault code indication.
No fault code indicated. →
Recovered.
Fault code indicated. →
Check the next step.
dure