Yamaha YZF-R1(B) 2012 Service Manual page 445

Fault code No.
Symptom
Fail-safe action
Diagnostic monitor-
ing code No.
Meter display
Checking method
Item/components and
probable cause
3 Continuity of wire harness
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
Open or short circuit →
Replace the wire harness.
Gray–Gray
Black/Blue–Black/Blue
Incorrect installation → Rein-
stall or repair the sensor.
Sensor inspection procedure
Refer to "CHECKING THE
CRANKSHAFT POSITION
SENSOR" on page 8-137.
Replace the ECU.
FUEL INJECTION SYSTEM
8-48
Sensor inspection proce-
dure
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.
Crank the engine, and check
the fault code indication.
No fault code indicated. →
Recovered.
Fault code indicated. →
Check the next step.