Yamaha YZF-R1B 2012 Service Manual page 444

Manuals by Motomatrix / www.motomatrix.co.uk / The Solution For Lost Motorcycle Coded Keys
Fault code No.
Symptom
Fail-safe action
Diagnostic monitor-
ing code No.
Meter display
Checking method
Item/components and
probable cause
5 Sensor installation status
- Check the mounting section
for loose or pinched mount-
ing.
6 Cylinder identification sensor
malfunction
7 ECU malfunction
Fault code No.
Symptom
Fail-safe action
Diagnostic monitor-
ing code No.
Meter display
Checking method
Item/components and
probable cause
1 Connection of crankshaft
position sensor coupler
Check the connection of the
coupler is secure.
Remove the coupler, and
check each pin (for bending,
wear, or locking).
2 Connection of main harness
ECU coupler
Check the connection of the
coupler is secure.
Remove the coupler, and
check each pin (for bending,
wear, or locking).
email: info@motomatrix.co.uk
11
Normal signals are not received from the cylinder identification sen-
sor.
Engine startup: Impossible
Riding: Possible
—
—
—
Check or maintenance job
Incorrect installation → Rein-
stall or repair the sensor.
Sensor inspection procedure
Refer to "CHECKING THE
CYLINDER IDENTIFICA-
TION SENSOR" on page 8-
145.
Replace the ECU.
12
Normal signals are not received from the crankshaft position sen-
sor.
Engine startup: Impossible
Riding: Impossible
—
—
—
Check or maintenance job
Poor connection → Connect
it securely, or repair/replace
the wire harness.
Poor connection → Connect
it securely, or repair/replace
the wire harness.
8-47
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.
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
dure