Fault Code 11; Fault Code 12 - Yamaha FZ8NA Service Manual

Fault code No.
Item
Fail-safe system
Diagnostic code No.
Meter display
Procedure
Item/components and
probable cause
5 Sensor installation status
- Check the mounting sec-
tion for loose or pinched
mounting.
6 Cylinder identification sensor
malfunction
7 ECU malfunction
Fault code No.
Item
Fail-safe system
Diagnostic code No.
Meter display
Procedure
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 wire harness
ECU coupler
Check the connection of the
coupler is secure.
Remove the coupler, and
check each pin (for bending,
wear, or locking).
11
Cylinder identification sensor: no normal signals are received from
the cylinder identification sensor.
Unable to start engine
Able to drive vehicle
—
—
—
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-
201.
Replace if defective.
Replace the ECU.
12
Crankshaft position sensor: no normal signals are received from the
crankshaft position sensor.
Unable to start engine
Unable to drive vehicle
—
—
—
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.
FUEL INJECTION SYSTEM
8-56
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.
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.