Troubleshooting Details; Normal Signals Are Not Received From The Cylinder Identification Sensor - Yamaha 2009 YZF-R1 (Y) Service Manual

EAS14B1085

TROUBLESHOOTING DETAILS

This section describes the measures per fault code number displayed on the meter. Check and ser-
vice the items or components that are the probable cause of the malfunction following the order
given.
After the check and service of the malfunctioning part has been completed, reset the meter display
according to the reinstatement method.
Fault code No.:
Code number displayed on the meter when the engine failed to work normally.
Diagnostic code No.:
Diagnostic code number to be used when the diagnostic mode is operated. Refer to "DIAGNOSTIC
MODE" on page 8-38.
Fault code No.
Symptom
Fail-safe action
Diagnostic monitor-
ing code No.
Meter display
Checking method
Item/components and
probable cause
1 Connection of cylinder identi-
fication 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).
3 Connection of ignition system
sub-wire harness coupler
Check the connection of the
coupler is secure.
Remove the coupler, and
check each pin (for bending,
wear, or locking).
4 Continuity of wire harness
11
Normal signals are not received from the cylinder identification sen-
sor.
Engine startup: Impossible
Riding: Possible
—
—
—
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.
Poor connection → Connect
it securely, or repair/replace
the wire harness.
Open or short circuit →
Replace the wire harness.
White/Black–White/Black
Black/Blue–Black/Blue
Blue–Blue
FUEL INJECTION SYSTEM
8-45
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.
Crank the engine, and check
the fault code indication.
No fault code indicated. →
Recovered.
Fault code indicated. →
Check the next step.