Yamaha YZFR1Y(C) 2009 Service Manual page 454

Fault code No.
Symptom
Fail-safe action
Diagnostic monitor-
ing code No.
Meter display
Checking method
Item/components and
probable cause
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 Continuity of wire harness
4 Ignition coil installation status Check the mounting section
5 Ignition coil malfunction
(Check the resistance of igni-
tion coil #3.)
6 ECU malfunction
35
Ignition coil #3 primary lead malfunction
Engine startup: Possible (depending on the number of failed cylin-
ders)
Riding: Possible (depending on the number of failed cylinders)
D:32
Actuates the cylinder-#3 ignition coil five times at one-second inter-
vals.
Illuminates the engine trouble warning light.
Check the spark five times.
• Connect an ignition checker.
Check or maintenance job
Poor connection → Connect
it securely or replace the wire
harness.
Open or short circuit →
Replace the wire harness.
Orange/Green–Orange/
Green
for a loose or pinched mount-
ing.
Make sure that the mounting
position is correct.
Refer to "CHECKING THE
IGNITION COILS" on page 8-
116.
Ignition coil inspection
method
Check in the diagnostic mode
(Code No. 32).
If not ignited, replace the
defective ECU.
8-67
FUEL INJECTION SYSTEM
Sensor inspection proce-
Start and idle the engine for
approximately 5 seconds.
Then, check the fault code
indication.
No fault code indicated. →
Recovered.
Fault code indicated. →
Check the next step.
Start and idle the engine for
approximately 5 seconds.
Then, check the fault code
indication.
No fault code indicated. →
Recovered.
Fault code indicated. →
Check the next step.
Start and idle the engine for
approximately 5 seconds.
Then, check the fault code
indication.
No fault code indicated. →
Recovered.
Fault code indicated. →
Check the next step.
Start and idle the engine for
approximately 5 seconds.
Then, check the fault code
indication.
No fault code indicated. →
Recovered.
Fault code indicated. →
Check the next step.
dure