Yamaha YZF-R1(B) 2012 Service Manual page 465

Fault code No.
Symptom
Fail-safe action
Diagnostic monitor-
ing code No.
Meter display
Checking method
Item/components and
probable cause
6 Ignition coil malfunction
(Check the resistance of igni-
tion coil #1.)
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 ignition coil
coupler
Check the connection of the
coupler is secure.
Remove the coupler, and
check each pin (for bending,
wear, or locking).
33
Ignition coil #1 primary lead malfunction
Engine startup: Possible (depending on the number of failed cylin-
ders)
Riding: Possible (depending on the number of failed cylinders)
D:30
Actuates the cylinder-#1 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
Refer to "CHECKING THE
IGNITION COILS" on page 8-
136.
Ignition coil inspection
method
Check in the diagnostic mode
(Code No. 30).
If not ignited, replace the
defective ECU.
34
Ignition coil #2 primary lead malfunction
Engine startup: Possible (depending on the number of failed cylin-
ders)
Riding: Possible (depending on the number of failed cylinders)
D:31
Actuates the cylinder-#2 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 repair/replace
the wire harness.
FUEL INJECTION SYSTEM
8-68
Sensor inspection proce-
dure
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.
Sensor inspection proce-
dure
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.