Yamaha R1 Series 2015 Service Manual page 557

Fault code No.
Item
Diagnostic code No.
Actuation
Procedure
Item Probable cause of
malfunction and check
1 Connection of cylinder-#4 igni-
tion coil coupler.
Check the locking condition of
the coupler.
Disconnect the coupler and
check the pins (bent or broken
terminals and locking condition
of the pins).
2 Connection of wire harness
ECU coupler.
Check the locking condition of
the coupler.
Disconnect the coupler and
check the pins (bent or broken
terminals and locking condition
of the pins).
3 Wire harness continuity.
4 Installed condition of cylinder-#4
ignition coil.
Check for looseness or pinch-
ing.
5 Defective cylinder-#4 ignition
coil.
6 Malfunction in ECU.
36
Cylinder-#4 ignition coil: open or short circuit detected in the pri-
mary lead of the cylinder-#4 ignition coil.
33
Actuates the cylinder-#4 ignition coil five times at one-second intervals.
Illuminates the engine trouble and system warning light.
Check that a spark is generated five times.
• Connect an ignition checker.
Maintenance job
Improperly connected
nect the coupler securely or
replace the wire harness.
Improperly connected
nect the coupler securely or
replace the wire harness.
Open or short circuit
the wire harness.
Between cylinder-#4 ignition coil
coupler and ECU coupler.
gray/green–gray/green
Improperly installed ignition coil
Reinstall or replace the igni-
tion coil.
Measure the primary coil resis-
tance of the cylinder-#4 ignition
coil.
Replace if out of specification.
Refer to "CHECKING THE
IGNITION COILS" on page
8-186.
Execute the diagnostic mode.
(Code No. 33)
No spark Replace the ECU.
Refer to "REPLACING THE
ECU (Engine Control Unit)" on
page 8-180.
8-76
FUEL INJECTION SYSTEM
Confirmation of service com-
Con- Start the engine and let it idle for
approximately 5 seconds.
Fault code number is not dis-
played Service is finished.
Fault code number is displayed
Go to item 2.
Con- Start the engine and let it idle for
approximately 5 seconds.
Fault code number is not dis-
played Service is finished.
Fault code number is displayed
Go to item 3.
Replace Start the engine and let it idle for
approximately 5 seconds.
Fault code number is not dis-
played Service is finished.
Fault code number is displayed
Go to item 4.
Start the engine and let it idle for
approximately 5 seconds.
Fault code number is not dis-
played Service is finished.
Fault code number is displayed
Go to item 5.
Start the engine and let it idle for
approximately 5 seconds.
Fault code number is not dis-
played Service is finished.
Fault code number is displayed
Go to item 6.
pletion