Cylinder-#2 Ignition Coil - Yamaha R1 Series 2015 Service Manual

Fault code No.
Item
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-#1
ignition coil.
Check for looseness or pinch-
ing.
5 Defective cylinder-#1 ignition
coil.
6 Malfunction in ECU.
Fault code No. 34
Fault code No.
Item
Fail-safe system
Diagnostic code No.
Actuation
Procedure
Item Probable cause of
malfunction and check
33
Cylinder-#1 ignition coil: open or short circuit detected in the pri-
mary lead of the cylinder-#1 ignition coil.
Improperly connected
nect the coupler securely or
replace the wire harness.
Open or short circuit
the wire harness.
Between cylinder-#1 ignition coil
coupler and ECU coupler.
orange–orange
Improperly installed ignition coil
Reinstall or replace the igni-
tion coil.
Measure the primary coil resis-
tance of the cylinder-#1 ignition
coil.
Replace if out of specification.
Refer to "CHECKING THE
IGNITION COILS" on page
8-186.
Execute the diagnostic mode.
(Code No. 30)
No spark Replace the ECU.
Refer to "REPLACING THE
ECU (Engine Control Unit)" on
page 8-180.
34
Cylinder-#2 ignition coil: open or short circuit detected in the pri-
mary lead of the cylinder-#2 ignition coil.
Able to start engine (depending on the number of faulty cylinders)
Able to drive vehicle (depending on the number of faulty cylinders)
31
Actuates the cylinder-#2 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
8-73
FUEL INJECTION SYSTEM
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.
Confirmation of service com-
pletion