Yamaha FJR1300AS(X) Service Manual page 568

Fault code No. 34
Diagnostic code No.
Order Item/components and probable
cause
1 Connections
• Cylinders-#2/#3 ignition coil connec-
tor (primary coil side)
• Wire harness ECU coupler
• Front cowling wire harness coupler
2 Open or short circuit in wire harness
and/or front cowling wire harness.
3 Defective cylinders-#2/#3 ignition coil
Symptom Malfunction detected in the primary wire of the cylinders-
#2/#3 ignition coil.
d:31 Cylinders-#2/#3 ignition coil
FUEL INJECTION SYSTEM
Check or maintenance job
• Check the coupler for any pins
that may be pulled out.
• Check the locking condition of
the coupler.
• If there is a malfunction, repair it
and connect the coupler se-
curely.
• Repair or replace if there is an
open or short circuit.
• Between cylinders-#2/#3 igni-
tion coil connector and ECU
coupler.
(gray/red–gray/red)
• Between cylinders-#2/#3 igni-
tion coil connector and right
handlebar switch coupler.
(red/blue–red/black)
• Execute the diagnostic mode.
(Code No.d:31)
• Test the primary and secondary
coils for continuity.
• Replace if defective.
Refer to "CHECKING THE IG-
NITION COILS" on page 8-247.
8-91
Reinstatement
method
Starting the en-
gine and oper-
ating it at idle.