Yamaha FZ1-N Service Manual page 394

Fault code No.
Diagnostic code No.
Item/components and probable
Order
Connections.
• Main wire harness ECU coupler
1
Faulty battery
2
Malfunction in rectifier/regulator
3
Open or short circuit in wire harness.
4
Power supply to the fuel injection system relay is not nor-
46 Symptom
—
cause
FUEL INJECTION SYSTEM
mal.
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
securely.
• Replace or change the battery
Refer to "CHECKING AND
CHARGING THE BATTERY" on
page 8-97.
• Replace if defective.
Refer to "CHARGING SYS-
TEM" on page 8-11.
• Repair or replace if there is an
open or short circuit.
• Between battery and main
switch
(Red–Red)
• Between main switch and igni-
tion fuse
(Brown/Blue–Brown/Blue)
• Between ignition fuse and ECU
(Red/White–Red/White)
8-70
—
Reinstatement
Starting the
engine and
operating it at
idle.
method