Yamaha 2007 FZ6-NA Service Manual page 427

Fault code No. 46 Symptom Power supply to the FI system relay is not normal.
Diagnostic monitor-
ing code No.
Item/components and probable
Order
Connected state of connector.
• Main wire harness ECU coupler
1
Faulty battery
2
The malfunction of the rectifier/regula-
3 tor
Open or short circuit in wire harness.
4
Fault code No. 50 Symptom
Diagnostic code No.
Item/components and probable
Order
Malfunction in ECU
1
— —
cause
Faulty ECU memory. (When this malfunction is detected
in the ECU, the fault code number might not appear on
the meter.)
— —
cause
FUEL INJECTION SYSTEM
Check or maintenance job
• Check the coupler for any pins
that may have pulled out.
• Check the locking condition of
the coupler.
• If there is a malfunction, repair it
and connect it securely.
• Replace or change the battery
Refer to "CHECKING AND
CHARGING THE BATTERY" on
page 8-114.
• 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 Fuse
(ignition)
(Brown/Blue–Brown/Blue)
• Between Fuse (ignition) and
ECU
(Red/White–Red/White)
Check or maintenance job
Replace the ECU.
8-54
Reinstate-
ment method
Starting the
engine and
operating it at
idle.
Reinstate-
ment method
Turning the
main switch
ON.