Yamaha R6 2009 Service Manual page 390

Fault code No. 44
Diagnostic code No.
Item/components and probable
Order
cause
1 Malfunction in ECU.
Fault code No. 46
Diagnostic code No.
Item/components and probable
Order
cause
1 Malfunction in rectifier/regulator
2 Open or short circuit in wire harness.
Fault code No. 50
Diagnostic code No.
Item/components and probable
Order
cause
1 Malfunction in ECU.
An error is detected while reading or writing on EEPROM
Symptom
(CO adjustment value).
60 EEPROM fault cylinder No.
Check or maintenance job
• Set the faulty cylinder's
• Replace ECU if it does not
Symptom Power supply is not normal.
— —
Check or maintenance job
• Replace if defective.
• Repair or replace if there is an
Faulty ECU memory. (When this malfunction is detected
Symptom in the ECU, the fault code number might not appear on
the meter.)
— —
Check or maintenance job
Replace the ECU.
TIP
Be sure to turn the main switch
to "OFF" before replacing the
ECU.
8-67
FUEL INJECTION SYSTEM
exhaust gas volume.
1. Execute the diagnostic
mode (Code No. 60) to
check the faulty cylinder
number. (If multiple cylin-
ders are defective, the num-
bers of the faulty cylinders
are displayed alternately at
2-second intervals.)
2. Execute the CO adjust-
ment mode and set the
exhaust gas volume of the
faulty cylinder to "0".
recover from the malfunction.
Refer to "CHARGING SYS-
TEM" on page 8-13.
open or short circuit in the
charging system's wiring.
Refer to "CHARGING SYS-
TEM" on page 8-13.
Reinstatement
method
Turning the
main switch to
"ON".
(Readjust the
exhaust gas vol-
ume after it is
reinstated.)
Reinstatement
method
Starting the
engine and
operating it at
idle.
Reinstatement
method
Turning the
main switch to
"ON".