Yamaha YZFR6X(C) 2008, Service Manual

Page: 390 / 434

FUEL INJECTION SYSTEM
8-67
Fault code No. 44 Symptom
An error is detected while reading or writing on EEPROM
(CO adjustment value).
Diagnostic code No. 60 EEPROM fault cylinder No.
Order
Item/components and probable
cause
Check or maintenance job
Reinstatement
method
1 Malfunction in ECU. • Set the faulty cylinder’s
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”.
• Replace ECU if it does not
recover from the malfunction.
Turning the
main switch to
“ON”.
(Readjust the
exhaust gas vol-
ume after it is
reinstated.)
Fault code No. 46 Symptom Power supply is not normal.
Diagnostic code No. — —
Order
Item/components and probable
cause
Check or maintenance job
Reinstatement
method
1 Malfunction in rectifier/regulator • Replace if defective.
Refer to “CHARGING SYS-
TEM” on page 8-13.
Starting the
engine and
operating it at
idle.
2 Open or short circuit in wire harness. • Repair or replace if there is an
open or short circuit in the
charging system’s wiring.
Refer to “CHARGING SYS-
TEM” on page 8-13.
Fault code No. 50 Symptom
Faulty ECU memory. (When this malfunction is detected
in the ECU, the fault code number might not appear on
the meter.)
Diagnostic code No. — —
Order
Item/components and probable
cause
Check or maintenance job
Reinstatement
method
1 Malfunction in ECU. Replace the ECU.
NOTE:
Be sure to turn the main switch
to “OFF” before replacing the
ECU.
Turning the
main switch to
“ON”.