Yamaha YZF-R6(V) 2006 Service Manual page 390

Fault code No. 44
Diagnostic code No.
Order Item/components and probable
cause
1 Malfunction in ECU.
Fault code No. 46
Diagnostic code No.
Order Item/components and probable
cause
1 Malfunction in rectifier/regulator
2 Open or short circuit in wire harness.
Fault code No. 50
Diagnostic code No.
Order Item/components and probable
cause
1 Malfunction in ECU.
Symptom An error is detected while reading or writing on EEPROM
(CO adjustment value).
60 EEPROM fault cylinder No.
Symptom Power supply is not normal.
— —
Symptom Faulty ECU memory. (When this malfunction is detected in
the ECU, the fault code number might not appear on the
meter.)
— —
FUEL INJECTION SYSTEM
Check or maintenance job
• Set the faulty cylinder's exhaust
gas volume.
1. Execute the diagnostic mode
(Code No. 60) to check the
faulty cylinder number. (If
multiple cylinders are defec-
tive, the numbers of the
faulty cylinders are displayed
alternately at 2-second inter-
vals.)
2. Execute the CO adjustment
mode and set the exhaust
gas volume of the faulty cyl-
inder to "0".
Refer to "ADJUSTING THE
EXHAUST GAS VOLUME"
on page 3-7.
• Replace ECU if it does not re-
cover from the malfunction.
Check or maintenance job
• Replace if defective.
Refer to "CHARGING SYS-
TEM" on page 8-13.
• 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.
Check or maintenance job
Replace the ECU.
NOTE:
Be sure to turn the main switch to
"OFF" before replacing the ECU.
8-67
Reinstatement
method
Turning the
main switch to
"ON".
(Readjust the
exhaust gas
volume after it
is reinstated.)
Reinstatement
method
Starting the en-
gine and oper-
ating it at idle.
Reinstatement
method
Turning the
main switch to
"ON".