Yamaha FJR1300AS(X) Service Manual page 690

YCC-S (Yamaha Chip Controlled-Shift) SYSTEM (FJR1300AS
Fault code No. Sh_ _25
Order Item/components and probable
cause
1 Malfunction in MCU (motor control
unit).
Fault code No. Sh_ _26
Order Item/components and probable
cause
1 Clutch fluid
2 Air in hydraulic clutch system
NOTE:
If the main switch is turned to "OFF", the fault code number will disappear from the display and will not
be displayed again when the main switch is turned back to "ON". Therefore, use the engine stop switch
to stop the engine, not the main switch. If the fault code number has disappeared, activate the diagnos-
tic mode and select diagnostic code No. Sh_ _61. The fault code numbers can be confirmed in the mal-
function history.
Symptom Error has occurred in the actuator drive circuit
in MCU (motor control unit) when main switch is
turned to "ON".
Check or maintenance job
Replace the MCU (motor control
unit).
Symptom Abnormal clutch movement is detected during
check when main switch is turned to "ON".
Check or maintenance job
• Check for clutch fluid leakage.
• Check the clutch fluid level.
Refer to "CHECKING THE
CLUTCH FLUID LEVEL
(FJR1300AS)" on page 3-18.
• Check the clutch stroke.
• Bleed the hydraulic clutch.
Refer to "BLEEDING THE HY-
DRAULIC CLUTCH SYSTEM
(FJR1300AS)" on page 3-19.
8-213
only)
Reinstatement
method
Replacing the
MCU (motor
control unit).
Reinstatement
method
Turning the
main switch to
"OFF".
See NOTE.