Service manual

YCC-S (Yamaha Chip Controlled-Shift) SYSTEM
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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.
Fault code No. Sh_ _14 Symptom Over current to shift actuator motor.
Order Item/components and probable
cause
Check or maintenance job Reinstatement
method
1 • Connections
• Wire harness MCU (motor control
unit) coupler
• Shift actuator motor coupler
• Check the coupler for any pins
that may be pulled out.
• Check the locking condition of
the coupler.
• If there is a malfunction, repair it
and connect the coupler se-
curely.
Turning the
main switch to
“OFF”.
See NOTE.
2 Open or short circuit in wire harness. • Repair or replace if there is an
open or short circuit.
• Between shift actuator motor
coupler and MCU (motor con-
trol unit) coupler.
(black/blue–black/blue)
(red–red)
• Between battery and YCC-S
fuse terminal.
(red–red)
• Between YCC-S fuse and MCU
(motor control unit).
(red/black–red/black)
3 YCC-S fuse • Replace if defective.
4 Stuck shift actuator motor. • Replace the shift actuator.