Yamaha FJR13AEV(C) Service Manual page 658

YCC-S (Yamaha Chip Controlled-Shift) SYSTEM (FJR13AE only)
Fault code No. Sh_ _19
Order Item/components and probable
cause
1 Connections
• Wire harness MCU (motor control
unit) coupler
• Shift actuator sensor coupler
2 Open or short circuit in wire harness.
3 Defective shift actuator sensor.
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 Output signal of shift actuator sensor is abnor-
mal.
Check or maintenance job
• 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.
• Repair or replace if there is an
open or short circuit.
• Between shift actuator sensor
coupler and MCU (motor con-
trol unit) coupler.
(green/yellow–green/yellow)
(blue–blue)
(black/blue–black/blue)
• Replace the shift actuator.
8-187
Reinstatement
method
Turning the
main switch to
"OFF".
See NOTE.