Yamaha FJR13AEV(C) Service Manual page 667

YCC-S (Yamaha Chip Controlled-Shift) SYSTEM (FJR13AE only)
Fault code No. Sh_ _41
Order Item/components and probable
cause
1 Connections
• Wire harness MCU (motor control
unit) coupler
• Wire harness ECU coupler
2 Open or short circuit in wire harness.
Fault code No. Sh_ _42
Order Item/components and probable
cause
1 Connections
• Wire harness MCU (motor control
unit) coupler
• YCC-S speed sensor coupler
2 Open or short circuit in wire harness.
Symptom Coolant temperature sensor signal is abnormal.
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 ECU coupler and
MCU (motor control unit) cou-
pler.
(yellow/blue–yellow/blue)
Symptom Communication between ECU and multi-func-
tion meter is abnormal.
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 YCC-S speed sensor
coupler and MCU (motor con-
trol unit) coupler.
(yellow/blue–yellow/blue)
8-196
Reinstatement
method
Repairing the
cause of the
malfunction.
Reinstatement
method
Repairing the
cause of the
malfunction.