Yamaha FJR13AEV(C) Service Manual page 644

YCC-S (Yamaha Chip Controlled-Shift) SYSTEM (FJR13AE only)
Fault
Symptom
code No.
Engine speed signal
Sh_ _31
is abnormal.
YCC-S speed sensor
Sh_ _32*
signal is abnormal.
TPS (throttle position
Sh_ _34 sensor) signal is ab-
normal.
Start switch signal is
Sh_ _35
abnormal.
Output signal of clutch
Sh_ _36 actuator sensor is ab-
normal.
Power supply to
Sh_ _37* clutch or shift actuator
motor is abnormal.
Malfunction of hand
Sh_ _38 shift lever switch (shift
up or shift down)
Ignition timing retard
Sh_ _39 output signal is abnor-
mal.
Coolant temperature
Sh_ _41 sensor signal is ab-
normal.
Communication be-
tween ECU and multi-
Sh_ _42
function meter is ab-
normal.
Communication be-
tween MCU (motor
Sh_ _43
control unit) and ABS
ECU is abnormal.
Clutch actuator sen-
Sh_ _44* sor signal is abnor-
mal.
Shift operation and
Sh_ _45* gear position do not
match.
Engine speed and
gear position sensor
Sh_ _46*
signal do not match
while vehicle is driven.
Malfunction detecting condition
Engine speed signal from ECU
does not match multi-function
meter engine speed.
YCC-S speed sensor signal does
not match multi-function meter ve-
hicle speed.
TPS (throttle position sensor) sig-
nal voltage is too low or too high
Signal is received from start switch
while vehicle is driven.
Signals received from clutch actu-
ator sensor 1 and clutch actuator
sensor 2 are different or signal
voltage is too low or too high.
Battery voltage is good, but motor
terminal voltage is too low.
Both the on and off circuits of the
hand shift lever switch (shift up or
shift down) are closed at the same
time.
Detected ignition retard signal
from MCU (motor control unit) to
ECU is abnormal.
Coolant temperature sensor signal
is too high or too low
Error detected in communication
signal between ECU and multi-
function meter.
ABS ECU continuously sends sig-
nals to activate ABS.
Clutch is completely engaged, but
signal sent from clutch actuator
sensor indicates clutch is disen-
gaged.
Gear position has not changed af-
ter shifting by shift actuator (mis-
shift occurs repeatedly).
Gear position calculated by MCU
(motor control unit) is different
from foot shift switch signal.
8-173
Able/un-
Able/un- able to
able to start change the
shift
Unable Unable
Unable Unable
Unable Able
Able Able
Unable Unable
Unable Unable
Able Able
Able Able
Able Able
Unable Able
Able Able
Unable Unable
Unable Unable
Unable Unable