Yamaha FJR13AY 2009 Service Manual page 667

YCC-S (Yamaha Chip Controlled-Shift) SYSTEM (FJR13AE only)
Fault
Symptom
code No.
Braking signal is not
Sh_ _47 detected while brak-
ing.
Improper engine idling
Sh_ _48*
speed adjustment.
Engine idling speed is
Sh_ _49* too high when vehicle
is started.
Shift actuator sensor
Sh_ _51
signal is abnormal.
Main switch signal is
Sh_ _52*
abnormal.
*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. Refer to "Diagnostic code table (Diagnostic code No. Sh_ _61)".
ET3P66063
TROUBLESHOOTING METHOD
TIP
If the engine trouble indicator "1", YCC-S indica-
tor "2", and engine trouble warning light "3" all
come on, malfunctions have been detected in
both the fuel injection system and the YCC-S
system. If this occurs, the fault codes for the fuel
injection system take priority over those for the
YCC-S system, so only the fuel injection system
fault codes will appear in the multi-function dis-
play. The fault codes for the YCC-S system will
be displayed in the multi-function display after all
of the fault codes for the fuel injection system
have been deleted using the reinstatement
method.
Malfunction detecting condition
No braking signal is received by
MCU (motor control unit) when ve-
hicle is braking.
Engine speed at engine start-up
exceeds the set limit.
Engine speed when vehicle is
starting off exceeds the set limit.
Shift rod is not in neutral position
when shift actuator is not operat-
ing.
Main switch "OFF" signal is re-
ceived even though engine is run-
ning.
3
SHIFT
1
2
8-184
Able/un-
able to start
Able
Unable
Able
Unable
Able
The YCC-S indicator and warning light come
on.
1. Check:
• Fault code number
M MMM M MMM M M MMM M M MMM M
a. Check the fault code number displayed on
the meter and diagnostic code Sh_ _61.
Refer to "Diagnostic code table (Diagnostic
code No. Sh_ _61)".
b. Identify the faulty system with the fault code.
Refer to "Self-Diagnostic Function table".
L LLL L LLL L L LLL L L LLL L
2. Check and repair the probable cause of the
malfunction.
Refer to "TROUBLESHOOTING DETAILS"
on page 8-190.
3. Perform the reinstatement action for the
YCC-system.
Refer to "Reinstatement method" in the ap-
propriate table in "TROUBLESHOOTING
DETAILS".
4. Turn the main switch to "OFF" and back to
"ON", then check that no fault code number is
displayed.
TIP
If fault codes are displayed, repeat steps (1) to
(4) until no fault code number is displayed.
Able/un-
able to
change the
shift
Able
Unable
Able
Unable
Able
M MMM M M MMM M MMM
L LLL L L LLL L LLL