Yamaha 2013 FJR1300AS Service Manual page 513

ECU/MCU using the communication cable, you can display information that is necessary for identifying
malfunctions and for maintenance to display on the computer. The displayed information includes the
sensor output data and information recorded in the ECU/MCU.
Functions of the Yamaha diagnostic tool
Fault diagnosis mode:
Function diagnostic mode:
Inspection mode:
CO adjustment mode:
Monitoring mode:
Logging mode:
View log:
ECU/MCU rewrite:
However, the diagnostic tool cannot be used to freely change the basic vehicle functions, such as
adjusting the ignition timing.
Connecting the Yamaha diagnostic tool
Remove the protective cap, and then connect the Yamaha diagnostic tool to the coupler "1".
TIP
When the Yamaha diagnostic tool is connected to the vehicle, the operation of the multi-function meter
and indicators will be different from the normal operation.
Fault codes recorded on the ECU/MCU are read, and the con-
tents are displayed.
The freeze frame data (FFD) is the operation data when a mal-
function was detected. This data can be used to identify when
the malfunction occurred and check the engine conditions and
running conditions when it occurred.
Check the operation of the output value of each sensor and actu-
ator.
Determine whether each sensor or actuator is functioning prop-
erly.
Adjust the concentration of CO admissions during idling.
Displays a graph of sensor output values for actual operating
conditions.
Records and saves the sensor output value in actual driving con-
ditions.
Displays the logging data.
If necessary, the ECU/MCU is rewritten using ECU/MCU rewrite
data provided by Yamaha.
Ignition timing adjustment, etc. cannot be changed from the vehi-
cle's original state.
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FUEL INJECTION SYSTEM