Yamaha R1 Series 2015 Service Manual page 534

Features of the Yamaha diagnostic tool
You can use the Yamaha diagnostic tool to identify malfunctions quicker than with conventional-
methods.
By connecting the adapter interface, which is connected to the USB port of a computer, to a vehicle's
ECU using the communication cable, you can display information that is necessary for identifying mal-
functions and for maintenance to display on the computer. The displayed information includes the sen-
sor output data and information recorded in the ECU.
Functions of the Yamaha diagnostic tool
Fault diagnosis mode:
Function diagnostic mode:
Inspection mode:
CO adjustment mode:
Monitoring mode:
Logging mode:
View log:
ECU rewrite:
However, the diagnostic tool cannot be used to freely change the basic vehicle functions, such as ad-
justing the ignition timing.
Connecting the Yamaha diagnostic tool
Remove the protective cap "1", and then connect the Yamaha diagnostic tool to the coupler.
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.
Yamaha diagnostic tool
90890-03239
Fault codes recorded on the ECU are read, and the contents are dis-
played.
The freeze frame data (FFD) is the operation data when a malfunction
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 actuator.
Determine whether each sensor or actuator is functioning properly.
Adjust the concentration of CO admissions during idling.
Displays a graph of sensor output values for actual operating condi-
tions.
Records and saves the sensor output value in actual driving conditions.
Displays the logging data.
If necessary, the ECU is rewritten using ECU rewrite data provided by
Yamaha.
Ignition timing adjustment, etc. cannot be changed from the vehicle's
original state.
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FUEL INJECTION SYSTEM