Yamaha Diagnostic Tool - Yamaha YZ450FX 2019 Owner's Service Manual

EAM30285

YAMAHA DIAGNOSTIC TOOL

This model uses the Yamaha diagnostic tool to identify malfunctions.
For information about using the Yamaha diagnostic tool, refer to the operation manual that is included
with the tool.
TIP
A generic scan tool can also be used to identify malfunctions.
Features of the Yamaha diagnostic tool
You can use the Yamaha diagnostic tool to identify malfunctions quicker than with conventional meth-
ods.
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
Diagnosis of malfunction:
Diagnosis of function:
Dynamic inspection:
Active test:
Maintenance record:
Recall search:
Monitoring:
Logging:
CO adjustment:
Reprogram ECU:
Writing VIN/frame number:
View logs:
However, the Yamaha diagnostic tool cannot be used to freely change the basic vehicle functions, such
as adjusting the ignition timing.
Yamaha diagnostic tool USB (US)
90890-03257
Yamaha diagnostic tool (A/I)
90890-03262
OBD/ GST Leadwire kit
90890-03249
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.
Check the electric component condition automatically.
Manually adjust injection duration and/or switch some actuators for
troubleshooting.
Store the inspection history into the Yamaha diagnostic tool application.
Search the recall campaign information.
Displays a graph of sensor output values for actual operating condi-
tions.
Records and saves the sensor output value in actual driving conditions.
Adjust the concentration of CO admissions during idling.
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.
Write the VIN/frame number in the ECU.
Displays the logging data.
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FUEL INJECTION SYSTEM