FI
Setting the diagnostic mode
1. Set the starter switch to OFF and the stop engine
switch to ON.
2. Disconnect the connector of the self-diagnostic
1
and connect the diagnostic tool
2
as shown.
FUEL INJECTION SYSTEM
7. Check the sensor or actuator operation.
• Sensor operation
The data representing the sensor operational
conditions are shown on the display.
• Actuator operation
Press the “MODE” button to activate the
actuator.
8. Set the starter switch to “OFF” to cancel the
diagnostic mode.
9. Disconnect the F.I. diagnostic tool and return to
the original connection.
• “DIAG” appears on the tool display.
• The “POWER” LED (green) is illuminated.
NOTE:
5. After selecting "DlAG", press the “MODE” button.
6. Select the diagnostic code number which applies
to the item detected with the fault code by
pressing the "UP" and "DOWN" buttons.
The diagnostic code number appears on the
display (01 ~ 70).
Disconnect the fuel pump connector to prevent
fuse blowing.
V
V
V
V
V
WARNING
3. At the same time, press the "MODE" button
and turn the starter switch to ON.
1
2
6-9
4. Press the "UP" button to select the adjusting
mode "CO" or the diagnostic mode "DlAG".
NOTE:
•
To decrease the selected diagnostic code
number, press "DOWN" button. Pressing this
button for 1 second or more will automatically
decrease the diagnostic code numbers.
•
To increase the selected diagnostic code
numbers, press "UP" button. Pressing this button
for 1 second or more will automatically increase
the diagnostic code numbers.
Summary of Contents for YBR250 2007
Page 1: ...YBR250 SERVICE MANUAL 5D1 F8197 E0 2007 ...
Page 2: ......
Page 359: ...YAMAHA MOTOR DA AMAZÔNIA LTDA ...
