Yamaha XF50W Service Manual page 252

OPOWER OWARNING
Fl Diagnostic Tool ©YAMAHA
D03: 101
o o o
JP MODE DOWN
FUEL INJECTION SYSTEM
Setting the diagnostic mode
1. Turn the main switch to "OFF" and the en-
gine stop switch to "RUN"..
2. Disconnect the self diag signal connector
1 , and then connect the Fl diagnostic-tool
2 as shown.
3. While press the "MODE" button, turn the
main switch to "ON".
NOTE:
8 "DIAG" appears on the LCD of the Fl diag-
nostic tool.
8 "POWER" LED (Green) comes on.
4. Press the "UP" button to select the CO ad-
justment mode "CO" or the diagnostic mode
"DIAG".
5. After selecting "DIAG", press the "MODE"
button.
6. Select the diagnostic code number that ap-
plies to the item that was verified with the
fault code number by pressing the "UP" and
"DOWN" buttons.
NOTE:
8 The diagnostic code number appears on the
LCD (D01-D70).
8 To decrease the selected diagnostic code
number, press the "DOWN" button. Press
the "DOWN" button for 1 second or longer
to automatically decrease the diagnostic
code numbers.
8 To increase the selected diagnostic code
number, press the "UP" button. Press the
"UP" button for 1 second or longer to auto-
matically increase the diagnostic code num-
bers.
7. Verify the operation of the sensor or actua-
tor.
8Sensor operation
The data representing the operating con-
ditions of the sensor appears on the LCD.
8Actuator operation
Press the "MODE" button to.operate the
actuator.
8. Turn the main switch to "OFF" to cancel the
diagnostic mode.
9. Disconnect the Fl diagnostic tool and con-
nect the self diag signal connector.
7-9
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