Yamaha MT-03 Service Manual page 311

NOTE:
• "DIAG" appears on the LCD of the FI diag-
nostic tool.
• "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 corre
sponding to the fault code number by press-
ing the "UP" and "DOWN" buttons.
NOTE:
• The diagnostic code number appears on the
LCD (D01-D70).
• To decrease the selected diagnostic code
number, press the "DOWN" button. Press the
"DOWN" button for 1 second or longer to au-
tomatically decrease the diagnostic code
numbers.
• 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.
FI Diagnostic Tool
D03 :
7. Verify the operation of the sensor or actua-
tor.
• Sensor operation
The data representing the operating condi-
tions of the sensor appear on the LCD.
• Actuator operation
Set the engine stop switch to "OFF" and
then to "RUN".
8. Turn the main switch to "OFF" to cancel the-
diagnostic mode.
9. Disconnect the FI diagnostic tool and con-
nect the self-diagnosis signal connector.
101
FUEL INJECTION SYSTEM
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