Yamaha 2009 XP500Y TMAX, Service Manual

Page: 332 / 386

FUEL INJECTION SYSTEM
8-35
EAS27431
DIAGNOSTIC MODE
Setting the diagnostic mode
1. Turn the main switch to “OFF” and set the engine stop switch to “
”.
2. Disconnect the wire harness coupler from the fuel pump.
3. Simultaneously press and hold the “SELECT” and “RESET” buttons, turn the main switch to “ON”,
and continue to press the buttons for 8 seconds or more.
TIP
• All displays on the meter disappear except the clock and odometer/tripmeter displays.
• “dIAG” appears on the odometer/tripmeter LCD.
4. Simultaneously press the “SELECT” and “RESET” buttons for 2 seconds or more to execute the se-
lection.
5. Set the engine stop switch to “ ”.
6. Select the diagnostic code number corresponding to the fault code number by pressing the “SE-
LECT” and “RESET” buttons.
TIP
• To decrease the selected diagnostic code number, press the “RESET” button. Press the “RESET”
button for 1 second or longer to automatically decrease the diagnostic code numbers.
• To increase the selected diagnostic code number, press the “SELECT” button. Press the “SELECT”
button for 1 second or longer to automatically increase the diagnostic code numbers.
7. Verify the operation of the sensor or actuator.
• Sensor operation
The data representing the operating condition of the sensor appears on the odometer/tripmeter
LCD.
• Actuator operation
Set the engine stop switch to “ ” to operate the actuator.
TIP
If the engine stop switch is set to “ ”, set it to “ ”, and then set it to “ ” again.
“d:70 d:01”
“d:01 d:70”