Yamaha YZFR1Y(C) 2009 Service Manual page 425

EAS14B1084
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.
• "dIAG" appears on the odometer/trip meter/fuel reserve trip meter/instantaneous fuel consump-
tion/average fuel consumption LCD.
4. Press the "SELECT" switch to select the diagnostic mode "dIAG".
5. After selecting "dIAG", simultaneously press the "SELECT" switch and the "RESET" switch for 2
seconds or more to activate the diagnostic mode. The diagnostic code number "d01" appears on
the clock/stopwatch LCD.
6. Set the engine stop switch to "
7. Select the diagnostic code number corresponding to the fault code number by pressing the
"SELECT" and "RESET" switches.
TIP
• To decrease the selected diagnostic code number, press the "RESET" switch "1". Press the
"RESET" switch for 1 second or longer to automatically decrease the diagnostic code numbers.
• To increase the selected diagnostic code number, press the "SELECT" switch "2". Press the
"SELECT" switch for 1 second or longer to automatically increase the diagnostic code numbers.
8. Verify the operation of the sensor or actuator.
• Sensor operation
The data representing the operating conditions of the sensor appears on the odometer/trip
meter/fuel reserve trip meter/instantaneous fuel consumption/average fuel consumption LCD.
• Actuator operation
Set the engine stop switch to "
TIP
If the engine stop switch is set to "
9. Turn the main switch to "OFF" to cancel the diagnostic mode.
FUEL INJECTION SYSTEM
".
" to operate the actuator.
", set it to " ", and then set it to "
8-38
".
" again.