Diagnostic Mode - Yamaha Star XVS950A 2009 Service Manual

EAS27420

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/trip meter/fuel reserve trip
meter/clock displays.
• "dIAG" appears on the odometer/trip meter/fuel reserve trip meter/clock LCD.
4. 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 LCD.
5. Set the engine stop switch to "
6. 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 "SELECT" switch. Press the
"SELECT" switch for 1 second or longer to automatically decrease the diagnostic code numbers.
• To increase the selected diagnostic code number, press the "SELECT" switch. Press the
"SELECT" switch 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 conditions of the sensor appears on the odometer/trip
meter/fuel reserve trip meter/clock LCD.
• Actuator operation
Set the engine stop switch to "
TIP
If the engine stop switch is set to "
8. Turn the main switch to "OFF" to cancel the diagnostic mode.
".
" to operate the actuator.
", set it to " ", and then set it to "
7-32
FUEL INJECTION SYSTEM
".
" again.