Yamaha XT660Z 2008 Service Manual page 311

EAS00907
Diagnostic mode table
Switch the meter display from the regular mode to the diagnostic mode. To switch the display, refer
to "DIAGNOSTIC MODE".
NOTE:
• Check the intake air temperature and coolant temperature as close as possible to the intake air tem-
perature sensor and the coolant temperature sensor respectively.
• If it is not possible to check the intake air temperature, use the ambient temperature as reference.
Diagnostic
Item
code
Throttle angle
D01
Intake air pressure
D03
Intake air temperature
D05
Coolant temperature
D06
Vehicle speed pulse
D07
Lean angle cut-off switch
D08
Fuel system voltage
D09
(battery voltage)
Sidestand switch
D20
Neutral switch
D21
Ignition coil
D30
Fuel injector
D36
Air induction system
D48
Fuel injection system
relay
D50
Action
Displays the throttle angle.
• Check with throttle fully closed.
• Check with throttle fully open.
Displays the intake air pressure.
Set the engine stop switch to "
• Generate the pressure difference by cranking the
engine with the start switch, but do not start the
engine.
Displays the intake air temperature.
• Check the temperature in the air filter case.
Displays the coolant temperature.
• Check the coolant temperature.
Displays the accumulation of the vehicle speed
pulses that are generated when the tire is spun.
Displays the lean angle cut-off switch values.
Displays the fuel system voltage (battery voltage).
Set the engine stop switch to "
Displays that the switch is on or off. (When the gear
is in a position other than neutral.)
Displays that the switch is on or off.
The engine stop switch is set to "
coil operates 5 times every second and the engine
trouble warning light comes on.
• Connect an ignition checker to the spark plug cap.
• If the engine stop switch is set to "
, and then set it to
The engine stop switch is set to "
tor operates 5 times every second and the engine
trouble warning ligh t comes on.
• If the engine stop switch is set to "
" ", and then set it to " " again.
The engine stop switch is set to "
tion system solenoid operates 5 times every second
and the engine trouble warning light comes on.
• If the engine stop switch is set to "
" ", and then set it to " " again.
The engine stop switch is set to "
tion system relay operates 5 times every second
the engine trouble warning light comes on (on
relay is operating, off when relay is not operat ing).
• If the engine stop switch is set to "
" ", and then set it to " " again.
7-27
FUEL INJECTION SYSTEM
FI diagnostic tool (reference value)
0 ~ 125 degrees
• Fully closed (15 ~ 17 degrees)
• Fully open (97 ~ 100 degrees)
When the engine is stopped:
". Atmospheric pressure 101.3 kPa
(760 mmHg, 30 inHg)
When cranking the engine with start
switch:
1.3 ~ 26.6 kPa
(10 ~ 200 mmHg, 0.4 ~ 7.9 inHg)
Compare the temperature in the air
filter case to the value displayed on
the diagnostic tool.
Compare the coolant temperature to
the value displayed on the
diagnostic tool.
(0 ~ 199; resets to 0 after 199)
OK if the numbers appear on the
diagnostic tool.
Upright: 0.4 ~ 1.4 V
Overturned: 3.7 ~ 4.4 V
Approximately 12.0 V
".
Stand retracted: On
Stand extended: Off
Neutral: On
In gear: Off
", the ignition Check that sparks are generated 5
times with the engine stop switch is
set to "
", set it to
again.
", the fuel injec- Check that the operating sound of the
fuel injector is generated 5 times
when the engine stop switch is set to
", set it to " ".
", the air induc- Check that the operating sound of the
air induction system solenoid is gen-
erated 5 times when the engine stop
", set it to switch is set to "
", the fuel injec- Check that the operating sound of the
and fuel injection system relay is gener-
ated 5 times when the engine stop
when
switch is set to "
", set it to
Data displayed on the
".
".
".