Yamaha XF50W Service Manual page 254

EAS00907
Diagnostic mode table
NOTE:
8 Check the intake air temperature and coolant temprature as close as possible to the intake air
temperature sensor and the coolant temperature sensor respectively.
8 If it is not possible to check the intake air temperature, use the ambient temperature as refer-
ence.
Diag-
Item
nostic
code
Throttle angle
D01
D03 Intake air pressure
D05 Intake air temperature
D06 Coolant temperature
Vehicle speed pulse
D07
D08 Lean angle
switch
D09 Fuel system voltage
(battery voltage)
D20 Sidestand switch (Op-
tion)
Ignition coil
D30
Fuel injector
D36
Headlight
D52
ISC (idle speed con-
trol) valve
D54
E2PROM fault code
display.
D60
Malfunction
code display
D61
Malfunction
code erasure
D62
D70 Control number
FUEL INJECTION SYSTEM
Description of action
Displays the throttle angle.
• Check with throttle fully closed.
• Check with throttle fully open.
Displays the intake air pressure.
• Check the pressure in the intake manifold.
Displays the intake air temperature.
• Check the temperature in the intake manifold.
Displays the coolant temperature.
• Check the temperature of the coolant.
Displays the accumulation of the vehicle pulses
that are generated when the tire is spun.
cut-off Displays the lean angle cut-off switch values.
Displays the fuel system voltage (battery volt-
age).
Displays that the switch is ON or OFF.
When the "MODE" button is pressed, the ignition
coil is actuated five times per second and the
"WARNING" LED (orange) comes on.
• Connect an ignition checker.
When the "MODE"-button is pressed, the fuel
injector is actuated five times per second and the
"WARNING" LED (orange) comes on.
When the "MODE" button is pressed, the head-
light is actuated five times every 5 seconds and
the engine trouble warning light comes on. (ON 2
seconds, OFF 3 seconds)
When the the "MODE" button is pressed, the ISC
(idle speed control) valve fully closes, and then it
opens until it is at the standby opening position
when the engine is started. This operation takes
approximately 3 seconds until it is completed.
• Transmits the abnormal portion of the data in
the E2PROM that has been detected as a fault
code 44.
• If multiple malfunctions have been detected,
different codes are displayed at 2-second in-
tervals, and this process is repeated.
history • Displays the codes of the history of the self-
diagnosis malfunctions (i.e., a code of a mal-
function that occurred once and which has been
corrected).
• If multiple malfunctions have been detected,
different codes are displayed at 2-second in-
tervals, and this process is repeated.
history • Displays the total number of codes that are
being detected through self diagnosis and the
fault codes in the past history.
• Erases only the history codes when the
"MODE" button is pressed.
Displays the program control number.
0-125 degrees
•
•
Compare it to the value displayed on the
Fl diagnostic tool.
Compare it to the value displayed on the
Fl diagnostic tool.
Compare it to the value displayed on the
FI diagnostic tool.
(0-999; resets to 0 after 999)
OK if the numbers appear on the FI diag-
nostic tool.
Upright: 0.4-1.4 V
Overturned: 3.7-4.4V
0-18.7 V
Normally, approximately 12.0 V
Stand retracted: ON
Stand extended: OFF
Check that spark is generated, 5 times
with the "MODE" button press.
Check the operating sound of the fuel in-
jector five times with "MODE" button
press.
Check the headlight operating 5 times with
the "MODE" button is pressed.
The ISC (idle speed control) valve unit
vibrates when the ISC (idle speed con-
trol) valve operates.
01 CO adjustment value is detected.
(00) Displays when there is no malfunc-
tion.
12-61
(00) Displays when there is no malfunc-
tion.
00-18
(00) Dispiays when there is no malfunc-
tion.
00-254
7-11
FI
Data displayed on FI diagnostic tool
(reference value)
Fully closed position (14-20)
Fully open position (97-107)
ifl