Yamaha YW125Y_ Utility Trailer User Manual


 
6-11
FI
Diag-
nostic
code
Item
Data displayed on FI diagnostic tool
(reference value)
Description of action
EAS00907
Diagnostic mode table
TIP
8 Check the intake air temperature and engine temprature as close as possible to the intake air
temperature sensor and the engine temperature sensor respectively.
8 If it is not possible to check the intake air temperature, use the ambient temperature as refer-
ence.
D01
D03
D05
D07
D08
D09
D11
D20
D30
D36
D52
D54
D60
D61
D62
D70
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 accumulation of the vehicle pulses
that are generated when the tire is spun.
Displays the lean angle cut-off switch values.
Displays the fuel system voltage (battery volt-
age).
Displays the engine temperature sensor.
Check the engine temperature sensor in the
cylinder head.
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 in-
jector is actuated five times per second and the
“WARNING” LED (orange) comes on.
When the “MODE” button is pressed, the head-
light relay 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.
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.
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.
Throttle angle
Intake air pressure
Intake air temperature
Vehicle speed pulse
Lean angle cut-off
switch
Fuel system voltage
(battery voltage)
Engine temperature
sensor
Sidestand switch
Ignition coil
Fuel injector
Headlight relay
ISC (idle speed con-
trol) valve
EEPROM fault code
display.
Malfunction history
code display
Malfunction history
code erasure
Control number
0-125 degrees
Fully closed position (14-20)
Fully open position (97-107)
Compare it to the value displayed on the
Fl diagnostic tool.
Compare it to the value displayed on the
Fl diagnostic tool.
(0-999; resets to 0 after 999)
OK if the numbers appear on the FI diag-
nostic tool.
Upright: 0.4 V
Overturned: 1.4V
0-18.7 V
Normally, approximately 12.0 V
Compare it to the value displayed on the
FI diagnostic tool.
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 relay 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
FUEL INJECTION SYSTEM
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