HYOSUNG Aquila GT250 Ej Service Manual page 30

SELF-DIAGNOSIS FUNCTION
The self-diagnosis function is incorporated in the ECU.
The function has two modes, "USER MODE" and "DEALER MODE".
The user can be notified by the LCD display panel
To check the function of the individual EI system devices, the dealer mode is prepared.
In this check, the special tool and additional operations is necessary to read the code of the malfunction items.
USER MODE
In case of
the LCD display panel
on and remains lit when the ignition switch is set to "ON" position with the engine stopped as a test of injection system
operation.
As soon as the engine starts, the LCD display panel
should go out.
If the fuel injection system fails,
A the LCD display panel
does not come on
when the ignition switch is set to "ON" position with the engine stopped.
B the LCD display panel
on and remains lit
after the engine start.
and the "FI" check lamp "
,
indicates "FI" letters and speedometer alternately, and the "FI" check lamp "
does not indicate "FI" letters and speedometer alternately, and the "FI" check lamp "
indicates "FI" letters and speedometer alternately, and the "FI" check lamp "
indicates speedometer continuously and "FI" check lamp "
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EI SYSTEM DIAGNOSIS 4-1-12
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