HYOSUNG Aquila GT250 Ej, Service Manual

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EI SYSTEM DIAGNOSIS 4-1-16
The “FI” check lamp “ ” comes on 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, this lamp should go out.
If the fuel injection system fails,
the red “FI” check lamp “ ”
does not come on when the ignition switch is set to “ON” position with the engine stopped or
fail to go out after the engine start.
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 only be notified by the “FI” check lamp “ ” .
To check the function of the individual EI system devices, the dealer mode is prepared.
In this check, the additional operations is necessary to read the code of the malfunction items.
USER MODE