HYOSUNG Aquila GT250 Ej, Service Manual

Page: 71 / 122

70
4-1-53 EI SYSTEM DIAGNOSIS
Is the “FI” check lamp lit?
NO
LY or OB wire open or shorted to
ground, or poor
or
connection of ECU coupler.
If wire and connection are OK,
intermittent trouble or faulty ECU.
Recheck each terminal and wire
harness for open circuit and poor
connection.
Replace the instrument panel with a
new one.
B15 G3
DETECTED CONDITION POSSIBLE CAUSE
“FI” check lamp circuit open and short.
“FI” check lamp malfunction.
ECU malfunction.
Refer to page 48 [4-1-31]
“0650” “FI” CHECK LAMP CIRCUIT MALFUNCTION
LCD (DISPLAY) INDICATION “FI” CHECK LAMP INDICATION
INSPECTION
1) Remove the frame cover.
2) Turn the ignition switch to the “OFF” position.
3) Disconnect the instrument panel lead wires.
4-1)
Connect the battery terminal to the R (2 pins
coupler) wire and O (9 pins coupler) wire of the
instrument panel and the battery
terminal to
the BW (9 pins coupler) wire of the instrument
panel.
And then connect the LY (2 pins coupler) wire of
the instrument panel to the battery
terminal
directly.
4-2)
Connect the battery terminal to the R (1 pins coupler) wire and O (9 pins coupler) wire of the instrument
panel and the battery terminal to the BW (3 pins coupler) wire of the instrument panel.
And then connect the LY (9 pins coupler) wire of the instrument panel to the battery terminal directly.
4-3) &
Connect the battery terminal to the R (3 pins coupler) wire and O (9 pins coupler) wire of the instrument
panel and the battery terminal to the BW (9 pins coupler) wire of the instrument panel.
And then connect the LY (3 pins coupler) wire of the instrument panel to the battery terminal directly.
YES
ECU Coupler
Gray
Black
Black