HYOSUNG AQUILA 250 FI, Руководство по обслуживанию, Страница: 36 / 90

35
FI SYSTEM DIAGNOSIS 4-1-26
▣ ▣
INSPECTION
1) Remove the front seat and frame cover.
2) Turn the ignition switch “OFF” position.
3) Check the Oxygen sensor coupler
①
for loose or
poor contacts.
“C22” OXYGEN SENSOR CIRCUIT MALFUNCTION
DETECTED CONDITION
●
Oxygen sensor, Oxygen sensor heater circuit open
or short.
● Oxygen sensor, Oxygen sensor heater malfunction.
●
ECU malfunction.
POSSIBLE CAUSE
Is OK?
NO
YES
Replace the Oxygen sensor.
ECU Coupler
⑤
�
C22
C24
C25
CODE
CODE
CODE
CODE
[ 2 2 2 2 2 2 ]
Oxygen sensor signal is not input in ECU since then
more than 120 sec. after the engine run.
①
●
BR or BW wire open or shorted
to ground, or poor
�
or
⑤
connection.
●
If wire and connection are OK,
intermittent trouble or faulty ECU.
●
Recheck each terminal and wire
harness for open circuit and poor
connection.
[ 2 4 4 2 2 ]
[ 2 5 5 2 2 ]
“C24” or “C25” IGNITION COIL MALFUNCTION
�
Refer to the IGNITION COIL for details. (Refer to page 5-3)