HYOSUNG AQUILA 250 FI, Service Manual, Page: 40 / 90

39
FI SYSTEM DIAGNOSIS 4-1-30
SAV solenoid voltage
Battery voltage
(
�
GL -
�
Ground )
Is the voltage OK?
NO
YES
Replace the SAV solenoid with a new
one.
“C37” SAV SOLENOID MALFUNCTION
DETECTED CONDITION POSSIBLE CAUSE
SAV solenoid voltage is not input in ECU.
● SAV solenoid circuit open or short.
●
SAV solenoid malfunction.
● ECU malfunction.
Tester knob indication : Voltage ( )
ECU Coupler
�
C37
CODE
CODE
[ 3 3 7 ]
▣ ▣
INSPECTION
1) Remove the front seat.
2) Turn the ignition switch “OFF” position.
3) Check the SAV solenoid coupler for loose or poor
contacts.
4) Connect the SAV solenoid coupler.
5) Turn the ignition switch “ON” position.
6) Measure the voltage at the wire side coupler
between GL wire and ground.
● GL wire open or shorted to ground, or �
connection.
●
If wire and connection are OK,
intermittent trouble or faulty ECU.
●
Recheck each terminal and wire harness
for open circuit and poor connection.