C27" Isc Solenoid Range Abnormal - HYOSUNG COMET 250/R FI Service Manual

4-1-27 FI SYSTEM DIAGNOSIS

"C27" ISC SOLENOID RANGE ABNORMAL

C27
DETECTED CONDITION
ISC solenoid's step is out of the specified range.
O step � Solenoid step �
▣ ▣ INSPECTION
1) Remove the front seat.
2) Turn the ignition switch "OFF" position.
3) Check the ISC solenoid coupler for loose or poor
contacts.
4) Turn the ignition switch "ON" position to check the
ISC solenoid operation.
[ When Ignition switch "OFF" ]
[ When Ignition switch "ON" ]
Is OK?
● Gr, GR, Y or W wire loose or poor
contacts on the ISC solenoid
coupler, or poor
connection.
YES
● 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 ISC solenoid with a
NO
new one.
CODE
100 step
, , or
34 32 33 25
[ 2 7
POSSIBLE CAUSE
● ISC solenoid malfunction.
● ISC solenoid's step is out of the specifie range.
● ECU malfunction.
�
34
33
36
CODE
2 7
32
ECU Coupler
]