C21" Iat Sensor Circuit Malfunction - HYOSUNG GV250 EI Service Manual

"C21" IAT SENSOR CIRCUIT MALFUNCTION

C21
DETECTED CONDITION
Output voltage is out of the specified range for 6 sec.
and more.
0.08 V Sensor voltage
▣ ▣ INSPECTION
1) Remove the fuel tank.
2) Turn the ignition switch "OFF" position.
3) Check the IAT sensor coupler for loose or poor
contacts.
If OK, then measure the IAT sensor resistance.
4) Disconnect the IAT sensor coupler.
5) Measure the resistance between the terminals ①
and ②.
IAT sensor resistance
Tester knob indication : Resistance (
CODE
[ 2
4.75 V
㏀
0.081 ~ 48.352
~When Intake air
temperature is
-40℃ ~ 130℃
(-40℉ ~ 266℉) ₩
㏀ ㏀
)
1 2 1
POSSIBLE CAUSE
● IAT sensor circuit open or short.
● IAT sensor malfunction.
● ECU malfunction.
①
47
EI SYSTEM DIAGNOSIS 4-1-32
CODE
CODE
2 1 2 1 ]
②