Kia Carens: Engine Control System / Intake Air Temperature Sensor (IATS) Description and operation
Intake Air Temperature Sensor (IATS) is included inside Manifold Absolute Pressure
Sensor and detects the intake air temperature.
To calculate precise air quantity, correction of the air temperature is needed
because air density varies according to the temperature. So the ECM uses not
only MAPS signal but also IATS signal. This sensor has a Negative Temperature
Coefficient (NTC) Thermister and it's resistance changes in reverse proportion
to the temperature.

Inspection
1.
Connect the GDS on the Data Link Connector (DLC).
2.
Measure the output voltage of the MAPS at idle and IG ON.
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Specification
Temperature
Resistance (kΩ)
°C
°F
-40
-40
40.93 ~ 48.35
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Other information:
WARNING
ABS (or ESC) will not prevent accidents due to improper or dangerous driving
maneuvers. Even though vehicle control is improved during emergency braking, always
maintain a safe distance between you and objects ahead. Vehicle speeds should always
be reduced during extreme road conditions.
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Removal
1.
Turn ignition OFF and disconnect the negative (-) battery cable.
2.
Remove the floor console assembly.
(Refer to Body - “Floor console assembly")
3.
Remove the EPB switch (A) ...