Hyundai Sonata: Intake Air Temperature Sensor (IATS). Description and Operation
Description
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.

Manifold Absolute Pressure Sensor (MAPS). Repair procedures
Inspection
1.
Connect the GDS on the Data Link Connector (DLC).
2.
Measure the output voltage of the MAPS at idle and IG ON.
...
Intake Air Temperature Sensor (IATS). Specifications
Specification
Temperature
Resistance (kΩ)
°C
°F
-40
-40
40.93 ~ 48.35
-20
...
See also:
Fuel Filler Door Release Actuator. Repair procedures
Inspection
1.
Remove the trunk room left side trim.
(Refer to the BD group - "Interior trim")
2.
Open the fuel filler door an ...
SRS Control Module (SRSCM). Components and Components Location
Components
...
Driving your vehicle
WARNING - ENGINE EXHAUST CAN BE DANGEROUS!
Engine exhaust fumes can be extremely dangerous. If, at any time, you smell
exhaust fumes inside the vehicle, open the windows immediately.
Do not inh ...
