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:
Special Service Tools
Special Service Tools
Item
Illustration
Application
Fuel Pressure Gauge
(09353-24100)
Measuring the fuel line press ...
Water pump. Repair procedures
Removal and Installation
1.
Loosen the drain plug, and then drain the engine
coolant. Remove the radiator cap to drain with speed.
2.
Remo ...
Summer tires
HYUNDAI specifies summer tires on some models to provide superior performance
on dry roads. Summer tire performance is substantially reduced in snow and ice.
Summer tires do not have the tire trac ...
