Hyundai Ioniq: 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.

Inspection1.Check the MAFS visually.–
Mounting direction correct. –
Any contamination, corrosion or damage on connector...
Specification
Temperature
Resistance (kΩ)
°C
°F
-40-4040...
Other information:
With the door lock button
To unlock a door, pull the door lock button (1) to the "Unlock" position.
The red mark (2) on the door lock button will be visible.
To lock a door, push the door lock button (1) to the "Lock" position. If
the door is locked properly, the red mark (2) on the door lock button will not
be visible...
ALWAYS use the Floor Mat Anchors to attach the front floor mats to the vehicle.
The anchors on the front floor carpet keep the floor mats from sliding forward.
WARNING
Do not overlay additional mats or liners over the floor mats. If using All
Weather mats, remove the carpeted floor mats before installing them...
Categories
Adjust the steering wheel so it points toward your chest, not toward your face.
Make sure you can see the instrument cluster warning lights and gauges. After adjusting,
push the steering wheel both up and down to be certain it is locked in position.
Always adjust the position of the steering wheel before driving.
WARNING
NEVER adjust the steering wheel while driving. This may cause loss of vehicle
control resulting in an accident.

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