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
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See also:
Troubleshooting
Troubleshooting
Symptom
Suspected area
Repairment
Pressing power switch does not turn on system
Radio receiver power source circuit
...
Driving off-road
Drive carefully off-road because your vehicle may be damaged by rocks or roots
of trees. Become familiar with the off-road conditions where you are going to drive
before you begin driving. ...
Glove box lamp
The glove box lamp comes on when the glove box is opened.
CAUTION
To prevent unnecessary charging system drain, close the glove box securely
after using the glove box. ...