Hyundai i-30: 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.
![](images/intake_air_temperature_sensor_iats_-503/380/spdfl11368e.gif)
Specifications
Temperature
|
Resistance (kΩ)
|
°C
|
°F
|
-40 ± 1
|
-40 ± 1
|
38.88 - 50.77
|
-20 ± 1
|
-4 ± 1
|
13.20 - 16.83
|
0 ± 1
|
32 ± 1
|
5.12 - 6.12
|
20 ± 1
|
68 ± 1
|
2.20 - 2.69
|
25 ± 1
|
77 ± 1
|
1.81 - 2.21
|
40 ± 1
|
104 ± 1
|
1.02 - 1.27
|
60 ± 1
|
140 ± 1
|
0.52 - 0.65
|
80 ± 1
|
176 ± 1
|
0.28 - 0.35
|
100 ± 1
|
212 ± 1
|
0.16 - 0.21
|
120 ± 1
|
248 ± 1
|
0.10 - 0.13
|
130 ± 1
|
266 ± 1
|
0.08 - 0.10
|
150 ± 1
|
302 ± 1
|
0.05 - 0.07
|
Schematic diagrams
![](images/intake_air_temperature_sensor_iats_-503/380/sdnfl00016n.gif)
Harness Connector
![](images/intake_air_temperature_sensor_iats_-503/380/sdnfl00039d.gif)
Repair procedures
1. |
Turn the ignition switch OFF.
|
2. |
Disconnect the IATS connector.
|
3. |
Measure resistance between the IATS terminals 3 and 4.
|
4. |
Check that the resistance is within the specification.
Specification : Refer to "Specification"
|
|
1. |
Turn the ignition switch OFF and disconnect the battery negative (-)
cable.
|
2. |
Disconnect the manifold absolute pressure sensor connector (A).
|
3. |
Remove the installation bolt (B), and then remove the sensor from the
surge tank.
Tightening Torque :
9.8 - 11.8 N.m (1.0 - 1.2 kgf.m, 7.2 - 8.7 lb-ft)
|
![](images/intake_air_temperature_sensor_iats_-503/380/spdfl15306e.gif)
|
•
|
Install the component with the specified torques.
|
•
|
Note that internal damage may occur when the component is dropped.
If the component has been dropped, inspect before installing.
|
|
•
|
Insert the sensor in the installation hole and be careful not
to damage.
|
|
1. |
Install in the reverse order of removal.
|
Description and operation
Description
Manifold Absolute Pressure Sensor (MAPS) is a speed-density type sensor and
is installed on the surge tank...
Description and operation
Description
Ambient Temperature Sensor (ATS) is installed on the front-end module and senses
the ambient temperature...
Other information:
1. Turn the vehicle off.
2. Turn all other switches OFF.
3. Open the fuse panel cover.
4. Refer to the label on the inside of
the fuse panel cover to locate the
suspected fuse location.
5. Pull the suspected fuse straight
out. Use the removal tool provided
in the engine compartment fuses
panel...
Towbars
Information
The mounting hole for towbars are
located on both sides of the underbody
behind the rear tyres.
It's important to have the correct towbar
equipment. Crosswinds, large
trucks going by, and rough roads are
a few reasons why you’ll need the
right towbar...
Categories
Operating door locks from
outside the vehicle
Mechanical key
![Hyundai i30. Door locks](images/books/1/hyundai_i30_door_locks_116.png)
Turn the key toward the rear of the
vehicle to unlock and toward the front
of the vehicle to lock.
If you lock/unlock the driver's door
with a key, a driver’s door will
lock/unlock automatically.
read more