Hyundai Palisade (LX2): Engine Control System / Intake Air Temperature Sensor (IATS)
Description and operation
Mounted inside the Manifold Absolute Pressure Sensor, Intake Air Temperature
Sensor (IATS) detects the intake air temperature.
To precisely calculate the amount of air, correction of the air temperature
is required as the air density varies with the temperature. So the ECM uses
not only MAPS signal but also IATS signal. This sensor has a Negative Temperature
Coefficient (NTC) thermistor with resistance in reverse proportion to the temperature.
Specifications
Temperature
|
Resistance (kΩ)
|
°C
|
°F
|
-40
|
-40
|
40.93 - 48.35
|
-20
|
-4
|
13.89 - 16.03
|
0
|
32
|
5.38 - 6.09
|
10
|
50
|
3.48 - 3.90
|
20
|
68
|
2.31 - 2.57
|
40
|
104
|
1.08 - 1.21
|
60
|
140
|
0.54 - 0.66
|
80
|
176
|
0.29 - 0.34
|
Schematic diagrams
Harness Connector
Repair procedures
| 1. |
Switch "OFF" the ignition.
|
| 2. |
Disconnect the IATS connector.
|
| 3. |
Measure resistance between the IATS terminals 3 and 4.
|
| 4. |
Check that the resistance is within the specification.
Temperature
|
Resistance (kΩ)
|
°C
|
°F
|
-40
|
-40
|
40.93 - 48.35
|
-20
|
-4
|
13.89 - 16.03
|
0
|
32
|
5.38 - 6.09
|
10
|
50
|
3.48 - 3.90
|
20
|
68
|
2.31 - 2.57
|
40
|
104
|
1.08 - 1.21
|
60
|
140
|
0.54 - 0.66
|
80
|
176
|
0.29 - 0.34
|
|
| 1. |
Switch "OFF" the ignition and disconnect the negative (-) battery terminal.
|
| 2. |
Disconnect the vacumm hose (A).
|
| 3. |
Disconnect the intake temperature sensor connector (B).
|
| 4. |
Remove the sensor after loosening the mounting bolt.
|
Intake Air Temperature Sensor (IATS) mounting bolt :
9.8 - 11.8 N.m (1.0 - 1.2 kgf.m, 7.2 - 8.7 lb-ft)
|
|
| • |
Install the component to the specified torque.
|
| • |
Note that internal damage may occur if the component is dropped.
In this case, inspect the component before installation.
|
| • |
Insert the sensor in the installation hole and be careful not
to damage it during installation.
|
|
| 1. |
Install in the reverse order of removal.
|
Description and operation
Description
The Electronic Throttle Control (ETC) System consists of a throttle body with
an integrated control motor and throttle position sensor (TPS).
Description and operation
Description
Manifold Absolute Pressure Sensor (MAPS) is a speed-density type sensor installed
on the surge tank.
Other information:
Description and operation
Description
The mode control actuator is located at the heater unit.
It adjusts the position of the mode door by operating the mode control actuator
based on the signal of the A/C control unit. Pressing the mode select switch
makes the mode control actuator shift in order of Vent → Bi-Level →
Inspection
Tolerance Compensation
Tolerance compensation compensates for the error margins of around view video
that occur due to the installation tolerance when the four cameras that comprise
the SVM system are installed.
You must carry out tolerance compensation if you do any of the following.
