Hyundai Palisade: 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:
Repair procedures
Inspection
Check if the auto light control operates like a timing chart shown below. Tail
lamp output and head lamp (Low) output is controlled based on the auto light
sensor's input (illumination intensity) when the Auto Light Switch in Multi-Function
Switch is turned ON, and the vehicle is in IGN1 or IGN2 ON Mode...
Removal
1.
Disconnect the negative (-) battery terminal.
2.
Remove the steering wheel.
(Refer to Steering System - "Steering Wheel")
3.
Remove the steering column upper and lower shrouds...
Categories
Even though your vehicle is equipped
with the OCS, never install a child
restraint in the front passenger's seat.
An inflating air bag can forcefully
strike a child or child restraint resulting
in serious or fatal injury.
read more
ETC (Electronic Throttle Control) System
Manifold Absolute Pressure Sensor (MAPS)