Kia Picanto: Engine Control System / Intake Air Temperature Sensor (IATS)
Specifications
▷ Type: Thermistor type
Temperature
|
Resistance (kΩ)
|
°C
|
°F
|
-40
| -40
| 40.93 - 48.35
|
-30
| -22
| 23.43 - 27.34
|
-20
| -4
| 13.89 - 16.03
|
-10
| 14
| 8.5 - 9.7
|
0
| 32
| 5.38 - 6.09
|
10
| 50
| 3.48 - 3.90
|
20
| 68
| 2.31 - 2.57
|
30
| 86
| 1.9 - 2.1
|
40
| 104
| 1.08 - 1.21
|
50
| 122
| 0.76 - 0.85
|
60
| 140
| 0.54 - 0.62
|
70
| 158
| 0.40 - 0.45
|
80
| 176
| 0.29 - 0.34
|
90
| 194
| 0.22 - 0.26
|
100
| 212
| 0.17 - 0.20
|
110
| 230
| 0.13 - 0.15
|
120
| 248
| 0.10 - 0.12
|
130
| 266
| 0.08 - 0.09
|
Description and operation
Integrated
in the Manifold Absolute Pressure Sensor, the Intake Air Temperature
Sensor (IATS) detects the intake air temperature.
To
precisely calculate the amount of air, air temperature correction is
needed as air density varies with temperature. So, the ECM uses IATS
signal as well as MAPS signal. It has a Negative Temperature Coefficient
(NTC) Thermistor whose resistance changes in reverse proportion to
temperature.
Schematic diagrams
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.
Temperature
|
Resistance (kΩ)
|
°C
|
°F
| -40
| -40
| 40.93 - 48.35
| -30
| -22
| 23.43 - 27.34
| -20
| -4
| 13.89 - 16.03
| -10
| 14
| 8.5 - 9.7
| 0
| 32
| 5.38 - 6.09
| 10
| 50
| 3.48 - 3.90
| 20
| 68
| 2.31 - 2.57
| 30
| 86
| 1.9 - 2.1
| 40
| 104
| 1.08 - 1.21
| 50
| 122
| 0.76 - 0.85
| 60
| 140
| 0.54 - 0.62
| 70
| 158
| 0.40 - 0.45
| 80
| 176
| 0.29 - 0.34
| 90
| 194
| 0.22 - 0.26
| 100
| 212
| 0.17 - 0.20
| 110
| 230
| 0.13 - 0.15
| 120
| 248
| 0.10 - 0.12
| 130
| 266
| 0.08 - 0.09
|
|
| 1. | Turn the ignition switch OFF and disconnect the battery negative (-) terminal. |
| 2. | Disconnect the manifold absolute pressure sensor connector (A). |
| 3. | Remove the sensor (B) from the Intake manifold by loosening the mounting screws.
Manifold absolute pressure sensor mounting screw :
6.4 - 8.3 N·m (0.65 - 0.85 kgf·m, 4.7 - 6.1 lb·ft) |
 |
| •
| Tighten the component to the specified torques. |
| •
| Note
that internal damage may occur when the component is dropped. If the
component has been dropped, inspect if it is damaged before installing. |
| •
| Carefully insert the sensor into the installation hole without damaging it. |
|
| 1. | Install in the reverse order of removal. |
Specifications
Specification
Pressure
[kPa (kgf/cm², psi)]
Output Voltage (V) [Vref=5V]
32.5 ( ...
Specifications
Specification
Temperature[⁰C(⁰F)]
Resistance(kΩ)
-40(-40) 811.1 - 956.8 -20(-4) 255.6 - 287.7 0(32) 91.5 - ...
Other information:
The driver can set the TPMS by following
procedures below:
1. Inflate all tires to the recommended
pressure.
2. Start the engine, make sure the vehicle
is not moving, and press the
TPMS switch (2) left side on the
driver’s seat for over 3 seconds.
3. Check if the () warning
indicato ...
Repair procedures
Refrigerant System Service Basics (R-134a)
Refrigerant Recovery
Use
only U.L.-listed service equipment that is certified to meet the
requirements of SAE J2210 when removing HFC-134a (R-134a) from the air
conditioning system.
•
...
Manifold Absolute Pressure Sensor (MAPS)
Ambient Temperature Sensor (ATS)