Kia Picanto JA Quiz
Engine Control System/Fuel System

Intake Air Temperature Sensor (IATS)

In this manual: Engine Control System/Fuel System
General Information — 8Maintenance — 30Engine Mechanical System — 46Engine Electrical System — 14Emission Control System — 11Engine Control System/Fuel System — 46Clutch System — 12Manual Transmission — 10Drive Shaft and Axle — 8Suspension System — 15Steering — 9Restraints — 17Brake System — 22Body (Interior and Exterior) — 104Body Electrical System — 80Heating, Ventilation, and Air Conditioning — 17
7steps
~42min
2/5difficulty
010203040508.36N·mlb·ft
Tightening torque found on this page
Done 0 of 7

Specifications

Specification

▷ Type: Thermistor Type
Temperature Resistance (kOhm)
°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

Description

The Intake Air Temperature Sensor (IATS), integrated into the manifold absolute pressure sensor, detects the temperature of the intake air. To accurately calculate the air volume, air temperature correction is required because air density depends on temperature. Therefore, the ECM uses the IATS signal together with the MAPS signal. It is a Negative Temperature Coefficient (NTC) thermistor whose resistance changes inversely proportional to temperature.

Circuit Diagrams

Wiring Diagram

[A/T]

[M/T]

Repair Procedures

Inspection

  1. Turn the ignition off.
  2. Disconnect the IAT sensor connector.
  3. Measure the resistance between terminals 3 and 4 of the IAT sensor.
  4. Make sure the resistance is within specification.
    Temperature Resistance (kOhm)
    °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

Removal

  1. Turn the ignition switch OFF and disconnect the negative (-) battery terminal.
  2. Disconnect the MAP 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

Installation

  1. Install in the reverse order of removal.

Test yourself

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