Kia Soul: Intake Air Temperature Sensor (IATS). Description and Operation - Engine Control System - Engine Control / Fuel SystemKia Soul: Intake Air Temperature Sensor (IATS). Description and Operation

Kia Soul 2014-2019 PS Service Manual / Engine Control / Fuel System / Engine Control System / Intake Air Temperature Sensor (IATS). Description and Operation

Description

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 value changes in reverse proportion to the temperature.

    Manifold Absolute Pressure Sensor (MAPS). Repair procedures
    Inspection 1. Connect the GDS on the Data Link Connector (DLC). 2. Measure the output voltage of the MAPS at idle and IG ON. ...

    Intake Air Temperature Sensor (IATS). Specifications
    Specification Temperature Resistance (kΩ) °C °F -40 -40 40.93 ~ 48.35 -20 -4 13.89 ~ 16.03 ...

    See also:

    Necessary inspections
    Fluid levels, such as engine oil, engine coolant, brake fluid, and washer fluid should be checked on a regular basis, with the exact interval depending on the fluid. Further details are provided i ...

    Troubleshooting
       • The battery must be in good condition and fully charged for this troubleshooting. ...

    Transaxle Oil Temperature Sensor. Inspection
    1. Turn ignition switch OFF. 2. Disconnect the solenoid valve connector (A). 3. Measure resistance bet ...