Hyundai Sonata: Intake Air Temperature Sensor (IATS). Description and Operation - Engine Control System - Engine Control/Fuel SystemHyundai Sonata: 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 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 ...

    See also:

    Troubleshooting
    Troubleshooting Symptom Suspected area Repairment Pressing power switch does not turn on system Radio receiver power source circuit ...

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    Drive carefully off-road because your vehicle may be damaged by rocks or roots of trees. Become familiar with the off-road conditions where you are going to drive before you begin driving. ...

    Glove box lamp
    The glove box lamp comes on when the glove box is opened. CAUTION To prevent unnecessary charging system drain, close the glove box securely after using the glove box. ...