Hyundai Santa Fe: Engine Control System / Intake Air Temperature Sensor (IATS). Description and operation

Hyundai Santa Fe (TM) 2019-2024 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 changes in reverse proportion to the temperature.

    Manifold Absolute Pressure Sensor (MAPS). Repair procedures

    Inspection 1. Connect the diagnostic tool 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 [°C (°F)] Resistance (kΩ) -40 (-40) 40.93 - 48.35 -20 (-4) 13...

    Other information:

    Hyundai Santa Fe (TM) 2019-2024 Service Manual: Schematic diagrams


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    Categories

    Electric Power Steering (EPS) warning light. Charging system warning light

    Electric Power Steering (EPS) warning light

    This warning light illuminates:

    When you set the ignition switch or the Engine Start/Stop button to the ON position.
    - The electric power steering warning light illuminates for about 3 seconds and then goes off. Whenever there is a malfunction with the electric power steering.
    If this occurs, have the vehicle inspected by an authorized HYUNDAI dealer.

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