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

    1. Crankcase emission control system
    The positive crankcase ventilation system is employed to prevent air pollution caused by blow-by gases being emitted from the crankcase. This system supplies fresh filtered air to the crankcase th ...

    Specifications
    Specifications Items Specifications Rated voltage DC 12V Operating voltage DC 9 ~ 16V Operating temp ...

    Warning lights
    ✽ NOTICE - Warning lights Make sure that all warning lights are OFF after starting the engine. If any light is still ON, this indicates a situation that needs attention. ...