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Hyundai Equus: Intake Air Temperature Sensor (IATS) Description and Operation - Engine Control System - Engine Control/Fuel System - Hyundai Equus VI 2009-2026 Service ManualHyundai Equus: 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. Specification: Refer to "Specification" Removal 1. Tur ...

    Intake Air Temperature Sensor (IATS) Specifications
    Specification TemperatureResistance (kx)°C°F-40-4040.93 ~ 48.35-20-413.89 ~ 16.030325.38 ~ 6.0910503.48 ~ 3.9020682.31 ~ 2.57401041.08 ~ 1.21601400.54 ~ 0.66801760.29 ~ 0.34 ...

    See also:

    ETC (Electronic Throttle Control) System Repair procedures
    Inspection Throttle Position Sensor (TPS) 1. Connect the GDS on the Data Link Connector (DLC). 2. Start the engine and measure the output voltage of TPS 1 and 2 at C.T. and W.O.T. Throttle ...

    Damper Clutch Control Solenoid Valve Description and Operation
    Description Damper Clutch control solenoid valve is attached to the valve body. This variable force solenoid valve directly controls the hydraulic pressure inside the Damper Clutch. ...

    Rear cross traffic alert
    When your vehicle moves backwards from a parking position, the sensor detects approaching vehicles to the left or right side direction and gives information to the driver. Operating condition ...

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