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

Hyundai Sonata LF 2014-2019 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 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 (k?)°C°F-40-4040.93 ~ 48.35-20-413.89 ~ 16.030325.38 ~ 6.0910503.48 ~ 3.9020682.31 ~ 2.57401041.08 ~ 1.21501221.56 ~ 1.74601400.54 ~ 0.62801760.29 ~ 0.34 ...

Other information:

Hyundai Sonata LF 2014-2019 Service Manual: Steering Angle Sensor Description and Operation
Description Steering Wheel Angle Sensor detects rotating direction of the vehicle. Rotating direction detected by the sensor is communicated with HECU as CAN signal involving information about the angle through CAN communication line. HECU detects speed of the steering wheel handling and ...

Hyundai Sonata LF 2014-2019 Service Manual: Electric Parking Brake (EPB) Repair procedures
EPB Release 1. Turn ignition switch OFF and disconnect the negative (-) battery cable. 2. Connect the GDS to the data link connector located underneath the dash panel. 3. Select and operate according to the instructions on the GDS screen. (1) Select vehicle name. (2) Select EPB. ...