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

Hyundai Ioniq (AE) 2017-2022 Service & Repair 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.

❮Mass Air Flow Sensor (MAFS). Repair procedures

Inspection1.Check the MAFS visually.– Mounting direction correct. – Any contamination, corrosion or damage on connector.

Intake Air Temperature Sensor (IATS). Specifications❯

Specification Temperature Resistance (kΩ) °C °F -40-4040.

Other information:

Hyundai Ioniq (AE) 2017-2022 Service & Repair Manual: Photo Sensor. Repair procedures

Inspection1.Turn the ignition switch ON.2.Connect the GDS.3.Emit intensive light toward the photo sensor using a lamp, and check the output voltage change.4.The voltage will rise with higher intensive light and reduce with lower intensive light.1. Auto light signal2.

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

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Hyundai Ioniq (AE) 2017-2022 Service & Repair Manual: Photo Sensor. Repair procedures

Hyundai Ioniq (AE) 2017-2022 Service & Repair Manual: Intake Actuator. Components and components location

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