Hyundai Ioniq: Air Conditioning System / Duct Sensor. Repair procedures

Hyundai Ioniq (AE) 2017-2025 Service Manual / Heating, Ventilation and Air Conditioning / Air Conditioning System / Duct Sensor. Repair procedures

Inspection

Check that the voltage values of No. 1, 2 duct sensors change

1. Sensor (+ 5V)

2. Sensor ground

Specification

Ambient temperature [°C (°F)]	Resistance (kΩ)	Voltage (V)
50 (122)	1.08	0.87
30 (86)	2.42	1.61
10 (50)	5.96	2.69
0 (32)	9.73	3.28
-20 (-4)	28.01	4.23
-40 (-40)	87.72	4.73

Replacement

[Duct sensor - Floor]

1.	Disconnect the negative (-) battery terminal.

2.	Remove the crash pad lower panel. (Refer to Body - "Crash Pad Lower Panel")

3.	Remove the driver's side shower duct (A) after loosening the screw.

4.	Disconnect the duct sensor connector (A).

5.	Hold the end of duct sensor (A) and then rotate it 90° clockwise. Remove the duct sensor (B) by pulling it.

6.	To install, reverse the removal procedure.

[Duct sensor - Vent]

7.	Disconnect the negative (-) battery terminal.

8.	Remove the main crash pad assembly. (Refer to Body - "Main Crash Pad Assembly")

9.	Disconnect the duct sensor connector (A).

10.	Hold the end of duct sensor (A) and then rotate it 90° clockwise. Remove the duct sensor (B) by pulling it.

11.	To install, reverse the removal procedure.

Duct Sensor. Components and components location

C..

Heater

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