Hyundai Santa Fe: Air conditioning System / Ambient Temperature Sensor. Repair procedures

Hyundai Santa Fe (TM) 2019-2024 Service Manual / Heating,Ventilation And Air Conditioning / Air conditioning System / Ambient Temperature Sensor. Repair procedures

Inspection

Check the resistance of the ambient temperature sensor between terminals 1 and 2 whether it changes by changing the ambient temperature.

1. Ambient Sensor (+)

2. Sensor ground

Specification

Ambient temperature [°C (°F)]	Resistance between terminals 1 and 2 (kΩ ± 3%)
-30 (-22)	480.41
-20 (-4)	271.21
-10 (14)	158.18
0 (32)	95.1
10 (50)	58.8
20 (68)	37.32
30 (86)	24.26
40 (104)	16.13
50 (122)	10.95

2.	If the measured resistance is not within specification, substitute with a known-good ambient temperature sensor and check for proper operation.

3.	Replace the ambient temperature sensor if it is proved that there is a problem with the sensor.

Replacement

1.	Disconnect the negative (-) battery terminal.

2.	Remove the front bumper. (Refer to Body - "Front Bumper Assembly")

3.	Disconnect the connector (A) and then remove the ambient temperature sensor (B).

4.	Install in the reverse order of removal.

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Categories

Air bag collision sensors

WARNING

To reduce the risk of an air bag deploying unexpectedly and causing serious injury or death:

Do not hit or allow any objects to impact the locations where air bags or sensors are installed. Do not perform maintenance on or around the air bag sensors. If the location or angle of the sensors is altered, the air bags may deploy when they should not or may not deploy when they should. Installing bumper guards with nongenuine Hyundai or non-equivalent parts may adversely affect the collision and airbag deployment performance. Press the Engine Start/Stop button to the OFF or ACC position and wait for 3 minutes when the vehicle is being towed to prevent inadvertent air bag deployment. Have all air bag repairs performed by an authorized HYUNDAI dealer.