Hyundai i-30: Air Conditioning System / Ambient Temperature Sensor

Hyundai i30 (PD) 2018-2024 Service Manual / Heating, Ventilation and Air Conditioning / Air Conditioning System / Ambient Temperature Sensor

Description and operation

Description

The ambient temperature sensor is located at the front of the condenser and detects ambient air temperature. It is a negative type thermistor; resistance will increase with lower temperature, and decrease with higher temperature.

The sensor output will be used for discharge temperature control, temperature regulation door control, blower motor level control, mix mode control and in-car humidity control.

If the ambient temperature is below 2.0°C (35.6°F), the A/C compressor will stop.

The compressor will operate manually.

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 terminal 1 and 2 (kΩ)
-10 (14)	164.2
0 (32)	97.5
10 (50)	59.6
20 (68)	37.46

Diagnosis With GDS

The heating, ventilation and air conditioning can be quickly diagnosed failed parts with vehicle diagnostic system (GDS).

※ The diagnostic system (GDS) provides the following information.

(1) Self diagnosis : Checking the failure code (DTC) and display.

(2) Current data : Checking the system input/output data state.

(3) Actuation test : Checking the system operation condition.

(4) Additional function : Other controlling such as he system option and zero point adjustment.

2.	Select the 'Car model' and the system to be checked in order to check the vehicle with the tester.

3.	Select the 'Current data' menu to search the current state of the input / output data. The input / output data for the sensors corresponding to the Ambient Temperature Sensor can be checked.

Replacement

1.	Disconnect the negative (-) battery terminal.

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

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

4.	To install, reverse the removal procedure.

Photo Sensor

Description and operation Description The photo sensor is located at the center of the defrost nozzles. The photo sensor contains a photovoltaic (sensitive to sunlight) diode...

Auto Defogging Sensor

Description and operation Description The auto defogging sensor is installed on the front window glass. The sensor judges and sends signal if moisture occurs to blow out wind for defogging...

Other information:

Hyundai i30 (PD) 2018-2024 Owner's Manual: Reverse parking aid function

When you move the shift lever to the R (Reverse) position, the outside rearview mirror(s) will rotate downwards to aid with driving in reverse. The position of the outside rearview mirror switch (1) determines whether or not the mirrors will move: Left/Right : When either the L (Left) or R (Right) switch is selected, both outside rearview mirrors will move...

Hyundai i30 (PD) 2018-2024 Owner's Manual: Storage compartment

WARNING Never store cigarette lighters, propane cylinders, or other flammable/explosive materials in the vehicle. These items may catch fire and/or explode if the vehicle is exposed to hot temperatures for extended periods. WARNING ALWAYS keep the storage compartment covers closed securely whilst driving...