Hyundai Elantra Owners and Service Manuals

Hyundai Elantra: Heater / Temperature Control Actuator

Hyundai Elantra (CN7) 2021-2024 Service Manual / Heating, Ventilation and Air Conditioning / Heater / Temperature Control Actuator

Description and operation
Description
The temperature control actuator is located at the heater unit. It regulates the temperature by the procedure as follows.
The signal from the control unit adjusts the position of the temperature door by operating the temperature switch. Then the temperature will be regulated by the hot/cold air ratio decided by the position of the temperature door.
Components and components location
Components Location

1. Temperature control actuator [LH]
2.Temperature control actuator [RH]

Specifications
Specifications
Door Position
Voltage (V)
Error Detecting
Max. cooling
0.3 ± 0.15
 Low voltage : 0.1V or less
High voltage : 4.9V or more
Max. heating
4.7 ± 0.15

Repair procedures
Inspection
1.
Turn the ignition switch OFF.
2.
Disconnect the temperature control actuator connector.
3.
Verify that the temperature control actuator operates to the cool position when connecting 12V to terminal 3 and grounding terminal 7.
Verify that the temperature control actuator operates to the warm position when connected in reverse.

Pin NO
Function
1
-
2
-
3
Cool position
4
Sensor (+5V)
5
Feedback signal
6
Sensor ground
7
Warm position

4.
Connect the temperature control actuator connector.
5.
Turn the ignition switch ON.
6.
Check the voltage between terminal 5 and 6.
7.
If the measured voltage is not within specification, check the operation by replacing the existing temperature control actuator with a new genuine part. After that, determine whether replacement of the temperature control actuator is required or not.
Replacement
[Driver's side]
1.
Disconnect the negative (-) battery terminal.
2.
Remove the crash pad lower panel.
(Refer to Body (Interior and Exterior) - "Crash Pad Lower Panel")
3.
Loosen the mounting screw, remove the shower duct (A).

4.
Disconnect the connector (A) and then remove the driver's side temperature control actuator (B) after loosening the mounting screws.

5.
To install, reverse the removal procedure.
[Passenger's side]
1.
Disconnect the negative (-) battery terminal.
2.
Remove the glove box housing cover.
(Refer to Body (Interior and Exterior) - "Glove Box Housing Cover")
3.
Loosen the mounting screw, remove the shower duct (A).

4.
Disconnect the connector (A) and then remove the passenger's side temperature control actuator (B) after loosening the mounting screws.

5.
To install, reverse the removal procedure.

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