Hyundai Tucson: Heater / Temperature Control Actuator Repair procedures

Hyundai Tucson (LM) 2010-2015 Service Manual / Heating, Ventilation and Air Conditioning / Heater / Temperature Control Actuator Repair procedures

Inspection

1.	Ignition "OFF"

2.	Disconnect the connector of temperature control actuator.

Verify that the temperature control actuator operates to the hot position when connecting 12V to the terminal 3 and grounding terminal 4.

Verify that the temperature control actuator operates to the cool position when connecting in the reverse.

[Drive]

1. -
2. -
3. Hot position
4. Cool position

5. Sensor ground
6. Feedback signal
7. 5V (Vcc)

Check the voltage between terminals 5 and 6(Drive).

Specification

Door position	Voltage(5-6)	Error detecting
Max. cooling	0.4 ± 0.15V	Low voltage :0.1V or less
Max. heating	4.6 ± 0.15V	High voltage :4.9V or more

[Passenger]

1. -
2. -
3. Cool position
4. Hot position

5. 5V (Vcc)
6. Feedback signal
7. Sensor ground

Check the voltage between terminals 6 and 7(Passenger).

Specification

Door position	Voltage(5-6)	Error detecting
Max. cooling	0.4 ± 0.15V	Low voltage :0.1V or less
Max. heating	4.6 ± 0.15V	High voltage :4.9V or more

It will feedback current position of actuator to controls.

6.	If the measured voltage is not specification, substitute with a known-good temperature control actuator and check for proper operation.

7.	If the problem is corrected, replace the temperature control actuator.

Replacement

1.	Disconnect the negative (-) battery terminal.

2.	Remove the crash pad left side cover (A).

3.	Remove the extension cover(A).

4.	Remove the crash pad lower cover (A).

5.	Disconnect the diagnosis connector (A).

6.	Remove the reinforcing panel (A).

7.	Remove the shower duct (A).

8.	Disconnect the temperature control actuator connector (A).

9.	Loosen the mounting screw and then remove the temperature control actuator (B). [Drive]

10.	Remove the right extension cover (A).

11.	Disconnect the damper (A) from the glove box (B).

12.	Remove the glove box lift (A).

13.	Disconnect the pine (A), then remove the glove box (B).

14.	Remove the crash pad passenger panel(A).

15.	Remove the glove box housing (A).

16.	Remove the shower duct (A).

17.	Disconnect the temperature control actuator connector (A)

18.	Loosen the mounting screw and then remove the temperature control actuator (B). [Passenger]

19.	Install in the reverse order of removal.

Temperature Control Actuator Description and Operation

Description 1. Heater unit includes mode control actuator and temperature control actuator. 2. Temperature control actuator is located at the heater unit. It regulates the temperature by the ...

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