Kia Cadenza YG: Heater / Temperature Control Actuator Repair procedures

Kia Cadenza YG 2016-2021 Service Manual / Heating,Ventilation, Air Conditioning / Heater / Temperature Control Actuator Repair procedures

Inspection
1.
Ignition "OFF"
2.
Disconnect the connector of temperature control actuator.
3.
Verify that the temperature control actuator operates to the hot position when connecting 12V to the terminal 3 and grounding terminal 7.
Verify that the temperature control actuator operates to the cool position when connecting in the reverse.
[Drive]

1. -
2. -
3. Cool position
4. 5V (Vcc)
5. Feedback signal
6. Sensor ground
7. Hot position

4.
Check the voltage between terminals 5 and 6(Drive).
Specification
Door position
Voltage(5-6)
Error detecting
Max. cooling
0.3 ± 0.15V
Low voltage :0.1V or less
Max. heating
4.7 ± 0.15V
High voltage :4.9V or more

[Passenger]

1. -
2. -
3. Cool position
4. 5V (Vcc)
5. Feedback signal
6. Sensor ground
7. Hot position

5.
Check the voltage between terminals 5 and 6(Passenger).
Specification
Door position
Voltage(5-6)
Error detecting
Max. cooling
0.3 ± 0.15V
Low voltage :0.1V or less
Max. heating
4.7 ± 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 console side cover [LH].
(Refer to BD group - "Console")
4.
Disconnect the connector(A) and then remove the crash pad lower cover.

5.
Disconnect the diagnosis connectors (A) and then remove the crash pad lower cover.

6.
Remove the shower duct (A).

7.
Remove the BCM (A) by loosening the mounting bolt and nut.

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 side cover(A).

11.
Remove the console side cover [RH] (A).

12.
Remove the crash pad lower cover (A) and then disconnect the connector (B).

13.
Disconnect the damper (B) from the glove box (A) and then remove the glove box lift (C).

14.
Disconnect the pin (A), then remove the glove box (B).

15.
Remove the glove box housing (A) by loosening the mounting screws.

16.
Disconnect the trunk lock switch connector (A) and glove box lamp connector (B).

17.
Disconnect the glove box switch connector (A).

18.
Remove the shower duct (A).

19.
Disconnect the temperature control actuator connector (A)
20.
Loosen the mounting screw and then remove the temperature control actuator (B).
[Passenger]

21.
Installation is the reverse order of removal.

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

    Component Location

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