Heating, Ventilation, and Air Conditioning

Temperature Control Actuator

16steps
~96min
4/5difficulty
Done 0 of 16

Description and Operation

Description

The temperature control actuator is located on the heater unit. It controls the temperature as follows.

The signal from the control unit adjusts the position of the temperature door using the temperature switch. The temperature is then controlled by the ratio of hot and cold air determined by the position of the temperature door.

Specifications

Specifications

Door Position Voltage (V) Fault Detection
Max. Cool 0,3 ± 0,15 Low voltage: 0.1 V or less
High voltage: 4.9 V or more
Max. Heat 4,7 ± 0,15

Repair Procedures

Inspection

  1. Turn the ignition off.

  2. Disconnect the temperature control actuator connector.

  3. Check that the temperature control actuator moves to the cooling position when 12 V is applied to terminal 3 and terminal 7 is grounded.

    Check that the temperature control actuator operates in the warm position when the connections are reversed.

    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 on.

  6. Check the voltage between terminals 5 and 6.

  7. If the measured voltage does not meet the specification, check operation by replacing the existing temperature control actuator with a new genuine part. Then determine whether the temperature control actuator needs to be replaced.

Replacement

[Driver Side]

  1. Disconnect the negative (-) battery terminal.

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

  3. Loosen the mounting screws and remove the temperature control actuator assembly (A).

  4. To install, reverse the removal procedure.

[RHD]

  1. Disconnect the negative (-) battery terminal.

  2. Remove the center lower panel of the airbag.

    (Refer to Body - "Center Lower Panel")

  3. Remove the passenger side air vent duct (A) after loosening the screw.

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

  5. To install, reverse the removal procedure.

Test yourself

A quick Kia Forte BD quiz: every answer comes with an explanation and a link to the manual page.