Kia Rio YB Quiz
Heating, Ventilation, and Air Conditioning

Temperature Control Actuator

In this manual: Heating, Ventilation, and Air Conditioning
General Information — 8Maintenance — 31Engine Mechanical System — 44Engine Electrical System — 14Emission Control System — 9Engine Control System/Fuel System — 30Clutch System — 10Manual Transmission — 10Automatic Transmission — 23Drive Shaft and Axle — 8Suspension System — 15Steering — 9Restraints — 14Brake System — 22Body (Interior and Exterior) — 115Body Electrical System — 84Heating, Ventilation, and Air Conditioning — 28
12steps
~72min
3/5difficulty
Done 0 of 12

Description and Operation

Description

The heater unit includes the mode control actuator and the temperature control actuator.

The temperature control actuator is located on the heater unit. It adjusts the temperature as follows. A signal from the control unit adjusts the position of the temperature door using the operating temperature switch, and the temperature is then regulated by the ratio of hot and cold air determined by the position of the temperature door.

Repair Procedures

Inspection

  1. Turn the ignition off.

  2. Disconnect the temperature control actuator connector.

  3. Make sure the temperature control actuator operates to the heat (LHD) or cold (RHD) position when 12 V is applied to terminal 3 and ground is connected to terminal 4.

    Make sure the temperature control actuator operates in the cooling (LHD) or warm (RHD) position when connected in reverse.

    1. -
    2. -
    3. Cool Position
    4. Warm Position    		 5. Sensor (+5V)
    6. Feedback Signal
    7. Sensor Ground

  4. Connect the temperature control actuator connector.

  5. Turn the ignition on.

  6. Check the voltage between terminals 6 and 5 (LHD) or 7 (RHD).

    Specification

    Door Position Voltage (V) Fault Detection
    Max. Cool 0,4 Low voltage: 0.1 V or less
    Max. Heat 4.6 High voltage: 4.9 V or more

    It will transmit the current actuator position to the controllers.

  7. If the measured voltage does not meet the specification, replace the temperature control actuator with a known good one and check operation.

  8. If the problem is resolved, replace the temperature control actuator.

Replacement

  1. Disconnect the negative (-) battery terminal.

  2. Remove the driver side air vent duct (A) after loosening the screw.

  3. Disconnect the connector (A), then remove the temperature control actuator (B) after loosening the mounting screws.

  4. Installation is the reverse of removal.

Test yourself

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