Heating, Ventilation, and Air Conditioning

Temperature Control Actuator

19steps
~114min
4/5difficulty
Done 0 of 19

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 controls the temperature as follows. A signal from the control unit adjusts the position of the temperature door by controlling the temperature actuator. The temperature is then regulated by the hot/cold air ratio determined by the position of the temperature door.

Components and Component Location

Component Location

Hyundai Palisade. Components and components location
1. Temperature Control Actuator [Driver Side] 2. Temperature Control Actuator [RH]

Repair Procedures

Inspection

  1. Turn the ignition off.
  2. Disconnect the temperature control actuator connector.
  3. Make sure the temperature control actuator moves to the cool position when 12 V is applied to terminal 3 and terminal 4 is grounded. Make sure the temperature control actuator operates to the warm position when connected in reverse. [Driver]
    Hyundai Palisade. Repair procedures
    1. -
    2. -
    3. Cool position
    4. Warm position
    5. Sensor ground
    6. Feedback signal
    7. Sensor power (+5V)

    [Passenger]
    1. -
    2. -
    3. Cool position
    4. Warm position
    5. Sensor power (+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 5 and 6. Specification
    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 less
    Max. Heat 4,5 ± 0,15

    It will report the current actuator position to the controls.
  7. If the measured voltage does not meet the specification, replace the temperature control actuator with a known good actuator and check for proper operation.
  8. Replace the temperature control actuator if it is determined to be the cause of the problem.

Replacement

[LH, Driver]
  1. Disconnect the negative (-) battery terminal.
  2. Remove the emergency pad lower panel. (Refer to Body - "Emergency Pad Lower Panel")
  3. Loosen the mounting screws and remove the air duct [LH] (A).
    Hyundai Palisade. Repair procedures
  4. Separate the Surround View Monitor (SVM) unit. (Refer to Body Electrical System - "SVM Unit")
  5. Disconnect the temperature control actuator connector (A), then loosen the mounting screw and remove the temperature control actuator (B).
    Hyundai Palisade. Repair procedures
  6. Install in the reverse order of removal.
  7. Disconnect the negative (-) battery terminal.
  8. Remove the center airbag panel. (Refer to Body - "Center Airbag Panel")
  9. Loosen the mounting screws and remove the air duct [RH] (A).
    Hyundai Palisade. Repair procedures
  10. Disconnect the temperature control actuator connector (A), then loosen the mounting screw and remove the temperature control actuator (B).
    Hyundai Palisade. Repair procedures
  11. Install in the reverse order of removal.
[RH, Passenger]

Test yourself

A quick Hyundai Palisade quiz: every answer comes with an explanation and a link to the manual page.