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Home >> Hyundai >> 2016 >> Azera Base >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Heater System >> Temperature Control Actuator >> Repair Procedures >> Inspection

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] 

    Fig 1: Checking Temperature Control Actuator (Drive)
    G10369831Courtesy of HYUNDAI MOTOR AMERICA
  4. Check the voltage between terminals 4 and 5 (Drive).

    Specification 

    VOLTAGE SPECIFICATION

    Door position Voltage(4-5) 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] 

    Fig 2: Checking Temperature Control Actuator (Passenger)
    G10369832Courtesy of HYUNDAI MOTOR AMERICA
  5. Check the voltage between terminals 4 and 5 (Passenger).

    Specification 

    VOLTAGE SPECIFICATION

    Door position Voltage(4-5) 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.
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