Hyundai Kona Quiz
Heating, Ventilation, and Air Conditioning

Heater and A/C Control Unit (DATC) Repair Procedures

In this manual: Heating, Ventilation, and Air Conditioning
General Information — 17Engine Mechanical System — 85Engine Electrical System — 50Emission Control System — 26Engine Control System/Fuel System — 152DCT (Dual Clutch Transmission) System — 50Four-Wheel Drive (4WD) System — 21Propeller Shaft and Axle (2WD-FF) — 28Suspension System (without ECS) — 32Steering — 21Restraints — 38Brake System — 64Body (Interior and Exterior) — 205Body Electrical System — 1Heating, Ventilation, and Air Conditioning — 66
11steps
~66min
3/5difficulty
Done 0 of 11

Self-Diagnosis

  1. Self-Diagnosis Procedure.
  2. Trouble Code Display
    1. Continuous Operation: DTC.
    2. Continuous Operation: DTC.
    3. STEP operation. A. Normal code or one trouble code is the same as continuous operation. B. Trouble code.
  3. If trouble codes are displayed during the inspection, check the cause of the malfunction by referring to the trouble codes.
    Display Description of Malfunction
    0 Normal
    11 Incar sensor OPEN
    12 Incar sensor SHORT
    13 Ambient sensor OPEN
    14 Ambient air sensor SHORT
    17 Evaporator sensor OPEN
    18 Evaporator sensor SHORT
    19 Driver side temperature potentiometer OPEN or SHORT
    20 Driver side potentiometer malfunction
    21 Mode door potentiometer OPEN or SHORT
    22 Mode door potentiometer malfunction
    25 Intake door potentiometer OPEN or SHORT
    26 Intake door potentiometer malfunction
    31 Auto Defog Sensor (Open)
    Auto Defog Sensor (Short)
    32 Passenger side temperature potentiometer OPEN or SHORT
    40 Auto Defog Actuator Open or Short
    41 Defog Door Potentiometer Malfunction
    44 Cluster Anion Generator Malfunction
    45 APT CAN signal error
    47 RPM CAN signal error
    48 Vehicle speed CAN signal error
    49 Engine coolant temperature CAN signal error
  4. Fail-safe
    NO Item Fault Fail-safe
    1 Incar sensor Open or short Monitor value 25 °C
    2 Ambient sensor Open or short Monitor value 20 °C
    3 Evaporator sensor Open or short Monitor value -2°C (28.4°F)
    4 Mode door potentiometer Open or short Fix the vent position when the vent mode is selected.
    Fix the defrost position by selecting any mode other than vent.
    Fix the vent position by selecting IG ON → OFF.
    Fix the defrost position when selecting floor blow.
    5 Temperature door potentiometer (MTC) Open or short If the temperature setting is 1 to 7 steps, fix at the maximum cooling position.
    If the temperature setting is 8 to 15 steps, fix at the maximum heating position.
    6 Temperature door potentiometer (DATC) Open or short If the temperature is set to 17 °C - 24 °C, fix at the maximum cooling position.
    If the temperature is set to 25 °C - 32 °C, fix at the maximum heating position.
    7 Intake door potentiometer Open or short Fix the vent position when selecting the vent mode.
    Fix the defrost position by selecting any mode except the vent mode.

Replacement

  1. Disconnect the negative (-) battery terminal.
  2. Remove the crash pad lower panel. (Refer to Crash Pad - "Crash Pad Lower Panel")
  3. Remove the airbag assembly cover [RH]. (Refer to Crash Pad - "Crash Pad Trim Assembly [RH]")
  4. Remove the floor console upper front trim. (Refer to Floor Console - "Floor Console Assembly")
  5. After loosening the mounting screws, remove the heater and air conditioning controller unit (A).
  6. Disconnect the connector (A) and the air hose (B).
  7. To install, reverse the removal procedure.

Test yourself

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