Heating, Ventilation, and Air Conditioning
Mode Control Actuator Repair Procedures
In this manual: Heating, Ventilation, and Air Conditioning
15steps
~90min
4/5difficulty
Done 0 of 15
Inspection
- Turn the ignition off.
- Disconnect the mode control actuator connector.
- Make sure the mode control actuator operates in the defrost mode when 12 V is applied to terminal 3 and ground terminal 4. Make sure the mode control actuator operates in the vent mode when the connection is reversed.

1. -
2. -
3. Defrost Mode
4. Vent Mode5. Sensor Ground
6. Feedback Signal
7. Sensor (+5V) - Connect the mode control actuator connector.
- Turn the ignition on.
- Check the voltage between terminals 6 and 5.Specification
Door Position Voltage (V) Fault Detection vent 0,5 ± 0,15 Low voltage: 0.1 V or less Defrost 4,5 ± 0,15 High voltage: 4.9 V or more - If the measured voltage does not meet the specification, check operation by replacing the existing mode control actuator with a new genuine part. Then determine whether replacement of the mode control actuator is required or not.
Diagnosis Using GDS
- The heating, ventilation, and air conditioning system faults can be quickly diagnosed using the Global Diagnostic System (GDS). ※ The GDS provides the following information: (1) Self-diagnosis: Check and display of diagnostic trouble codes (DTC). (2) Current data: Check the input/output status of system data. (3) Active test: Check the operating status of the system. (4) Additional functions: Other controls such as system option and zero point adjustment.
- Select "Vehicle Model" and the system to be checked to inspect the vehicle with the tester.
- Select the "Current Data" menu to check the current input/output data status. The input/output data for the sensors corresponding to the Mode Control Actuator can be checked.

- To perform a forced operation on the mode control actuator input factors, select "ACTUATOR TEST".

Replacement
- Disconnect the negative (-) battery terminal.
- Remove the driver airbag module assembly. (Refer to Body - "Driver Airbag Module Assembly")
- Disconnect the connector (A) and remove the mode control actuator (B) after loosening the mounting screws.

- To install, reverse the removal procedure.
Test yourself
A quick Hyundai Kona quiz: every answer comes with an explanation and a link to the manual page.
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