Heating, Ventilation, and Air Conditioning
Mode Control Actuator Repair Procedures
In this manual: Heating, Ventilation, and Air Conditioning
14steps
~84min
3/5difficulty
Done 0 of 14
Inspection
- Turn the ignition off.
- Disconnect the mode control actuator connector.
- Check that the mode control actuator operates in defrost mode when 12 V is applied to terminal 3 and terminal 4 is grounded. Check that the mode control actuator operates in vent mode when the connection is reversed.

1. -
2. -
3. Defrost Mode
4. Sensor Ground5. Feedback signal
6. Sensor (+5V)
7. Vent mode - Connect the mode control actuator connector.
- Turn the ignition on.
- Check the voltage between terminals 4 and 5. Specification With auto defog activated
Door Position Voltage (V) Fault Detection vent 0,3 Low voltage:
0.1 V or lessVent / Defrost 1,03 Vent / Defrost
/ Floor2,5 Bi-Level 1,77 Floor 3,23 Mix 3,97 Defog 4.7 High voltage:
4.9 V or more
It will report the current actuator position to the controls. - If the measured voltage does not meet the specification, replace the mode control actuator with a known good actuator and check for proper operation.
- If the problem is resolved, replace the mode actuator.
Replacement
- Disconnect the negative (-) battery terminal.
- Remove the emergency pad lower panel. (Refer to Body - "Emergency Pad Lower Panel")
- Remove the driver side air vent duct (A) after loosening the screw.

- Remove the brake pedal assembly. (Refer to Brake System - "Brake Pedal")
- Disconnect the connector (A) and remove the mode control actuator (B) after loosening the mounting screws.

- Install in the reverse order of removal.
Test yourself
A quick Kia Cee'd quiz: every answer comes with an explanation and a link to the manual page.
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