Kia Cee'd: Heater / Mode Control Actuator Repair procedures

Kia Cee'd JD Service Manual / Heating,Ventilation, Air Conditioning / Heater / Mode Control Actuator Repair procedures

Inspection

1.	Turn the ignition switch OFF.

2.	Disconnect the mode control actuator connector.

Verify that the mode control actuator operates to the defog mode when connecting 12V to terminal 3 and grounding terminal 4.

Verify that the mode control actuator operates to the vent mode when connected in reverse.

1. -
2. -
3. Defog mode
4. Sensor ground

5. Feedback signal
6. Sensor (+ 5V)
7. Vent mode

4.	Connect the mode control actuator connector.

5.	Turn the ignition switch ON.

Check the voltage between terminal 4 and 5.

Specification

With auto defogging activated

Door position	Voltage (V)	Error detecting
Vent	0.3	Low voltage : 0.1V or less
Vent / Defog	1.03
Vent / Defog / Floor	2.5
Bi-Level	1.77
Floor	3.23
Mix	3.97
Defog	4.7	High voltage : 4.9V or more

It will feedback the current position of the actuator to the controls.

7.	If the measured voltage is not within specification, substitute with a known-good mode control actuator and check for proper operation.

8.	If the problem is corrected, replace the mode control actuator.

Replacement

1.	Disconnect the negative (-) battery terminal.

2.	Remove the crash pad lower panel. (Refer to Body - "Crash Pad Lower Panel")

3.	Remove the driver side shower duct (A) after loosening the screw.

4.	Remove the brake pedal assembly. (Refer to Brake System - " Brake Pedal")

5.	Disconnect the connector (A) and then remove the mode control actuator (B) after loosening the mounting screws.

6.	Install in the reverse order of removal.

Mode Control Actuator Description and operation

Description The mode control actuator is located at the heater unit. It adjusts the position of the mode door by operating the mode control actuator based on signal of A/C cont ...

PTC Heater (Diesel Engine) Description and operation

Descriptionddd The PTC (Positive Temperature Coefficient) heater is installed at the exit or the backside of the heater core. The PTC heater is an electric heater using a PTC e ...

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