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Kia Sedona: Rear Temperature Control Actuator Repair procedures - Rear Heater - Heating,Ventilation And Air Conditioning - Kia Sedona YP Service ManualKia Sedona: Rear Temperature Control Actuator Repair procedures

Third generation YP (2014-2025) / Kia Sedona YP Service Manual / Heating,Ventilation And Air Conditioning / Rear Heater / Rear Temperature Control Actuator Repair procedures

Inspection
1.
Turn the ignition switch OFF.
2.
Disconnect the temperature control actuator connector.
3.
Verify that the actuator operates to the recirculation position when 12V is connected to terminal 3 and ground to terminal 7.
Verify that the temperature control actuator operates to the warm position when connected in reverse.

1. -
2. -
3. Cool position
4. Sensor (+ 5V)
5. Feedback signal
6. Sensor ground
7. Warm position

4.
Connect the mode control actuator connector.
5.
Turn the ignition switch ON.
6.
Check the voltage between terminals 5 and 4.
Door Position
Voltage (V)
Error Detecting
Max. cooling
0.3±0.15
Low voltage : 0.1V or less
Max. heating
4.7±0.15
High voltage : 4.9V or less

It will feedback the current position of the actuator to controls.
7.
If the measured voltage is not within specification, substitute with a known-good mode control actuator and check for proper operation.
8.
Replace the mode control actuator if it is proved that there is a problem with it.
Replacement
1.
Remove the rear heater & A/C unit.
(Refer to Rear Heater - "Rear Heater Unit")
2.
Disconnect the rear mode control actuator connector (A) and then remove the rear mode control actuator (B) after loosening the screws.

3.
Install in the reverse order of removal.
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