Kia Rio: Foot Actuator (With Auto Defogging System) Inspection - Heater - Heating,Ventilation, Air Conditioning - Kia Rio UB 2012-2019 Service ManualKia Rio: Foot Actuator (With Auto Defogging System) Inspection

1.
Turn the ignition switch OFF.
2.
Disconnect the foot connector.
3.
Verify that the foot actuator operates to the open position when connecting 12V to the terminal 3 and grounding terminal 4.
Verify that the foot actuator operates to the close position when connecting in the reverse.


1. -
2. -
3. Open
4. Close
5. Sensor ground
6. Feedback signal
7. Sensor (+ 5V)

4.
Connect the foot actuator connector.
5.
Turn the ignition switch ON.
6.
Check the voltage between terminals 6 and 5.
Specification
With auto defogging activated
Door position
Voltage (V)
Error detecting
Vent
0.9 0.3
Low voltage: 0.1V or less
Bi-Level
3.0 0.3
 
Floor
3.9 0.3
 
Mix
3.25 0.3
 
Defog
0.9 0.3
High voltage: 4.9V or more

With auto defogging deactivated
Door position
Voltage (V)
Error detecting
Vent
0.9 0.3
Low voltage: 0.1V or less
Bi-Level
3.0 0.3
 
Floor
2.5 0.3
 
Mix
2.5 0.3
 
Defog
0.9 0.3
High voltage: 4.9V or more

It will feedback current position of actuator to controls.
7.
If the measured voltage is not within specification, substitute with a known-good foot actuator and check for proper operation.
8.
Replace the foot actuator if it is proved that there is a problem with it.
Foot Actuator (With Auto Defogging System) Description
The foot actuator is located at the heater unit. It adjusts position of the foot door in heater unit of the vehicle equipped with the auto defogging system. ...

Foot Actuator (With Auto Defogging System) Replacement
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