Repair Procedures: Inspection

WARNING: This page is about a different car, the 2017 Kia Niro. However, it is still accessible from the selected car via links, so may be relevant.

Switch "OFF" the Ignition.
Disconnect the mode control actuator connector.
Verify that the mode control actuator operates to the defrost mode when connecting 12V to terminal 3 and grounding terminal 7.
Verify that the mode control actuator operates to the vent mode when connected in reverse.

Mode Control Actuator [LH]

Fig 1: Connecting 12V To Terminal 3 And Grounding Terminal 7 - Mode Control Actuator (LH)
Courtesy of KIA MOTORS AMERICA, INC.

Mode Control Actuator [RH]

Fig 2: Connecting 12V To Terminal 3 And Grounding Terminal 7 - Mode Control Actuator (RH)
Courtesy of KIA MOTORS AMERICA, INC.
Connect the Mode Control Actuator Connector.
Switch "ON" the ignition.

Check the voltage between terminals 4 and 5.

Specification

Door Position	Voltage (V)	Error Detecting
Vent	0.3 ± 0.15	Low Voltage: 0.1V or less
Defrost	4.7 ± 0.15	High Voltage: 4.9V or more

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

If the measured voltage is not within specification, substitute with a known-good mode control actuator and check for proper operation.
Replace the mode control actuator if it is proved that there is a problem with it.