Repair Procedures: Inspection

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

Turn the ignition switch OFF.
Disconnect the mode control actuator connector.
Verify that the mode control actuator operates to the defrost mode when 12V is connected to terminal 3 and ground to terminal 7.
Verify that the mode control actuator operates to the vent mode when connected in reverse.

Fig 1: Checking Mode Control Actuator Operates To Vent And Defrost Mode
Courtesy of KIA MOTORS AMERICA, INC.
Connect the mode control actuator connector.
Turn the ignition switch ON.

Check the voltage between terminals 5 and 4.

VOLTAGE SPECIFICATION

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

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

If the mode control actuator does not operate well, substitute with a known-good mode control actuator and check for proper operation. Use the replaced actuator if it performs well.