Repair Procedures: Inspection

WARNING: This page is about a different car, the 2016 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 temperature control actuator connector.
Verify that the temperature control actuator operates to the cool 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.

Fig 1: Check Temperature Control Actuator Operates To Cool And Warm Position
Courtesy of KIA MOTORS AMERICA, INC.
Connect the temperature control actuator connector.
Turn the ignition switch ON.

Check the voltage between terminals 5 and 4.

VOLTAGE SPECIFICATION

Door Position	Voltage (V)	Error Detecting
Max. cooling	0.3±0.15	Low voltage: 0.1V or less High voltage: 4.9V or more
Max. heating	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 temperature control actuator does not operate well, substitute with a known-good temperature control actuator and check for proper operation.
Use the replaced actuator if it performs well.