Kia Optima: Blower / Intake Actuator

Kia Optima DL3 2019-2025 Service and Repair Manual / Heating, Ventilation and Air Conditioning / Blower / Intake Actuator

Components and components location

Components Location

1. Intake actuator

Description and operation

Description

The intake actuator is located at the blower unit. It regulates the intake door by a signal from the control unit. Pressing the intake selection switch will shift between recirculation and fresh air modes.

Repair procedures

Inspection

1.	Turn the ignition switch OFF.

2.	Disconnect the intake actuator connector.

Verify that the intake actuator operates to the fresh position when connecting 12V to terminal 3 and grounding terminal 7.

Verify that the intake actuator operates to the recirculation position when connected in reverse.

1. -
2. -
3. Recirculated air
4. Sensor (+ 5V)

5. Feedback signal
6. Sensor ground
7. Fresh air

4.	Connect the intake actuator connector.

5.	Turn the ignition switch ON.

Check the voltage between terminal 6 and 5.

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

Specification

Door position	Voltage (V)	Error detecting
Fresh air	0.5 ± 0.15	Low voltage : 0.1V or less
Recirculated air	4.5 ± 0.15	High voltage : 4.9V or more

7.	If the intake actuator does not operate well, substitute with a known-good intake actuator and check for proper operation.

8.	Replace the intake actuator if it is proved that there is a problem with it.

Replacement

1.	Disconnect the negative (-) battery terminal.

2.	Remove the main crash pad assembly. (Refer to Body - "Main Crash Pad Assembly")

3.	Separate the connector (A), loosen the mounting screws and remove the auto defogging actuator (B).

4.	To install, reverse the removal procedure.

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