Hyundai Elantra: Blower / Intake Actuator
Description and operation
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.
Components and components location

Specifications
Door position
|
Voltage (V)
|
Error detecting
|
Max. cooling
| 0.3 ± 0.15
| Low voltage : 0.1V or less
|
Max. heating
| 4.7 ± 0.15
| High voltage : 4.9V or more
|
Repair procedures
1. | Verify that the intake actuator operates to the fresh position when connecting 12V to terminal 3 and grounding terminal 7. |
2. | Verify that the intake actuator operates to the recirculation position when connected in reverse. 
Pin No
| Function
| 1
| -
| 2
| -
| 3
| Fresh air
| 4
| Sensor REF (+5V)
| 5
| Feedback signal
| 6
| Sensor ground
| 7
| Recirculated air
|
|
3. | Connect the intake actuator connector. |
4. | Turn the ignition switch ON. |
5. | Check the voltage between terminal 6 and 5. |
6. | If the measured voltage is not within specification, check the operation by replacing the existing intake actuator with a new genuine part. After that, determine whether replacement of the temperature control actuator is required or not. |
1. | Disconnect the negative (-) battery terminal. |
2. | Remove the Heater & Blower unit assebmly. (Refer to Heater - "Heater Unit") |
3. | Disconnect the connector (A) and then remove the intake actuator (B) after loosening the mounting screws. 
|
4. | To install, reverse the removal procedure. |
Description and operation
Description The climate control air filter is located in the blower unit. It eliminates foreign materials and odor. The particle filter performs a role as an odor filter as well as a conventional dust filter to ensure comfortable interior environment...
Other information:
Components and components location
Component Location [This illustration shows the LHD type. RHD type is symmetrical.]1. Crash pad center panel
Repair procedures
Replacement
•
When removing with a flat - tip screwdriver or remover, wrap protective tape around the tools to prevent damage to components. •
Use a plastic pane..
Sunroof inside air recirculation
When the sunroof is opened, outside
(fresh) air will be automatically selected.
At this time, if you press the air intake
control button, recirculated air position
will be selected but will change back
to outside (fresh) air after 3 minutes.
When the sunroof is closed, the air
intake position will return to the original
position that was selected.
Auto comf..