VELOSTER(FS) >2013 > G 1.6 T-GDI > Heating,Ventilation, Air Conditioning > Blower > Intake Actuator>Repair procedures  
Inspection
1.
Ignition "OFF"
2.
Disconnect the intake actuator connector.
3.
Verify that the actuator operates to the fresh position when connecting 12V to the terminal 3 and grounding terminal 4.
4.
Verify that the intake actuator operates to the recirculation position when connecting in the reverse.

1. -
2. -
3. Fresh
4. Recirculation
5. Sensor (+5V)
6. Feedback Signal
7. Sensor Ground

5.
Check the voltage between terminals 6 and 7.
Door position
Voltage (6-7)
Error detecting
Recircualtion
4.55 ± 0.15V
Low voltage : 4.9V or less
Fresh
0.45 ± 0.15V
High voltage : 0.1V or more

6.
If the intake actuator is not operated well, substitute with a known-good intake actuator and check for proper operation.
7.
If the problem is corrected, replace the intake actuator.
Replacement
1.
Disconnect the negative (-) battery terminal.
2.
Remove the heater & blower unit.
(Refer to HA group - "Heater Unit")
3.
Loosen the mounting screws and then remove the intake actuator (A).

4.
Installation is the reverse order of removal.