Ignition "OFF”
Disconnect the intake actuator connector.
Verify that the actuator operates to the recirculation position when connecting 12V to the terminal 1 and grounding terminal 2.
Verify that the intake actuator operates to the fresh position when connecting in the reverse.
If the intake actuator is not operated well, substitute with a known-good intake actuator and check for proper operation.
If the problem is corrected, replace the intake actuator.