Ignition "OFF".
Disconnect the intake actuator connector.
Verify that the actuator operates to the recirculation position when connecting 12V to the terminal 3 and grounding terminal 4.
Verify that the intake actuator operates to the fresh position when connecting in the reverse.
1. - 2. – 3. Fresh 4. Recirculation | 5. 5V (Vcc) 6. Feedback Signal 7. Sensor Ground |