B9 Tribeca F6-3.0L DOHC (2006)
11. Turn the ignition key to the ON position, and run the blower at high speed for approx. 1 minute. Stop the blower to check the ventilation grill on
the instrument panel. While moving the tester closer to the grill, run the blower for 1 or 2 seconds, then stop it. Check the grill at that point for at
least 10 seconds.
12. Check the valve in the service port.
13. Visually check the rubber seal in the service port cap.