Removal 1. Disconnect the vapor hose (A). 2. Remove the rubber pad (B), and then remove the PCV valve. Inspection 1. Insert a thin stick (A) into the PCV valve (B) of the threaded side to check that the plunger moves.
Schematic Diagram
C
Inspection 1. Turn the ignition switch OFF. 2. Disconnect the mode control actuator connector. 3. Verify that the mode control actuator operates to the defrost mode when connecting 12V to terminal 3 and grounding terminal 4. Verify that the mode control actuator operates to the vent mode when connected in reverse.