PCV Hose Inspection
WARNING: This page is about a different car, the 2006 Suzuki XL-7. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
Be sure to check that there is no obstruction in PCV valve or its hoses before checking engine idle speed / IAC duty for obstructed PCV valve or hose hampers its accurate checking.
Check hoses for connection, leakage, clog, and deterioration.
Replace as necessary.