Air Recirculation Malfunction (Always in Recirculation Position)
WARNING: This page is about a different car, the 2003 Pontiac Vibe. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Air Recirculation Malfunction (Always In Recirculation Position) Reference Table
Courtesy of GENERAL MOTORS CORP.
Fig 2: Diagnostic System Check - Air Recirculation Malfunction (Always In Recirculation Position)