Idle Air Control Motor
WARNING: This page is about a different car, the 2002 Dodge Intrepid, 2002 Chrysler Intrepid, 2002 Chrysler Concorde, and 2002 Chrysler 300M. However, it is still accessible from the selected car via links, so may be relevant.
Individual component testing is not available from manufacturer. If Idle Air Control (IAC) motor or wiring circuit failure exists, a DTC may be stored in the powertrain control module. Perform appropriate IAC motor diagnostic test. See DTC P0508: IAC VALVE SENSE CIRCUIT LOW or DTC P0509: IAC VALVE SENSE CIRCUIT HIGH in SELF-DIAGNOSTICS - CONCORDE, INTREPID & 300M article.