Knock Sensor
WARNING: This page is about a different car, the 2003 Dodge Intrepid, 2003 Chrysler Intrepid, 2003 Chrysler Concorde, and 2003 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 a knock sensor or wiring circuit failure exists, a DTC may be stored in the powertrain control module. Perform related diagnostic test. See DTC P0325: KNOCK SENSOR #1 CIRCUIT under DIAGNOSTIC TESTS in SELF-DIAGNOSTICS - CONCORDE, INTREPID & 300M article.