Some 2016-2017 Explorer/Police Interceptor Utility vehicles equipped with a 3.5L EcoBoost engine built on or before 30-Sep-2016 may exhibit an illuminated malfunction indicator lamp (MIL) with diagnostic trouble codes (DTCs) P0325, P0327, P0330 and/or P0332. This may be caused by a wire chafe condition near the knock sensor connector C109. Follow the Service Procedure steps to correct the condition.