1807314

Flash: 3.0L Powertrain Diagnostic And System Enhancements EGR System And AC Compressor Relay Operation This bulletin involves reprogramming the Powertrain Control Module (PCM) with the latest available software. The following powertrain system improvements/enhancements are included in this software release. ? Enhancements to improve A/C compressor relay duty cycle operation to prevent ignition off battery draw. ? Powertrain system improvements to enable EGR cleaning routine. ? Software to eliminate Malfunction Indicator Lamp (MIL) Illumination with no defect found for Diagnostic Trouble Code (DTC) P016A-00 - Excessive Time To Enter Closed Loop Air/Fuel Ratio Control.