18-072-15

Flash: 6.7L Diagnostic And System Improvements This bulletin involves reprogramming the Engine Control Module/Powertrain Control Module (ECM/PCM) with the latest available software. A small number of customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation a technician may find the following Diagnostic Trouble Codes (DTCs) set in the PCM memory. ? U110E-Lost Ambient Temperature Message ? P205E-(Diesel Exhaust Fluid) Reductant Tank Temperature Sensor Circuit Intermittent (setting when the block heater is plugged in) In addition to addressing the above DTCs, the following powertrain system improvements/enhancements are also included in this software release. ? 68RFE Transmission Overall Shift Quality Improvements ? OBD Misfire Monitoring Improvement (68RFE Trans Only)