Flash: Diagnostic and System Improvements
This bulletin involves selectively erasing and reprogramming the Engine Control Module
(ECM/PCM) with new software.
Several software improvements are available for vehicles equipped with a Cummins 6.7L
turbo Diesel.
Prevent Or Reduce Unnecessary Malfunction Indicator Lamp (MIL) Illumination For
The Following Diagnostic Trouble Codes (DTC?s). These DTC?s Are Currently
Tripped As A One Trip Fault And Should Have Been A Two Trip Fault:
? P049D - EGR CONTROL POSITION EXCEEDED LEARNING LIMIT
Improvements To Prevent Or Reduce Unnecessary Malfunction Indicator Lamp (Mil)
Illumination For:
? P202E - (DIESEL EXHAUST FLUID) REDUCTANT INJECTOR PERFORMANCE
? P20EE - SCR NOx CATALYST EFFICIENCY BELOW THRESHOLD - BANK 1
? P2002 - DIESEL PARTICULATE FILTER EFFICIENCY BELOW THRESHOLD
? P0604 - INTERNAL CONTROL MODULE RAM ERROR. This DTC may be caused
by enabling the remote throttle feature via the EVIC, and it will be accompanied by a
?service electronic throttle control? message in the EVIC.
Other Updates:
? OBD Template changes for P2453
? Fuel Filter Minder Calibration Changes
? Dual Fuel Tank component update
? Inducement Timer Reset (Feature enable in wiTech)
? PTO Denied Status Message Update
? PTO Horn Request sent to Body Control Unit (BCU)
? Wait To Start (WTS) bulb check timing improvements (1 second)
? Frozen CAC Diagnostic Improvement
