FLASH: Diagnostic and System Enhancements
This bulletin involves selectively erasing and reprogramming the Engine Control Module (ECM) with new software.
Cab chassis trucks equipped with a 6.7L Cummins diesel have a number of software improvements available. This latest Service Bulletin (SB) will include:Improvements To Prevent Unnecessary Malfunction Indicator Lamp (MIL) Illumination For:
P061A - ETC LEVEL 2 TORQUE PERFORMANCE
P229F - AFTERTREATMENT NOx SENSOR CIRCUIT PERFORMANCE - BANK 1 SENSOR 2
P2453 - DIESEL PARTICULATE FILTER PRESSURE SENSOR A CIRCUIT PERFORMANCE
P2609 - INTAKE AIR HEATER SYSTEM PERFORMANCE
P1123 - POWER TAKE OFF SYSTEM MONITOR CONTROL ERROR
U010E - LOST COMMUNICATION WITH DIESEL EXHAUST FLUID CONTROL UNIT
U059F - INVALID DATA RECEIVED FROM NOx SENSOR "B"
P20EE - SCR NOx CATALYST EFFICIENCY BELOW THRESHOLD - BANK 1; for DTC's set at highway speed and/or high load drive cycles Vehicles with DTC P20EE set in conditions other than highway speed and/or high load drive cycles should have normal diagnostics performed Enhanced Diagnostics For:
Selective Catalyst Reduction (SCR) efficiency diagnostic improvements.Other Updates:
Too frequent regeneration readiness improvement
Correct CAC out voltage in WiTech
Add ability to read EMP sensor value in WiTech
Enable EMP deicing algorithm
Display correct crankcase pressure in WiTech
Display correct EGR position in WiTech
Improve idle shutdown messages - extra message removed
Display correct alternator voltage in WiTech
Idle shutdown message on EVIC.
Turbo protection feature (Not displayed if vehicle is in park or no vehicle speed). Limits RPM at cold ambient to prevent turbo damage.
Scan tool display updates.
Correct operation of remote PTO.
System robustness improvements.
