Latest PCM flash update

[Bossman]

Does anyone know what the current PCM update is & what it consist of? Went to dealer today to have my flickering console interior light worked on. But they couldn't perform the update because they said there system was down. Just curious what the flash consist of.

 

[Bob4x4]

Assuming you have a 12-15Customers may experience a Malfunction Indicator Lamp (MIL) Illumination. Upon furtherinvestigation, a technician may find one or more of the following Diagnostic Trouble Codes(DTCs) set in the PCM memory:• **P218F - Reductant No Flow Detected.• P242F - Diesel Particulate Filter Restriction - Ash Accumulation.• P2281 - Air Leak Between MAF And Throttle Body.**• P205E - (Diesel Exhaust Fluid) Reductant Tank Temperature Sensor CircuitIntermittent (setting when the block heater is plugged in).• U110E - Lost Ambient Temperature Message.• P20E8 - (Diesel Exhaust Fluid) Reductant Pressure Too Low.• P1477 - Intake Air Diverter Valve Position Sensor Circuit Shorted To Ground.• U3017 - Control Module Timer/Clock Performance.• P0087 - Fuel Rail Pressure Too Low.• P0544 - Exhaust Gas Temperature Sensor Circuit - Sensor 1/1.• P0128 - Thermostat Rationality. In cold ambient temperatures.• P214D - SCR NOx Catalyst Outlet Temperature Too High During Particulate FilterRegeneration.• P24A5 - Exhaust Gas Recirculation (EGR) Cooler Bypass Bank 1 Control Stuck.• P040B - Exhaust Gas Recirculation Temperature Sensor “A” Circuit Performance.• U1421 - Implausible Ignition Key Off Time Received.• P0420 - Catalyst Efficiency Below Threshold.• P026B - Injection Timing Performance.• P04DB - Crankcase Ventilation System Disconnected.• P1C55 - NOx Sensor Intermittent - Bank 1 Sensor 1.• P202E - Diesel Exhaust Fluid (DEF) Reductant Injector Performance.• P20EE - SCR NOx Catalyst Efficiency Below Threshold - Bank 1.• P2002 - Diesel Particulate Filter Efficiency Below Threshold.• P0604 - Internal Control Module RAM.• P1451 - Diesel Particulate Filter System Performance.In addition to the above symptoms, the following software improvements areThe following DTCs have been changed from a one trip fault to a two trip fault:• P0201 - P0206 - Fuel Injector X Circuit Open Fault Codes.• P049D - EGR Control Position Exceeding Learning Limit.• P226C - Turbocharger Boost Control “A” Slow Response.The following DTC has been changed from a two trip fault to one trip fault:• U1A24 - Lost Communication With Ammonia Sensor.Other software enhancements included:• **NOx sensor calibration improvements.• Cap Urea Dosing at Low Temps.• Ambient Air Temperature (AAT) improvements.**• SCR efficiency scan tool test improvement.• 68RFE transmission shift quality improvements for low speed first to neutral andneutral to first (garage shifts).• Charging system improvements for single alternator applications (changes thecutout threshold from 600 to 500 RPM).• Diesel Exhaust Fluid (DEF) system calibration improvement during stationaryregeneration.• Cold idle speed stability improvement.• Fuel Filter Minder calibration improvement to save current mileage count du
module reflash.• Diagnostic improvement for DTC P20E8 - (Diesel Exhaust Fluid) ReductantPressure Too Low. Increases pump prime attempts to eliminate false failures.• Cruise control system improvements.• Improvements in exhaust brake switch operation.• Charging system improvements for dual alternator applications.• Cold Idle Stability improvements.• Charge Air Cooler (CAC) leak detection software improvements.• Various wiTECH data and system test additions or improvements.• 68RFE transmission shift quality improvements.
Dosing thaw calibration improvement.• I/M OBD II readiness - DTC P2002 improvements help Particulate Matter (PM) filtermonitor group to be set to ready more often.• Grid heater inhibit operation correction.• Add engine run time to fuel filter minder.• Dual alternator WiTECH improvements.• Inducement timer reset procedure improvement.• DEF refill detection calibration improvement.

 

[Bossman]

Thanks. I appreciate it. I was hoping for some improvement in the transmission flare shifts it drives me crazy. The coverter in my opinion is stay unlock for to long. I hate when it shifts it unlocks then locks. The window here needs to be shortened. But I guess that's the nature of it. I got a 14 cc 2500 longhorn