KC-2043 Rev 4

6/30/23, 1:59 PM
Article
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Engine Control Module (EMS) Software (MSW)
Information - Improvement List, Through June
2023 - US21+OBD2020 Emissions
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Vehicles equipped with Variable Geometry Turbocharger will be referred
to as VGT. Vehicles equipped with Turbo Compound will be referred to as
TC.
Software Release Table (Latest information at
top)
Date Available Via PTT
VGT MSW Part #
TC MSW Part #
June 2023 (Current)
24419463
November 2021
23958948
23958968
August 2020
23783118
23783119
January 2020
23820138
23841271
24419468 – Gen 1
24419471 – Gen 2
EMS software improvements with MSW Part
Number 24419463 / 24419468 / 24419471
Available from June 2023.
All Vehicles
VGT and TC EMS Software
Reduces fault frequency of following fault codes
• P02FA00 - Intake Throttle Valve Calibration error
• P220164 - NOx Sensor Bank 1 Sensor 1
• P04DB00 - Crankcase Ventilation System Disconnected
• P205B00 - Reductant Tank Temperature Sensor Circuit
Range/Performance
• P009400 - Fuel System Leak Detected - Small Leak
; Live
VGTUIEMS Software Only
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Improved 2589-08-03-18, Exhaust aftertreatment system analysis
test, to include evaluation of SCR Efficiency.
13L VGT EMS Software Only
Improve Engine Misfire Detection. Reduction of following misfire
faults.
• P030000 - Random Misfire Detected
TC EMS Software Only
Reduces fault frequency of following fault codes
• P047164 - Engine Exhaust Back Pressure Circuit Range/Performance
• P055B64 - Piston Cooling Oil Pressure Sensor Range/Performance
Added 2589-08-03-18, Exhaust aftertreatment system analysis test,
to evaluate NOx sensors and DEF dosing valve (no capability to
evaluate SCR efficiency).
EMS software improvements with MSW Part
Number 23958948/23958968.
Available from November 2021.
All Vehicles
VGT and TC EMS Software
The diagnostic for small fuel system leak (P009400) will not cause
Malfunction Indicator lamp (MIL) after this update.
• P009400 - Fuel System Leak Detected - Small Leak
Reduction of false faults on the following NOx Sensor faults:
• P225C00 - NOx Sensor Performance - Signal Stuck High Bank 1
Sensor 1
• P225E00 - NOx Sensor Performance - Signal Stuck High Bank 1
Sensor 2
Improved diagnostic function routines for EGR System Checks
;
Live UI
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• 2939-08-03-01 Exhaust Gas Recirculation Function has been replaced
with 2939-08-03-03 Exhaust Gas Recirculation System Analysis.
• New diagnostic is more capable in detecting issues with EGR system.
• Use TT2.8.51 or newer and update product information to run this
operation with new engine ECU software.
Improved diagnostic function routines for Exhaust Aftertreatment
System Checks
• 2549-08-03-03 NOx Conversion has been replaced by 2589-08-03-18
Exhaust Aftertreatment System Analysis (only NOx sensor and DEF
dosing valve tests available before update).
• 2589-08-03-05 Aftertreatment Selective Catalytic Reduction (SCR)
System, Test B, Option 4 is improved to run as expected. This test when
run heals P103B fault codes, after the repair.
Reduction of intake throttle ice formation in extreme cold weather
(less than 20 degrees Celsius Ambient) and extended idling.
Reduction of faults
• P040100 - Engine Exhaust Gas Recirculation 1 Valve Position Flow
Insufficient Detected
New fault code has been added to detect EGR temperature pin
fretting.
• P040B00 - Exhaust Gas Recirculation Temperature Sensor “A” Circuit
Range/Performance
Reduction of false faults
• P026B00 - Injection Timing Performance
• P042000 - Catalyst System Efficiency Below Threshold
• P260900 - Intake Air Heater System Performance
• P20DC00 - Exhaust Aftertreatment Fuel Supply Control Stuck Closed
• P008A00 - Low Pressure Fuel System Pressure - Too Low
• P20D000 - Exhaust Aftertreatment Fuel Injector "A" Stuck Closed
• P20CF7A - Exhaust Aftertreatment Fuel Injector "A" Stuck Open
• P20DE00 - Exhaust Aftertreatment Fuel Pressure Sensor Circuit
Range/Performance
Reduction of faults in cold ambient temperatures
UI
; Live
• P050C00
- Cold Start Engine Coolant Temperature Performance
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EMS software improvements with MSW Part
Number 23783113/23783119.
Available from August 2020.
All Vehicles
VGT and TC EMS Software
Add Dedicated Fuel Filter Pressure Sensor. Reintroducing
dedicated fuel pressure sensor and improved diagnostic to allow for
early dash cluster warning of fuel filter clogging.
Two Non-MIL fault codes added for pressure sensor electrical
faults.
• P253913 - Low Pressure Fuel System Circuit
• P254200 - Low Pressure Fuel System Sensor Circuit High
Performance Bonus Broadcasting Fix
• Driver gets a road speed limit increase upon meeting idle speed and
fuel efficiency targets. Function corrected so that trophy indicator, fuel
efficiency, and sweet spot are properly displayed on the instrument
cluster. Requires cluster software to complete corrections.
The diagnostic for small fuel system leak (P009400) will not cause
Malfunction Indicator lamp (MIL) after this update.
• P009400 - Fuel System Leak Detected – Small Leak
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Tags
p253913
p254200
intake throttle ice
p009400
volvo
mack
p0401-00
ems software
p0094-00
p225c-00
p225e-00
p0420-00
UI
; Livep2609-00
p008a-00
p20cf-7a
p02fa-00
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p02fa
p2201
p205b
p205b-00
p0471
p0471-64
p2201-64
p04db
p04db-00
p0094
p0300
p0300-00
p055b
p055b-64
p04db00
Categories
Make and Model > Mack > CXU/CHU/PI - Pinnacle
Make and Model > Mack > LR
Make and Model > Volvo > VNL
Make and Model > Volvo > VNR
Make and Model > Volvo > VNX
Make and Model > Volvo > VAH
Make and Model > Volvo > VHD
Emission Standard > US21 > US21+OBD20
Make and Model > Mack > MRU/TE - TerraPro
Vehicle System > Control Systems
Make and Model > Mack > AN - Anthem
Make and Model > Mack > GU/GR - Granite
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