Solution K86412082
Tuesday, March 6, 2018 7:32:49 PM CET

Solution
Title (customer effect)

Engine Diagnostic Trouble Codes ( DTC's ) P24A0 And P249F Lighting The
Malfunction Indicator Lamp ( MIL ) - OBD15 (Commonly Model Year 2016) And
Newer (Includes Common Rail Fuel System)

Cause

Diagnostic Trouble Codes ( DTC ) P24A0 and P249F Lighting The Malfunction
Indicator Lamp ( MIL ). Troubleshooting steps leading to No Fault Found. The
following emissions levels are affected:
• OBD15 - Model Year 2016
• US14+OBD16 - Model Year 2017 (Non-Common Rail Fuel System)
• US17+OBD16 - Model Year 2018 (Common Rail Fuel System)

Solution

Overview
Vehicles may display the MIL and one or both of the following DTCs:
P24A0 - Closed Loop DPF Regeneration Control At Limit - Temperature Too
Low
P249F - Excessive Time To Enter Closed Loop DPF Regeneration Control
These DTCs set from monitors on operations requiring Aftertreatment Hydrocarbon
Injector ( AHI, 7th Injector) input, including:
Moving Crystal Sublimations ( OBD15 and OBD16 emissions levels )
Moving Sulfur Regenerations ( US17 / OBD2016 emission level only )
These operations run in the background and are transparent to the driver. The fault codes
do not inhibit regeneration or cause any operational problem with the vehicle except
for the MIL illuminating. The regen will continue normally even with the fault codes
present. The faults may set over a several day period due to the amount of time it takes
to complete some moving regenerations.

Repair Information
Verify the chassis emissions level
• Details can be found in the Product Details box on the Product tab in PTT as seen

below:

For OBD15 And US14+OBD16 (Commonly Year Models 2016 and 2017, NonCommon Rail) Chassis:
- Software improvements have been released to address these codes. If one or both
codes are present and there are no other symptoms to indicate a physical issue,
software should be checked and updated as necessary.
- One or two modules can be affected by this update. Ensure the proper
instructions are followed:
- If the chassis has had containment software loaded previously:
• Reprogram the Engine Control Module ( EMS ) ONLY
- If the chassis has not had software containment
• Reprogram the following modules in the order listed.
1. Engine Control Module ( EMS )
2. Aftertreatment Control Module ( ACM )
- If the chassis returns for frequent recurrence of the code following the software
update, normal Guided Diagnostic procedures will need to be followed.
For US17+OBD16 (Common Rail Fuel System) chassis:
Verify that EMS and ACM software do not have any updates available
Perform a sulfur regen using Premium Tech Tool ( PTT ) and clear DTCs.
This will temporarily resolve the fault codes. Do Not change any components on
subject vehicles with these fault codes.

Internal comments (BO)

For US17+OBD2016 emission level vehicles, the next software release ( most likely in
September 2017 ) will be an improvement to this diagnostic.
Note: After the final corrective action is released for QJ 1-6720277401 rclo P249F,
P24A0, EACH vehicle that has received the Containment Action 4 MUST be returned to
a Dealership to load the final Software and Data Sets.

Temporary solution

Temporary solution

Solution visibility

Dealer distribution

Function(s)/component(s) affected

Function affected

engine , exhaust , EGR , CV electronic control unit , 1 1 0 EMS , MID 128 – EMS ,
MID 140 – IC04 / IC05 , EECU , Diagnostic tool

Function Group
Function Group

254 catalytic converter; exhaust emission control equipment , 258 emissions aftertreatment , 2841 Electronic Control Unit

Customer effect
Main customer effect

regeneration , calibration/programming/pairing/missing operation , diagnostics
/methodology , fault code/display

Lights/Messages on
information display

message on display , - - - - , - - / - -

Fault code(s)
OBD 2013 Diagnostic
Trouble Codes

POWERTRAIN , P249F00 , P24A0

Conditions
Vehicle operating mode
Frequency of occurrence of
problem

when driving , when stationary
always

Administration
Author

ut0389h

Last modified by

RU4469V

Creation date

12-01-2017 21:01

Date of last update

07-02-2018 20:02

Review date

16-02-2017 00:02

Status

Published

Average score

2.142857074737549

Number of scores

7

NA_Author_Group

GTT

NA_MACK_Vehicle_Range
NA_MACK_Vehicle_Ran
ge

Conventional , CHU , CXU , GU

NA_VOLVO_Vehicle_Range
NA_VOLVO_Vehicle_Ra
nge

Conventional , VNL , VNM , VHD , VAH

Engine family
Engine family

Volvo , 11L Engine , 13L Engine , Mack , MP7 , MP8

Emission Standard
Emission Standard

2018 , OBD2017 , US17 GHG , US16 , US15 , US14 GHG