K95422063

Solution K95422063
Friday, July 6, 2018 6:09:33 PM CEST
Mack Models
Mack Model
LR , LEU , MRU , CHU , CXU , GU , TD
Engine family
Engine family
MP7 , MP8 , MP10
Emission Standard
Emission Standard
US16 , US15
** SOLUTION **
Title
Mack Chassis - Diagnostic Trouble Code ( DTC ) P2459 Lighting The Malfunction
Indicator Lamp ( MIL ); Possible Frequent Regeneration Requests - US14+OBD15 And
US14+OBD16 Emissions, Common Model Years 2016 And 2017
Cause
2016 and 2017 model year vehicles may log DTC P2459 - Diesel Particulate Filter
Regeneration Frequency (Bank 1). P2459 may log with or without frequent regeneration
requests. The diagnostic process that this DTC sets for is the monitor of how often
regenerations are requested by the Engine Control Module ( EMS ), and is intended to
determine when the Diesel Particulate Filter ( DPF ) needs to be serviced or indicate a
problem causing rapid soot accumulation. Chassis experiencing repeat occurrences of
P2459 are most commonly units operating in applications that involve any of the below:
- Frequent stop-and-go operation (food service deliveries, for example)
- Local operation with little to no drive time at stable highway speeds or short overall
distance traveled at one time
• Passive regeneration only occurs when exhaust temperatures are able to reach the
correct level and are sustained at that level while the chassis is in motion. These
conditions are normally only seen during highway operation.
- Operation requiring an extended amount of idling or operation at low speeds (Paving
and construction; mining)
Solution
Verify the chassis emissions level
- Details can be found in the Product Details box on the Product tab in PTT as seen below:
Review the Detailed Status Information for the relevant code on the DTC Readout.
Software improvements have been released for both emissions levels to address
this DTC. Field Service Bulletins with information and instructions have been
published for each emissions level. Both FSBs can be found under the Service tab
in Impact, Function Group 284. The articles can also be searched for by Title.
Refer to the chart below for the correct bulletin information:
Emissions Level
Field Service Bulletin
(Model Year)
US14+OBD15
FSB 284-064 Engine Control Module (ECM) and
(2016)
Aftertreatment Control Module (ACM), Reprogramming
US14+OBD16
FSB 284-065 Engine Control Module (ECM) and
(2017)
Aftertreatment Control Module (ACM), Reprogramming
If the Bulletin does not appear when searched with either VIN or Chassis
information entered, search by model:
1. Clear any chassis information from the Search box.
2. Select or enter the applicable model.
3. Make sure Title is selected in the Search By field. Enter the correct Bulletin title in the
text entry field.
4. Press the Search button. The operation will appear in the results window.
5. Select the correct vehicle configuration from the list that appears as shown below:
If software is current and the code is present, the code confirmed status should be
verified to be TRUE as shown above before continuing diagnosis.
Codes and symptoms that may be related to P2459 should be diagnosed prior to
P2459 itself.
NA_Sister solutions
K97651904
Campaign code
FSB284-064, FSB284-065
Solution visibility
Dealer distribution
Function(s)/component(s) affected
Function affected
FSB
, DPF , 1 1 0 EMS , Diagnostic tool
Function Group
Function Group
254 catalytic converter; exhaust emission control equipment , 258 emissions aftertreatment , 284 control system, fuel supply
Customer effect
Main customer effect
regeneration , diagnostics/methodology , efficiency/abnormal behavior , fault code
/display
Fault code(s)
OBD 2013 Diagnostic
Trouble Codes
P2459
Conditions
Vehicle operating mode
Frequency of occurrence of
problem
when driving , when stationary
always
Road conditions
city driving
Administration
Author
RU4469V
Dealer ID
RU4469V
Last modified by
RU4469V
Creation date
12-01-2018 17:01
Date of last update
19-06-2018 18:06
Review date
30-04-2017 00:04
Status
Published
Average score
4
Number of scores
1
NA_Reviewer
ut0031h
NA_Author_Group
GTT