K95422063

Solution K95422063
Thursday, May 3, 2018 10:49:56 PM CEST
NA_MACK_Vehicle_Range
NA_MACK_Vehicle_Ran
ge
LR , LEU , MRU , CHU , CXU , GU , TD
Engine family
Engine family
MP7 , MP8 , MP10
Emission Standard
Emission Standard
US16 , US15
** SOLUTION **
Title (customer effect)
Mack Chassis - Diagnostic Trouble Code ( DTC ) P2459 Lighting The Malfunction
Indicator Lamp ( MIL ); Possible Frequent Regeneration Requests - OBD15 And
US14+OBD16 (Non-Common Rail) Chassis
Cause
OBD15 And US14+OBD16 (Non-Common Rail) Chassis may log DTC P2459 - Diesel
Particulate Filter Regeneration Frequency (Bank 1). P2459 may log with or without
frequent regeneration requests. Guided Diagnostic steps may complete with No Fault
Found.
Solution
Overview
OBD15 And US14+OBD16 (Non-Common Rail) Chassis may log DTC P2459 during
operation. 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)
Repair
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.
For US14+OBD15
- Software improvements have been released to address this code. Refer to the table below:
- Note: Premium Tech Tool (PTT) may display a message stating that the current software
is the latest edition. Follow the option to reload the current software if this occurs.
For US14+OBD16
- Refer to FSB 284-065 Engine Control Module (EMS) and Aftertreatment Control
Module (ACM), Reprogramming.
• This bulletin is current as of 17 April 2018.
If software is current and the code is present, the Confirmed DTC status should be
verified to be TRUE as shown above before continuing diagnosis.
- Codes and symptoms related to P2459 should be diagnosed prior to P2459 itself.
Solution visibility
Dealer distribution
Function(s)/component(s) affected
Function affected
DPF , 1 1 0 EMS , Diagnostic tool
Function Group
Function Group
254 catalytic converter; exhaust emission control equipment , 258 emissions aftertreatment
Customer effect
Main customer effect
regeneration , calibration/programming/pairing/missing operation , diagnostics
/methodology , efficiency/abnormal behavior , fault code/display
Lights/Messages on
Driver's information warning pictogram
information display
Fault code(s)
OBD 2013 Diagnostic
Trouble Codes
P2459
Conditions
Vehicle operating mode
Frequency of occurrence of
problem
Road conditions
when driving , when stationary
always
city driving
Administration
Author
RU4469V
Dealer ID
RU4469V
Last modified by
RU4469V
Creation date
12-01-2018 17:01
Date of last update
23-04-2018 16:04
Review date
30-04-2017 00:04
Status
Published
NA_Reviewer
ut0031h
NA_Author_Group
GTT