Solution K97651904
Tuesday, March 6, 2018 7:33:56 PM CET

Solution
Title (customer effect)

Volvo 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 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 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:

For OBD15 And US14+OBD16 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.
• Updated software for OBD15 chassis will have a Main Software
(MSW) 23167877 or newer
• Updated software for US14+OBD2016 chassis will have a Main
Software (MSW) 23169815 or newer
- In some cases, containment software may have been loaded to the chassis with
special instructions provided to the driver.
- For chassis that have older MSW part numbers than listed above, including
chassis with containment previously loaded:
A. Reprogram the following modules in the order listed.
1. Engine Control Module ( EMS )
2. Aftertreatment Control Module ( ACM )
B. Reset the soot load, clear DTCs and run a regeneration if P24A4 or
P10FE were present before programming the vehicle.
- If the chassis returns for frequent recurrence of the code following the software
update, normal Guided Diagnostic procedures will need to be followed.
Solution visibility

Dealer distribution

Function(s)/component(s) affected
Function affected

DPF , 1 1 0 EMS , MID 128 – EMS , EECU , 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
information display

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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

ut0031h

Last modified by

RU4469V

Creation date

10-01-2017 17:01

Date of last update

12-02-2018 17:02

Review date

30-04-2017 00:04

Status

Published

Average score

0

Number of scores

1

NA_Reviewer

ut0031h

NA_Author_Group

GTT

NA_VOLVO_Vehicle_Range
NA_VOLVO_Vehicle_Ra
nge

VNX , VNL , VNM , VHD , VAH

Engine family
Engine family

11L Engine , 13L Engine , 16L Engine

Emission Standard
Emission Standard

US16 , US15