Solution K03179378
Tuesday, February 6, 2018 8:45:25 PM CET

Solution
Title (customer effect)

Service Only Regen Requested With No Warning. Diagnostic Trouble Codes ( DTC )
P24A4 / P10FE Active Or Inactive With Several Counts - OBD15 And OBD16
Conventional Chassis; Does Not Apply To US17 (Common Rail Fuel System) Chassis

Cause

OBD15 and OBD16 Conventional Chassis that spend most of the time in stop-and-go
operation may log DTCs P24A4 and P10FE, together or separately.

Solution

Overview
During city driving (P&D and LTL) duty cycles, the Diesel Particulate Filter
(DPF) can accumulate large amounts of soot inside. If the chassis is not driven on the
highway enough for passive regeneration to reduce soot levels, a stationary regeneration
will be required. The unit may also display “Service Only” regeneration on the Driver
Information Display ( DID ) with no prior alert to the driver, which can result in an
unplanned stop at a maintenance facility for a service regeneration can be performed.

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 (Commonly Year Model 2016) Chassis ONLY:
- Software improvements have been released to address this code. If P24A4 and
/or P10FE are present, software should be checked and updated as necessary.
- Two modules are affected by this update and should be reprogrammed in the
following order:
1. Engine Control Module ( EMS )
2. Aftertreatment Control Module ( ACM )
- If there are other codes and symtoms present or the code(s) return following

the software update, normal diagnostic procedures should be followed to
determine the issue.
For OBD16 Chassis:
- Basic triage should be performed to ensure there is not an existing issue
causing the codes to set. Including but not limited to:
• Any report of rapid soot buildup that may indicate a fuel or air issue
• Boost or exhaust leaks or restrictions
• Any issues with the EATS system
- If nothing is found from triage, an eService case should be opened with Dealer
Technical Support prior to performing detailed diagnosis.
- The eService Case must include:
• A complete DTC readout from the time of the chassis's arrival
• A thorough description of the conditions the truck usually operates in,
specific application, and any other pertinent information that will help
Tech Support.
- Further instructions will be issued once the eService case is reviewed.
Interna

P24A4 in OBD2015 and OBD2016 for city driving (short haul application) requires conversion kit and

l

software update.

comm

We need to maintain the VIN/Chassis number list of trucks with this software update to be provided to

ents

regulators (EPA/CARB) if needed.

(FO)
Critical -- Every customer who gets updated with the conversion kit must receive good communication on
what to expect with the conversion kit (attachment below). The driver/customer must be informed on what he
/she will expect to see from DID, and when/how to react.
If conversion kit is not yet available for specific platform, we need customer dealer to trigger proactive
regenerations (once or twice a week) until the time conversion kit is available.
•Only to be applied to trucks/fleets with P24A4 issue
•No fault found and short haul /city duty cycle
•Consequence of this containment “ frequent regeneration requests”.

•Requires support from Aftermarket Support Engineers.

If the conversion kit is performed, THIS DOCUMENT must be delivered to the servicing dealer and
explained to the customer.
Internal comments (BO)

If the conversion kit is performed, THIS DOCUMENT must be delivered to the
servicing dealer and explained to the customer.

Temporary solution

Temporary solution , Technical document being drafted

Solution visibility

Dealer distribution

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

exhaust , DPF

Function Group
Function Group

254 catalytic converter; exhaust emission control equipment , 258 emissions aftertreatment , 284 control system, fuel supply

Customer effect
Main customer effect

soot , regeneration , fault code/display

Administration
Author

ut0031h

Last modified by

RU4469V

Creation date

01-08-2016 20:08

Date of last update

10-01-2018 16:01

Status

Published

Average score

5

Number of scores

1

NA_Reviewer

a175606

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

US16 , US15