03 08-19

1

03 08-19

SUBJECT

DATE

PTO Dosing

April 2019

Additions, Revisions, or Updates
Publication Number / Title
DDC-SVC-MAN-0190

Platform

Section Title

Change

PTO Dosing

Removed two sections of the Workshop manuals as these are
found elsewhere. Added new section "PTO Dosing."

DD Heavy
Duty

DDC-SVC-MAN-0194
DDC-SVC-MAN-0201

DD Medium
Duty

DDC-SVC-MAN-0198

DDC-SVC-MAN-0083

DD Heavy
Duty

EPA07 PTO Dosing
EPA10/GHG14 PTO
Dosing

All information subject to change without notice.

03 08-19

Copyright © 2019 DETROIT DIESEL CORPORATION

New section "PTO Dosing."

3

2 PTO Dosing

2

PTO Dosing

Description and Operation of PTO Dosing
PTO Dosing is a feature that enables Active Regeneration of the DPFs while in PTO mode. This can reduce the chance of
hydrocarbon buildup and DPF zone faults in vehicles that spend a large amount of time in PTO mode. Fast idle operation of
the engine to provide heat or cooling of the chassis typically does not generate sufficient load to support PTO dosing.
Requirements for PTO Dosing
Active Regeneration in PTO mode can initiate if the following conditions are met:
•
•
•
•
•

PTO Dosing is enabled in the ACM.
Minimum PTO engine speed of 1000 rpm using either the Cruise Control switches or a dedicated PTO switch.
Minimum engine load of approximately 20 to 25%.
Minimum sustained DOC Inlet Temperature of 280˚C (536˚F).
Ambient conditions such as extreme heat or cold will have an effect on exhaust temperatures and can affect regeneration
capabilities in this mode.

Enabling the PTO Dosing Feature
The application code is programmed at the time of new vehicle order. Vehicles already delivered may have the PTO Dosing
feature enabled using DiagnosticLink ® Professional 8.09 or higher.
The enabling parameter in the ACM is:
PGR005_DPF -> PTO DPF Dosing Enable; 1= Enabled or 0= Disabled
For new GHG17 vehicle orders, the dealer should order data book code 79V-001 to enable PTO Dosing as a factory installed
option.
Before making the parameter change, it is recommended that the repair shop review a log file and DDEC Reports of a normal
customer duty cycle to ensure PTO Dosing will fulfill the customer's needs. For more information Refer to section "Throttle
Control/Governors", scroll down to the PTO Dosing Feature section.
NOTE: Successful Active Regeneration while PTO Dosing is enabled will result in higher exhaust temperatures.
Make certain the exhaust outlets are directed away from structures, trees, vegetation, flammable materials, and
anything else that may be damaged or injured by prolonged exposure to high heat. This could be during any PTO
event, including driving PTO applications, as PTO Dosing runs off triggers and has no input from the driver under
normal operating conditions.

4

All information subject to change without notice.

Copyright © 2019 DETROIT DIESEL CORPORATION

03 08-19

03 08-19

3

EPA07 PTO Dosing

Description and Operation of PTO Dosing
PTO Dosing is a feature that enables Active Regeneration of the DPFs while in PTO mode. This can reduce the chance of
hydrocarbon buildup and DPF zone faults in vehicles that spend a large amount of time in PTO mode. Fast idle operation of
the engine to provide heat or cooling of the chassis typically does not generate sufficient load to support PTO dosing.
Requirements for PTO Dosing
Active Regeneration in PTO mode can initiate if the following conditions are met:
•
•
•
•
•

PTO Dosing is enabled in the MCM.
Minimum PTO engine speed of 1000 rpm using either the Cruise Control switches or a dedicated PTO switch.
Minimum engine load of approximately 20-25%.
Minimum sustained DOC Inlet Temperature of 280˚C (536˚F).
Ambient conditions such as extreme heat or cold will have an effect on exhaust temperatures and can affect regeneration
capabilities in this mode.

Enabling the PTO Dosing Feature
The application code is programmed at the time of new vehicle order. Vehicles already delivered may have the PTO Dosing
feature enabled using DiagnosticLink ® Professional 8.09 or higher.
The enabling parameter in the MCM is:
PGR007_DPF -> PTO DPF Dosing Enable; 1= Enabled or 0= Disabled
Before making the parameter change, it is recommended that the repair shop review a log file and DDEC Reports of a normal
customer duty cycle to ensure PTO Dosing will fulfill the customer's needs. For more information Refer to section "Throttle
Control / Governors", scroll down to the PTO Dosing Feature section.
NOTE: Successful Active Regeneration while PTO Dosing is enabled will result in higher exhaust temperatures.
Make certain the exhaust outlets are directed away from structures, trees, vegetation, flammable materials, and
anything else that may be damaged or injured by prolonged exposure to high heat. This could be during any PTO
event, including driving PTO applications, as PTO Dosing runs off triggers and has no input from the driver under
normal operating conditions.

All information subject to change without notice.

03 08-19

Copyright © 2019 DETROIT DIESEL CORPORATION

5

4 EPA10/GHG14 PTO Dosing

4

EPA10/GHG14 PTO Dosing

Description and Operation of PTO Dosing
PTO Dosing is a feature that enables Active Regeneration of the DPFs while in PTO mode. This can reduce the chance of
hydrocarbon buildup and DPF zone faults in vehicles that spend a large amount of time in PTO mode. Fast idle operation of
the engine to provide heat or cooling of the chassis typically does not generate sufficient load to support PTO dosing.
Requirements for PTO Dosing
Active Regeneration in PTO mode can initiate if the following conditions are met:
•
•
•
•
•

PTO Dosing is enabled in the ACM.
Minimum PTO engine speed of 1000 rpm using either the Cruise Control switches or a dedicated PTO switch.
Minimum engine load of approximately 20-25%.
Minimum sustained DOC Inlet Temperature of 280˚C (536˚F).
Ambient conditions such as extreme heat or cold will have an effect on exhaust temperatures and can affect regeneration
capabilities in this mode.

Enabling the PTO Dosing Feature
The application code is programmed at the time of new vehicle order. Vehicles already delivered may have the PTO Dosing
feature enabled using DiagnosticLink ® Professional 8.09 or higher.
The enabling parameter in the ACM is:
PGR005_DPF -> PTO DPF Dosing Enable; 1= Enabled or 0= Disabled
Before making the parameter change, it is recommended that the repair shop review a log file and DDEC Reports of a normal
customer duty cycle to ensure PTO Dosing will fulfill the customer's needs. For more information reference the appropriate
DDEC Electronic Controls A&I Manual; Refer to section "Throttle Control/Governors", or Refer to section "Throttle
Control/Governors" and scroll down to the PTO Dosing Feature section.
NOTE: Successful Active Regeneration while PTO Dosing is enabled will result in higher exhaust temperatures.
Make certain the exhaust outlets are directed away from structures, trees, vegetation, flammable materials, and
anything else that may be damaged or injured by prolonged exposure to high heat. This could be during any PTO
event, including driving PTO applications, as PTO Dosing runs off triggers and has no input from the driver under
normal operating conditions.

6

All information subject to change without notice.

Copyright © 2019 DETROIT DIESEL CORPORATION

03 08-19