Resetting the Diesel Particulate Filter Ash Accumulators
This service routine synchronizes the ash volume between the Common Powertrain Controller (CPC) and the
Aftertreatment Control Module (ACM) and resets the Diesel Oxidation Catalyst (DOC)/Diesel Particulate Filter
(DPF) temperature accumulators.
When installing a cleaned or remanufactured filter, Go to step 1.
When installing a new filter due to failure, Go to step 1.
When replacing an ACM (DiagnosticLink® Professional only), Go to step 8.
To carry out a DPF ash accumulator synchronization:
1. Choose DPF Ash Accumulator from the actions menu to display the DPF Ash Accumulator dialog box.
1.a The tool will show which Aftertreatment System (ATS) (1-BOX™ or Two-Box) that is installed on the
unit and will automatically display the correct panel. This illustration shows the 1-BOX™ system.
1.b The following illustrates the Two-Box system.
2. Select the appropriate radio button option from “Why does the ash volume ratio need changing?”
2.a If you choose “cleaned or remanufactured filter installation” or “New filter installation due to failure,” Go
to step 3.
2.b If you choose “ACM replacement,” Go to step 8.
3. Enter the new or remanufactured DPF unit serial number(s) that is currently installed on the vehicle.
3.a If the aftertreatment system is a 1-BOX™ system, there are two DPF units.
3.b If the aftertreatment system is a Two-Box system, there is one DPF.
4. Press “Set Ash Volume.”
5. A confirmation dialog box will be displayed asking you to verify that the information provided is correct.
6. If the information is correct, press “Yes” to continue, otherwise press “No” to go back and make the
required changes.
7. Once the routine has been executed, a status message will be displayed in the progress box at the bottom
of the dialog box.
8. If you are replacing the ACM, the ash volume must be synchronized with the CPC. To synchronize a new
ACM with the CPC in the vehicle, select “ACM replacement” in the DPF Ash Accumulator dialog box.
9. Press “Set Ash Volume.”
10. A confirmation dialog box will be displayed asking you to verify that the information provided is correct.
11. If the information is correct, press “Yes” to continue, otherwise press “No” to go back and make the
required changes. Once the routine has completed, a status message will be displayed in the progress box
at the bottom of the dialog box.