The Detroit ACM ash volume fault-code sheet is a Detroit DD Series (EPA 2007-Current) troubleshooting document for an aftertreatment control module ash-mileage value that reads lower than the CPC stored value. It reproduces the official fault identification, the monitored parameters or service notes printed on the document, and the recommended diagnostic actions a heavy-duty technician follows step by step.
Detroit ACM ash volume document details
| Brand | Detroit |
| Model coverage | Detroit DD Series engines (DD13, DD15 and DD16) from EPA 2007-Current, with equivalent coverage noted for Series 60 (DDEC VI) applications. |
| System / Group | DD Series (EPA 2007-Current) / DTCs |
| Publication no. | Not printed on document; sourced from Detroit Power Service Literature |
| Year / Revision | © 2017 |
| Pages | 1 |
| File size | 0.2 MB |
| Format | |
| Language | English |
Document table of contents
- Fault code identification — SPN 247 / FMI 14
- DPF Ash Accumulator routine
- ACM replacement and set-ash-volume option
- Verification and fault clearing
Applicable truck models
Detroit DD Series engines (DD13, DD15 and DD16) from EPA 2007-Current, with equivalent coverage noted for Series 60 (DDEC VI) applications. Fault code SPN 247 / FMI 14 is diagnosed with a diesel diagnostic tool such as DDDL or DDRS. For factory procedures and the latest module software, see the Detroit Diesel official website.
Diagnostic steps and checks
This single-page routine resets the Aftertreatment Control Module ash value. The technician connects the diesel diagnostic tool, keys on with the engine off, selects the DPF Ash Accumulator from the actions drop-down menu, chooses the ACM Replacement option and the Set Ash Volume button, then confirms the ACM value has moved to within 5% of the CPC volume within five to ten seconds and that the 247/14 fault is no longer active before clearing all faults and releasing the vehicle.
Who needs this Detroit ACM ash volume manual
This troubleshooting sheet suits Detroit-certified technicians and independent heavy-duty workshops that read SPN 247/FMI 14 on a scan tool and want the factory decision tree, pin references and component checks before replacing parts.
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