The Detroit engine hours fault fault-code sheet is a Detroit DD Series (EPA 2007-Current) troubleshooting document for stored engine-hours data that reads lower than expected. 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 engine hours fault 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 1
- Note: shared CPC and MCM SPNs
- Cause: reprogramming clock mismatch
- Corrective action: clear fault codes
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 1 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 information note describes the MCM engine-hours value reading lower than expected. It explains that the Common Powertrain Controller digital outputs share SPNs with some Motor Control Module faults, that DDDL 7.X distinguishes the MCM from the CPC, and that the fault usually follows CPC or MCM reprogramming when the internal clocks do not match. Clearing all fault codes after reprogramming realigns the values and clears the diesel diagnostic tool reading.
Who needs this Detroit engine hours fault manual
This troubleshooting sheet suits Detroit-certified technicians and independent heavy-duty workshops that read SPN 247/FMI 1 on a scan tool and want the factory decision tree, pin references and component checks before replacing parts.
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