Detroit SPN 615 EPA07 is the Detroit DD Series diagnostic fault-code sheet (SPN 625 / FMI 9) that documents erratic data, or a failed Controller Area Network (CAN) proprietary data link between the Motor Control Module (MCM) and the Common Powertrain Controller (CPC). This 2-page PDF, drawn from the Detroit / Detroit Diesel Corporation (DDC) troubleshooting reference (© 2017), gives the workshop the exact measured checks needed to confirm and repair the fault rather than guess at it.
Detroit SPN 615 EPA07 document details
| Brand | Detroit (Detroit Diesel Corporation) |
| Model coverage | DD Series (EPA 2007-Current); Series 60 (DDEC VI, EPA 2007) |
| System / Group | Diagnostic Trouble Codes (DTCs) – SPN 625 / FMI 9 |
| Source | Detroit / DDC diagnostic troubleshooting reference |
| Year / Revision | © 2017 |
| Pages | 2 |
| File size | 0.22 MB |
| Format | |
| Language | English |
Document table of contents
- Fault code definition
- Diagnostic note
- Troubleshooting steps
- MCM and CPC connector inspection
- CAN line corrosion and water-ingress checks
- Repair guidance
Fault definition and diagnosis
The document notes that the MCM and CPC communicate on the same CAN line, so water penetrating any ECU connector can short the line and stop other ECUs from communicating. After confirming whether the MCM or CPC was recently changed or reprogrammed and that the correct calibration and parameter list are installed, the technician visually inspects the 21-way connector cavities on the MCM and the CPC ST4 connector for signs of corrosion and repairs the affected wiring.
Applicable truck models
This EPA07 sheet applies to Detroit DD Series engines (EPA 2007 to current) and Series 60 (DDEC VI, EPA 2007) engines sharing the MCM and CPC CAN network. For engine specifications and authorised service information, see the official Detroit engine website.
Who needs the Detroit SPN 615 EPA07 manual
Diesel technicians and workshop owners diagnosing this Detroit DTC with DiagnosticLink or ServiceLink use it to follow the manufacturer sequence step by step, and to confirm the SPN 625 / FMI 9 repair before returning the truck to service.
The full PDF is available in the DiagTechPro manuals library; a free account is required to download it.
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