SPN 609 FMI 14 is the Detroit DD Series diagnostic fault-code sheet (SPN 609 / FMI 14) that documents a Motor Control Module (MCM) that is incorrect or not programmed correctly. This 1-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.
SPN 609 FMI 14 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 609 / FMI 14 |
| Source | Detroit / DDC diagnostic troubleshooting reference |
| Year / Revision | © 2017 |
| Pages | 1 |
| File size | 0.21 MB |
| Format | |
| Language | English |
Document table of contents
- Fault code definition (SPN 609, FMI 14)
- MCM suitability check
- Parameter reset procedure
- Vehicle configuration verification
- MCM replacement decision
- Removal of the Motor Control Module reference
Fault definition and diagnosis
The technician first checks that the Motor Control Module is the correct part for the engine; if it is not, it is replaced and the parameters are set on the new MCM. If the MCM is correct, the parameters are reset and the sheet verifies that SPN 233/FMI 14 is no longer active, then checks that the MCM parameters match the vehicle configuration and resets them where required before considering replacement.
Applicable truck models
It applies to Detroit DD Series engines (EPA 2007 to current) and Series 60 (DDEC VI, EPA 2007) engines controlled by the Motor Control Module. For engine specifications and authorised service information, see the official Detroit engine website.
Who needs the SPN 609 FMI 14 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 609 / FMI 14 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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