Detroit fault code SPN 2900 FMI 9 is the TruckFaultCodes.com diagnostic sheet for the J1939 ETC7 Message Is Missing condition on Detroit DD-series engines. This 1 page reference lists the fault identification, monitored conditions where shown, and the step-by-step troubleshooting the technician follows in the shop.
Official document details
| Brand | Detroit |
|---|---|
| Model coverage | Detroit DD Series (EPA 2007-Current) |
| System / Group | DD Series (EPA 2007-Current) / DTCs |
| Publication no. | Not printed; TruckFaultCodes.com reference |
| Year / Revision | 2017 |
| Pages | 1 |
| File size | 0.2 MB |
| Format | |
| Language | English |
Document table of contents
- Fault code identification (SPN 2900 / FMI 9)
- Note on transmission reprogramming
- Checking for related powertrain codes
- CPC configuration and ServiceLink check
SPN 2900 FMI 9 troubleshooting steps
A note explains this fault will set during Eaton transmission module reprogramming and can be cleared and the vehicle released if it occurs while programming. Otherwise the routine checks for related codes: Common Powertrain Controller (CPC) battery-voltage faults on SPN 168 are troubleshot first, and a Motor Control Module (MCM) SPN 625/FMI 9 points to a Controller Area Network (CAN) line repair. If the CPC was recently reprogrammed its configuration is verified; otherwise ServiceLink is connected to check module communication status.
Applicable truck models
This sheet applies to Detroit DD-series diesel engines (the DD13, DD15 and DD16 family) built under the EPA 2007-Current emissions platform. Engine and emissions specifications should always be confirmed against the vehicle build; full engine information is published on the Detroit Diesel official site.
Who needs this SPN 2900 FMI 9 manual
Technicians who see the ETC7 transmission message drop off the J1939 bus use this sheet to rule out a reprogramming event before chasing a CAN fault. It is a quick bench reference rather than a full workshop manual, so the named removal steps still route back to Power Service Literature and, where escalation is needed, to the Detroit Customer Support Center.
The full PDF is available in the DiagTechPro manuals library; a free account is required to download it.
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