SPN 511403 FMI 8 is the Detroit Diesel fault-code service sheet that documents a missing J1939 TC1 (transmission mode) message on the J1939 network. It covers the battery-voltage, CAN-line and reprogramming checks common to Detroit J1939 message faults. This DiagTechPro library page summarizes what the 2-page PDF contains so a technician can confirm it is the right document before downloading.
Official document details
| Brand | Detroit (Detroit Diesel) |
|---|---|
| Model coverage | DD Series (EPA 2007-Current); Series 60 DDEC VI (EPA 2007) |
| System / group | GHG14 diagnostic trouble codes |
| Suspect Parameter Number | 511403 |
| Failure Mode Identifier | 8 |
| Source | TruckFaultCodes.com, © 2017 |
| Pages | 2 |
| File size | 0.2 MB |
| Format | |
| Language | English |
Document table of contents
- Step 1: connect the diesel diagnostic tool
- Step 2.1: check CPC4 SPN 168 battery-voltage faults
- Step 2.2: check SPN 625 CAN line faults
- Step 3: confirm CPC4 parameter configuration
- Steps 4-6: power-down and re-check sequence
SPN 511403 FMI 8 diagnostic summary
The sheet has the technician connect the diesel diagnostic tool and first check for multiple codes: any Common Powertrain Controller (CPC4) SPN 168/FMI battery-voltage faults are corrected first, as are any Controller Area Network (CAN) line faults under SPN 625. If only the J1939 error is present and the CPC4 was recently reprogrammed, the parameters must be confirmed against the Application and Installation Manual, after which Original Equipment Manufacturer (OEM) J1939 material is consulted. Otherwise the modules are powered down for five minutes and re-checked.
Applicable Detroit truck models
This fault-code sheet applies to Detroit DD Series engines certified to EPA 2007 and later emissions standards, and it is cross-listed under the Detroit Series 60 (DDEC VI, EPA 2007) diagnostic set. For full engine specifications and support details, see the official Detroit website.
Who needs this SPN 511403 FMI 8 manual
Detroit technicians and body-builders diagnosing a datalink message loss use this sheet to separate a charging-system or CAN wiring fault from an OEM parameter-configuration issue.
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