2659 FMI 0 DTCs is the Detroit DD-Series diagnostic fault code document for the EGR flow target error, high flow event, published on TruckFaultCodes.com (copyright 2017) and archived as a 2-page PDF in the DiagTechPro library. The document identifies an EGR mass-flow monitor that reports desired exhaust gas recirculation flow above the calibrated target, illuminating the MIL and CEL lamps and forcing a 25% engine derate.
2659 FMI 0 DTCs document details
| Brand | Detroit |
| Model coverage | Detroit DD-Series (DD13, DD15 and DD16), EPA 2007 and later |
| System / group | DD Series (EPA 2007-Current) / DTCs |
| Fault code (SPN) | 2659 |
| Failure mode (FMI) | 0 |
| Emissions calibration | EPA10 / GHG14 |
| Source | TruckFaultCodes.com (copyright 2017) |
| Pages | 2 |
| File size | 0.23 MB |
| Format | |
| Language | English |
The page records the official identifiers so a technician can confirm the exact code and calibration against the diesel diagnostic tool before starting any repair.
Document table of contents
- Fault code identification (SPN 2659 / FMI 0)
- Description and monitored parameter (EGR mass flow)
- Typical enabling conditions and verification
- Dash lamps and engine reaction (MIL, CEL, derate 25%)
- Troubleshooting Steps 1 through 9
- Delta P sensor removal reference
The nine-step procedure begins with the ignition on and reads EGR delta P voltage on pin 109, which should sit between 0.55 and 0.83 volts. If the reading is out of range the technician removes the delta P sensor from its mounting pad, then checks the harness connector for loose, bent, spread or corroded pins. Later steps inspect the EGR delivery pipe pressure ports for blockage and examine the EGR valve for a broken butterfly, with DD13, DD15 and DD16 removal references in Power Service Literature and a Detroit Customer Support Center contact for unresolved cases.
Applicable truck models
This document applies to Detroit DD-Series diesel engines in the EPA 2007-and-later range, typically the DD13, DD15 and DD16 as covered by the EPA10 / GHG14 calibration shown on the file. Confirm the engine calibration and connector layout for your chassis on the official Detroit engine site before ordering parts.
Who needs this 2659 FMI 0 DTCs manual
Diesel technicians and workshop owners who need a factual, step-by-step reference for the high-flow EGR event on late Detroit DD-Series engines will use this page to plan sensor testing before replacing parts.
The complete 2-page PDF is available in the DiagTechPro manuals library, where a free account is required to download it.
Related manuals library
