SPN 520296 FMI 19 is the Detroit fault code for EGR Valve Actuator, Internal Test Running, and this 2-page PDF sets out the code description and the step-by-step troubleshooting. This code is logged while the EGR valve actuator internal self test is running at start-up. The routine checks the low-voltage code SPN 168/FMI 1, the charging and starting systems, exhaust leaks, the pull rod ball sockets and butterfly travel.
Official document details
| Brand | Detroit |
| Model coverage | DD Series (EPA 2007-current); also Series 60 (DDEC VI) |
| System / Group | Diagnostic Trouble Codes (DTCs) |
| Fault code | SPN 520296, FMI 19 |
| Year / Revision | Copyright 2017 (TruckFaultCodes.com) |
| Pages | 2 |
| File size | 0.2 MB |
| Format | |
| Language | English |
Document table of contents
- Fault code identification (SPN and FMI)
- Description and monitored parameter
- Dash lamps and engine reaction
- Check for multiple codes
- Exhaust leak and coolant line inspection
- EGR valve actuator pull rod and butterfly checks
- Verify repairs and SRA3 status
Applicable models for SPN 520296 FMI 19
This diagnostic trouble code applies to Detroit DD13, DD15 and DD16 engines built to EPA 2007 and later standards, with distinct Exhaust Gas Recirculation (EGR) valve and actuator removal references for the DD13 versus the DD15 and DD16. The same code also appears in the Series 60 (DDEC VI) set. For OEM service literature and dealer support, see the official Detroit Diesel website.
Who needs this SPN 520296 FMI 19 guide
Diesel technicians working an EGR fault, a 25% derate or an incomplete actuator learn on a Detroit engine use this guide to rule out exhaust leaks, coolant line restrictions and actuator wear before replacing the valve or actuator. This library page summarises the official Detroit fault-code sheet published on TruckFaultCodes.com (Copyright 2017) and is meant as a quick reference. The source document lists exact resistance or pressure ranges, connector pin numbers and torque values in charts, so always confirm those specifications against current Detroit Power Service Literature and the diesel diagnostic tool before condemning a part. Recording your measured values as you work through each step also makes it easier to escalate the case to the Detroit Customer Support Center at 800-445-1980 if the fault stays active. The complete PDF is available in the DiagTechPro manuals library, where a free account is required to download.
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