SPN 1569 FMI 31 is a diagnostic trouble code for engine protection torque derate.
Troubleshoot:
DEF sensors, update ECM
Common FMI codes associated with SPN 1569 include:
- FMI 31: Engine derate condition – The engine control module (ECM) has detected a problem with the DPF and has limited the engine power to protect the system from further damage.
- FMI 20: Data erratic or intermittent – The ECM is receiving inconsistent information from the DPF system, which may be caused by a faulty sensor, wiring issue, or other problems.
more codes:
- SPN 4334 FMI [2-18]
- SPN 3264 FMI [0-16]
- SPN 3226 FMI [2-20]
- SPN 729 MFI [3,4,5]
- SPN 639 FMI [2-19]
- SPN 111 [FMI 1 – 18]
- SPN 103 FMI [2,15,16,18]
- SPN 91 FMI [2-19]
- SPN 84 FMI [2,9,10,19]
- SPN 101 FMI [0 – 16]
- SPN 3058 FMI[10,16,18]
- SPN 641 FMI [7 – 31]
- SPN 1761 FMI[1 – 18]
- SPN 190 FMI [0, 2, 16]
- SPN 3216 FMI 20
- SPN 5246 FMI 0
