International (Navistar)
J1939 SPN/FMI
SPN 593 / FMI 31
International Fault Code SPN 593 FMI 31: Engine Stopped by IST
SPN 593 FMI 31 on International / Navistar trucks means: Engine Stopped by IST. The failure mode (FMI 31) is “condition exists”.
Code details
- Manufacturer
- International (Navistar)
- Applies to
- International MaxxForce DT (2010–2019)
- Fault code
- SPN 593 FMI 31
- J1939 SPN
- 593
- FMI
- 31 — Condition exists
- Truck models in source
- 3200, 4100, 4300, 4400, 7300, 7400, 7500, 7600, 7700, 8500, 8600, BE 200, CE Bus, CXT, DuraStar, LoneStar, MXT, ProStar, RXT, TranStar, WorkStar
What to do next
- Read active and inactive codes with the OEM service tool (Diamond Logic Builder can clear previously active codes) and note the occurrence count.
- FMI 31 tells the shop the type of failure to test for: condition exists.
- Have a heavy-duty diesel technician confirm the fault against the engine or chassis service manual before replacing parts.
Get this code diagnosed
Send one request and nearby diesel shops and mobile mechanics can quote the repair.
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Related fault codes
Source: International MaxxForce DT 2010–2019 fault code list (Diesel Laptops). See also OBD-II codes.