FPT-SPN3361-FMI5 serious FPT Cursor (Case IH / New Holland)

FPT Cursor DEF Doser Injector Open Circuit

The FPT-SPN3361-FMI5 (FPT Cursor (Case IH / New Holland)) diesel fault code means: FPT Cursor DEF Doser Injector Open Circuit. This is a serious severity code.

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Keep driving?
Yes, with caution
DIY difficulty
intermediate
Estimated cost
$500-$1,100 doser
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Common Symptoms

  • SCR conversion low
  • Inducement starting

Probable Causes (Ranked by Likelihood)

  • DEF doser seized / crystallized Very Likely
  • Broken doser wiring Likely

Frequently Asked Questions

What is Case IH / New Holland SPN 3361 FMI 5?

On FPT Cursor engines, SPN 3361 FMI 5 means: FPT Cursor DEF Doser Injector Open Circuit. Serious code -- address promptly to avoid inducement / further damage.

Can I keep operating with SPN 3361 FMI 5?

Serious fault -- you can move the machine to a shop but don't run it under load. Diagnose with Case IH EST / New Holland Electronic Service Tool.

How much does SPN 3361 FMI 5 cost to fix?

Repair cost range: $500-$1,100 doser.

Mechanics Guide Step-by-step diagnosis

Step-by-Step Diagnostic Procedure

  1. Command doser test in EST; replace if no activation.

Sources 1

This page is built from documented references. Verify against your own service info before repair work.

  • SAE J1939-73Application Layer: Diagnostics (defines the SPN/FMI fault-identifier framework)

SPN3361-FMI5 on Other Platforms

The same code ID appears across other engines, vehicles, and equipment. Diagnostic flow varies by platform — see the matching breakdown:

Volvo / Mack serious DEF Dosing Valve Circuit Open (J1939)

Commonly Affected Vehicles

  • Case IH Magnum 250-400 Series tractors
  • Case IH Steiger 370-620 articulated tractors
  • Case IH Axial-Flow 7250 / 8250 / 9250 combines
  • New Holland T8 / T9 Series tractors
  • New Holland CR Series combines (CR8.90, CR9.90, CR10.90)

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