Case IH 3585 – Engine Control Unit (ECU): Engine shut off (after idling phase)

Severe Selective Catalytic Reduction (SCR) inducement code forcing the engine to shut down after a mandatory idling period to protect the engine and prevent emissions non-compliance. Triggered because the DEF tank is completely empty or there is a critical, unresolved fault in the emissions system.

• Steiger / Quadtrac (350-600 series)
• Magnum
• Maxxum
• Puma
• Optum
• Axial-Flow (AFX) series

1. 1

   Physically inspect the DEF tank level (do not rely solely on the cab gauge, as the level sender may be stuck or faulty)

2. 2

   Scan for primary active SCR/DEF fault codes (e.g., 19415, 3593, 3581) using the AFS Pro display or Electronic Service Tool (EST)

3. 3

   Inspect the DEF tank, supply/backflow lines, and dosing valve for physical damage, leaks, or white urea crystallization/blockages

4. 4

   Verify the operation and voltage of the DEF level and temperature sensors using the EST

1. 1

   Refill the DEF Tank

   If the tank is empty, refill it completely with fresh, high-quality Diesel Exhaust Fluid (DEF).

2. 2

   Address Primary Failures

   If the tank was already full, diagnose and repair the root cause indicated by the primary active SCR codes (e.g., replace a faulty DEF dosing valve, unclog a blocked backflow line, or drain and replace contaminated DEF).

3. 3

   Clear the Codes

   Connect the Electronic Service Tool (EST) and clear the inactive fault codes from the ECU.

4. 4

   Perform System Validation

   Start the engine and bring it up to normal operating temperature.

5. 5

   Run Under Load

   Run the engine under load or perform a forced SCR system test via the EST.