Case IH 3758 – Engine Controller (EDC / ECU): EDC - Level 2 Monitoring: Diagnosis fault check to report the error to demand for an ICO due to an error in the PoI3 efficiency factor.

An internal software/plausibility error within the engine's control module regarding the 'PoI3' (Post Injection 3) efficiency factor. Because of this internal fault, the system demands an ICO (Injection Cut-Off or Idle Control Override) to protect the engine.

• Farmall
• Steiger T4B
• Skid Steer Loaders (SSL)
• Compact Track Loaders (CTL)
• SR175

1. 1

   Connect the CNH Electronic Service Tool (EST) to the machine's diagnostic port

2. 2

   Verify the presence of code 3758 (often accompanied by an Amber warning light)

3. 3

   Check if the engine controller is communicating properly and if any dataset updates or flashes are available for the specific machine

1. 1

   Reload the Engine Dataset

   Using the CNH Electronic Service Tool (EST), re-flash or reload the engine dataset to the Engine Controller.

2. 2

   Clear and Retest

   Clear the fault codes and cycle the key to see if the Level 2 Monitoring fault returns.

3. 3

   Replace the Controller

   If the fault persists after the dataset has been successfully reloaded, the Engine Controller (EDC) has suffered an internal hardware/memory failure and must be replaced.

4. 4

   Restore Parameters

   If the EDC is replaced, you must follow the appropriate service tool procedure in the EST to restore the engine's Self-Learning Parameters.