Case IH 19903 – Engine Control Module (ECM / EDC): Fuel economy XCP bypass, Failure 2

Indicates a failure state (Failure 2) in the engine's software calibration bypass or the physical bypass valve circuit that manages diesel fuel efficiency parameters.

• Tier 4b
• Tier 4B (DEF/Urea) engines
• Case IH Puma series

1. 1

   Verify ECM harness connections

2. 2

   Check for CAN bus communication errors

3. 3

   Ensure the engine control software is up to date