Case IH 19477 – Engine Control Unit (ECU): No load error at the Low Side of Exhaust flap powerstage

The Engine Control Unit (ECU) is attempting to command the exhaust flap actuator, but it is not detecting the expected electrical resistance (load) on the ground (low) side of the circuit, indicating an open circuit or short circuit to positive for Exhaust flap valve 2 (N322).

• Tier 4b

1. 1

   Verify the diagnostic scanner being used; this code is likely a generic scanner misinterpreting a proprietary Case IH/FPT code as a VAG (VW/Audi) code.

2. 2

   Check for a broken wire, disconnected plug, or internally failed actuator motor on the Exhaust flap valve 2 (N322) circuit.