Before calling a technician, you can perform these basic checks to potentially clear the code:
The supply module contains a small filter that can clog with crystallized urea or debris. New Holland 3297 Error Code
⚠️ Ignoring a 3297 code for too long can lead to a "Level 2 Derate," which may eventually result in a 5 mph speed limit or engine shutdown, depending on your specific New Holland model and software version. To help you get back to work faster, tell me: The model of your machine (e.g., T7.210, T6.180)? Any secondary codes appearing on the dash? Current weather conditions in your area? Before calling a technician, you can perform these
DEF freezes at 11°F (-12°C). If the tank heaters fail in cold weather, ice blocks the lines. Any secondary codes appearing on the dash
Error code 3297 translates to "DEF Pressure Low." It indicates that the SCR dosing module is not receiving the required fluid pressure to effectively spray DEF into the exhaust stream. When this happens, the tractor's engine control unit (ECU) may trigger a "derate" mode, significantly reducing engine power to prevent excessive emissions. Common Causes of the 3297 Code