New Holland 3297 Error Code Verified Review

| | Details | |------------|--------------| | 1. Drain & Flush DEF Tank | Remove all contaminated fluid. Flush with distilled water (never tap water). Dry thoroughly. | | 2. Refill with Certified DEF | Use only ISO 22241-compliant DEF from sealed container. | | 3. Reset Code | Use EST to clear DTC 3297. Some systems require a "SCR System Reset" or "Quality Sensor Learn" procedure. | | 4. Road/Field Test | Run engine at working load for 30–60 minutes to allow sensor to re-evaluate. | | 5. Replace DEF Quality Sensor | If fault returns, replace the reductant quality sensor (often integrated with DEF tank module). | | 6. Update ECU Software | Install latest calibration from CNH to eliminate false triggers. |

Once you have cleared the , follow these best practices to prevent it from returning: New Holland 3297 Error Code