This is a hands-on DIY repair video showing an owner diagnosing and fixing a John Deere 4320 error code 01, caused by a failing pedal sensor. It walks through unbolting the sensor housing, identifying corrosion behind the connector, swapping in new sensors with dielectric grease, and reassembling everything. It ends with a week-later follow-up confirming the fix held through actual plowing use. Useful for 4320 owners troubleshooting this exact error.
Posted by an owner-operator (Life of a Camp Ranger) documenting real repairs on their own tractor, not a dealer or professional mechanic.
