John Deere engine codes provide valuable insights into the health and performance of your equipment. These codes, generated by the Engine Control Unit (ECU), pinpoint specific issues allowing for quicker diagnosis and repair. This guide delves into common John Deere engine codes, their meanings, and potential solutions.
Decoding John Deere Engine Codes
John Deere utilizes a standardized format for its engine codes. The codes typically begin with “ECU” followed by a five-digit number and a two-digit suffix separated by a period. For example, “ECU 000027.03” indicates an EGR sensor circuit fault.
Understanding these codes is crucial for effective troubleshooting. While a complete list of codes is extensive, this guide covers frequently encountered issues and their corresponding codes.
Common John Deere Engine Codes and Solutions
Engine System Codes:
- ECU 000027.03/04: EGR sensor circuit fault. This often limits engine power and disables active exhaust filter cleaning.
- ECU 000051.03/04: Air Throttle Valve Position sensor circuit fault. Similar to the EGR fault, this can limit power and disable cleaning.
- ECU 000094.17/18: Low fuel pressure. Check fuel supply and filters. Code 18 specifically indicates limited engine power.
- ECU 000097.16: Water Separator full. Drain the water separator to resolve this issue and restore power.
- ECU 000100.01/18: Low oil pressure. Check engine oil level immediately. Code 01 signifies extremely low pressure.
- ECU 000102.03/04/07: Intake Manifold Pressure sensor fault. This can limit power and disable exhaust filter cleaning. Inspect the sensor and its connections.
- ECU 000103.00: Turbocharger speed extremely high. Reduce engine speed and load to prevent damage.
- ECU 000105.00/03/04/15/16: Issues with Intake Manifold air temperature. This could indicate a high temperature (requiring reduced engine speed and a cooling system check), or a sensor fault.
- ECU 000107.00/15/16: Restricted engine air filter. Cleaning or replacing the air filter is the solution.
- ECU 000109.17/18/31: Low coolant pressure. Check the pressure cap and the cooling system for leaks.
- ECU 000110.00/15/16/17: Engine coolant temperature issues. High temperatures require reduced engine load and a cooling system inspection. Low temperatures may indicate a thermostat problem.
- ECU 000111.01/07/17/18: Coolant level problems. Add coolant if the level is low and inspect for leaks. Code 07 suggests a circuit fault in the level sensor.
Electrical System Codes:
- ECU 000168.01/18: Low battery voltage. Charge or replace the battery.
- ECU 003353.31: Alternator malfunction. Check the drive belt and alternator connections.
Exhaust Filter System Codes:
Many John Deere engine codes relate to the exhaust filter system. These codes often indicate the need for cleaning or service. Consult your operator’s manual for specific instructions on addressing these issues. Examples include:
- ECU 003719.13/14/16: Exhaust Filter restricted. This usually requires cleaning. The operator’s manual will guide you through the process.
- ECU 003720.15/16: High ash load in the Exhaust Filter. Service the filter according to the manufacturer’s recommendations.
Consulting John Deere Resources
This guide provides an overview of common John Deere Code John Deere. However, due to the complexity of modern engine systems, consulting official John Deere resources is crucial for accurate diagnosis and repair. Refer to your operator’s manual or contact a certified John Deere dealer for assistance with troubleshooting and resolving engine codes. They can provide expert guidance and ensure the proper functioning of your equipment. Always prioritize safety when working on machinery and follow recommended procedures.
