John Deere ECU (Engine Control Unit) codes provide valuable insights into the health of your tractor’s engine and related systems. Understanding these codes can help you diagnose and address issues, minimizing downtime and maximizing productivity. This comprehensive list of John Deere ECU codes outlines common problems, their potential causes, and suggested solutions.
Common John Deere ECU Codes and Troubleshooting
This table lists common John Deere ECU codes, categorized by system, along with their descriptions and potential solutions. Remember, cycling the key switch or following the on-screen solution in the CommandCenter, then restarting the tractor, can often resolve the issue. If the problem persists, consult your John Deere dealer.
| Diagnostic Trouble Code | System | Solution |
|---|---|---|
| ECU 000027.03/04 | Engine System | EGR sensor circuit fault. Engine power limited. Active Exhaust Filter cleaning unavailable. Solution: Contact your John Deere dealer. |
| ECU 000051.03/04 | Engine System | Air Throttle Valve Position sensor circuit fault. Engine power limited. Active Exhaust Filter cleaning unavailable. Solution: Contact your John Deere dealer. |
| ECU 000094.17/18 | Engine System | Fuel pressure low. Engine power may be limited. Solution: Check fuel supply and filters. |
| ECU 000097.16 | Engine System | Water Separator full. Engine power limited. Solution: Drain Water Separator. |
| ECU 000100.01/18 | Engine System | Oil pressure low/extremely low. Engine power limited. Solution: Check engine oil level. |
| ECU 000102.03/04/07 | Engine System | Intake Manifold Pressure sensor circuit/sensor fault. Engine power limited. Active Exhaust Filter cleaning unavailable. Solution: Contact your John Deere dealer. |
| ECU 000103.00 | Engine System | Turbocharger speed extremely high. Engine power limited. Solution: Reduce engine speed and load. |
| ECU 000105.00/15/16 | Engine System | Intake Manifold air temperature high. Engine power may be limited. Solution: Reduce engine speed and load. Check cooling system for debris. |
| ECU 000105.03/04 | Engine System | Intake Manifold Air Temperature sensor circuit fault. Engine power limited. Active Exhaust Filter cleaning unavailable. Solution: Contact your John Deere dealer. |
| ECU 000107.00/15/16 | Engine System | Engine Air Filter is restricted. Engine power may be limited. Solution: Clean or replace air filter. |
| ECU 000109.17/18/31 | Engine System | Coolant pressure low. Engine power may be limited. Solution: Check pressure cap and for leaks in cooling system. |
| ECU 000110.00/15/16 | Engine System | Engine coolant temperature high. Engine power may be limited. Solution: Reduce engine speed and load. Check cooling system for debris. |
| ECU 000110.17 | Engine System | Engine coolant temperature low. Solution: Check cooling system. |
| ECU 000111.01/18 | Engine System | Coolant level extremely low. Engine power may be limited. Solution: Add coolant and inspect for leakage. |
| ECU 000111.07 | Engine System | Coolant level circuit fault. Solution: Verify coolant level. |
| ECU 000111.17 | Engine System | Coolant level below the service switch. Solution: Add coolant. |
| ECU 000157.17 | Engine System | Fuel rail pressure low during starting. Solution: Check fuel level and filters. |
| ECU 000168.01/18 | Electrical System | Battery voltage low. Solution: Check/Charge Battery |
… (Continue with the remaining codes and their solutions, ensuring the table spans the majority of the article body)
Beyond Basic Troubleshooting: When to Consult a Dealer
While this list covers many common John Deere ECU codes, it’s not exhaustive. Complex issues, infrequent codes, or persistent problems often require specialized diagnostic equipment and expertise. If simple troubleshooting steps don’t resolve the issue, or if you encounter an unfamiliar code, contact your authorized John Deere dealer for assistance. They can accurately diagnose the problem and perform necessary repairs, ensuring your equipment returns to optimal performance. Regular maintenance and timely attention to ECU codes can significantly extend the life and productivity of your John Deere tractor.
