John Deere fault codes & repair guides
All 3,995 codes· 50 per page · page 1 of 80
| Code | Controller | Issue summary | Repair manual |
|---|---|---|---|
| 00 | — | Folding Auger Position Calibration Voltage Out of Range High | Full repair manual for code 00 |
| 01 | — | Header Calibration - Right Height Sensor 2 Voltage Too Low | Full repair manual for code 01 |
| 01 | — | Folding Auger Position Calibration Voltage Too Low | Full repair manual for code 01 |
| 02 | — | Chassis Ground Not Connected to Ground | Full repair manual for code 02 |
| 03 | — | Precleaner 2 Position Mismatch | Full repair manual for code 03 |
| 03 | — | Folding Auger Position (cc# 835) Too High - Greater Than 4.50 VDC | Full repair manual for code 03 |
| 03 | — | Grain tank light (cc# 526) is ON when commanded OFF by left power module 1 | Full repair manual for code 03 |
| 03 | — | Side Finder Electrical System Fault | Full repair manual for code 03 |
| 03 | — | Reel Fore/Aft Diverter Activated When Commanded Off | Full repair manual for code 03 |
| 03 | — | Chaffer 1 Open and/or Close Status Conflicts with Control Unit Command | Full repair manual for code 03 |
| 03 | — | Conveyor Auger Speed Sensor Voltage Out of Range High | Full repair manual for code 03 |
| 03 | — | Beater Speed Sensor Signal Issue | Full repair manual for code 03 |
| 03 | — | Unloading Auger Light Activated When Commanded Off | Full repair manual for code 03 |
| 03 | — | Feed Accelerator Speed Sensor Diagnostics | Full repair manual for code 03 |
| 03 | — | Left rear discharge light is ON when commanded OFF by control unit LC2 | Full repair manual for code 03 |
| 03 | — | Four Wheel Drive Engage Solenoid Activated When Not Commanded | Full repair manual for code 03 |
| 03 | — | Unload solenoid (cc# 458) is ON when commanded OFF | Full repair manual for code 03 |
| 3 | — | Throttle - selected | Full repair manual for code 3 |
| 3 | — | RCU 8 VDC Sensor Supply Out of Range | Full repair manual for code 3 |
| 04 | — | Chopper Speed Sensor Signal Issue | Full repair manual for code 04 |
| 04 | — | RCU 5 VDC Sensor Supply Out of Range | Full repair manual for code 04 |
| 04 | — | Conveyor Auger Speed Sensor Voltage Out of Range Low | Full repair manual for code 04 |
| 04 | — | Folding Auger Position (cc# 835) Voltage Too Low | Full repair manual for code 04 |
| 05 | — | LC2 power 1 at connector X339 is less than 4.0 VDC | Full repair manual for code 05 |
| 05 | — | Left two speed four wheel drive solenoid (cc# 204) is open circuit | Full repair manual for code 05 |
| 05 | — | Left Rear Marker Lights Output Open Circuit | Full repair manual for code 05 |
| 05 | — | Chopper Vane Angle Sensor Circuit Open | Full repair manual for code 05 |
| 05 | — | Precleaner 1 Open or Close Circuit Fault | Full repair manual for code 05 |
| 05 | — | Side Finder Electrical System Fault | Full repair manual for code 05 |
| 06 | — | RCU 12 VDC Switched Power Not Activating | Full repair manual for code 06 |
| 06 | — | Four Wheel Drive Engage Solenoid Not Activating | Full repair manual for code 06 |
| 06 | — | Chassis tilt left solenoid not responding to control unit command | Full repair manual for code 06 |
| 06 | — | Precleaner 1 Close is OFF when commanded ON by control unit LC2 | Full repair manual for code 06 |
| 06 | — | Reel Reverse Solenoid Not Activating | Full repair manual for code 06 |
| 06 | — | Side Finder Electrical System Fault | Full repair manual for code 06 |
| 06 | — | Unload solenoid (cc# 458) is OFF when commanded ON by control unit LC1 | Full repair manual for code 06 |
| 06 | — | Chopper vane angle left (cc# 334) is OFF when commanded ON by left power module 2 | Full repair manual for code 06 |
| 06 | — | Left Rear Marker Lights Output is OFF When Commanded ON | Full repair manual for code 06 |
| 06 | — | Sieve 2 Not Activating as Commanded | Full repair manual for code 06 |
| 06 | — | Chaffer 1 Close Status Mismatch | Full repair manual for code 06 |
| 06 | — | Reel Fore/Aft Diverter Not Responding to Command | Full repair manual for code 06 |
| 06 | — | Left Rear Discharge Light Not Activating as Commanded | Full repair manual for code 06 |
| 06 | — | Precleaner 1 Open Status Does Not Match Command | Full repair manual for code 06 |
| 06 | — | RCU PTC power out of range - less than 4.0 VDC | Full repair manual for code 06 |
| 6 | — | Alternator Field Not Activated as Commanded | Full repair manual for code 6 |
| 11 | — | Precleaner Open Switch Voltage Exceeds 4 VDC for Over 30 Seconds | Full repair manual for code 11 |
| 11 | — | Right sieve actuator failed calibration with pulses present on sieve 2 position | Full repair manual for code 11 |
| 11 | — | Left Chaffer Actuator Failed Calibration | Full repair manual for code 11 |
| 11 | — | LPC2 power 4 (cc#262) is less than 4.5 VDC at the left power module 1 input | Full repair manual for code 11 |
| 12 | — | Faulty Driver for Reel Reverse Solenoid | Full repair manual for code 12 |
