John Deere fault codes & repair guides
All 3,995 codes· 50 per page · page 72 of 80
| Code | Controller | Issue summary | Repair manual |
|---|---|---|---|
| 523933.31 | PTQ | Limp Home Mode Activated | Full repair manual for code 523933.31, PTQ |
| 523936.06 | — | Flow Control Valve Issue | Full repair manual for code 523936.06 |
| 523936.06 | — | Flow Control Valve Solenoid Current Problem | Full repair manual for code 523936.06 |
| 523939.06 | — | Flow Control Solenoid Valve Issue | Full repair manual for code 523939.06 |
| SCU523939.06 | SCU | Flow Control Solenoid Circuit Current Problem | Full repair manual for code SCU523939.06, SCU |
| SCO523942.31 | SCO | Operator Out of Place with SCV VI Enabled | Full repair manual for code SCO523942.31, SCO |
| SCO523943.31 | SCO | Operator Out of Seat with SCV V on | Full repair manual for code SCO523943.31, SCO |
| SCU523944.31 | SCU | Operator Out of Seat with SCV IV on | Full repair manual for code SCU523944.31, SCU |
| SCU523945.31 | SCU | Operator Out of Seat with SCV III on | Full repair manual for code SCU523945.31, SCU |
| SCU523946.31 | SCU | Operator Out of Seat with SCV II on | Full repair manual for code SCU523946.31, SCU |
| SCU523947.31 | SCU | Operator Out of Seat with SCV I on | Full repair manual for code SCU523947.31, SCU |
| 523948.03 | CSC | High Voltage At Cab Suspension Lower Solenoid Rear Chassis | Full repair manual for code 523948.03, CSC |
| 523948.03 | SFA (Front Chassis Module / Suspended Front Axle Control Unit) or CSC (Rear Chassis / Cab Suspension Controller) | SFA Down Solenoid High Voltage | Full repair manual for code 523948.03, SFA (Front Chassis Module / Suspended Front Axle Control Unit) or CSC (Rear Chassis / Cab Suspension Controller) |
| 523948.05 | CSC (Cab Suspension Controller) / Rear Chassis Control Unit | Low Amp Draw At Cab Suspension Lower Solenoid Rear Chassis | Full repair manual for code 523948.05, CSC (Cab Suspension Controller) / Rear Chassis Control Unit |
| 523948.05 | SFA (Suspended Front Axle / Front Chassis Module) or CSC (Cab Suspension Controller / Rear Chassis Module) | Suspension Raise/Lower Circuit is experiencing low current | Full repair manual for code 523948.05, SFA (Suspended Front Axle / Front Chassis Module) or CSC (Cab Suspension Controller / Rear Chassis Module) |
| 523948.06 | CSC (Cab Suspension Controller) | Cab Suspension Lower Solenoid Current High | Full repair manual for code 523948.06, CSC (Cab Suspension Controller) |
| 523948.06 | SFA / CSC / TSC | High Current in Suspension Lowering Circuit | Full repair manual for code 523948.06, SFA / CSC / TSC |
| 523949.03 | CSC | High Voltage At Cab Suspension Raise Solenoid Rear Chassis (CSC) | Full repair manual for code 523949.03, CSC |
| 523949.03 | SFA / CSC | Suspension Raise Solenoid Circuit High Voltage | Full repair manual for code 523949.03, SFA / CSC |
| 523949.05 | CSC | Low Amp Draw At Cab Suspension Raise Solenoid | Full repair manual for code 523949.05, CSC |
| 523949.05 | SFA (Suspended Front Axle Control Unit) / CSC (Cab Suspension Controller) | SFA Up Solenoid Low Amps | Full repair manual for code 523949.05, SFA (Suspended Front Axle Control Unit) / CSC (Cab Suspension Controller) |
| 523949.06 | CSC | High Amp Draw At Cab Suspension Raise Solenoid | Full repair manual for code 523949.06, CSC |
| 523949.06 | SFA (Suspended Front Axle Control Unit) | Front Axle Flow Control Solenoid Circuit Problem / SFA Up Solenoid High Amps | Full repair manual for code 523949.06, SFA (Suspended Front Axle Control Unit) |
| 523950.02 | — | Position Sensor Fault on the Shaft | Full repair manual for code 523950.02 |
| SFA523950.02 | SFA | Axle Position Sensor Problem | Full repair manual for code SFA523950.02, SFA |
| 523950.13 | HCC / HCU | Rear Hitch Position Sensor Out Of Range / Rear Hitch Calibration not Performed Correctly / Hitch Calibration Purge Counting Fault | Full repair manual for code 523950.13, HCC / HCU |
| 523951.02 | SFA (Suspended Front Axle) / TSC (Tractor Suspension Control) | During a Suspended Front Axle (SFA) / Triple Link Suspension (TLS) calibration, the front-wheel drive axle moved in the wrong direction. | Full repair manual for code 523951.02, SFA (Suspended Front Axle) / TSC (Tractor Suspension Control) |
| 523951.1 | SFA (Suspended Front Axle) Control Unit | SFA Not Reached The Required Position | Full repair manual for code 523951.1, SFA (Suspended Front Axle) Control Unit |
| 523951.10 | — | SFA Not Reached The Required Position | Full repair manual for code 523951.10 |
| 523951.13 | TSC | SFA Not Calibrated Or Out Of Calibrated Range | Full repair manual for code 523951.13, TSC |
| 523951.14 | SFA / TSC | SFA Not Calibrated Or Out Of Calibrated Range | Full repair manual for code 523951.14, SFA / TSC |
| 523951.15 | SFA (Suspended Front Axle) | The Pressure In The SFA Has Not Dropped While Calibrating | Full repair manual for code 523951.15, SFA (Suspended Front Axle) |
| 523953.02 | PTD, PTQ, ACU, AIC, or PTP | Speed Control Lever / Forward-Reverse Lever Sensor Circuit Conflict | Full repair manual for code 523953.02, PTD, PTQ, ACU, AIC, or PTP |
| 523953.02 | PTR, PTP, PTQ, or ACU | Speed Control Lever Sensor Circuit Conflict | Full repair manual for code 523953.02, PTR, PTP, PTQ, or ACU |
| 523953.02 | TIA / AIC / PTP / PTQ / PTR / PTD | Speed Control Lever Sensor Circuit Conflict | Full repair manual for code 523953.02, TIA / AIC / PTP / PTQ / PTR / PTD |
| 523953.03 | ACU, AIC, or UIC | The Signal From The Vario Speed Lever Position Sensor Is Not In Range High Voltage | Full repair manual for code 523953.03, ACU, AIC, or UIC |
| 523953.04 | ACU / AIC / UIC | The Signal From The Vario Speed Lever Position Sensor Is Not In Range Low Voltage Either Cab Module (AIC), Or Arm Rest Module (AIC) If Fitted. | Full repair manual for code 523953.04, ACU / AIC / UIC |
| 523954.11 | ACU / UIC / AIC / DOI | Set Speed Adjuster Circuit Conflict / Sensor Unit for Speed Control Lever (Speed Wheel), Output Signals do Not Match | Full repair manual for code 523954.11, ACU / UIC / AIC / DOI |
| 523954.11 | Cab Control Module (DOI), Armrest Control Unit (ACU), or User Interface Control (UIC) | Gear Shift Selector Speed Dial Potentiometer Signal Voltage Too Low | Full repair manual for code 523954.11, Cab Control Module (DOI), Armrest Control Unit (ACU), or User Interface Control (UIC) |
| 523955.31 | — | Transmission Overload Condition | Full repair manual for code 523955.31 |
| ACU523955.31 | ACU | Ballast Fault | Full repair manual for code ACU523955.31, ACU |
| ACU523955.31 | ACU | Load Exceeds Motor Capacity in Manual Mode | Full repair manual for code ACU523955.31, ACU |
| 523959.31 | Cab Module (TIA) | Not Speed Detected On Speed Sensor When Tractor Should Be Moving | Full repair manual for code 523959.31, Cab Module (TIA) |
| 523960.17 | — | Operator Not Seated on the Seat or Sensor | Full repair manual for code 523960.17 |
| ACU523960.17 | ACU | Inoperative Operator or Faulty Sensor | Full repair manual for code ACU523960.17, ACU |
| ACU523960.31 | ACU | Inoperative Operator or Faulty Sensor | Full repair manual for code ACU523960.31, ACU |
| 523961.02 | ACU / UIC / TIA | Park Lock Pressure Sensors Has Noted A Pressure Signal After Park Lock Disengage Signal Has Been received | Full repair manual for code 523961.02, ACU / UIC / TIA |
| 523961.02 | TIA / UIC / ACU | Park lock engagement signal detected while forward/reverse drive lever is not in park lock position | Full repair manual for code 523961.02, TIA / UIC / ACU |
| PTQ523961.07 | PTQ | Linkage Lever / Reversing Lever Fault | Full repair manual for code PTQ523961.07, PTQ |
| 523961.07 | PTQ / EPC / ACU / TIA / TIQ / UIC | Issue With Signals From The Forward/Reverse Lever / Park Lock Engagement Fault | Full repair manual for code 523961.07, PTQ / EPC / ACU / TIA / TIQ / UIC |
