John Deere fault codes & repair guides
All 3,995 codes· 50 per page · page 66 of 80
| Code | Controller | Issue summary | Repair manual |
|---|---|---|---|
| 523666.03 | CCU, CSC, or SFA | Control Software, Supply Voltage (BAT) Too High | Full repair manual for code 523666.03, CCU, CSC, or SFA |
| 523666.03 | CSC (Comfort System Controller / Cab Suspension Controller) | High Supply Voltage at Rear Chassis Control Unit | Full repair manual for code 523666.03, CSC (Comfort System Controller / Cab Suspension Controller) |
| 523666.03 | Front Chassis Control Unit (FCCU) | Voltage To Module Over 16 Volts / Control Software, Supply Voltage (BAT) Too High | Full repair manual for code 523666.03, Front Chassis Control Unit (FCCU) |
| 523666.04 | CCU | Control Software, Supply Voltage (BAT) Too Low | Full repair manual for code 523666.04, CCU |
| 523666.04 | PLC (Rear Chassis Module / Park Lock Controller) | Supply Voltage (BAT) Too Low | Full repair manual for code 523666.04, PLC (Rear Chassis Module / Park Lock Controller) |
| 523666.04 | PTF | Supply Voltage (BAT) Too Low / Switched Power Voltage Open Circuit | Full repair manual for code 523666.04, PTF |
| 523670.02 | AIC (Armrest Interface Control Unit) | Speed Control Lever Voltage Out of Range / Speed Band 1 and 2 Switches Conflict | Full repair manual for code 523670.02, AIC (Armrest Interface Control Unit) |
| 523670.11 | AIC (Armrest Interface Control Unit) | Drive Lever in Gear at Startup | Full repair manual for code 523670.11, AIC (Armrest Interface Control Unit) |
| 523671.07 | AIC (Armrest Interface Control Unit) | Drive Lever Adjustment Fault | Full repair manual for code 523671.07, AIC (Armrest Interface Control Unit) |
| 523671.11 | AIC | Shift Unit Position Uncertainty in DirectDrive / CommandQuad Transmission | Full repair manual for code 523671.11, AIC |
| 523671.11 | Armrest Interface Control Unit (AIC) or Cab Module | Shift Unit Position Uncertainty in DirectDrive Transmission | Full repair manual for code 523671.11, Armrest Interface Control Unit (AIC) or Cab Module |
| 523677.02 | OIC / EPC | S158 Declutch Switch on Range Shift Lever Faulty | Full repair manual for code 523677.02, OIC / EPC |
| 523677.03 | OIC / EPC | S158 Declutch Switch on Range Shift Lever, Signal Voltage too High | Full repair manual for code 523677.03, OIC / EPC |
| 523677.04 | OIC or EPC | S158 Declutch Switch on Range Shift Lever, Signal Voltage Too Low | Full repair manual for code 523677.04, OIC or EPC |
| 523677.07 | OIC / EPC | Declutch Switch on Range-Shift Lever (S158), Malfunction / Voltage Too High During Start-Up | Full repair manual for code 523677.07, OIC / EPC |
| 523677.14 | PTQ / EPC / TIQ | INFORMATION FOR OPERATOR: Declutch Switch on Range Shift Lever Deactivated | Full repair manual for code 523677.14, PTQ / EPC / TIQ |
| 523677.31 | PTQ (PowrQuad Transmission) / EPC (Electronic Power Control) | Declutch Switch on Range Shift Lever Deactivated, No Operator Present | Full repair manual for code 523677.31, PTQ (PowrQuad Transmission) / EPC (Electronic Power Control) |
| 523690.03 | OIC | Switch for Remote Control of Rear Hitch (Right/Left), Voltage Too High | Full repair manual for code 523690.03, OIC |
| 523690.04 | OIC (Operator Interface Console / User Interface Controller) | Switch for Remote Control of Rear Hitch (Right/Left), Voltage Too Low | Full repair manual for code 523690.04, OIC (Operator Interface Console / User Interface Controller) |
| 523693.09 | SCC | Missing SV I (or SCV I) External Control Message for 1 Second | Full repair manual for code 523693.09, SCC |
| 523693.19 | SCC | SV I (Selective Control Valve I) External Control Fault Message Received | Full repair manual for code 523693.19, SCC |
| 523694.09 | SCC | Missing SCV II (or SV II) External Control Message for 1 Second | Full repair manual for code 523694.09, SCC |
| 523694.19 | SCC (Rear Chassis Control Unit) / SCU | SV II (or SCV II) External Control Fault Message Received | Full repair manual for code 523694.19, SCC (Rear Chassis Control Unit) / SCU |
| 523695.09 | SCC / SCO / SCU | Missing SCV V External Control Message for 1 Second | Full repair manual for code 523695.09, SCC / SCO / SCU |
| 523695.19 | SCC / SCO / SCU | SCV V External Control Lever Fault Message Received | Full repair manual for code 523695.19, SCC / SCO / SCU |
| 523696.09 | SCC (SCV CAN Controller / Rear Chassis Controller) | CAN BUS Message Rate Fault / Missing External Control Message for 1 Second | Full repair manual for code 523696.09, SCC (SCV CAN Controller / Rear Chassis Controller) |
| 523696.19 | SCC (SCV CAN Controller / Rear Chassis Controller) | SCV VI External Control Lever Fault Message Received | Full repair manual for code 523696.19, SCC (SCV CAN Controller / Rear Chassis Controller) |
| CCU523698.9 | CCU | Check Connection | Full repair manual for code CCU523698.9, CCU |
| 523700.07 | PTA | Signals from Transmission Speed Sensors Mismatch | Full repair manual for code 523700.07, PTA |
| 523701.05 | BCU / HCC | M08 Stepper Motor for Hitch (Coil 2), Open Circuit | Full repair manual for code 523701.05, BCU / HCC |
| 523701.06 | HCC / BCU | M08 Stepper Motor for the Hitch (Coil 2) Current Too High | Full repair manual for code 523701.06, HCC / BCU |
| 523702.14 | EIC (Electronic Instrument Cluster) / BCU (Basic Control Unit) | Main Control Module Has Noted An Internal Issue When Booting Up / VIN Information, System Deactivated | Full repair manual for code 523702.14, EIC (Electronic Instrument Cluster) / BCU (Basic Control Unit) |
| 523702.31 | EIC (Engine Interface Control Unit) | Main Control Module Has Noted An Internal Issue When Booting Up. (EIC) | Full repair manual for code 523702.31, EIC (Engine Interface Control Unit) |
| 523703.03 | HCC / BCU | Right Draft Pin Sensor Signal Voltage High | Full repair manual for code 523703.03, HCC / BCU |
| 523703.04 | HCC or BCU | Right Draft Pin Sensor Signal Voltage Low | Full repair manual for code 523703.04, HCC or BCU |
| 523703.13 | HCC | Draft Pin Sensor Out Of Range | Full repair manual for code 523703.13, HCC |
| 523711.02 | PTD, PTQ, or PTI | Wheel Speed Sensor (Channel 1), Incorrect Speed | Full repair manual for code 523711.02, PTD, PTQ, or PTI |
| 523735.03 | — | FWD/REV Solenoid Short to High | Full repair manual for code 523735.03 |
| 523735.04 | — | FWD/REV Solenoid Short to Ground | Full repair manual for code 523735.04 |
| 523744 | — | A/C Compressor Fault | Full repair manual for code 523744 |
| 523745.02 | AIC (Armrest Interface Control Unit) | iTEC™ Program Selection Switch Logic Fault | Full repair manual for code 523745.02, AIC (Armrest Interface Control Unit) |
| 523745.03 | AIC (Armrest Interface Control Unit) | High Voltage Fault in the iTEC™ Program Selection Switch | Full repair manual for code 523745.03, AIC (Armrest Interface Control Unit) |
| 523745.04 | AIC (Armrest Interface Control Unit) | Switch for iTEC™ Program Selection, Voltage Too Low | Full repair manual for code 523745.04, AIC (Armrest Interface Control Unit) |
| 523745.11 | AIC (Armrest Interface Control Unit) | iTEC switch stuck fault | Full repair manual for code 523745.11, AIC (Armrest Interface Control Unit) |
| 523749.31 | Front Chassis Module (PTF) | Front PTO Speed Too Slow / Front PTO Load Too High | Full repair manual for code 523749.31, Front Chassis Module (PTF) |
| 523749.31 | RPT or BCU | Rear PTO Speed Slippage High / Rear PTO Load Too High | Full repair manual for code 523749.31, RPT or BCU |
| 523751.05 | HCC or BCU | Rear Hitch Control Valve Low Amps / Open Circuit Detected in M08 Stepper Motor for Hitch (Coil 1) | Full repair manual for code 523751.05, HCC or BCU |
| 523751.06 | HCC / BCU | Rear Hitch Control Valve High Amps / M08 Stepper Motor for Hitch (Coil 1), Current Too High | Full repair manual for code 523751.06, HCC / BCU |
| 523758.03 | OIC | External PTO Switch High Voltage Right Side Switch / Right Switch for Remote Control of Rear PTO, Voltage Too High | Full repair manual for code 523758.03, OIC |
| 523758.04 | OIC (Operator Interface Console) | Right Switch for Remote Control of Rear PTO, Voltage Too Low | Full repair manual for code 523758.04, OIC (Operator Interface Console) |