John Deere fault codes & repair guides
All 3,995 codes· 50 per page · page 3 of 80
| Code | Controller | Issue summary | Repair manual |
|---|---|---|---|
| 74 | — | Fuel Flow/Throttle Output Signal Stuck Low | Full repair manual for code 74 |
| 75 | — | Open in Rack Actuator Circuit | Full repair manual for code 75 |
| 76 | — | Rack Actuator Circuit Grounded | Full repair manual for code 76 |
| 84 | — | CAN Bus Message Missing from Cornerpost Control Unit - Wheel Speed | Full repair manual for code 84 |
| 84.............. | — | Vehicle Speed Mismatch | Full repair manual for code 84.............. |
| 84.04 | CCU (Chassis Control Unit) | Wheel Speed Sensor Voltage Issue - Low Voltage | Full repair manual for code 84.04, CCU (Chassis Control Unit) |
| 84.05 | CCU | Wheel Speed Sensor Open Circuit Low Amps | Full repair manual for code 84.05, CCU |
| 84.07 | PTR, PTP, PTQ, or EPC | Main Control Module Has Noted A Wheel Speed During A Transmission Calibration | Full repair manual for code 84.07, PTR, PTP, PTQ, or EPC |
| 000084.09 | — | CAN BUS Message Fault in Front Chassis Module | Full repair manual for code 000084.09 |
| 84.09 | PTF, SSU, SST, or CCU | CAN BUS Message Fault | Full repair manual for code 84.09, PTF, SSU, SST, or CCU |
| 84.09 | RPT | CAN BUS Message Fault - Wheel Speed Message Missing | Full repair manual for code 84.09, RPT |
| 84.09 | RPT, SSU, SST, SFA | CAN BUS Message Fault - Wheel Speed Message Missing | Full repair manual for code 84.09, RPT, SSU, SST, SFA |
| 000084.14 | — | Wheel Speed Sensor Missing On CAN BUS Rear Chassis Module (SCC) | Full repair manual for code 000084.14 |
| 000084.14 | — | Tractor Moving Too Fast For Function To Work | Full repair manual for code 000084.14 |
| 84.14 | PTQ / EPC | Wheel Speed Sensor Missing On CAN BUS | Full repair manual for code 84.14, PTQ / EPC |
| 84.14 | SCO, PTQ, SCC, EPC | Tractor Moving Too Fast For Function To Work / Wheel Speed Sensor Missing On CAN BUS / Wheel Speed Sensor Fault | Full repair manual for code 84.14, SCO, PTQ, SCC, EPC |
| 84.15 | CSC (Cab Suspension Control) | Wheel Speed Noted During A Calibration | Full repair manual for code 84.15, CSC (Cab Suspension Control) |
| 84.15 | Front Chassis Module (SFA) | Tractor Wheel Speed Received During Front Axle Suspension Calibration | Full repair manual for code 84.15, Front Chassis Module (SFA) |
| 000084.19 | — | Wheel Speed Sensor Missing On CAN BUS Front Chassis Module (PTF) | Full repair manual for code 000084.19 |
| 84.19 | Front Chassis Module (SFA) | Wheel Speed Sensor Missing On CAN BUS | Full repair manual for code 84.19, Front Chassis Module (SFA) |
| 84.19 | RPT | Incorrect CAN BUS Message, Wheel Speed from BCU | Full repair manual for code 84.19, RPT |
| 000084.31 | — | Wheel Speed Sensor Missing On CAN BUS Front Chassis Module (PTF) | Full repair manual for code 000084.31 |
| 000084.31 | — | Missing Wheel Speed Message From Main Control Module At Rear Of Cab | Full repair manual for code 000084.31 |
| 84.31 | PTF | Wheel Speed Sensor Missing On CAN BUS / Vehicle Speed Mismatch | Full repair manual for code 84.31, PTF |
| 84.31 | RPT | Missing Wheel Speed Message / Wheel Speed Sensor Malfunction | Full repair manual for code 84.31, RPT |
| 85 | — | Speed Sensor Input is Open | Full repair manual for code 85 |
| 86 | — | Speed Sensor Input Voltage is Too Low | Full repair manual for code 86 |
| 87 | — | Speed Sensor Input Voltage is Too High | Full repair manual for code 87 |
| 000090.03 | — | Rear PTO Oil Temperature Circuit Problem | Full repair manual for code 000090.03 |
| 90.03 | CCU (Central Control Unit) or RPT (Rear PTO Control Module) | Transmission Hydraulic Oil Temperature Sensor High Voltage or Rear PTO Oil Temperature Sensor Circuit Voltage High | Full repair manual for code 90.03, CCU (Central Control Unit) or RPT (Rear PTO Control Module) |
| 90.04 | CCU | Transmission Hydraulic Oil / Rear PTO Oil Temperature Sensor Low Voltage | Full repair manual for code 90.04, CCU |
| CCU000090.04 | CCU | PTO Oil Temperature Circuit Issue | Full repair manual for code CCU000090.04, CCU |
| 91 | — | Throttle Input Not Valid or Not Received | Full repair manual for code 91 |
| 91 | — | Primary Analog Throttle Signal Fault | Full repair manual for code 91 |
| 91.............. | — | Throttle #1 Communication Signal Erratic | Full repair manual for code 91.............. |
| 91.............. | — | Check Sensor and Wiring | Full repair manual for code 91.............. |
| 91.............. | — | Throttle #1 Signal Out of Range High | Full repair manual for code 91.............. |
| 000091.02 | — | Accelerator Pedal Voltage Inconsistent | Full repair manual for code 000091.02 |
| 91.02 | OIC, UIC, TIA, or EPC | Accelerator Pedal Potentiometer, Voltages at Channel 1 and Channel 2 Not in the Correct Ratio | Full repair manual for code 91.02, OIC, UIC, TIA, or EPC |
| 000091.03 | — | Accelerator Pedal Signal Voltage High | Full repair manual for code 000091.03 |
| 000091.03 | — | Foot Throttle Signal Voltage Issue (ECU) | Full repair manual for code 000091.03 |
| 000091.03 | — | Foot Throttle Sensor Problem | Full repair manual for code 000091.03 |
| 91.03 | ECU, CAB, EPC, CCU, OIC | Foot Throttle Sensor Circuit Voltage Problem / Accelerator Pedal Signal Voltage High | Full repair manual for code 91.03, ECU, CAB, EPC, CCU, OIC |
| 91.03 | Main Control Module (OIC) | Accelerator Pedal Signal Voltage High | Full repair manual for code 91.03, Main Control Module (OIC) |
| 000091.04 | — | Foot Throttle Signal Voltage Issue (ECU) | Full repair manual for code 000091.04 |
| 000091.04 | — | Accelerator Pedal Signal Voltage Low | Full repair manual for code 000091.04 |
| 91.04 | ECU, CAB, EPC, or OIC | Foot Throttle Sensor Circuit Voltage Problem | Full repair manual for code 91.04, ECU, CAB, EPC, or OIC |
| 91.04 | OIC | Accelerator Pedal Signal Voltage Low | Full repair manual for code 91.04, OIC |
| 91.08 | Cab Module (OIC) / Engine Control Unit (ECU) | Accelerator Pedal Signal Voltage Out Of Range | Full repair manual for code 91.08, Cab Module (OIC) / Engine Control Unit (ECU) |
| 91.14 | ECU (Engine Control Unit) | Hand Throttle Signal Voltage Issue Out Of Range | Full repair manual for code 91.14, ECU (Engine Control Unit) |
