John Deere fault codes & repair guides
All 3,995 codes· 50 per page · page 55 of 80
| Code | Controller | Issue summary | Repair manual |
|---|---|---|---|
| 520959.14 | TIQ / TIP | Operator Not Seated During Speed Selection Change | Full repair manual for code 520959.14, TIQ / TIP |
| 520965.03 | OIC (Operator Interface Console) | CAN BUS Terminating Resistor, CAN BUS Voltage Too High | Full repair manual for code 520965.03, OIC (Operator Interface Console) |
| 520965.04 | OIC (Operator Interface Console) | CAN BUS Terminating Resistor, CAN BUS Voltage Too Low | Full repair manual for code 520965.04, OIC (Operator Interface Console) |
| 520965.06 | OIC (Operator Interface Console) | CAN BUS Terminating Resistor, CAN BUS Current Too High. | Full repair manual for code 520965.06, OIC (Operator Interface Console) |
| 521000.02 | HCC / HCU / SCC / SCO | External Hitch Switch Circuit Fault | Full repair manual for code 521000.02, HCC / HCU / SCC / SCO |
| SCO521000.02 | SCO | Front Hitch External Switch Problem | Full repair manual for code SCO521000.02, SCO |
| 521000.09 | HCC (Hitch Control Computer) / HCU (Hitch Control Unit) | Rear Hitch External Switch CAN Message Missing | Full repair manual for code 521000.09, HCC (Hitch Control Computer) / HCU (Hitch Control Unit) |
| 521000.31 | Hitch Control Unit (HCU) / Hitch Control Controller (HCC) | Rear Hitch External Switch Circuit Conflict | Full repair manual for code 521000.31, Hitch Control Unit (HCU) / Hitch Control Controller (HCC) |
| 521001.02 | Hitch Control Unit (HCU) | HCU/HCC Calibration Fault / Rear Hitch Pressure Valve Gain | Full repair manual for code 521001.02, Hitch Control Unit (HCU) |
| 521001.03 | Hitch Control Unit (HCU) / Hitch Control Controller (HCC) | Rear Hitch Control Valve Circuit Voltage High | Full repair manual for code 521001.03, Hitch Control Unit (HCU) / Hitch Control Controller (HCC) |
| 521001.04 | Hitch Control Unit (HCU) / Hitch Control Controller (HCC) | Rear Hitch Control Valve Circuit Voltage Low | Full repair manual for code 521001.04, Hitch Control Unit (HCU) / Hitch Control Controller (HCC) |
| 521001.05 | HCU | Rear Hitch Raise Solenoid Current Low | Full repair manual for code 521001.05, HCU |
| 521001.06 | HCU | Rear Hitch Raise Solenoid Current High | Full repair manual for code 521001.06, HCU |
| 521001.07 | HCC (Hitch Control Computer) / HCU (Hitch Control Unit) | Rear Hitch Control Valve Circuit Fault / HCU Calibration Fault / Rear Hitch Raise Solenoid | Full repair manual for code 521001.07, HCC (Hitch Control Computer) / HCU (Hitch Control Unit) |
| 521001.11 | Hitch Control Unit (HCU) / Hitch Control Module (HCC) | Rear Hitch Control Valve Raise Position Out Of Range | Full repair manual for code 521001.11, Hitch Control Unit (HCU) / Hitch Control Module (HCC) |
| 521001.13 | Hitch Control Unit (HCC / HCU) | Rear Hitch Control Valve Raise Position Out Of Range Calibration | Full repair manual for code 521001.13, Hitch Control Unit (HCC / HCU) |
| 521002.02 | HCC (Hitch Control Unit) | Stepper Motor for Hitch (Lower Valve), Disrupted Signal during Calibration | Full repair manual for code 521002.02, HCC (Hitch Control Unit) |
| 521002.03 | HCC (Hitch Control Controller) / HCU (Hitch Control Unit) | Rear Hitch Control Valve Circuit Voltage High | Full repair manual for code 521002.03, HCC (Hitch Control Controller) / HCU (Hitch Control Unit) |
| 521002.04 | HCC | Rear Hitch Control Valve Circuit Voltage Low | Full repair manual for code 521002.04, HCC |
| 521002.05 | HCC / HCU | Rear Hitch Lower Solenoid Current Low | Full repair manual for code 521002.05, HCC / HCU |
| 521002.06 | HCU | Rear Hitch Control Valve High Amps | Full repair manual for code 521002.06, HCU |
| 521002.07 | HCC / HCU | Rear Hitch Control Valve Circuit Fault | Full repair manual for code 521002.07, HCC / HCU |
| 521002.11 | HCU / HCC | Rear Hitch Control Valve Lower Position Out Of Range | Full repair manual for code 521002.11, HCU / HCC |
| 521002.13 | Hitch Control Unit (HCC / HCU) | Rear Hitch Control Valve Calibration Fault | Full repair manual for code 521002.13, Hitch Control Unit (HCC / HCU) |
| 521128.02 | AIC (Armrest Interface Control Unit) | CommandQuad™ Range Switch BCDE Circuit Conflict / CommandQuad™ Range Switch BCDE Fault | Full repair manual for code 521128.02, AIC (Armrest Interface Control Unit) |
| 521128.08 | AIC (Armrest Interface Control Unit) | CommandQuad™ Range Switch BCDE Fault | Full repair manual for code 521128.08, AIC (Armrest Interface Control Unit) |
| 521132.02 | AIC | CommandQuad™ Range Switch C Circuit Conflict | Full repair manual for code 521132.02, AIC |
| 521132.08 | AIC | CommandQuad™ Range Switch C Fault | Full repair manual for code 521132.08, AIC |
| 521133.02 | AIC | CommandQuad™ Range Switch B Circuit Conflict or e23™ Drive Lever Circuit Conflict | Full repair manual for code 521133.02, AIC |
| 521133.08 | AIC | CommandQuad™ Range Switch B Fault / e23™ Drive Lever Fault | Full repair manual for code 521133.08, AIC |
| 521136.02 | AIC | CommandQuad™ Range Switch A Circuit Conflict or e23™/16 Speed PST Drive Lever Circuit Conflict | Full repair manual for code 521136.02, AIC |
| 521136.08 | Armrest Interface Control Unit (AIC) | CommandQuad™ Range Switch A Fault / e23™/16 Speed PST Drive Lever Fault | Full repair manual for code 521136.08, Armrest Interface Control Unit (AIC) |
| 521143.02 | DOI | Issue With Signal From CommandQuad Button D | Full repair manual for code 521143.02, DOI |
| 521156.12 | CRU | XM Satellite Radio Communication Fault | Full repair manual for code 521156.12, CRU |
| 521160.02 | CSM | Stereo Volume Decrease Button Fault | Full repair manual for code 521160.02, CSM |
| 521160.08 | CSM (Cab Switch Module) | Lower Radio Volume Button Malfunction | Full repair manual for code 521160.08, CSM (Cab Switch Module) |
| 521161.02 | CSM (Cab Switch Module) | Stereo Volume Increase Button Fault | Full repair manual for code 521161.02, CSM (Cab Switch Module) |
| 521161.08 | CSM (Cab Switch Module) | Raise Radio Volume Button Erratic Signal or Stuck Closed | Full repair manual for code 521161.08, CSM (Cab Switch Module) |
| 521162.02 | CSM (Cab Switch Module) | Stereo Track Decrease Button Fault | Full repair manual for code 521162.02, CSM (Cab Switch Module) |
| 521162.08 | CSM (Cab Switch Module) | Abnormal Signal from Change Radio Tuner / Next Song Button | Full repair manual for code 521162.08, CSM (Cab Switch Module) |
| 521163.02 | CSM (Cab Switch Module) | Stereo Track Increase Button Fault | Full repair manual for code 521163.02, CSM (Cab Switch Module) |
| 521163.08 | CSM (Cab Switch Module) | Change Radio Tuner / Next Song Button Issue | Full repair manual for code 521163.08, CSM (Cab Switch Module) |
| 521164.02 | CSM (Cab Switch Module) | HVAC Fan Speed Increase Button Fault | Full repair manual for code 521164.02, CSM (Cab Switch Module) |
| 521164.08 | CSM | Fan control button (+), fault | Full repair manual for code 521164.08, CSM |
| 521165.02 | CSM (Cab Switch Module) | Stereo Mute Button Fault | Full repair manual for code 521165.02, CSM (Cab Switch Module) |
| 521165.08 | CSM (Cabin Switch Module) | Radio Mute Button Issue | Full repair manual for code 521165.08, CSM (Cabin Switch Module) |
| 521166.02 | CSM (Cab Switch Module) | HVAC Temperature Increase Button Fault | Full repair manual for code 521166.02, CSM (Cab Switch Module) |
| 521166.08 | CSM | Temperature Control Button (+) / Cab Fan Temperature Up Button Fault | Full repair manual for code 521166.08, CSM |
| 521167.02 | Cab Switch Module (CSM) | HVAC Fan Speed Decrease Button Fault | Full repair manual for code 521167.02, Cab Switch Module (CSM) |
| 521167.08 | CSM (Cab Switch Module) | HVAC Fan Speed Decrease Button Fault | Full repair manual for code 521167.08, CSM (Cab Switch Module) |
