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John Deere fault codes & repair guides

All 3,995 codes· 50 per page · page 58 of 80

John Deere fault codes with controller, issue summary and a link to the full repair manual
CodeControllerIssue summaryRepair manual
521539.03RLCFront Inner Roof Flood Light Left Voltage HighFull repair manual for code 521539.03, RLC
521539.05RLCFront Inner Roof Flood Light Left Current LowFull repair manual for code 521539.05, RLC
521539.06RLCFront Inner Roof Flood Light Left Current HighFull repair manual for code 521539.06, RLC
521541.03RLCRear Side Roof Flood Light Left Voltage HighFull repair manual for code 521541.03, RLC
521541.05RLCRear Side Roof Flood Light Left Current LowFull repair manual for code 521541.05, RLC
521541.06RLC (Roof Lighting Control / Cab Roof Module)Rear Side Roof Flood Light Left Current HighFull repair manual for code 521541.06, RLC (Roof Lighting Control / Cab Roof Module)
521542.03RLC (Roof Lighting Control / Cab Roof Module)Rear Roof Warning (NA Only) or Rear Corner Roof Light (Eur Only) Left Voltage HighFull repair manual for code 521542.03, RLC (Roof Lighting Control / Cab Roof Module)
521542.05RLC (Cab Roof Module / Roof Lighting Controller)Rear Roof Warning (NA Only) or Rear Corner Roof Light (Eur Only) Left Current LowFull repair manual for code 521542.05, RLC (Cab Roof Module / Roof Lighting Controller)
521542.06RLCRear Roof Warning (NA Only) or Rear Corner Roof Light (Eur Only) Left Current HighFull repair manual for code 521542.06, RLC
521544.03RLCRear Inner Left Roof Flood Light Voltage HighFull repair manual for code 521544.03, RLC
521544.05RLC (Roof Lighting Control / Cab Roof Module)Rear Inner Left Roof Flood Light Current LowFull repair manual for code 521544.05, RLC (Roof Lighting Control / Cab Roof Module)
521544.06RLC (Cab Roof Module)Rear Inner Left Roof Flood Light Current HighFull repair manual for code 521544.06, RLC (Cab Roof Module)
521547.03CLC (Cab Load Controller)Left Rear Mud Guard (Fender) Work Light Circuit - Voltage Above NormalFull repair manual for code 521547.03, CLC (Cab Load Controller)
521547.06CLC (Cab Load Center)High Amp Draw (Current Above Normal or Grounded Circuit) on Left Rear Mud Guard Work Light CircuitFull repair manual for code 521547.06, CLC (Cab Load Center)
521550.03VLCFront Outer Hood Flood Lights Right Circuit Voltage HighFull repair manual for code 521550.03, VLC
521550.05Vehicle Load Center (VLC)Front Outer Hood Flood Lights Right Circuit Current LowFull repair manual for code 521550.05, Vehicle Load Center (VLC)
521550.06VLCFront Outer Hood Flood Lights Right Circuit Current HighFull repair manual for code 521550.06, VLC
521553.03RLCMid Body Flood Light Right Voltage HighFull repair manual for code 521553.03, RLC
521553.05RLC (Roof Lighting Controller)Mid Body Flood Light Right Current LowFull repair manual for code 521553.05, RLC (Roof Lighting Controller)
521553.06RLC (Cab Roof Module / Roof Lighting Controller)Mid Body Flood Light Right Current HighFull repair manual for code 521553.06, RLC (Cab Roof Module / Roof Lighting Controller)
521554.03Cab Roof Module (RLC)High Voltage Detected at The Grab Rail Work Light Pin On The Module When The Lights Are Turned OnFull repair manual for code 521554.03, Cab Roof Module (RLC)
521554.05Cab Roof Module (RLC)Abnormally Low Current Draw on Grab Rail Work Light CircuitFull repair manual for code 521554.05, Cab Roof Module (RLC)
521554.06RLC (Roof Lighting Controller / Cab Roof Module)Right Worklight on Cab Frame or Right Xenon (HID) Worklight on Cab Frame, Current Too HighFull repair manual for code 521554.06, RLC (Roof Lighting Controller / Cab Roof Module)
521555.03RLC (Cab Roof Module / Roof Lighting Controller)Front Roof Warning (NA Only) or Front Corner Roof Light (Eur Only) Right Voltage High / Right Outer Worklight on Front of Roof Voltage HighFull repair manual for code 521555.03, RLC (Cab Roof Module / Roof Lighting Controller)
521555.05RLC (Cab Roof Module / Roof Lighting Controller)Front Roof Warning (North America Only) or Front Corner Roof Light (Europe Only) Right Current Low.Full repair manual for code 521555.05, RLC (Cab Roof Module / Roof Lighting Controller)
521555.06RLCFront Roof Warning (NA Only) or Front Corner Roof Light (Eur Only) Right Current HighFull repair manual for code 521555.06, RLC
521556.03Cab Roof Module (RLC)High Voltage Detected on The Front Roof Middle Right Work light Pin On The Module Cab Roof Module (RLC)Full repair manual for code 521556.03, Cab Roof Module (RLC)
521556.05RLCCurrent Below Normal or Open Circuit on the front middle right roof work lightFull repair manual for code 521556.05, RLC
521556.06RLCHigh Amps are Detected on the Front Roof Middle Right Work Light PinFull repair manual for code 521556.06, RLC
521557.03RLCFront Inner Roof Flood Light Right Voltage HighFull repair manual for code 521557.03, RLC
521557.05RLCFront Inner Roof Flood Light Right Current LowFull repair manual for code 521557.05, RLC
521557.06RLCFront Inner Roof Flood Light Right Current HighFull repair manual for code 521557.06, RLC
521559.03RLC (Cab Roof Module / Roof Lighting Controller)Rear Side Roof Flood Light Right Voltage HighFull repair manual for code 521559.03, RLC (Cab Roof Module / Roof Lighting Controller)
521559.05RLCRear Side Roof Flood Light Right Current LowFull repair manual for code 521559.05, RLC
521559.06RLCRear Side Roof Flood Light Right Current HighFull repair manual for code 521559.06, RLC
521560.03RLCRear Roof Warning (North America Only) or Rear Corner Roof Light (Europe Only) Right Voltage High.Full repair manual for code 521560.03, RLC
521560.05RLC (Roof Lighting Controller / Cab Roof Module / Cab Load Center)Right Outer Worklight on Rear of Roof or Right Turn-Signal Light on Rear of Roof (SAE), Current Too LowFull repair manual for code 521560.05, RLC (Roof Lighting Controller / Cab Roof Module / Cab Load Center)
521560.06RLCRear Roof Warning (NA Only) or Rear Corner Roof Light (Eur Only) Right Current HighFull repair manual for code 521560.06, RLC
521562.03RLCRear Inner Right Roof Flood Light Voltage HighFull repair manual for code 521562.03, RLC
521562.05RLCRight Inner Worklight on Rear of Roof or Right Xenon (HID) Worklight on Rear of Roof, Current Too LowFull repair manual for code 521562.05, RLC
521562.06RLC (Cab Roof Module / Roof Lighting Controller)Rear Inner Right Roof Flood Light Current HighFull repair manual for code 521562.06, RLC (Cab Roof Module / Roof Lighting Controller)
521565.03CLC (Cab Load Controller)Trailer Work Light Circuit Voltage HighFull repair manual for code 521565.03, CLC (Cab Load Controller)
521565.06CLC (Cab Load Controller)Trailer Work Light Circuit Current HighFull repair manual for code 521565.06, CLC (Cab Load Controller)
521570.09AIC (Armrest Interface Control Unit / Armrest Integrated Controller)Armrest Rear Hitch Setup Controls Module Message MissingFull repair manual for code 521570.09, AIC (Armrest Interface Control Unit / Armrest Integrated Controller)
521571.09AIC (Armrest Interface Control Unit)Armrest Front Left Module Message MissingFull repair manual for code 521571.09, AIC (Armrest Interface Control Unit)
521572.09AIC (Armrest Interface Control Unit)Armrest Front Middle Module Message MissingFull repair manual for code 521572.09, AIC (Armrest Interface Control Unit)
521573.09AIC (Armrest Interface Control Unit)Armrest Front Right Module Message Missing / Communication Fault in Armrest Front Right ModuleFull repair manual for code 521573.09, AIC (Armrest Interface Control Unit)
521574.09AIC (Armrest Interface Control Unit)Armrest Middle Right Module Message MissingFull repair manual for code 521574.09, AIC (Armrest Interface Control Unit)
521577.09AIC (Armrest Interface Control Unit)Armrest Rear Right Module Message MissingFull repair manual for code 521577.09, AIC (Armrest Interface Control Unit)
521835.2CLC (Cab Load Center) / RLC (Roof Lighting Control)Control Unit Ground Circuit Fault / Control Software Ground Contact FaultFull repair manual for code 521835.2, CLC (Cab Load Center) / RLC (Roof Lighting Control)