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Challenger Tractor Fault Codes List: U520277 to V83

Page 25 of 25 of the full Challenger Tractor fault code list (2,434 codes). Each entry is the code as the machine reports it and what the manufacturer data says it means.

Challenger Tractor codes U520277 to V83

  • U520277Battery Voltage Monitoring: Voltage Too High
  • U520296Dosing Strategy Monitoring Module NOx Conversion Efficiency: Threshold 1 Error
  • U520297Dosing Strategy Monitoring Module NOx Conversion Efficiency: Threshold 2 Error
  • U520298Evaluation of Atmospheric Pressure: Range Error of Barometric Pressure
  • U520299Terminal 15 Circuit Defect Ignition Switch Plausibility Error
  • U520301NOx Sensor Concentration Signal Error: Sensor Supply Not in Range
  • U520302NOx Heater Signal From NOx Sensor: Plausibility Check
  • U520308NOx Sensor Plausibility Error: Signal Not Plausible
  • U520309Start Up Cycle Counter For Pressure Drop During Dosing: Max Limit of Counter Exceeded
  • U697Back Flow Pipe Heater Power Stage Error: Shortcut to Battery+
  • U698Cooling Pipe Heater Power Stage Error: Shortcut to Battery+
  • U699Inlet Pipe Heater Power Stage Error: Shortcut to Battery+
  • U700Pressure Pipe Heater Power Stage Error: Shortcut to Battery+
  • V11No Receive Message 1
  • V12No Receive Message 2
  • V13Implausible Receive Message 1
  • V14Implausible Receive Message 2
  • V15Potentiometer/PWM Fault
  • V16EEPROM Inconsistent
  • V17No Faults, but Valve Had Switched Off for > 1. . .4s and Can Only Switch Itself Back On
  • V21Undervoltage < Customer Value (Optional Shutdown)
  • V22Overvoltage < Customer Value (Optional Shutdown)
  • V23Spool Deflection Too Short (Optional Shutdown)
  • V24Spool Deflection Excessive
  • V25Open Center Position Not Reached
  • V26Manual Operation
  • V31Undervoltage < 8 V, Valve Shuts Off Output Stage
  • V32Overvoltage 36 .. .45 V, Valve Shuts Off Output Stage
  • V41High Overvoltage (> Approx. 45 V)
  • V42Output Stage Fault (Output Stage For Pilot Solenoid Valve)
  • V43Position Transducer Fault
  • V81Valve Spool Cannot be Brought Back to Neutral Position
  • V82Valve Spool Not in Neutral When Switched On
  • V83Checksum Error
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