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CAT Fault Codes List: 441 to 498

Page 32 of 83 of the full CAT fault code list (8,286 codes). Each entry is the code as the machine reports it and what the manufacturer data says it means.

CAT codes 441 to 498

  • 441Idle Elevated to Increase Battery Voltage
  • 4410Aftertreatment 2 DEF Line Heater 4 Fault
  • 4417Aftertreatment 2 DEF Average Consumption Fault
  • 4418Aftertreatment 2 SCR Commanded DEF Consumption Fault
  • 442Engine Failed to Stop with No Fuel Command
  • 4420Aftertreatment 2 DEF Temperature 2 Fault
  • 4421Aftertreatment 2 DEF Concentration Fault
  • 4422Aftertreatment 2 DEF Conductivity Fault
  • 4423Aftertreatment 2 DEF Temperature 2 Fault
  • 4424Aftertreatment 2 DEF Properties Fault
  • 4425Aftertreatment 2 DEF Type Fault
  • 4426Aftertreatment 2 DEF Tank Level Fault
  • 4427Aftertreatment 2 DEF Tank Temperature Fault
  • 4428Aftertreatment 2 DEF Tank Level 2 Fault
  • 4429Aftertreatment 2 DEF Tank Level Fault
  • 443High Auxiliary Pressure
  • 4430Aftertreatment 2 DEF Tank 1 Temperature Fault
  • 4431Aftertreatment 2 DEF Tank Heater Fault
  • 4432Aftertreatment 2 DEF Tank 1 Heater Fault
  • 4433Aftertreatment 2 DEF Tank 2 Level Fault
  • 4434Aftertreatment 2 DEF Tank 2 Temperature Fault
  • 4435Aftertreatment 2 DEF Tank 2 Level 2 Fault
  • 4436Aftertreatment 2 DEF Tank 2 Level Fault
  • 4437Aftertreatment 2 DEF Tank 2 Temperature Fault
  • 4438Aftertreatment 2 DEF Tank 2 Heater Fault
  • 4439Aftertreatment 2 DEF Tank 2 Heater Fault
  • 444Low Auxiliary Pressure
  • 4440Aftertreatment 2 DEF Pump Motor Speed Fault
  • 4441Aftertreatment 2 DEF Pump Drive Percentage Fault
  • 4442Aftertreatment 2 DEF Return Valve Fault
  • 445Engine Cylinder Head Temp Bank B
  • 4450Aftertreatment 2 DEF Controller Fault
  • 4451Aftertreatment 2 DEF Dosing Unit Fault
  • 4452Aftertreatment 2 DEF Dosing Unit Input Lines Fault
  • 4453Aftertreatment 2 DEF Tank Quality Fault
  • 446Engine Cylinder Head Temp Bank A
  • 447Park Brake Not Engaged With No Operator In Seat
  • 448PTO Is Engaged With No Operator In Seat
  • 449Implement Not in Hold State With No Operator In Seat
  • 4-5Engine Injector Cylinder #04 : Current Below Normal
  • 450PTO Not Engaged Because Hitch Not Centered
  • 451PTO Engage Attempted With Remote Rear PTO Switch While Tractor Not In Park
  • 452Excessive Inching Mode Operation
  • 453Desired Gear Prohibited for Machine Speed
  • 454Hydraulic Case Drain Filter Plugged
  • 455Hydraulic Pilot Supply Filter Plugged
  • 456Hydrax Oil Pressure Switch
  • 457Brake Oil Temperature Sensor
  • 458Tilt Cylinder Rod Pressure Sensor
  • 459Engine Rated Horsepower Output Changed
  • 460Fuel Pressure Sensor - after fuel filter
  • 461Another Secondary Brake Solenoid
  • 462Local GPS Receiver Internal Temperature High
  • 463Base (Remote) GPS Receiver Internal Temperature High
  • 464Inertial Measurement Unit Internal Temperature High
  • 465Throttle Lever High Idle Position Switch
  • 466Left Track Steering Pedal Position Sensor
  • 467Blade Lift Control Out Of Neutral At Inappropriate Time
  • 468Blade Tilt Control Out Of Neutral At Inappropriate Time
  • 469Blade Pitch Control Out Of Neutral At Inappropriate Time
  • 470Mode Select Switch Depressed At Inappropriate Time
  • 471Manual Select Switch Depressed At Inappropriate Time
  • 472Ripper In/Out Control Out Of Neutral At Inappropriate Time
  • 473Ripper Lift Control Out Of Neutral At Inappropriate Time
  • 474Ripper Autostow Switch Depressed At Inappropriate Time
  • 475Winch Spool In/Out Control Out Of Neutral At Inappropriate Time
  • 4752EGR Cooler Efficiency: EGR outlet Temperature above expected
  • 476Winch Drum Release Control Out Of Neutral At Inappropriate Time
  • 4765DOCIT signal does not agree with other exhaust sensors
  • 4766DOCOT signal does not agree with other exhaust sensors
  • 4767Aftertreatment #1 DPF pressure issue
  • 477Local GPS Receiver L1 Signal Lost
  • 4779Aftertreatment #1 catalyst gas temp issue
  • 478Local GPS Receiver L2 Signal Lost
  • 4781DPF #1 soot mass level high
  • 4783DPF #1 mean soot signal abnormal
  • 4785DPF #1 soot sensor fault
  • 479Base (Remote) GPS Receiver L1 Signal Lost
  • 4792Aftertreatment #1 SCR catalyst issue
  • 48km/h (30 mph) (127 rnph) (127 mph) • Brake switch (No. 2)
  • 480Base (Remote) GPS Receiver L2 Signal Lost
  • 481DGPS Correction Signal Lost
  • 4817Engine intake manifold pressure abnormal
  • 482Unexpected Left Track Forward Movement Detected
  • 483Unexpected Right Track Forward Movement Detected
  • 484Unexpected Left Track Reverse Movement Detected
  • 485Unexpected Right Track Reverse Movement Detected
  • 486Multiple Security System Master ECMs Detected
  • 487No Security System Master ECM Detected
  • 488Low Intake Valve Actuation Pressure
  • 489Intake Valve Actuation Pressure System Failure
  • 490Park Brake Applied While Shift Lever Not In Neutral
  • 491Incorrect Number of Valve ECMs Detected
  • 4923rd Function Rearward Solenoid
  • 4934th Function Forward Solenoid
  • 494Speed Inappropriate for Automatic Guidance System Operation
  • 495Unexpected Guidance System Deactivation Due to GPS Hardware
  • 496Unexpected Guidance System Deactivation Due to Inertial Measurement Sensor
  • 497Unexpected Guidance System Deactivation Due to Steering System
  • 498Fuel Pressure Present During Initial Cranking
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