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Case IH Fault Codes List: 478E to 5034

Page 21 of 30 of the full Case IH fault code list (2,992 codes). Each entry is the code as the machine reports it and what the manufacturer data says it means.

Case IH codes 478E to 5034

  • 478EDownstream NOx Sensor Supply Voltage is Out of Range
  • 4790Proportional Valve X-Axis: Valve MMX-A Solenoid Short to 12V
  • 4791Proportional Valve X-Axis: Valve MMX-B Solenoid Short to 12V
  • 4792Proportional Valve Y-Axis: Valve MMY-A Solenoid Short to 12V
  • 4793Proportional Valve Y-Axis: Valve MMY-B Solenoid Short to 12V
  • 4794Motor Mode: Proportional Valve Solenoid Short to 12V
  • 4795ON or OFF Valve Y-Axis: Valve A1 or B1 Solenoid Short To 12V
  • 4796ON or OFF Valve Y-Axis: Valve A2 or B2 Solenoid Short to 12V
  • 4797ON or OFF Valve X-Axis: Valve A3 or B3 Solenoid Short To 12V
  • 4798ON or OFF Valve X-Axis: Valve A4 or B4 Solenoid Short to 12V
  • 4799Motor Mode: Enable Valve Solenoid Short To 12V
  • 4800Proportional Valve X-Axis: Valve MMX-A Solenoid Short to Ground
  • 4801Proportional Valve X-Axis: Valve MMX-B Solenoid Short to Ground
  • 4802Proportional Valve Y-Axis: Valve MMY-A Solenoid Short to Ground
  • 4803Proportional Valve Y-Axis: Valve MMY-B Solenoid Short to Ground
  • 4804Motor Mode: Proportional Valve Solenoid Short to Ground
  • 4805ON or OFF Valve Y-Axis: Valve A1 or B1 Solenoid Short to Ground
  • 4806ON or OFF Valve Y-Axis: Valve A2 or B2 Solenoid Short to Ground
  • 4807ON/OFF Valve X-Axis: Valve A3/B3 Solenoid Short To Ground
  • 4808ON or OFF Valve X-Axis: Valve A4 or B4 Solenoid Short to Ground
  • 4809Motor Mode: Enable Valve Solenoid Short To Ground
  • 4810Proportional Valve X-Axis: Valve MMX-A Solenoid Open Circuit
  • 4811Proportional Valve X-Axis: Valve MMX-B Solenoid Open Circuit
  • 4812Proportional Valve Y-Axis: Valve MMY-A Solenoid Open Circuit
  • 4813Proportional Valve Y-Axis: Valve MMY-B Solenoid Open Circuit
  • 4814Motor Mode: Proportional Valve Solenoid Open Circuit
  • 4815ON or OFF Valve Y-Axis: Valve A1 or B1 Solenoid Open Circuit
  • 4816ON or OFF Valve Y-Axis: Valve A2 or B2 Solenoid Open Circuit
  • 4817ON or OFF Valve X-Axis: Valve A3 or B3 Solenoid Open Circuit
  • 4818ON or Valve X-Axis: Valve A4 or B4 Solenoid Open Circuit
  • 4819Motor Mode: Enable Valve Solenoid Open Circuit
  • 4820Proportional Valve X-Axis: Valve MMX-A Solenoid Unstable Current
  • 4821Proportional Valve X-Axis: Valve MMX-B Solenoid Unstable Current
  • 4822Proportional Valve Y-Axis: Valve MMY-A Solenoid Unstable Current
  • 4823Proportional Valve Y-Axis: Valve MMY-B Solenoid Unstable Current
  • 4824Motor Mode: Proportional Valve Solenoid Unstable Current
  • 4825ON or OFF Valve Y-Axis: Valve A1 or B1 Solenoid Unstable Current
  • 4826ON or OFF Valve Y-Axis: Valve A2 or B2 Solenoid Unstable Current
  • 4827ON or OFF Valve X-Axis: Valve A3 or B3 Solenoid Unstable Current
  • 4828ON or OFF Valve X-Axis: Valve A4 or B4 Solenoid Unstable Current
  • 4829Motor Mode: Enable Valve Solenoid Unstable Current
  • 4830Engine RPM Via CAN Line: Timeout Reception
  • 4840Sensor Supply Line 5V: Value Too High
  • 4841Sensor Supply Line 5V: Value Too Low
  • 4842Sensor Supply Signal: Open Circuit, Towards +5V
  • 4843Sensor Supply Signal: Open Circuit, Towards Ground
  • 4851Proportional Valve X-Axle: Short Circuit Between HSD A And HSD B
  • 4852Proportional Valve X-Axle: Short Circuit Between HSD A And HSD B And Open Circuit On HSD A
  • 4861Proportional Valve Y-Axle: Short Circuit Between HSD A And HSD B
  • 4862Proportional Valve Y-Axle: Short Circuit Between HSD A And HSD B And Open Circuit On HSD A
  • 4900Inconsistency Between Loaded Configuration And I/O Connection
  • 4933Fan Speed Signal Could Not be Measured For a Period
  • 49C3Crankcase Pressure Too High For Too Long
  • 4A8EUpstream NOx Sensor Supply Voltage is Out of Range
  • 4AC3Crankcase Pressure Too High and Oil Pressure Too Low - Fuel in Oil Suspected
  • 4B84Air Filter Clog or Circuit Failure
  • 4B8ADEF System Unable to Build Sufficient Pressure For Dosing
  • 4BCADEF Concentration is Out of Range
  • 4C4EDEF Quality Sensor Internal Failure (Temperature Sensor Failure)
  • 4C84Air Filter Clog or Circuit Failure Present For a Long Time
  • 4CCADEF Quality Sensor Detects Diesel Fuel in DEF Tank
  • 4CDENH3 Sensor Heater Control Failure
  • 4DCADEF Quality Sensor Temperature Failure (Different From DEF Level Temperature)
  • 4DDENH3 Sensor Power Supply Failure
  • 4EDENH3 Sensor Controller Failure
  • 4F15Water in Fuel Sensor or Sensor Circuit Failure
  • 5Pressure Sensor Short To Battery
  • 5001PTO Cab Switch, Or Auto PTO Switch, Or PTO Remote Fender Switch Is On During Tractor Power Up.
  • 5002PTO Switch Interlock
  • 5003Auto PTO Switch Data Is Set To The Error State (CCH Only)
  • 5004Auto PTO Switch Stuck On Condition (CCH Only)
  • 5005PTO Remote Fender Switch Short (CCH Only)
  • 5006PTO Remote Fender Switch Open (CCH Only)
  • 5007PTO Clutch Solenoid Valve Short To +12 Volts
  • 5008Both PTO On And Off Switches Are Simultaneously On. One Of the PTO Switches Is Short To 12 volts.
  • 5009PTO Solenoid Open Circuit Or Shorted To Ground Or AD12vs2 Voltage Is Low.
  • 5010PTO Solenoid Circuit Shorted To B+ When PTO Is In the Off State.
  • 5011Driver Is On And No Current Is Sensed.
  • 5012PTO Clutch Is Slipping Excessively For the Duration Of 5 Seconds Or Longer.
  • 5013Engine Speed Is Too Low For the PTO To Be In the ‘On’ State.
  • 5014PTO Is Commanded Off But the PTO Speed Greater Than Zero.
  • 5015The Software Has Not Detected PTO Shaft Speed For Greater Than 3 Seconds Since the PTO Initial Fill Valve Was Commanded.
  • 5016PTO Speed Is Detected When the PTO Is In the Off State Without Engine RPM.
  • 5017PTO Clutch Did Not Lock Up After 6 Seconds Of Clutch Motion.
  • 5018PTO Speed Sensors Wiring Swapped. (CCH Only)
  • 5019PTO Is Configured As A Two Speed And No Shaft Size Frequency Was Detected When the PTO Was Switched On. (CCH Only)
  • 5020PTO Is Configured As A Single Speed And the Shaft Size Frequency Was Detected When the PTO Was Switched On. Shaft Size Frequency Input Is Only Used For Two Speeds PTO. (CCH Only)
  • 5021Auto PTO Disabled (CCH Only)
  • 5022PTO Switch Is In the On Position When the Engine Is Off.
  • 5023PTO Clutch Lube Solenoid Circuit Shorted To B+ When PTO Is In the Off State. (4WD Only)
  • 5024PTO Clutch Lube Solenoid Open Circuit Or Shorted To Ground Or +12 VF3 Voltage Is Low. (4WD Only)
  • 502612VS2 Voltage Supply Is Low. (Possible Blown Fuse*)
  • 5027PTO Speed Sensor Open Circuit Or Short Circuit To VBAT
  • 5028Clutch Speed Sensor Open Or Short To Vbat
  • 5029PTO Intention Switch Stuck Closed
  • 5030Shaft Size Speed Sensor Open Or Short To Vbat (CCH Only)
  • 5031Shaft Size Speed Sensor Short To GND (CCH Only)
  • 503212VF3 Voltage Supply Is Low. (Possible Blown Fuse*)
  • 5033Rear PTO Cab Normally Closed Switch - Open Circuit
  • 5034Open Circuit Or Short To Ground To The PTO Switches On The Mudguards
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