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Case IH fault codes & repair guides

All 9,847 codes· 50 per page · page 133 of 197

Case IH fault codes with controller, issue summary and a link to the full repair manual
CodeControllerIssue summaryRepair manual
19625Engine Control Module (ECM / ECU)Over Boost DetectionFull repair manual for code 19625, Engine Control Module (ECM / ECU)
19626VCM / Engine ECUOver pressure too high at P3 in Pressure charger regulatorFull repair manual for code 19626, VCM / Engine ECU
19627Engine Control Module (ECM) / EDC (Electronic Diesel Control)Over boost deviation at P3 too high in Pressure charger regulatorFull repair manual for code 19627, Engine Control Module (ECM) / EDC (Electronic Diesel Control)
19628Engine Control Unit (ECU) / Electronic Diesel Control (EDC) moduleBoost pressure set point is reached too slowFull repair manual for code 19628, Engine Control Unit (ECU) / Electronic Diesel Control (EDC) module
19629Engine Control Module (ECM / ECU)Common rail pressure control valve learning value too highFull repair manual for code 19629, Engine Control Module (ECM / ECU)
19630Engine Control Module (ECM)Rail pressure control valve learning value too lowFull repair manual for code 19630, Engine Control Module (ECM)
19636Engine Control Unit (ECU)Fuel pressure control valve output open loadFull repair manual for code 19636, Engine Control Unit (ECU)
19637Engine Control Module (ECM / EDC)Fuel Filter Clog Switch blocked in clogged statusFull repair manual for code 19637, Engine Control Module (ECM / EDC)
19638Engine Control Unit (ECU) / Engine Control Module (ECM)Fuel pressure control valve shorted to battery voltage on the high sideFull repair manual for code 19638, Engine Control Unit (ECU) / Engine Control Module (ECM)
19639eXBR1 (Electronic Trailer Brake Controller) / EBM (Electronic Brake Module)Short circuit to ground in the high side of the pressure control valveFull repair manual for code 19639, eXBR1 (Electronic Trailer Brake Controller) / EBM (Electronic Brake Module)
19642Engine Control Unit (ECU / EDC) or Transmission Control Unit (TCU)Short circuit to battery of the pressure control valve output.Full repair manual for code 19642, Engine Control Unit (ECU / EDC) or Transmission Control Unit (TCU)
19643Engine Control Module (ECM / ECU)Short circuit to ground of the pressure control valve output.Full repair manual for code 19643, Engine Control Module (ECM / ECU)
19644Engine Control Unit (ECU) or Dosing Control Unit (DCU)Signal range check high error of pressure control valve AD-channelFull repair manual for code 19644, Engine Control Unit (ECU) or Dosing Control Unit (DCU)
19645Engine Control Unit (ECU) / Engine Control Module (ECM)Signal range check low error of pressure control valve AD-channelFull repair manual for code 19645, Engine Control Unit (ECU) / Engine Control Module (ECM)
19646Engine Control Module (ECM) or Denoxtronic / DEF Control Unit (DCU)Defect fault check for open load errorFull repair manual for code 19646, Engine Control Module (ECM) or Denoxtronic / DEF Control Unit (DCU)
19647Engine Control Unit (ECU)Defect fault check for over temperature errorFull repair manual for code 19647, Engine Control Unit (ECU)
19648Vehicle Control Module (VCM), Engine Control Unit (ECU), or Dosing Control Unit (DCU)Defect fault check for short circuit to battery errorFull repair manual for code 19648, Vehicle Control Module (VCM), Engine Control Unit (ECU), or Dosing Control Unit (DCU)
19649DCU (Dosing Control Unit)UREA Tank level error – Level over CAN: SAE J1939 no Signal available / Level sensor connected directly: Sensor Supply error (Open Circuit)Full repair manual for code 19649, DCU (Dosing Control Unit)
19650DCUUREA Tank level errorFull repair manual for code 19650, DCU
19650DCU (Dosing Control Unit)DEF/AdBlue tank level sensor voltage too highFull repair manual for code 19650, DCU (Dosing Control Unit)
19650 (F-1761-03)DCU (Dosing Control Unit) or Engine ECUDEF/AdBlue tank level sensor voltage too highFull repair manual for code 19650 (F-1761-03), DCU (Dosing Control Unit) or Engine ECU
19651DCU (Dosing Control Unit)UREA (DEF) Tank Level Error / Ambient Temperature ErrorFull repair manual for code 19651, DCU (Dosing Control Unit)
19651 (DTC 229A) - ECUDCU (Dosing Control Unit)DEF/AdBlue tank level sensor voltage too low / UREA Tank level error - short circuit lowFull repair manual for code 19651 (DTC 229A) - ECU, DCU (Dosing Control Unit)
19651 (F-1761-04)DCU (Dosing Control Unit) or Engine ECUDEF/AdBlue tank level sensor voltage too lowFull repair manual for code 19651 (F-1761-04), DCU (Dosing Control Unit) or Engine ECU
19651DCU / ECUDEF/AdBlue tank level sensor voltage too low.Full repair manual for code 19651, DCU / ECU
19652DCU (Dosing Control Unit)UREA Tank level error (CAN message or electrical with real sensor) – (TIMEOUT)Full repair manual for code 19652, DCU (Dosing Control Unit)
19653DCU (Dosing Control Unit)UREA Tank level error (CAN message or electrical with real sensor) – Level over CAN: SAE J1939 Erroneous Signal / Level sensor connected directly: SRC low (too many CAN messages)Full repair manual for code 19653, DCU (Dosing Control Unit)
19654DCU (Dosing Control Unit)UREA Tank level error (CAN message or electrical with real sensor) – Level over CAN: SAE J1939 Erroneous Signal Level sensor connected directly: SRC low – P203A Reagent - tank level sensor - Open circuitFull repair manual for code 19654, DCU (Dosing Control Unit)
19655Engine Control Module (ECM / EDC)Defect fault check for short circuit to ground errorFull repair manual for code 19655, Engine Control Module (ECM / EDC)
19656Engine Control Module (ECM)Plausibility check: Measured fuel pressure upstream main filter is higher than the possible physical maximum in this operating point.Full repair manual for code 19656, Engine Control Module (ECM)
19657Engine Control Module (ECM) / Vehicle Control Module (VCM)Plausibility check: Measured fuel pressure upstream main filter is less than the possible physical minimum in this operating pointFull repair manual for code 19657, Engine Control Module (ECM) / Vehicle Control Module (VCM)
19661Engine Control Unit (ECU) or Vehicle Control Module (VCM)No valid Fuel filter pressure received via CAN (Pressure == 0)Full repair manual for code 19661, Engine Control Unit (ECU) or Vehicle Control Module (VCM)
19662Engine Control Module (ECM)Fuel pressure sensor voltage is higher than expectedFull repair manual for code 19662, Engine Control Module (ECM)
19663Engine Control Unit (ECU)Fuel pressure sensor voltage is lower than expectedFull repair manual for code 19663, Engine Control Unit (ECU)
19664Engine Control Module (ECM)Intake Manifold Pressure is Too HighFull repair manual for code 19664, Engine Control Module (ECM)
19665Engine Control Module (ECM)Intake manifold pressure is too lowFull repair manual for code 19665, Engine Control Module (ECM)
19666Engine Control Module (ECM) / EDCQuantity balance check if a successful PRV opening is ensured.Full repair manual for code 19666, Engine Control Module (ECM) / EDC
19667Engine Control Unit (ECU)ECU Powerstage for pre-supply pump: open load of outputFull repair manual for code 19667, Engine Control Unit (ECU)
19668Engine Control Unit (ECU)ECU Powerstage for pre-supply pump: Over temperature errorFull repair manual for code 19668, Engine Control Unit (ECU)
19669Engine Control Module (ECM / ECU)ECU Powerstage for pre-supply pump: short circuit to battery.Full repair manual for code 19669, Engine Control Module (ECM / ECU)
19670Engine Control Module (ECM)ECU Powerstage for pre-supply pump: short circuit to groundFull repair manual for code 19670, Engine Control Module (ECM)
19671VCM (Vehicle Control Module) / Engine ECUPlausibility defect between Turbine downstream pressure sensor and environmental pressureFull repair manual for code 19671, VCM (Vehicle Control Module) / Engine ECU
19672Engine ECU / VCMTurbine downstream pressure is too highFull repair manual for code 19672, Engine ECU / VCM
19673Engine ECU / VCMTurbine downstream pressure is too low.Full repair manual for code 19673, Engine ECU / VCM
19674Engine Control Module (ECM)Turbine downstream pressure sensor comparison to modeled pressure failure.Full repair manual for code 19674, Engine Control Module (ECM)
19675Engine Control Module (ECM)Turbine upstream pressure is too highFull repair manual for code 19675, Engine Control Module (ECM)
19676DCU (Dosing Control Unit)Ambient Temperature: SAE J1939 Check for CAN receive signal : (Signal Range Check: Signal not in range / Erroneous Signal / Signal not available) | SAE J1939 Check for CAN receive signal : (Ambient air temperature not in range) | P0600 Serial Communication LinkFull repair manual for code 19676, DCU (Dosing Control Unit)
19677DCUAmbient Temperature: SAE J1939 Check for CAN receive signal : (Signal Range Check: Signal not in range / Erroneous Signal / Signal not available) _timeout _P0071 Ambient Air Temperature Sensor Range/Performance.Full repair manual for code 19677, DCU
19678DCU (Dosing Control Unit)Ambient Air Temperature Sensor Range/PerformanceFull repair manual for code 19678, DCU (Dosing Control Unit)
19679DCU (Dosing Control Unit)Ambient Temperature: SAE J1939 Check for CAN receive signal (Barometric pressure not in range) | P0071 Ambient Air Temperature Sensor Range/PerformanceFull repair manual for code 19679, DCU (Dosing Control Unit)