Case IH fault codes & repair guides

All 9,847 codes· 50 per page · page 60 of 197

Case IH fault codes with controller, issue summary and a link to the full repair manual
CodeControllerIssue summaryRepair manual
3432Engine Control Unit (ECU)ENGINE, EGR Inducement WarningFull repair manual for code 3432, Engine Control Unit (ECU)
3432Engine Control Unit (ECU)Exhaust Gas Recirculation (EGR) inducement warningFull repair manual for code 3432, Engine Control Unit (ECU)
3433ENGINEDiesel Particulate Filter (DPF) inducement less severe derating levelFull repair manual for code 3433, ENGINE
3434Engine Control Module (ECM) / Engine ECUDiesel Particulate Filter (DPF): Inducement most severe derating level.Full repair manual for code 3434, Engine Control Module (ECM) / Engine ECU
3434ENGINE ECUDiesel Particulate Filter (DPF): Inducement most severe derating levelFull repair manual for code 3434, ENGINE ECU
3435Engine Control Unit (ECU)Diesel Particulate Filter (DPF) Inducement WarningFull repair manual for code 3435, Engine Control Unit (ECU)
3436 (DTC FBBF) - ECUEngine Control Unit (ECU)Inducement system is locked due to 3 detections in 40 hours.Full repair manual for code 3436 (DTC FBBF) - ECU, Engine Control Unit (ECU)
3437Engine Control Unit (ECU)After run relay low side driver circuit short to ground failureFull repair manual for code 3437, Engine Control Unit (ECU)
3438 (DTC 7A61) - ECUEngine Control Unit (ECU)Auxiliary power relay high side driver circuit short to ground failureFull repair manual for code 3438 (DTC 7A61) - ECU, Engine Control Unit (ECU)
3438Engine Control Unit (ECU A-095)Auxiliary power relay high side driver circuit short to ground failureFull repair manual for code 3438, Engine Control Unit (ECU A-095)
3439Engine Control Unit (ECU) A-095Auxiliary power relay low side driver circuit open failureFull repair manual for code 3439, Engine Control Unit (ECU) A-095
3440Engine Control Unit (ECU)Auxiliary power relay low side ECU driver circuit over temperature failureFull repair manual for code 3440, Engine Control Unit (ECU)
3440Engine Control Unit (ECU A-095)Auxiliary power relay low side ECU driver circuit over temperature failureFull repair manual for code 3440, Engine Control Unit (ECU A-095)
3441Engine Control Unit (ECU) A-095Auxiliary power relay low side driver circuit short to battery failure.Full repair manual for code 3441, Engine Control Unit (ECU) A-095
3442Engine Control Unit (ECU) A-095Auxiliary power relay low side driver circuit short to ground failure.Full repair manual for code 3442, Engine Control Unit (ECU) A-095
3443Engine Control Module (ECM / ECU)Torque limitation due to excessive coolant temperatureFull repair manual for code 3443, Engine Control Module (ECM / ECU)
3443 (F-519867-31) - ECUEngine Control Unit (ECU / ECM)Torque limitation due to excessive coolant temperatureFull repair manual for code 3443 (F-519867-31) - ECU, Engine Control Unit (ECU / ECM)
3444 (F-519868-31) - ECUEngine Control Module (ECM / Engine ECU)Torque limitation due to excessive exhaust gas temperature.Full repair manual for code 3444 (F-519868-31) - ECU, Engine Control Module (ECM / Engine ECU)
3444Engine Control Unit (ECU)Torque limitation due to excessive exhaust gas temperatureFull repair manual for code 3444, Engine Control Unit (ECU)
3445 (F-519869-31) - ECUEngine Control Module (ECM / Engine ECU)Torque limitation due to excessive fuel temperatureFull repair manual for code 3445 (F-519869-31) - ECU, Engine Control Module (ECM / Engine ECU)
3445 (DTC F5A2) - ECUEngine Control Unit (ECU / ECM)Torque limitation due to excessive fuel temperature.Full repair manual for code 3445 (DTC F5A2) - ECU, Engine Control Unit (ECU / ECM)
3445Engine Control Unit (ECU) / Engine Control Module (ECM)Torque limitation due to excessive fuel temperatureFull repair manual for code 3445, Engine Control Unit (ECU) / Engine Control Module (ECM)
3446 (F-519871-31) - ECUEngine Control Module (ECM) / Engine ECUTorque limitation due to excessive intake air temperature.Full repair manual for code 3446 (F-519871-31) - ECU, Engine Control Module (ECM) / Engine ECU
3446 (DTC F6A2) - ECUEngine Control Unit (ECU)Torque limitation due to excessive intake air temperatureFull repair manual for code 3446 (DTC F6A2) - ECU, Engine Control Unit (ECU)
3447 (F-519872-31) - ECUECUTorque limitation due to excessive oil temperatureFull repair manual for code 3447 (F-519872-31) - ECU, ECU
3447 (DTC F7A2) - ECUEngine Control Unit (ECU) / ECMTorque limitation due to excessive oil temperatureFull repair manual for code 3447 (DTC F7A2) - ECU, Engine Control Unit (ECU) / ECM
3447Engine Control Unit (ECU) / Engine Control Module (ECM)Torque limitation due to excessive oil temperature.Full repair manual for code 3447, Engine Control Unit (ECU) / Engine Control Module (ECM)
3448 (F-519873-31) - ECUECUTorque limitation due to turbocharger protection after startFull repair manual for code 3448 (F-519873-31) - ECU, ECU
3448 (DTC F8A2) - ECUEngine Control Module (ECM / ECU)Torque limitation due to turbocharger protection after startFull repair manual for code 3448 (DTC F8A2) - ECU, Engine Control Module (ECM / ECU)
3448Engine Control Unit (ECU / ECM)Torque limitation due to turbocharger protection after startFull repair manual for code 3448, Engine Control Unit (ECU / ECM)
3449Engine Control Unit (ECU)Diagnostic fault check to report the engine speed error / ECM internal failure - Calculated engine speedFull repair manual for code 3449, Engine Control Unit (ECU)
3449 (DTC E812) - ECUEngine Control Unit (ECU)ECU internal failure - Calculated engine speedFull repair manual for code 3449 (DTC E812) - ECU, Engine Control Unit (ECU)
3450Engine Control Unit (ECU) / EDCeVGT (Electronic Variable Geometry Turbocharger) actuator is blockedFull repair manual for code 3450, Engine Control Unit (ECU) / EDC
3451EDC (Electronic Diesel Control) / Engine Control Unit (ECU)The fuel main filter cartridge is worn and should be replaced, but is not yet in a critical state.Full repair manual for code 3451, EDC (Electronic Diesel Control) / Engine Control Unit (ECU)
3452Engine Control Unit (ECU)Fuel main filter cartridge severely cloggedFull repair manual for code 3452, Engine Control Unit (ECU)
3453Engine Control Module (ECM / Engine ECU)Fuel filter clog or circuit failureFull repair manual for code 3453, Engine Control Module (ECM / Engine ECU)
3453Engine Control Unit (ECU) / Engine Data Controller (EDC)Fuel filter clogged warning activatedFull repair manual for code 3453, Engine Control Unit (ECU) / Engine Data Controller (EDC)
3454Engine Control Unit (ECU / ENG)Fuel filter switch is failedFull repair manual for code 3454, Engine Control Unit (ECU / ENG)
3454Engine Control Unit (ECU) / Engine ControllerPlausible sensor failure related to the fuel filter restriction sensor/switchFull repair manual for code 3454, Engine Control Unit (ECU) / Engine Controller
3455Engine Control Unit (ECU)Fuel pre-filter clog or circuit failureFull repair manual for code 3455, Engine Control Unit (ECU)
3456Engine Control Module (ECM) / Engine Control Unit (ECU)Charge air cooler efficiency is too lowFull repair manual for code 3456, Engine Control Module (ECM) / Engine Control Unit (ECU)
3457ECUIntake Manifold Temp Sensor Voltage HighFull repair manual for code 3457, ECU
3457 (DTC 1374) - ECUEngine Control Module (ECM / Engine ECU)Intake manifold temperature sensor voltage is higher than expected.Full repair manual for code 3457 (DTC 1374) - ECU, Engine Control Module (ECM / Engine ECU)
3457 (F-105-03)Engine Control Unit (ECU) / Engine Control Module (ECM)Intake manifold temperature sensor voltage is higher than expected.Full repair manual for code 3457 (F-105-03), Engine Control Unit (ECU) / Engine Control Module (ECM)
3458Engine Control Module (ECM / ECU)Crankcase pressure too highFull repair manual for code 3458, Engine Control Module (ECM / ECU)
3458Engine Control Unit (ECU)Crankcase pressure too highFull repair manual for code 3458, Engine Control Unit (ECU)
3459 (F-175-15) - ECUEngine Control Unit (ECU)Engine oil temperature too highFull repair manual for code 3459 (F-175-15) - ECU, Engine Control Unit (ECU)
3459 (DTC 1BD3) - ECUEngine Control Unit (ECU) / UCM2 (Engine)Oil temperature too highFull repair manual for code 3459 (DTC 1BD3) - ECU, Engine Control Unit (ECU) / UCM2 (Engine)
3460Engine Control Unit (ECU)Oil temperature too lowFull repair manual for code 3460, Engine Control Unit (ECU)
3460 (F-175-18) - ECUEngine Control Unit (ECU) / Engine Control Module (ECM)Engine oil temperature too lowFull repair manual for code 3460 (F-175-18) - ECU, Engine Control Unit (ECU) / Engine Control Module (ECM)