Case IH fault codes & repair guides
All 9,847 codes· 50 per page · page 71 of 197
| Code | Controller | Issue summary | Repair manual |
|---|---|---|---|
| 3823 | Engine Control Unit (ECU) | Short circuit to ground on Out1 error for H-bridge | Full repair manual for code 3823, Engine Control Unit (ECU) |
| 3824 | Engine Control Unit (ECU) | ENGINE, Throttle Valve Actuator: Short circuit to ground on Out2 TVA Pin A34 error for H-bridge. | Full repair manual for code 3824, Engine Control Unit (ECU) |
| 3825 | Engine Control Unit (ECU) | Throttle Valve Actuator (TVA) Circuit - Short Circuit Over Load Error For H-Bridge | Full repair manual for code 3825, Engine Control Unit (ECU) |
| 3826 | Engine Control Unit (ECU) | Throttle Valve Actuator (TVA) Circuit - Temperature dependent over-current error for H-bridge (power stage) | Full repair manual for code 3826, Engine Control Unit (ECU) |
| 3827 | Engine Control Unit (ECU) | Throttle Valve Actuator (TVA) Circuit - Under Voltage Error For H-Bridge | Full repair manual for code 3827, Engine Control Unit (ECU) |
| 3828 | Engine Control Unit (ECU) | ECU Power stages : Throttle valve actuator power stage: Open load | Full repair manual for code 3828, Engine Control Unit (ECU) |
| 3829 | Engine Control Unit (ECU) / EDC | ECU Power stages : Throttle valve actuator power stage: Over temperature | Full repair manual for code 3829, Engine Control Unit (ECU) / EDC |
| 3830 | ENGINE | Throttle Valve Actuator - DFC for valve position sensor physical SRC high | Full repair manual for code 3830, ENGINE |
| 3830 | Engine Control Unit (ECU) | Intake Valve Position Signal Too High / Throttle Valve Actuator: DFC for valve position sensor physical SRC high | Full repair manual for code 3830, Engine Control Unit (ECU) |
| 3831 | Engine ECU | Intake Valve Position Signal Too Low | Full repair manual for code 3831, Engine ECU |
| 3831 | Engine ECU (EDC) | Throttle Valve Actuator: DFC for valve position sensor physical SRC low / Intake valve position Signal Too Low | Full repair manual for code 3831, Engine ECU (EDC) |
| 3832 | Engine Control Unit (ECU) / EDC (Electronic Diesel Control) | ECU Power stages : Throttle valve actuator power stage: Short circuit to battery error | Full repair manual for code 3832, Engine Control Unit (ECU) / EDC (Electronic Diesel Control) |
| 3833 | Engine Control Unit (ECU) | ECU Power stages : Throttle valve actuator power stage: Short circuit to ground | Full repair manual for code 3833, Engine Control Unit (ECU) |
| 3834 | Engine Control Unit (ECU) | ECU Power stages: Throttle valve actuator power stage: SRC High | Full repair manual for code 3834, Engine Control Unit (ECU) |
| 3835 | Engine Control Unit (ECU) | ECU Power stages: Throttle valve actuator power stage: SRC low. | Full repair manual for code 3835, Engine Control Unit (ECU) |
| 3836 (F-4766-04) | Engine Control Module (ECM) | Downstream oxidation catalyst temperature sensor voltage is lower than expected. | Full repair manual for code 3836 (F-4766-04), Engine Control Module (ECM) |
| 3836 | Engine Control Unit (ECU) / EDC | OxiCat downstream temperature sensor : SRC High | Full repair manual for code 3836, Engine Control Unit (ECU) / EDC |
| 3837 | Engine Control Unit (ECU) | OxiCat downstream temperature sensor : SRC low | Full repair manual for code 3837, Engine Control Unit (ECU) |
| 3838 | Engine Control Module (ECM) | Upstream oxidation catalyst temperature sensor voltage is lower than expected | Full repair manual for code 3838, Engine Control Module (ECM) |
| 3838 (F-4765-04) | Engine Control Module (ECM / ECU) | Upstream oxidation catalyst temperature sensor voltage is lower than expected. | Full repair manual for code 3838 (F-4765-04), Engine Control Module (ECM / ECU) |
| 3838 | Engine Control Module (ECM) / EDC | OxiCat upstream temperature sensor: Diagnostic fault check for SRC high in Oxidation Catalyst upstream temperature | Full repair manual for code 3838, Engine Control Module (ECM) / EDC |
| 3838 (DTC 2999) - ECU | Engine Control Unit (ECU) / Engine Control Module (ECM) | Upstream oxidation catalyst temperature sensor voltage is lower than expected. | Full repair manual for code 3838 (DTC 2999) - ECU, Engine Control Unit (ECU) / Engine Control Module (ECM) |
| 3839 | Engine Control Unit (ECU) | OxiCat upstream temperature sensor: Diagnostic fault check for SRC low in Oxidation Catalyst upstream temperature | Full repair manual for code 3839, Engine Control Unit (ECU) |
| 3840 | ENGINE | Exhaust Gas Temperature 1 Sensor Signal Too High | Full repair manual for code 3840, ENGINE |
| 3840 | Engine Control Unit (ECU) | Temperature Sensor Circuit (T2) Downstream Oxicat - High Error | Full repair manual for code 3840, Engine Control Unit (ECU) |
| 3840 | Engine Control Unit (ECU) | Diesel Particulate filter upstream temperature sensor: Diagnostic fault check for SRC high | Full repair manual for code 3840, Engine Control Unit (ECU) |
| 3841 | Engine Control Unit (ECU) | Diesel Particulate Filter (DPF) Upstream Temperature Sensor: Diagnostic fault check for SRC low | Full repair manual for code 3841, Engine Control Unit (ECU) |
| 3841 | Engine ECU | Temperature Sensor Circuit (T2) Downstream Oxicat - Low Error | Full repair manual for code 3841, Engine ECU |
| 3842 | ENGINE ECU | Turbine upstream temperature sensor: SRC High for turbine upstream temperature sensor | Full repair manual for code 3842, ENGINE ECU |
| 3843 | ENGINE ECU | Turbine upstream temperature sensor: SRC low for turbine upstream temperature sensor | Full repair manual for code 3843, ENGINE ECU |
| 3844 | ENGINE | Fuel Injector 1 Calibration Error or Intake Temperature Sensor Plausibility Error | Full repair manual for code 3844, ENGINE |
| 3844 | ENGINE ECU | Zero Fuel Calibration by Lambda (ZFL): DFC reporting error state on comparing energizing time to Max value injector 1. | Full repair manual for code 3844, ENGINE ECU |
| 3845 | Engine Control Unit (ECU) | Injector - Zero Fuel Calibration by Lambda (ZFL): DFC reporting error state on comparing energizing time to Max value injector 2 | Full repair manual for code 3845, Engine Control Unit (ECU) |
| 3845 | Engine Control Unit (ECU) / EDC | Zero Fuel Calibration by Lambda (ZFL): DFC reporting error state on comparing energizing time to Max value injector 2 | Full repair manual for code 3845, Engine Control Unit (ECU) / EDC |
| 3846 | ENGINE ECU | Injector - Zero Fuel Calibration by Lambda (ZFL): DFC reporting error state on comparing energizing time to Max value injector 3 | Full repair manual for code 3846, ENGINE ECU |
| 3847 | Engine Control Unit (ECU) | Zero Fuel Calibration by Lambda (ZFL) : DFC reporting error state on comparing energizing time to Max value injector 4 | Full repair manual for code 3847, Engine Control Unit (ECU) |
| 3847 | ENGINE ECU / EDC (Electronic Diesel Control) | Injector - Zero Fuel Calibration by Lambda (ZFL): DFC reporting error state on comparing energizing time to Max value injector 4. | Full repair manual for code 3847, ENGINE ECU / EDC (Electronic Diesel Control) |
| 3848 | Engine Control Unit (ECU) | Injector cylinder 1 - energizing time too low | Full repair manual for code 3848, Engine Control Unit (ECU) |
| 3848 | Engine Control Unit (ECU / EDC) | Zero Fuel Calibration by Lambda (ZFL): DFC reporting error state on comparing energizing time to Min value injector 1. | Full repair manual for code 3848, Engine Control Unit (ECU / EDC) |
| 3849 | Engine Control Unit (ECU) | Zero Fuel Calibration by Lambda (ZFL): DFC reporting error state on comparing energizing time to Min value injector 2. | Full repair manual for code 3849, Engine Control Unit (ECU) |
| 3849 | ENGINE ECU (EDC - Electronic Diesel Control module) | Zero Fuel Calibration by Lambda (ZFL): DFC reporting error state on comparing energizing time to Min value injector 2. | Full repair manual for code 3849, ENGINE ECU (EDC - Electronic Diesel Control module) |
| 3850 | Engine Control Unit (ECU) | Zero Fuel Calibration by Lambda (ZFL): DFC reporting error state on comparing energizing time to Min value injector 3. | Full repair manual for code 3850, Engine Control Unit (ECU) |
| 3850 | ENGINE ECU (EDC - Electronic Diesel Control module) | Zero Fuel Calibration by Lambda (ZFL): DFC reporting error state on comparing energizing time to Min value injector 3 | Full repair manual for code 3850, ENGINE ECU (EDC - Electronic Diesel Control module) |
| 3851 | Engine Control Unit (ECU / EDC) | ENGINE, Injector - Zero Fuel Calibration by Lambda (ZFL): DFC reporting error state on comparing energizing time to Minimum value injector 4. | Full repair manual for code 3851, Engine Control Unit (ECU / EDC) |
| 3851 | Engine Control Unit (ECU) / EDC (Electronic Diesel Control) | Zero Fuel Calibration by Lambda (ZFL): DFC reporting error state on comparing energizing time to Min value injector 4 | Full repair manual for code 3851, Engine Control Unit (ECU) / EDC (Electronic Diesel Control) |
| 3852 | Engine Control Unit (ECU) / Electronic Diesel Control (EDC) | Lambda sensor: The maximum allowed time for blow out is exceeded. | Full repair manual for code 3852, Engine Control Unit (ECU) / Electronic Diesel Control (EDC) |
| 3852 | ENGINE ECU | Lambda sensor: The maximum allowed time for blow out is exceeded. | Full repair manual for code 3852, ENGINE ECU |
| 3853 | Engine ECU / EDC (Electronic Diesel Control) | Lambda sensor : Oxygen concentration implausibly high in part load operation. | Full repair manual for code 3853, Engine ECU / EDC (Electronic Diesel Control) |
| 3854 | Engine Control Unit (ECU) / EDC (Electronic Diesel Control) | Lambda sensor : Oxygen concentration implausibly low in full load operation | Full repair manual for code 3854, Engine Control Unit (ECU) / EDC (Electronic Diesel Control) |
| 3855 | EDC (Electronic Diesel Control) | Lambda sensor : Oxygen concentration implausibly low in part load operation | Full repair manual for code 3855, EDC (Electronic Diesel Control) |
