Case IH fault codes & repair guides
All 9,847 codes· 50 per page · page 59 of 197
| Code | Controller | Issue summary | Repair manual |
|---|---|---|---|
| 3384 | Engine Control Module (ECM) / EDC (Electronic Diesel Control) | Vistronic Engine Cooling Fan driver open or short circuit | Full repair manual for code 3384, Engine Control Module (ECM) / EDC (Electronic Diesel Control) |
| 3385 | Engine Control Unit (ECU) | Viscous fan actuation driver solenoid circuit - open circuit or short to ground | Full repair manual for code 3385, Engine Control Unit (ECU) |
| 3390 | Engine Controller (ECM / EDC) | Viscous fan speed not detected. | Full repair manual for code 3390, Engine Controller (ECM / EDC) |
| 3390 | Universal Control Module (UCM), Instrument Cluster (IC), and Engine Control Unit (ECU) | Air Filter Restriction Switch Short To Ground | Full repair manual for code 3390, Universal Control Module (UCM), Instrument Cluster (IC), and Engine Control Unit (ECU) |
| 3399 | Engine Controller (ENG / ECU / EDC) | Engine Fuel Lift Pump relay driver over current fault | Full repair manual for code 3399, Engine Controller (ENG / ECU / EDC) |
| 3400 | Engine Control Unit (ECU) / EDC (Electronic Diesel Control) | Lambda sensor : Lambda Sensor inner Resistance calibration value too High | Full repair manual for code 3400, Engine Control Unit (ECU) / EDC (Electronic Diesel Control) |
| 3401 | Engine Control Unit (ECU) / Electronic Diesel Control (EDC) module | Lambda sensor : Lambda Sensor inner Resistance calibration value too Low | Full repair manual for code 3401, Engine Control Unit (ECU) / Electronic Diesel Control (EDC) module |
| 3402 | Engine Controller (Engine ECU / EDC - Electronic Diesel Control) | Rail Fuel Pressure Too High - Maximum Rail Pressure Exceeded | Full repair manual for code 3402, Engine Controller (Engine ECU / EDC - Electronic Diesel Control) |
| 3402 | Engine Control Unit (ECU) | Rail pressure sensor: maximum rail pressure exceeded | Full repair manual for code 3402, Engine Control Unit (ECU) |
| 3403 (DTC 8A22) - ECU | Electronic Control Unit (ECU) | Starter relay low side ECU driver circuit over temperature failure | Full repair manual for code 3403 (DTC 8A22) - ECU, Electronic Control Unit (ECU) |
| 3403 | Engine Controller | Engine Controller Starter Relay Circuit Low Side Driver - Power Stage Overtemperature | Full repair manual for code 3403, Engine Controller |
| 3403 | Engine Controller (EDC / ECU) | Engine Controller Starter Relay Circuit Low Side Driver / HS Power Stage Overtemperature | Full repair manual for code 3403, Engine Controller (EDC / ECU) |
| 3404 | Engine ECU (EDC) | Charge Air cooler : Signal error for Charge air cooler downstream Temperature | Full repair manual for code 3404, Engine ECU (EDC) |
| 3405 | Engine Control Unit (ECU) / EDC | ECU Power stages: Open load temperature error on the Turbocharger PWM output power stage. | Full repair manual for code 3405, Engine Control Unit (ECU) / EDC |
| 3406 | Engine Controller / EDC | Engine Controller Waste Gate Turbocharger Actuator Circuit - Power Stage Overtemperature | Full repair manual for code 3406, Engine Controller / EDC |
| 3407 | EDC (Electronic Diesel Control) / Engine ECU | CAN Bus: Timeout Error of CAN-Transmit-Frame EDC to NOx Sensor | Full repair manual for code 3407, EDC (Electronic Diesel Control) / Engine ECU |
| 3408 | Engine Control Unit (ECU) / EDC (Electronic Diesel Control) | Lambda Sensor: Oxygen Concentration Implausibly High | Full repair manual for code 3408, Engine Control Unit (ECU) / EDC (Electronic Diesel Control) |
| 3408 | Engine ECU | Lambda sensor: Oxygen concentration implausibly high | Full repair manual for code 3408, Engine ECU |
| 3409 | Engine Control Module (ECM) | Oil pressure sensor : Defect fault check for minimum oil pressure from sensor | Full repair manual for code 3409, Engine Control Module (ECM) |
| 3410 | Engine Controller | Desired Throttle Valve Actuator (TVA) Position Can Not Be Reached (Valve Sticks, Position Sensor Mismatched) | Full repair manual for code 3410, Engine Controller |
| 3411 | Engine Control Unit (ECU) / Electronic Diesel Control (EDC) | Desired Throttle Valve Actuator (TVA) Position Can Not Be Reached (Valve Sticks, Position Sensor Mismatched) | Full repair manual for code 3411, Engine Control Unit (ECU) / Electronic Diesel Control (EDC) |
| 3412 | Engine Control Unit (ECU) / EDC (Electronic Diesel Control) | Speed limitation activates torque limitation | Full repair manual for code 3412, Engine Control Unit (ECU) / EDC (Electronic Diesel Control) |
| 3413 | Engine Control Unit (ECU) / EDC (Electronic Diesel Control) | Overheat protection activates torque limitation | Full repair manual for code 3413, Engine Control Unit (ECU) / EDC (Electronic Diesel Control) |
| 3414 | Engine Control Unit (ECU) / Glow Plug Control Unit (GCU) | Short circuit in cylinder 1 glow plug | Full repair manual for code 3414, Engine Control Unit (ECU) / Glow Plug Control Unit (GCU) |
| 3415 | Engine Controller (EDC / Engine ECU) | Short Circuit In Glow Plugs - Cyl. 2 | Full repair manual for code 3415, Engine Controller (EDC / Engine ECU) |
| 3416 | Engine Controller (Engine ECU / EDC) | Short Circuit In Glow Plugs - Cyl.3 | Full repair manual for code 3416, Engine Controller (Engine ECU / EDC) |
| 3417 | Engine Controller (Engine ECU) | Short Circuit In Glow Plugs - Cyl. 4 | Full repair manual for code 3417, Engine Controller (Engine ECU) |
| 3418 | Engine Control Unit (ECU) | ECU Power stages: SCB error on the Turbocharger PWM output power stage | Full repair manual for code 3418, Engine Control Unit (ECU) |
| 3419 | Engine Control Unit (Engine ECU / EDC) | Turbocharger - ECU Power stages: SCG error on the Turbocharger PWM output power stage | Full repair manual for code 3419, Engine Control Unit (Engine ECU / EDC) |
| 3420 | ENGINE | CAN Bus Communication - CAN Bus Received Frames: DFC of Auxiliary Engine Shutdown Switch Message | Full repair manual for code 3420, ENGINE |
| 3420 | ENGINE Control Module (ECM / EDC) | CAN Bus Received frames: DFC of Auxiliary Engine Shutdown Switch Message | Full repair manual for code 3420, ENGINE Control Module (ECM / EDC) |
| 3421 | ENGINE | Fuel Filter Sensor: Voltage Above Max Value | Full repair manual for code 3421, ENGINE |
| 3421 | ENGINE ECU | Fuel Filter Sensor: Voltage Above Max Value | Full repair manual for code 3421, ENGINE ECU |
| 3422 | ENGINE ECU | Fuel Filter Sensor: Voltage Below Minimum Value | Full repair manual for code 3422, ENGINE ECU |
| 3423 | Engine Control Unit (ECU) | Fuel Filter Sensor: Implausible Value | Full repair manual for code 3423, Engine Control Unit (ECU) |
| 3423 | Engine ECU | Fuel Filter Sensor: Implausible Value | Full repair manual for code 3423, Engine ECU |
| 3424 | ENGINE | Fuel Filter Clogged | Full repair manual for code 3424, ENGINE |
| 3424 | Engine Control Unit (ECU) / Engine Control Module (ECM) | ENGINE, Fuel Filter Clogged | Full repair manual for code 3424, Engine Control Unit (ECU) / Engine Control Module (ECM) |
| 3425 | Engine Control Unit (ECU) A-095 | Under boost failure | Full repair manual for code 3425, Engine Control Unit (ECU) A-095 |
| 3425 (DTC 1438) - ECU | Engine ECU | Under boost failure | Full repair manual for code 3425 (DTC 1438) - ECU, Engine ECU |
| 3425 | ENGINE ECU | Turbocharger: Over boost deviation at P2 too high in pressure charger regulator | Full repair manual for code 3425, ENGINE ECU |
| 3426 | ENGINE Control Module (Engine ECU) | Diesel Particulate Filter (DPF): Level 1 of Particulate Filter Overloaded / Low efficiency in DPF filter / DPF Differential Pressure Too Low | Full repair manual for code 3426, ENGINE Control Module (Engine ECU) |
| 3426 | Engine Control Unit (ECU) | Diesel Particulate Filter (DPF): Level 1 of Particulate Filter Overloaded | Full repair manual for code 3426, Engine Control Unit (ECU) |
| 3427 | Engine Control Unit (ECU) | Diesel particulate filter (DPF): Signal range check flow resistance of the particulate filter - low. | Full repair manual for code 3427, Engine Control Unit (ECU) |
| 3428 | Engine Control Unit (ECU) / EDC (Electronic Diesel Control) | Diesel Particulate Filter (DPF) Pressure sensor: Not Plausibility Error | Full repair manual for code 3428, Engine Control Unit (ECU) / EDC (Electronic Diesel Control) |
| 3429 | Engine Control Unit (ECU) / Engine Controller | Differential Pressure Hoseline Failure (e.g. Due To Leakage) - Check Hoseline Integrity. Check Sensor. | Full repair manual for code 3429, Engine Control Unit (ECU) / Engine Controller |
| 3430 | Engine Control Unit (ECU) / Electronic Diesel Control (EDC) | EGR Inducement less severe derating level | Full repair manual for code 3430, Engine Control Unit (ECU) / Electronic Diesel Control (EDC) |
| 3430 | ENGINE ECU (EDC) | EGR Inducement Less Severe Derating Level | Full repair manual for code 3430, ENGINE ECU (EDC) |
| 3431 | Engine Control Unit (ECU) / Engine Controller | EGR Inducement most severe derating level | Full repair manual for code 3431, Engine Control Unit (ECU) / Engine Controller |
| 3431 | ENGINE ECU | EGR Inducement most severe derating level | Full repair manual for code 3431, ENGINE ECU |
