Case IH fault codes & repair guides
All 9,847 codes· 50 per page · page 67 of 197
| Code | Controller | Issue summary | Repair manual |
|---|---|---|---|
| 3715 | ENGINE Controller | Lambda sensor: SRC Low error for O2 calibration | Full repair manual for code 3715, ENGINE Controller |
| 3715 | Engine Control Unit (Engine ECU / EDC) | Lambda sensor: Fault code to indicate SRC Low error for O2 calibration | Full repair manual for code 3715, Engine Control Unit (Engine ECU / EDC) |
| 3716 | Engine Control Unit (ECU) | Lambda sensor: O2 value above the max threshold. | Full repair manual for code 3716, Engine Control Unit (ECU) |
| 3716 | Engine Control Unit (ECU) / Electronic Diesel Control (EDC) or Aftertreatment Control Module | Lambda sensor: O2 value above the max threshold / DPF Active Regeneration Inhibited Due to Engine Not Warmed Up | Full repair manual for code 3716, Engine Control Unit (ECU) / Electronic Diesel Control (EDC) or Aftertreatment Control Module |
| 3717 | Engine Control Module (ECM) / EDC (Electronic Diesel Control) | Lambda sensor : Oxygen concentration implausibly high in overrun | Full repair manual for code 3717, Engine Control Module (ECM) / EDC (Electronic Diesel Control) |
| 3718 | Engine Control Unit (ECU) / Electronic Diesel Control (EDC) | Lambda sensor : Oxygen concentration implausibly low in overrun | Full repair manual for code 3718, Engine Control Unit (ECU) / Electronic Diesel Control (EDC) |
| 3719 | Engine Control Module (ECM) | Fault check for sigma exceeding maximum limit | Full repair manual for code 3719, Engine Control Module (ECM) |
| 3720 | Engine Control Unit (ECU) | Lambda sensor: Low battery voltage at the SPI chip | Full repair manual for code 3720, Engine Control Unit (ECU) |
| 3721 | Engine Control Unit (ECU / EDC) | Lambda sensor: Fault check to indicate SPI chip error of lambda sensor | Full repair manual for code 3721, Engine Control Unit (ECU / EDC) |
| 3721 | Engine ECU / Planter UCM | Lambda Sensor SPI Chip Error / Row Lift Proximity Switch Failure | Full repair manual for code 3721, Engine ECU / Planter UCM |
| 3722 | ENGINE | Lambda Sensor: LSU sensor temperature Ri exceeds the maximum limit. | Full repair manual for code 3722, ENGINE |
| 3722 | Engine Control Unit (ECU) | Lambda sensor: LSU sensor temperature Ri exceeds the maximum limit | Full repair manual for code 3722, Engine Control Unit (ECU) |
| 3723 | ENGINE (EDC - Electronic Diesel Control unit) | Lambda sensor: LSU sensor temperature Ri is below the minimum limit | Full repair manual for code 3723, ENGINE (EDC - Electronic Diesel Control unit) |
| 3724 | ENGINE | Lambda Sensor: Short to Battery at IA, IP, UN, VG | Full repair manual for code 3724, ENGINE |
| 3724 | Engine Control Unit (ECU) | Lambda sensor: short to battery at IA, IP, UN, VG | Full repair manual for code 3724, Engine Control Unit (ECU) |
| 3725 | ECU / ECM | Lambda or Intake NOx Sensor Fault | Full repair manual for code 3725, ECU / ECM |
| 3725 | Engine Control Unit (ECU) | Lambda sensor: short to ground at IA, IP, UN, VG. | Full repair manual for code 3725, Engine Control Unit (ECU) |
| 3726 | EDC (Electronic Diesel Control) / Engine Control Module (ECM) | Fuel in oil detection : DFC to indicate that the fuel in oil has exceeded the Maximum limit. | Full repair manual for code 3726, EDC (Electronic Diesel Control) / Engine Control Module (ECM) |
| 3727 | Engine Control Unit (ECU) | Poor Oil Quality Detected - Amber Lamp Level | Full repair manual for code 3727, Engine Control Unit (ECU) |
| 3728 | Engine Control Unit (ECU) | Poor Oil Quality Detected - Red Lamp Level | Full repair manual for code 3728, Engine Control Unit (ECU) |
| 3729 | Engine ECU / EDC (Electronic Diesel Control) | Fuel in oil detection : DFC to indicate that the fuel in oil has exceeded the warning limit. | Full repair manual for code 3729, Engine ECU / EDC (Electronic Diesel Control) |
| 3730 | Engine Control Unit (ECU) | Soot in oil detection : DFC to indicate that the Soot in oil has exceeded the Max limit | Full repair manual for code 3730, Engine Control Unit (ECU) |
| 3731 | Engine Control Unit (ECU) / EDC (Electronic Diesel Control) | PTO switch : Diagnostic fault check for signal error of COM message | Full repair manual for code 3731, Engine Control Unit (ECU) / EDC (Electronic Diesel Control) |
| 3732 | Engine Data Controller (EDC) / Engine Control Unit (ECU) | PTO switch : Diagnostic fault check for max error of COM message | Full repair manual for code 3732, Engine Data Controller (EDC) / Engine Control Unit (ECU) |
| 3733 | Engine Control Unit (ECU) / Electronic Diesel Control (EDC) | PTO switch : Diagnostic fault check for min error of COM message | Full repair manual for code 3733, Engine Control Unit (ECU) / Electronic Diesel Control (EDC) |
| 3734 | Engine Control Unit (ECU) / CNH EDC | PTO switch : Diagnostic fault check non plausibility of COM message. | Full repair manual for code 3734, Engine Control Unit (ECU) / CNH EDC |
| 3735 (DTC 8355) - ECU | Engine Control Unit (ECU) | Fuel metering unit has an over-temperature error | Full repair manual for code 3735 (DTC 8355) - ECU, Engine Control Unit (ECU) |
| 3735 | Engine Control Unit (ECU) / EDC | Fuel Metering Unit Circuit. - Over Temperature Of Device Driver Of Metering Unit | Full repair manual for code 3735, Engine Control Unit (ECU) / EDC |
| 3736 | ENGINE | Lambda sensor: O2 concentration is outside the predefined window during Heater coupling detection. | Full repair manual for code 3736, ENGINE |
| 3736 | Engine Control Unit (ECU) / EDC (Electronic Diesel Control) | Lambda sensor: O2 concentration is outside the predefined window during Heater coupling detection. | Full repair manual for code 3736, Engine Control Unit (ECU) / EDC (Electronic Diesel Control) |
| 3737 | Engine Control Unit (ECU) / EDC (Electronic Diesel Control) | Lambda sensor: Over temperature error of the LSU Heater Power stage | Full repair manual for code 3737, Engine Control Unit (ECU) / EDC (Electronic Diesel Control) |
| 3737 | Engine Control Unit (EDC / ECM) | Lambda Sensor: Over temperature error of the LSU Heater Power stage | Full repair manual for code 3737, Engine Control Unit (EDC / ECM) |
| 3738 | Engine Control Module (ECM) / Electronic Diesel Control (EDC) | Analog Digital Converter (ADC) diagnostic fault check reporting multiple errors while checking the complete ROM-memory | Full repair manual for code 3738, Engine Control Module (ECM) / Electronic Diesel Control (EDC) |
| 3738 (DTC E71D) - ECU | Engine Control Unit (ECU) | ECU internal failure - ROM error | Full repair manual for code 3738 (DTC E71D) - ECU, Engine Control Unit (ECU) |
| 3739 | Engine Control Module (ECM) / EDC | ECM Internal Error. If EDC Replaced, Follow The Appropriate Service Tool Procedure To Restore Self Learning Parameters. | Full repair manual for code 3739, Engine Control Module (ECM) / EDC |
| 3739 | Engine Control Module (ECM) / Electronic Diesel Control (EDC) | Power stages, Injector: Loss of synchronization sending bytes to the MM from CPU | Full repair manual for code 3739, Engine Control Module (ECM) / Electronic Diesel Control (EDC) |
| 3739 (DTC E13D) - ECU | Engine Control Unit (ECU) / Electronic Diesel Control (EDC) | ECU internal failure - Loss of synchronization to MM from CPU | Full repair manual for code 3739 (DTC E13D) - ECU, Engine Control Unit (ECU) / Electronic Diesel Control (EDC) |
| 3740 (DTC E23D) - ECU | Engine Control Unit (ECU) | ECU internal failure - ECU shutdown test failure | Full repair manual for code 3740 (DTC E23D) - ECU, Engine Control Unit (ECU) |
| 3740 | Engine Control Unit (ECU) / EDC | Injector Circuit Error | Full repair manual for code 3740, Engine Control Unit (ECU) / EDC |
| 3740 | Engine ECU / EDC (Electronic Diesel Control) | Power stages, Injector: DFC to set a torque limitation once an error is detected before MoCSOP's error reaction is set | Full repair manual for code 3740, Engine ECU / EDC (Electronic Diesel Control) |
| 3741 | Engine Control Module (ECM) | ECM Internal Error | Full repair manual for code 3741, Engine Control Module (ECM) |
| 3741 (DTC E33D) - ECU | Engine Control Unit (ECU) | ECU internal failure - Wrong set response time | Full repair manual for code 3741 (DTC E33D) - ECU, Engine Control Unit (ECU) |
| 3741 | ENGINE ECU / EDC (Electronic Diesel Control) | EDC - Power stages, Injector: Wrong set response time | Full repair manual for code 3741, ENGINE ECU / EDC (Electronic Diesel Control) |
| 3742 (DTC E43D) - ECU | ECU | ECU Internal Failure SPI Errors | Full repair manual for code 3742 (DTC E43D) - ECU, ECU |
| 3742 | Engine Control Module (ECM) / Electronic Diesel Control (EDC) | ECM Internal Error. If EDC Replaced, Follow The Appropriate Service Tool Procedure To Restore Self Learning Parameters. | Full repair manual for code 3742, Engine Control Module (ECM) / Electronic Diesel Control (EDC) |
| 3742 | Engine Control Unit (ECU) / Electronic Diesel Control (EDC) | Power stages, Injector: Too many SPI errors during MoCSOP execution | Full repair manual for code 3742, Engine Control Unit (ECU) / Electronic Diesel Control (EDC) |
| 3743 (DTC E53D) - ECU | Engine Control Unit (ECU) | ECU internal failure - Undervoltage monitoring error | Full repair manual for code 3743 (DTC E53D) - ECU, Engine Control Unit (ECU) |
| 3743 | Engine Control Unit (ECU) / Electronic Diesel Control (EDC) | EDC Internal Failure (Injectors Power Stage) - Error In Undervoltage Monitoring | Full repair manual for code 3743, Engine Control Unit (ECU) / Electronic Diesel Control (EDC) |
| 3744 | EDC (Electronic Diesel Control) | EDC Internal Failure (Injectors Power Stage) - Error In Overvoltage Monitoring | Full repair manual for code 3744, EDC (Electronic Diesel Control) |
| 3745 (DTC E63D) - ECU | Engine Control Unit (ECU) / Electronic Diesel Control (EDC) | ECU internal failure - WDA is not working correctly | Full repair manual for code 3745 (DTC E63D) - ECU, Engine Control Unit (ECU) / Electronic Diesel Control (EDC) |
