Case IH fault codes & repair guides
All 9,847 codes· 50 per page · page 36 of 197
| Code | Controller | Issue summary | Repair manual |
|---|---|---|---|
| 2400 | Transmission Controller (TCM) / Gear Control Module (GCM2) | Low / high range synchronizer not calibrated or bad calibration | Full repair manual for code 2400, Transmission Controller (TCM) / Gear Control Module (GCM2) |
| 2401 | TCU (Tractor Control Unit) | FNRP enable short to ground | Full repair manual for code 2401, TCU (Tractor Control Unit) |
| 2401 | Transmission Control Unit (TCU) / Central Control Unit (CCU) | Medium / reverse range synchronizer not calibrated or bad calibration | Full repair manual for code 2401, Transmission Control Unit (TCU) / Central Control Unit (CCU) |
| 2402 | Transmission Control Unit (TCU) | Upshift and downshift switches both closed | Full repair manual for code 2402, Transmission Control Unit (TCU) |
| 2402 | Transmission Control Unit (TRANS) | FNRP enable LSD short to power | Full repair manual for code 2402, Transmission Control Unit (TRANS) |
| 2403 | TCU | Range Shift Synchronizer Engagement Failure | Full repair manual for code 2403, TCU |
| 2404 (519376.12) - DEC | DEC | Wrong Direction detected (forward) | Full repair manual for code 2404 (519376.12) - DEC, DEC |
| 2405 | Transmission Controller (TCU / Transmission ECU) | Range shift synchronizer did not disengage | Full repair manual for code 2405, Transmission Controller (TCU / Transmission ECU) |
| 2406 (519377.12) - DEC | Transmission Control Unit (TCU) | Wrong Direction detected (reverse) | Full repair manual for code 2406 (519377.12) - DEC, Transmission Control Unit (TCU) |
| 2407 | Transmission Control Unit (TCU) | Range shift synchroniser did not engage during a shuttle shift. | Full repair manual for code 2407, Transmission Control Unit (TCU) |
| 2409 (519378.12) | Transmission Control Module (TCM), RHM (Right Hand Module), or CCM (Combine Control Module) | Transmission Lockup | Full repair manual for code 2409 (519378.12), Transmission Control Module (TCM), RHM (Right Hand Module), or CCM (Combine Control Module) |
| 2410 | Transmission Control Unit (TCU) | Synchroniser did not disengage during a shuttle shift | Full repair manual for code 2410, Transmission Control Unit (TCU) |
| 2412 | Transmission Control Module (Transmission ECU) | Synchroniser did not engage previous range after error code 2403 or 2405 | Full repair manual for code 2412, Transmission Control Module (Transmission ECU) |
| 2413 | TCU | Synchroniser Disengaged Without Driver Initiation | Full repair manual for code 2413, TCU |
| 2414 | Transmission Control Unit (TCU) | Disable range selected by operator | Full repair manual for code 2414, Transmission Control Unit (TCU) |
| 2415 | Transmission Control Unit (CCU / UCM) | Medium / reverse range synchronizer potentiometer - voltage too high. | Full repair manual for code 2415, Transmission Control Unit (CCU / UCM) |
| 2416 | Transmission Control Unit (TCU) or Central Control Unit (CCU) | Medium / reverse range synchronizer potentiometer - voltage too low | Full repair manual for code 2416, Transmission Control Unit (TCU) or Central Control Unit (CCU) |
| 2417 | Transmission Control Unit (TCU) / Central Control Unit (CCU) / Semi-Powershift (SPS) Controller | Low / high range synchronizer potentiometer - voltage too high | Full repair manual for code 2417, Transmission Control Unit (TCU) / Central Control Unit (CCU) / Semi-Powershift (SPS) Controller |
| 2418 | CCU | Dump clutch switch short to ground | Full repair manual for code 2418, CCU |
| 2418 | Transmission Control Unit | Low / high range synchronizer potentiometer - voltage too low | Full repair manual for code 2418, Transmission Control Unit |
| 2419 | Transmission Control Module (TCM) | Medium / reverse range synchronizer potentiometer voltage is out of calibrated range. | Full repair manual for code 2419, Transmission Control Module (TCM) |
| 2419 | Transmission Control Unit (TCU) / Multicontroller ECU | Reactivity switch disagreement | Full repair manual for code 2419, Transmission Control Unit (TCU) / Multicontroller ECU |
| 2420 | CCU (Central Control Unit) | Low / high range synchronizer potentiometer - voltage is out of calibrated range | Full repair manual for code 2420, CCU (Central Control Unit) |
| 2423 | Transmission Control Unit (TCU) / Transmission Processor | Proper ratio not detected | Full repair manual for code 2423, Transmission Control Unit (TCU) / Transmission Processor |
| 2425 | Transmission Controller (TCU / Transmission ECU) | Attempted to select a disabled range | Full repair manual for code 2425, Transmission Controller (TCU / Transmission ECU) |
| 2426-03 - UCM | UCM | Auto depth control position feedback sensor - Voltage Above Normal, or Shorted to High Source | Full repair manual for code 2426-03 - UCM, UCM |
| 2426-04 - UCM | UCM | Auto depth control position feedback voltage high | Full repair manual for code 2426-04 - UCM, UCM |
| 2426-07 - UCM | UCM | Auto depth control position feedback deviation | Full repair manual for code 2426-07 - UCM, UCM |
| 2429 | CCU / TCU | Creeper switch always on | Full repair manual for code 2429, CCU / TCU |
| 2430 | Transmission Controller (TCU) or Central Control Unit (CCU) | Creeper unit switch voltage too low | Full repair manual for code 2430, Transmission Controller (TCU) or Central Control Unit (CCU) |
| 2431 | CCU | Creeper switch voltage too high | Full repair manual for code 2431, CCU |
| 2432 | CCU | Voltage from gear 3-4 neutral switch too high | Full repair manual for code 2432, CCU |
| 2433 | CCU (Chassis Control Unit) | Voltage from gear 3-4 neutral switch too low | Full repair manual for code 2433, CCU (Chassis Control Unit) |
| 2438 | CCU | Voltage from R3 switch too high | Full repair manual for code 2438, CCU |
| 2439 | CCU | Voltage from R3 switch too low | Full repair manual for code 2439, CCU |
| 2447 (160.02) - DEC | ECU (Electronic Control Unit) or Transmission Control Module | Hydro Out Speed Sensor - Signal wire shortcut to GND | Full repair manual for code 2447 (160.02) - DEC, ECU (Electronic Control Unit) or Transmission Control Module |
| 2450 | CCU (Chassis Control Unit) | Creeper configuration: mismatch error | Full repair manual for code 2450, CCU (Chassis Control Unit) |
| 2453 (519286.12) - DEC | DEC | Full repair manual for code 2453 (519286.12) - DEC, DEC | |
| 2454 (519287.12) - DEC | Engine Control Module (ECM) or Powertrain Control Module (PCM) | Diesel Particulate Filter (DPF) Differential Pressure Sensor "A" Circuit Low | Full repair manual for code 2454 (519287.12) - DEC, Engine Control Module (ECM) or Powertrain Control Module (PCM) |
| 2455 (519288.12) - DEC | DEC | eMGS2 communication error - ECU internal error | Full repair manual for code 2455 (519288.12) - DEC, DEC |
| 2459 - UCM | UCM | UCM: DEC ECU missing | Full repair manual for code 2459 - UCM, UCM |
| 2460 - UCM | UCM | Shuttle lever R1 switch voltage too high | Full repair manual for code 2460 - UCM, UCM |
| 2461 - UCM | UCM | Shuttle lever R1 switch voltage too low. | Full repair manual for code 2461 - UCM, UCM |
| 2464 - UCM | UCM / CCU | Shuttle lever R3 switch voltage too high | Full repair manual for code 2464 - UCM, UCM / CCU |
| 2465 | CCU (Central Control Unit) or Transmission TCU (Transmission Control Unit) | Shuttle lever R3 switch voltage too low | Full repair manual for code 2465, CCU (Central Control Unit) or Transmission TCU (Transmission Control Unit) |
| 2466 - UCM | UCM | Shuttle lever C1 switch voltage too high | Full repair manual for code 2466 - UCM, UCM |
| 2467 - UCM | UCM | Shuttle lever C1 switch voltage too low | Full repair manual for code 2467 - UCM, UCM |
| 2468 - UCM | UCM | Shuttle lever C2 switch voltage too high | Full repair manual for code 2468 - UCM, UCM |
| 2469 - UCM | UCM | Shuttle lever C2 switch voltage too low. | Full repair manual for code 2469 - UCM, UCM |
| 2470 - UCM | UCM | Shuttle lever C3 switch voltage too high | Full repair manual for code 2470 - UCM, UCM |
