Case IH fault codes & repair guides
All 9,847 codes· 50 per page · page 33 of 197
| Code | Controller | Issue summary | Repair manual |
|---|---|---|---|
| 2303 | Transmission Control Unit (TCU) or Chassis Control Module (CCM) | Damper calibration - low error | Full repair manual for code 2303, Transmission Control Unit (TCU) or Chassis Control Module (CCM) |
| 2304 | Transmission Control Module (TCM) | Damper calibration - high error | Full repair manual for code 2304, Transmission Control Module (TCM) |
| 2305 | Transmission ECU | 19th gear clutch solenoid over voltage | Full repair manual for code 2305, Transmission ECU |
| 2306 | Transmission Control Module | 19th gear clutch dump solenoid over voltage | Full repair manual for code 2306, Transmission Control Module |
| 2307-02 - UCM | UCM | UCM: Front pilot head #3 reporting loss of communication with vehicle controller | Full repair manual for code 2307-02 - UCM, UCM |
| 2307-03 - UCM | UCM | Front pilot head #3 reporting supply voltage high | Full repair manual for code 2307-03 - UCM, UCM |
| 2307-04 - UCM | UCM | Front Pilot Head #3 Supply Voltage Low | Full repair manual for code 2307-04 - UCM, UCM |
| 2307-07 - UCM | UCM | Front Pilot Head #3 Spool Valve Stuck | Full repair manual for code 2307-07 - UCM, UCM |
| 2307-12 - UCM | UCM | Front Pilot Head #3 Internal Controller Fault | Full repair manual for code 2307-12 - UCM, UCM |
| 2307-19 - UCM | UCM | CAN bus communication loss with #3 front hydraulic remote valve pilot head | Full repair manual for code 2307-19 - UCM, UCM |
| 2308 | Transmission Control Module | Reverse not allowed | Full repair manual for code 2308, Transmission Control Module |
| 2308-02 - UCM | UCM | Vehicle controller loss of communication with front pilot head #3 | Full repair manual for code 2308-02 - UCM, UCM |
| 2310 | Transmission Control Unit (TCU) | Upshift switch - voltage too low | Full repair manual for code 2310, Transmission Control Unit (TCU) |
| 2311 | ENG | Electronic Fuel Injection Control Valve open or closed Circuit | Full repair manual for code 2311, ENG |
| 2311 | Transmission Control Module (TCM) or Armrest Unit (ARU) / MultiControl Armrest controller | Upshift switch - voltage too high | Full repair manual for code 2311, Transmission Control Module (TCM) or Armrest Unit (ARU) / MultiControl Armrest controller |
| 2312 | Transmission Control Module (TCU) | Downshift switch - voltage too low | Full repair manual for code 2312, Transmission Control Module (TCU) |
| 2313 | Transmission Control Module (TCU) | Downshift switch - voltage too high | Full repair manual for code 2313, Transmission Control Module (TCU) |
| 2314 | Transmission Control Module (TCU) | Forward pressure switch - open circuit or short to ground | Full repair manual for code 2314, Transmission Control Module (TCU) |
| 2315 | Transmission Control Module (TCM) | Reverse pressure switch - open circuit or short to ground | Full repair manual for code 2315, Transmission Control Module (TCM) |
| 2316 | Case Transmission | Transmission Oil Pressure Sensor Not Configured | Full repair manual for code 2316, Case Transmission |
| 2317 | Case Transmission | Transmission Oil Pressure Sensor – Configuration Error | Full repair manual for code 2317, Case Transmission |
| 2318 (519178.04) - DEC | DEC | Lube Oil Pressure Sensor - open circuit or short to GND | Full repair manual for code 2318 (519178.04) - DEC, DEC |
| 2319 (519178.03) - DEC | Engine Control Unit (ECU) | Lube Oil Pressure Sensor - short to high voltage | Full repair manual for code 2319 (519178.03) - DEC, Engine Control Unit (ECU) |
| 2321 | ENG | Engine Crankshaft Speed / Position data invalid | Full repair manual for code 2321, ENG |
| 2322 | ENGINE (ENG) Controller / Engine Control Module (ECM) | Engine Camshaft Speed / Position Sensor data invalid | Full repair manual for code 2322, ENGINE (ENG) Controller / Engine Control Module (ECM) |
| 2323 | Transmission Control Module (TCU) | Transmission mid speed sensor - open circuit | Full repair manual for code 2323, Transmission Control Module (TCU) |
| 2324 | Transmission Control Module (TCU) | Transmission mid speed sensor - short to ground | Full repair manual for code 2324, Transmission Control Module (TCU) |
| 2325 | Transmission Controller | Mid speed sensor and output speed sensor swapped | Full repair manual for code 2325, Transmission Controller |
| 2326 | Transmission Controller (Trans) | The Engine RPM sourced from the alternator measured by the controller is excessively high. | Full repair manual for code 2326, Transmission Controller (Trans) |
| 2326 | Transmission Control Unit (TCU) | Engine torque/RPM sensor swapped with either mid or output speed sensors | Full repair manual for code 2326, Transmission Control Unit (TCU) |
| 2327 | Transmission (Trans) control module | No engine RPM | Full repair manual for code 2327, Transmission (Trans) control module |
| 2328 | TCU | Transmission Mid Speed Sensor Signal Missing | Full repair manual for code 2328, TCU |
| 2330 | Transmission Controller (Trans / TCU) | The Transmission output RPM speed, sourced from the sensor, measured by the controller is too high for the desired gear. | Full repair manual for code 2330, Transmission Controller (Trans / TCU) |
| 2331 | Transmission Controller | The transmission clutches are slipping | Full repair manual for code 2331, Transmission Controller |
| 2334 | Transmission Control Module | Pressure indicated on the forward clutch pressure switch when the clutch solenoids are off | Full repair manual for code 2334, Transmission Control Module |
| 2335 | Transmission Controller / Transmission ECU | Pressure indicated on the reverse clutch pressure switch when the clutch solenoids are off. | Full repair manual for code 2335, Transmission Controller / Transmission ECU |
| 2336 | Transmission Control Module (TCU) or central vehicle controller (PCC) | Creeper fails to engage | Full repair manual for code 2336, Transmission Control Module (TCU) or central vehicle controller (PCC) |
| 2337 | Transmission Control Module (TCU) | Creeper fails to disengage | Full repair manual for code 2337, Transmission Control Module (TCU) |
| 2338 | Central Controller (XCM / CCU) or Transmission Control Unit | Creeper potentiometer - short circuit to 8 volt or 12 volt | Full repair manual for code 2338, Central Controller (XCM / CCU) or Transmission Control Unit |
| 2339 | Transmission Control Module / Universal Control Module (UCM) | Creeper potentiometer - open circuit or short circuit to ground | Full repair manual for code 2339, Transmission Control Module / Universal Control Module (UCM) |
| 2342 | Transmission Control Unit (TCU) | Clutch A solenoid – open circuit or short circuit to ground | Full repair manual for code 2342, Transmission Control Unit (TCU) |
| 2343 (517967.05) - DEC | Transmission Control Unit (TCU) or Central Control Unit (CCU) | Clutch B solenoid – open circuit or short circuit to ground | Full repair manual for code 2343 (517967.05) - DEC, Transmission Control Unit (TCU) or Central Control Unit (CCU) |
| 2343 | Transmission (TRANS) controller | Clutch B solenoid - open circuit or short circuit to ground | Full repair manual for code 2343, Transmission (TRANS) controller |
| 2344 | Transmission Control Unit (TCU) | Clutch C solenoid - open circuit or short circuit to ground | Full repair manual for code 2344, Transmission Control Unit (TCU) |
| 2345 | Transmission Control Module (TCU / Trans) | Clutch D solenoid open circuit or short circuit to ground | Full repair manual for code 2345, Transmission Control Module (TCU / Trans) |
| 2346 | Transmission Control Unit (TCU) | Clutch E solenoid – open circuit or short circuit to ground | Full repair manual for code 2346, Transmission Control Unit (TCU) |
| 2347 | Transmission Control Unit (TRANS) | Low range clutch solenoid - open circuit or short circuit to ground | Full repair manual for code 2347, Transmission Control Unit (TRANS) |
| 2347-07 - BCM | BCM | High Beam Head Light Command - Mechanical System Not Responding Properly / Switch Error | Full repair manual for code 2347-07 - BCM, BCM |
| 2348 | Transmission Control Unit (TCU) | Medium range clutch solenoid failure | Full repair manual for code 2348, Transmission Control Unit (TCU) |
| 2349 | Transmission Control Module (TRANS) | High range clutch solenoid - open circuit or short circuit to ground | Full repair manual for code 2349, Transmission Control Module (TRANS) |
