Case IH fault codes & repair guides
All 9,847 codes· 50 per page · page 196 of 197
| Code | Controller | Issue summary | Repair manual |
|---|---|---|---|
| U19 | Electronic Management System / Suspension Control Module | Insufficient potentiometer range for optimal suspension performance | Full repair manual for code U19, Electronic Management System / Suspension Control Module |
| U19 | Transmission Control Module (TCU) | Transmission oil temperature is below 10°C (50°F) | Full repair manual for code U19, Transmission Control Module (TCU) |
| U2 | Electronic Hydraulic Remotes (EHR) Controller | Flow Control For Lever 2 Set Incorrectly During Calibration | Full repair manual for code U2, Electronic Hydraulic Remotes (EHR) Controller |
| U20 | Transmission Control Module (TCU) | Handbrake is not set | Full repair manual for code U20, Transmission Control Module (TCU) |
| U20 | Transmission Control Module (TCU) / Vehicle Electronic Control Unit | Incorrect starting procedure / Incorrect sequence, cycle shuttle lever and clutch pedal | Full repair manual for code U20, Transmission Control Module (TCU) / Vehicle Electronic Control Unit |
| U21 | Transmission Control Module (TCM) | Engine speed lower than 1200 RPM | Full repair manual for code U21, Transmission Control Module (TCM) |
| U22 | Transmission Control Module (TCM) / Transmission ECU | Engine speed over 1400 RPM (Decrease engine speed) | Full repair manual for code U22, Transmission Control Module (TCM) / Transmission ECU |
| U22 | Transmission Module (TCU) | ERPM is above 1350, reduce throttle | Full repair manual for code U22, Transmission Module (TCU) |
| U23 | Transmission Control Module | Power Shuttle control lever in neutral | Full repair manual for code U23, Transmission Control Module |
| U24 | Transmission Control Module | Incorrect range selection | Full repair manual for code U24, Transmission Control Module |
| U25 | Transmission Control Module (TCM) | Gear selector in neutral - Place gear lever into first gear | Full repair manual for code U25, Transmission Control Module (TCM) |
| U26 | Transmission Control Module (Transmission ECU) | Clutch pedal not fully raised or Clutch pedal not released | Full repair manual for code U26, Transmission Control Module (Transmission ECU) |
| U27 | Electronic Management Unit (EMU) / Transmission Control Unit | Clutch Pack B calibration value too low (below 230 mA) | Full repair manual for code U27, Electronic Management Unit (EMU) / Transmission Control Unit |
| U27 | Transmission Control Module | C3 calibration value is too low | Full repair manual for code U27, Transmission Control Module |
| U28 | Transmission Control Unit (TCU) / Transmission Controller | Clutch B (High clutch) calibration value is too high | Full repair manual for code U28, Transmission Control Unit (TCU) / Transmission Controller |
| U29 | Electronic Management Unit (EMU) | Clutch pack (A) value lower than 230 mA | Full repair manual for code U29, Electronic Management Unit (EMU) |
| U29 | Transmission Control Module (TCM) | C4 calibration value is too low | Full repair manual for code U29, Transmission Control Module (TCM) |
| U3 | EHR (Electronic Hydraulic Remotes) Controller | Flow Control For Lever 3 Set Incorrectly During Calibration | Full repair manual for code U3, EHR (Electronic Hydraulic Remotes) Controller |
| U30 | Transmission Electronic Management Unit (EMU) / Transmission Control Module (ECM) | Clutch pack (A) value higher than 480 mA | Full repair manual for code U30, Transmission Electronic Management Unit (EMU) / Transmission Control Module (ECM) |
| U31 | Transmission Control Module (TCU) or Electronic Draft Control / Transmission module | Wheel speed sensed - tractor moving | Full repair manual for code U31, Transmission Control Module (TCU) or Electronic Draft Control / Transmission module |
| U31 | Transmission Control Unit (TCU) | Output Speed Sensed - Tractor Moving | Full repair manual for code U31, Transmission Control Unit (TCU) |
| U32 | Transmission Control Module | C1 calibration value is too low | Full repair manual for code U32, Transmission Control Module |
| U32 | Transmission Control Module (TCM / ECM) | Hi/Lo synchronizer not engaged - Check synchronizer using the HD menu. | Full repair manual for code U32, Transmission Control Module (TCM / ECM) |
| U33 | Transmission Control Unit (TCU) | Hand Brake Not Applied | Full repair manual for code U33, Transmission Control Unit (TCU) |
| U34 | Transmission Control Module / Electronic Draft Control (EDC) / Chassis Control Module (CCM) | C2 calibration value is too low | Full repair manual for code U34, Transmission Control Module / Electronic Draft Control (EDC) / Chassis Control Module (CCM) |
| U34 | Transmission Module | Seat Switch Not Activated | Full repair manual for code U34, Transmission Module |
| U36 | Transmission Control Module (TCM) / Transmission ECU | Maximum Allowed Clutch Calibration Value Exceeded | Full repair manual for code U36, Transmission Control Module (TCM) / Transmission ECU |
| U37 | Transmission Controller (TCU) | Engine RPM Dropped Too Soon | Full repair manual for code U37, Transmission Controller (TCU) |
| U37 | Transmission Control Module (TCU) / MTA CCM | Synchroniser potentiometer signal is out of range for the reverse position | Full repair manual for code U37, Transmission Control Module (TCU) / MTA CCM |
| U37 | Transmission Control Unit (TCU) or Multi-function Control Module (XCM / ADIC) | Calibration value too low | Full repair manual for code U37, Transmission Control Unit (TCU) or Multi-function Control Module (XCM / ADIC) |
| U38 | Transmission Control Module (TCM) / Chassis Control Module (CCM) | Synchroniser potentiometer signal is out of range for the forward position | Full repair manual for code U38, Transmission Control Module (TCM) / Chassis Control Module (CCM) |
| U39 | Transmission Control Module (TCU / Transmission ECU) | Transmission Synchroniser Did Not Move Toward Reverse Position | Full repair manual for code U39, Transmission Control Module (TCU / Transmission ECU) |
| U4 | EHR (Electronic Hydraulic Remotes) Valve Processor | Flow Control For Lever 4 Set Incorrectly During Calibration | Full repair manual for code U4, EHR (Electronic Hydraulic Remotes) Valve Processor |
| U40 | Transmission Control Module (TCM) / Transmission ECU | Synchroniser did not move toward forward, even at maximum pressure. | Full repair manual for code U40, Transmission Control Module (TCM) / Transmission ECU |
| U41 | Powertrain Control Unit (PCU) | PTO speed detected (PTO brake circuit open or PTO solenoid sticking) | Full repair manual for code U41, Powertrain Control Unit (PCU) |
| U41 | Transmission Control Unit (TCU) | Synchroniser potentiometer signal is out of range for the 4 position | Full repair manual for code U41, Transmission Control Unit (TCU) |
| U42 | Transmission Controller (TCU / Transmission ECU) | Synchroniser potentiometer signal is out of range for the 5 position | Full repair manual for code U42, Transmission Controller (TCU / Transmission ECU) |
| U43 | Transmission / Chassis Controller | PTO calibration aborted. | Full repair manual for code U43, Transmission / Chassis Controller |
| U43 | Transmission Control Unit (TCU) or Chassis Control Module (CCM) | Synchroniser did not move toward 4, even at max pressure. | Full repair manual for code U43, Transmission Control Unit (TCU) or Chassis Control Module (CCM) |
| U44 | Transmission Control Unit (TCU) or Chassis Control Module (CCM) | Synchroniser did not move toward 5, even at max pressure. | Full repair manual for code U44, Transmission Control Unit (TCU) or Chassis Control Module (CCM) |
| U45 | PCU (Power Control Unit) / PTO Control Module | No PTO shaft movement (PTO circuit open) | Full repair manual for code U45, PCU (Power Control Unit) / PTO Control Module |
| U45 | Transmission Control Module (TCM) or Central Control Module (CCM) | 50kph clutch 5 calibration value is too low | Full repair manual for code U45, Transmission Control Module (TCM) or Central Control Module (CCM) |
| U46 | Transmission Control Module (TCU) | 50kph clutch 5 solenoid not present | Full repair manual for code U46, Transmission Control Module (TCU) |
| U47 | Transmission Control Module (TCU) | 19th gear solenoid not found | Full repair manual for code U47, Transmission Control Module (TCU) |
| U50 | Transmission / EDC (Electronic Draft Control) Controller or DEC (Driveline Electronic Controller) | PTO Twist Sensor Not Calibrated | Full repair manual for code U50, Transmission / EDC (Electronic Draft Control) Controller or DEC (Driveline Electronic Controller) |
| U51 | Transmission Control Module (TCM) | Unable to achieve the required engine speed (Engine Speed Error) / PTO Twist Sensor Not Calibrated | Full repair manual for code U51, Transmission Control Module (TCM) |
| U51 | Transmission Module | Engine speed error | Full repair manual for code U51, Transmission Module |
| U52 | Transmission Controller / Electronic Management Unit (EMU) | Constant Engine RPM (CERPM) Switch Switched More Than 3 Times | Full repair manual for code U52, Transmission Controller / Electronic Management Unit (EMU) |
| U53 | Transmission Controller (TCM) / PTO Controller | Remote Levers Used When Calibrating | Full repair manual for code U53, Transmission Controller (TCM) / PTO Controller |
| U54 | Transmission Controller / Electronic Management Unit (EMU) | Steering Used When Calibrating | Full repair manual for code U54, Transmission Controller / Electronic Management Unit (EMU) |
