Case IH fault codes & repair guides
All 9,847 codes· 50 per page · page 190 of 197
| Code | Controller | Issue summary | Repair manual |
|---|---|---|---|
| t1E | Monitoring Module / Digital Instrument Cluster (EIC) | Monitoring module, data valid but above normal range | Full repair manual for code t1E, Monitoring Module / Digital Instrument Cluster (EIC) |
| t1F | Engine Control Unit (ECU) or Electronic Management Unit (EMU) / Digital Instrument Cluster (EIC) | Monitoring Module, Shorted To High Source | Full repair manual for code t1F, Engine Control Unit (ECU) or Electronic Management Unit (EMU) / Digital Instrument Cluster (EIC) |
| t2 | Engine Control Unit (ECU) / Transmission Controller (EDC/TCU) | Foot Throttle Position Sensor, Open Circuit Or Current Below Normal Range | Full repair manual for code t2, Engine Control Unit (ECU) / Transmission Controller (EDC/TCU) |
| t20 | Engine Control Unit (ECU) | After-Run Not Completed, Data Valid But Below Normal Range | Full repair manual for code t20, Engine Control Unit (ECU) |
| t21 | Engine Control Module (ECM) | After-Run Not Completed, Data Valid But Above Normal Range | Full repair manual for code t21, Engine Control Module (ECM) |
| t22 | ECM | Boost Air Temperature Sensor, Grounded Or Current Above Normal Range | Full repair manual for code t22, ECM |
| t23 | Engine Electronic Control Unit (EECU) / Electronic Management Unit (EMU) | Boost Air Temperature Sensor, Open Circuit Or Current Below Normal Range. | Full repair manual for code t23, Engine Electronic Control Unit (EECU) / Electronic Management Unit (EMU) |
| t24 | Electronic Management Unit (EMU) / Engine ECU | Boost Air Temperature Sensor, Shorted To Low Source | Full repair manual for code t24, Electronic Management Unit (EMU) / Engine ECU |
| t25 | Engine Control Unit (ECU) | Boost Air Temperature Sensor, Data Valid But Above Normal Range | Full repair manual for code t25, Engine Control Unit (ECU) |
| t26 | Engine Control Unit (ECU) | Boost Air Temperature Sensor (PHY), Grounded Or Current Above Normal Range | Full repair manual for code t26, Engine Control Unit (ECU) |
| t27 | Engine Control Module (ECM) | Boost Air Temperature Sensor (PHY), Data Incorrect | Full repair manual for code t27, Engine Control Module (ECM) |
| t28 | Engine Control Unit (ECU) / Electronic Diesel Control (EDC) | Boost Air Temperature Sensor (PHY), Data Valid But Above Normal Range | Full repair manual for code t28, Engine Control Unit (ECU) / Electronic Diesel Control (EDC) |
| t29 | Electronic Engine Controller (ECU) | Boost Air Temperature Sensor (PHY), Shorted To High Source | Full repair manual for code t29, Electronic Engine Controller (ECU) |
| t2C | Transmission / EDC (Electronic Draft Control) / PCU (Powertrain Control Unit) | Battery Voltage, Data Valid But Above Normal Range | Full repair manual for code t2C, Transmission / EDC (Electronic Draft Control) / PCU (Powertrain Control Unit) |
| t2D | ECU | Battery Voltage Below Normal | Full repair manual for code t2D, ECU |
| t2E | Transmission / EDC (Electronic Draft Control) Controller and Engine ECU (PCU) | Battery Voltage, Shorted To Low Source. | Full repair manual for code t2E, Transmission / EDC (Electronic Draft Control) Controller and Engine ECU (PCU) |
| t3 | Engine Control Unit (ECU) / Electronic Management Unit (EMU) | Foot Throttle Position Sensor, Shorted To Low Source | Full repair manual for code t3, Engine Control Unit (ECU) / Electronic Management Unit (EMU) |
| t31 | Engine Control Unit (EDC / Engine ECU) | Boost air pressure sensor, grounded or current above normal range | Full repair manual for code t31, Engine Control Unit (EDC / Engine ECU) |
| t32 | Engine Control Unit (ECU) / Engine Management System | Boost Air Pressure Sensor, Open Circuit Or Current Below Normal Range | Full repair manual for code t32, Engine Control Unit (ECU) / Engine Management System |
| t33 | Engine Management Unit (EMU) | Boost Air Pressure Sensor, Shorted To Low Source. | Full repair manual for code t33, Engine Management Unit (EMU) |
| t34 | Engine ECU or PCU | Boost Air Pressure Sensor, Shorted To High Source | Full repair manual for code t34, Engine ECU or PCU |
| t35 | Engine Control Unit (ECU) | Boost Air Pressure Sensor (PHY), Data Valid But Above Normal Range | Full repair manual for code t35, Engine Control Unit (ECU) |
| t36 | Powertrain Control Unit (PCU) / Engine ECU | Boost Air Pressure Sensor (PHY), Data Incorrect | Full repair manual for code t36, Powertrain Control Unit (PCU) / Engine ECU |
| t37 | PCU (Powertrain Control Unit) or ECU | Boost Air Pressure Sensor (PHY), Shorted To High Source | Full repair manual for code t37, PCU (Powertrain Control Unit) or ECU |
| t38 | Transmission Control Module | Vehicle CAN Bus Transmit, Data Valid But Above Normal Range | Full repair manual for code t38, Transmission Control Module |
| t39 | Transmission Control Module (TCM) | Vehicle CAN Bus Transmit, Shorted To High Source | Full repair manual for code t39, Transmission Control Module (TCM) |
| t3A | PCU | PCU Initialization, Data Valid But Above Normal Range | Full repair manual for code t3A, PCU |
| t3B | PCU (Powertrain Control Unit) | PCU Initialization, Shorted To High Source | Full repair manual for code t3B, PCU (Powertrain Control Unit) |
| t3C | Transmission Controller | Solenoid Valve, Data Valid But Below Normal Range | Full repair manual for code t3C, Transmission Controller |
| t3D | Transmission Control Module (TCU) or Central Controller (XCM) | Solenoid Valve, Data Incorrect | Full repair manual for code t3D, Transmission Control Module (TCU) or Central Controller (XCM) |
| t3E | Transmission Controller | Solenoid Valve, Data Valid But Above Normal Range | Full repair manual for code t3E, Transmission Controller |
| t3F | PSG (Fuel Pump Control Module) / EDC / EIC | PSG Message, Data Valid But Above Normal Range | Full repair manual for code t3F, PSG (Fuel Pump Control Module) / EDC / EIC |
| t40 | Engine Control Module (ECM) and Pump Control Unit (PCU) | PSG Message, Shorted To High Source | Full repair manual for code t40, Engine Control Module (ECM) and Pump Control Unit (PCU) |
| t41 | Vehicle Control Unit (PCU) / Transmission Controller or Engine Control Unit (EDC) | MSG1 message, data valid but above normal range | Full repair manual for code t41, Vehicle Control Unit (PCU) / Transmission Controller or Engine Control Unit (EDC) |
| t45 | Engine Control Module (ECM) | CAN CCVSS Message, Data Valid But Below Normal Range | Full repair manual for code t45, Engine Control Module (ECM) |
| t46 | Digital Instrument Cluster (DIC) / Electronic Instrument Cluster (EIC) | CAN CCVSS message, data incorrect | Full repair manual for code t46, Digital Instrument Cluster (DIC) / Electronic Instrument Cluster (EIC) |
| t47 | Engine Control Module (ECM) | CAN CCVSS Message, Data Valid But Above Normal Range | Full repair manual for code t47, Engine Control Module (ECM) |
| t4A | Digital Instrument Cluster (EIC) / Engine Controller (EDC) | Coolant Temperature Sensor, Grounded Or Current Above Normal Range | Full repair manual for code t4A, Digital Instrument Cluster (EIC) / Engine Controller (EDC) |
| t4B | Engine Control Unit (ECU) | Coolant Temperature Sensor, Open Circuit Or Current Below Normal Range | Full repair manual for code t4B, Engine Control Unit (ECU) |
| t4C | Engine Control Unit (ECU) | Coolant Temperature Sensor, Shorted To Low Source | Full repair manual for code t4C, Engine Control Unit (ECU) |
| t4D | Powertrain Control Unit (PCU) / Engine Controller | Coolant Temperature Sensor, Data Valid But Above Normal Range | Full repair manual for code t4D, Powertrain Control Unit (PCU) / Engine Controller |
| t4E | Electronic Engine Controller (ECU) | Coolant Temperature Sensor (PHY), Data Valid But Above Normal Range | Full repair manual for code t4E, Electronic Engine Controller (ECU) |
| t4F | EIC (Electronic Instrument Cluster) and Transmission/EDC (Electronic Draft Control) Microprocessor | Coolant Temperature Sensor (PHY), Data Incorrect | Full repair manual for code t4F, EIC (Electronic Instrument Cluster) and Transmission/EDC (Electronic Draft Control) Microprocessor |
| t5 | Electronic Engine Control Unit (ECU) or Hand Throttle/PTO Control Module (XCM) | CAN AE Message (Torque Set point), Data Valid But Below Normal Range | Full repair manual for code t5, Electronic Engine Control Unit (ECU) or Hand Throttle/PTO Control Module (XCM) |
| t50 | Engine Control Unit (ECU) or Instrument Controller | Coolant Temperature Sensor (PHY), Shorted To High Source | Full repair manual for code t50, Engine Control Unit (ECU) or Instrument Controller |
| t58 | Transmission/EDC Controller | Crankshaft Speed Sensor, Data Incorrect | Full repair manual for code t58, Transmission/EDC Controller |
| t59 | Transmission / EDC (Electronic Draft Control) Controller and Engine ECU | Crankshaft Speed Sensor, Shorted To Low Source | Full repair manual for code t59, Transmission / EDC (Electronic Draft Control) Controller and Engine ECU |
| t5A | Engine Control Unit (ECU) or Tractor Control Unit (TCU) / Transmission Controller | Crankshaft Speed Sensor, Shorted To High Source | Full repair manual for code t5A, Engine Control Unit (ECU) or Tractor Control Unit (TCU) / Transmission Controller |
| t5B | Transmission/EDC or EMU | Reverse Polarity Of Engine Speed Sensor, Data Valid But Below Normal Range | Full repair manual for code t5B, Transmission/EDC or EMU |
| t5C | Electronic Management Unit (EMU) / Transmission Controller (EDC) | Reverse Polarity Of Engine Speed Sensor, Data Valid But Above Normal Range | Full repair manual for code t5C, Electronic Management Unit (EMU) / Transmission Controller (EDC) |
