Case IH fault codes & repair guides
All 9,847 codes· 50 per page · page 191 of 197
| Code | Controller | Issue summary | Repair manual |
|---|---|---|---|
| t6 | Engine Control Unit (ECU) / Central Control Module (XCM) | CAN AE Message (Torque Set point), Data Incorrect | Full repair manual for code t6, Engine Control Unit (ECU) / Central Control Module (XCM) |
| t66 | Engine Control Unit (ECU) | IAT System, Data Valid But Below Normal Range | Full repair manual for code t66, Engine Control Unit (ECU) |
| t67 | Engine Control Unit (ECU) or Powertrain Control Unit (PCU) | IAT System, Data Valid But Above Normal Range | Full repair manual for code t67, Engine Control Unit (ECU) or Powertrain Control Unit (PCU) |
| t68 | PCU (Powertrain Control Unit) | Main Relay Defect, Data Valid But Above Normal Range | Full repair manual for code t68, PCU (Powertrain Control Unit) |
| t69 | Powertrain Control Unit (PCU) / Transmission Controller, or Engine Control Unit (ECU) | Main Relay Defect, Shorted To High Source | Full repair manual for code t69, Powertrain Control Unit (PCU) / Transmission Controller, or Engine Control Unit (ECU) |
| t7 | Electronic Engine Controller (ECU) or PTO/Hand Throttle Controller (XCM) | CAN AE Message (Torque Set point), Data Valid But Above Normal Range | Full repair manual for code t7, Electronic Engine Controller (ECU) or PTO/Hand Throttle Controller (XCM) |
| t72 | Engine Controller (ECU) or Powertrain Control Unit (PCU) | Engine Overspeed, Data Valid But Below Normal Range | Full repair manual for code t72, Engine Controller (ECU) or Powertrain Control Unit (PCU) |
| t73 | PCU (Pump Control Unit) | Engine Overspeed, Data Valid But Above Normal Range | Full repair manual for code t73, PCU (Pump Control Unit) |
| t74 | Pump Control Unit (PCU) | ADC In PCU, Data Valid But Below Normal Range | Full repair manual for code t74, Pump Control Unit (PCU) |
| t75 | PCU (Pump Control Unit) | ADC In PCU, Data Valid But Above Normal Range | Full repair manual for code t75, PCU (Pump Control Unit) |
| t76 | PCU (Powertrain Control Unit) | Control Duration, Data Valid But Above Normal Range | Full repair manual for code t76, PCU (Powertrain Control Unit) |
| t77 | PCU | Control Duration, Shorted To High Source | Full repair manual for code t77, PCU |
| t7A | PCU | EEPROM Checksum In PCU, Data Valid But Below Normal Range | Full repair manual for code t7A, PCU |
| t7B | Pump Control Unit (PCU) | EEPROM Checksum In PCU, Data Valid But Above Normal Range | Full repair manual for code t7B, Pump Control Unit (PCU) |
| t7C | PCU | EEPROM In PCU, Data Valid But Below Normal Range | Full repair manual for code t7C, PCU |
| t7D | PCU (Pump Control Unit) | EEPROM In PCU, Data Valid But Above Normal Range | Full repair manual for code t7D, PCU (Pump Control Unit) |
| t7E | PCU | Crankshaft Signal In PCU, Data Valid But Below Normal Range | Full repair manual for code t7E, PCU |
| t7f | PCU | Crankshaft Signal In PCU, Data Valid But Above Normal Range | Full repair manual for code t7f, PCU |
| t8 | Engine Control Unit (ECU) | Ambient Pressure Sensor, Grounded Or Current Above Normal Range | Full repair manual for code t8, Engine Control Unit (ECU) |
| t80 | Engine Control Module (ECM) | Pump Map, Data Valid But Below Normal Range | Full repair manual for code t80, Engine Control Module (ECM) |
| t81 | PCU (Power Control Unit) | Pump Map, Data Valid But Above Normal Range | Full repair manual for code t81, PCU (Power Control Unit) |
| t84 | PCU (Powertrain Control Unit) | Ram In PCU, Data Valid But Below Normal Range | Full repair manual for code t84, PCU (Powertrain Control Unit) |
| t85 | PCU (Power Control Unit / Powertrain Control Unit) | RAM in PCU, data valid but above normal range. | Full repair manual for code t85, PCU (Power Control Unit / Powertrain Control Unit) |
| t86 | CFPS | Solenoid Valve Power Stage, Data Valid But Below Normal Range | Full repair manual for code t86, CFPS |
| t87 | Pump Control Unit (PCU) / Engine Control Unit (ECU) or Transmission Controller | Solenoid Valve Power Stage, Data Valid But Above Normal Range | Full repair manual for code t87, Pump Control Unit (PCU) / Engine Control Unit (ECU) or Transmission Controller |
| t88 | Transmission Control Module (TCM) / Power Control Unit (PCU) | Solenoid Valve Power Stage 2, Data Valid But Below Normal Range | Full repair manual for code t88, Transmission Control Module (TCM) / Power Control Unit (PCU) |
| t89 | Pump Control Unit (PCU) | Solenoid Valve Power Stage 2, Data Valid But Above Normal Range | Full repair manual for code t89, Pump Control Unit (PCU) |
| t8A | Engine Control Unit / PCU (Powertrain Control Unit) | Shut-Off Signal, Data Valid But Below Normal Range | Full repair manual for code t8A, Engine Control Unit / PCU (Powertrain Control Unit) |
| t8B | Engine Control Unit (ECU) / Pump Control Unit (PCU) | Shut-Off Signal, Data Valid But Above Normal Range | Full repair manual for code t8B, Engine Control Unit (ECU) / Pump Control Unit (PCU) |
| t8C | Engine Control Unit (ECU) | Pump Timing Device, Data Valid But Below Normal Range | Full repair manual for code t8C, Engine Control Unit (ECU) |
| t8D | EMU / EDC | Pump Timing Device, Data Valid But Above Normal Range | Full repair manual for code t8D, EMU / EDC |
| t8E | Electronic Instrument Cluster (EIC) or Engine Control Unit (ECU) / PTO/Hand Throttle Codes (XCM) | Fuel Injection Pump Temperature, Data Valid But Below Normal Range | Full repair manual for code t8E, Electronic Instrument Cluster (EIC) or Engine Control Unit (ECU) / PTO/Hand Throttle Codes (XCM) |
| t8F | Engine Control Module (ECM) | Fuel Injection Pump Temperature, Data Incorrect | Full repair manual for code t8F, Engine Control Module (ECM) |
| t9 | Electronic Engine Control Unit (ECU) | Ambient Pressure Sensor, Open Circuit Or Current Below Normal Range | Full repair manual for code t9, Electronic Engine Control Unit (ECU) |
| t93 | Electronic Engine Controller (ECU) or PTO/Hand Throttle Controller (XCM) | Reserve 1, Data Valid But Above Normal Range | Full repair manual for code t93, Electronic Engine Controller (ECU) or PTO/Hand Throttle Controller (XCM) |
| t96 | Transmission / EDC (Electronic Draft Control) controller | Monitoring Module, Data Valid But Below Normal Range | Full repair manual for code t96, Transmission / EDC (Electronic Draft Control) controller |
| t97 | Engine Control Unit (ECU) / Pump Control Unit (PCU) | Monitoring Module, Data Valid But Above Normal Range | Full repair manual for code t97, Engine Control Unit (ECU) / Pump Control Unit (PCU) |
| tA | Engine ECU | Ambient Pressure Sensor, Shorted To Low Source | Full repair manual for code tA, Engine ECU |
| tAA | Pump Control Unit (PCU) | PCU CAN Chip, Data Valid But Above Normal Range | Full repair manual for code tAA, Pump Control Unit (PCU) |
| tAB | PCU (Powershift Control Unit) | PCU CAN Chip, Shorted To High Source | Full repair manual for code tAB, PCU (Powershift Control Unit) |
| tAC | PCU (Power Control Unit / Powertrain Control Unit) | PCU CAN Bus Off, Data Valid But Above Normal Range | Full repair manual for code tAC, PCU (Power Control Unit / Powertrain Control Unit) |
| tAD | PCU (Powertrain Control Unit) | PCU CAN Bus Off, Shorted To High Source | Full repair manual for code tAD, PCU (Powertrain Control Unit) |
| tAE | Central Controller (XCM) or Engine Control Module / Pump Control Unit (PCU) | Vehicle CAN Chip, Data Valid But Above Normal Range | Full repair manual for code tAE, Central Controller (XCM) or Engine Control Module / Pump Control Unit (PCU) |
| tAF | Transmission Control Module (TCM) | Vehicle CAN Chip, Data Incorrect | Full repair manual for code tAF, Transmission Control Module (TCM) |
| tB | PCU (Powertrain Control Unit) or ECU (Engine Control Unit) | Ambient Pressure Sensor, Data Valid But Above Normal Range | Full repair manual for code tB, PCU (Powertrain Control Unit) or ECU (Engine Control Unit) |
| tB0 | Transmission Control Module (TCM) / Electronic Management Unit (EMU) | Vehicle CAN Chip, Shorted To Low Source | Full repair manual for code tB0, Transmission Control Module (TCM) / Electronic Management Unit (EMU) |
| tB1 | Transmission Control Module (TCM) / Electronic Control Unit (ECU) | Vehicle CAN Chip, Shorted To High Source | Full repair manual for code tB1, Transmission Control Module (TCM) / Electronic Control Unit (ECU) |
| tB2 | Central Controller (XCM) / Engine Control Module (ECM) | Vehicle CAN Bus Off, Data Valid But Above Normal Range | Full repair manual for code tB2, Central Controller (XCM) / Engine Control Module (ECM) |
| tB3 | PCU (Powertrain Control Unit) | Vehicle CAN Bus Off, Shorted To High Source | Full repair manual for code tB3, PCU (Powertrain Control Unit) |
| tB4 | PCU (Powertrain Control Unit) / Transmission Controller | CAN VE Message (Speed Set point), Data Valid But Below Normal Range. | Full repair manual for code tB4, PCU (Powertrain Control Unit) / Transmission Controller |
