Case IH fault codes & repair guides
All 9,847 codes· 50 per page · page 185 of 197
| Code | Controller | Issue summary | Repair manual |
|---|---|---|---|
| P1E | Engine Control Module (ECM) / Pump Control Unit (PCU) | Monitoring Module, Data Valid But Above Normal Range | Full repair manual for code P1E, Engine Control Module (ECM) / Pump Control Unit (PCU) |
| P1F | Engine Control Module (ECM) / Engine ECU | Monitoring Module, Shorted To High Source | Full repair manual for code P1F, Engine Control Module (ECM) / Engine ECU |
| P2 | Engine Control Unit (ECU) | Foot Throttle Position Sensor, Open Circuit Or Current Below Normal Range | Full repair manual for code P2, Engine Control Unit (ECU) |
| P20 | PCU (Powertrain Control Unit) / Engine Control Module | After-Run Not Completed, Data Valid But Below Normal Range | Full repair manual for code P20, PCU (Powertrain Control Unit) / Engine Control Module |
| P203A | — | Reagent Tank Fault | Full repair manual for code P203A |
| P203C | — | Reagent Tank Level Sensor Short Circuit Low | Full repair manual for code P203C |
| P203D | — | Reagent Tank Level Sensor Short Circuit High | Full repair manual for code P203D |
| P203E | — | Reductant Level Sensor Circuit Fault | Full repair manual for code P203E |
| P203F | — | Reagent Fluid Level in Tank Too Low | Full repair manual for code P203F |
| P2043 | — | Reagent-Temperature Sensor of Pump Module Out of Range | Full repair manual for code P2043 |
| P2043 | — | Reagent Temperature Sensor Fault | Full repair manual for code P2043 |
| P2044 | — | Reagent Temperature Sensor Fault | Full repair manual for code P2044 |
| P2045 | — | Reagent Temperature Sensor Fault | Full repair manual for code P2045 |
| P2047 | — | Reductant Injector Circuit Open | Full repair manual for code P2047 |
| P2048 | — | Reductant Injector Circuit Low | Full repair manual for code P2048 |
| P2049 | — | Reductant Injector Circuit High | Full repair manual for code P2049 |
| P204A | — | Reagent Pressure Fault | Full repair manual for code P204A |
| P204C | — | Reagent Pressure Sensor Short | Full repair manual for code P204C |
| P204D | — | Reagent Pressure Sensor Short | Full repair manual for code P204D |
| P205B | — | Reagent Tank Temperature Sensor Fault | Full repair manual for code P205B |
| P205C | — | Reagent Tank Temperature Fault | Full repair manual for code P205C |
| P205D | — | Reagent Tank Temperature Fault | Full repair manual for code P205D |
| P2063 | — | Reagent Dosing Valve Short Circuit Low | Full repair manual for code P2063 |
| P208A | — | Reagent-pump Fault | Full repair manual for code P208A |
| P208B | — | Reagent-pump - Not Delivering | Full repair manual for code P208B |
| P208D | — | Reagent-pump Over Speed | Full repair manual for code P208D |
| P209B | — | Reagent Dosing Nozzle Pressure Too High | Full repair manual for code P209B |
| P20A0 | — | Vent Valve Fault | Full repair manual for code P20A0 |
| P20A0 | — | Vent Valve (Reductant Purge Control Valve) - Open Circuit | Full repair manual for code P20A0 |
| P20A1 | — | Vent Valve Test Plausibility Test Failure | Full repair manual for code P20A1 |
| P20A2 | — | Vent valve (Reductant Purge Control Valve) - short circuit low | Full repair manual for code P20A2 |
| P20A2 | — | Vent Valve Fault | Full repair manual for code P20A2 |
| P20A3 | — | Vent valve (Reductant Purge Control Valve) - short circuit high | Full repair manual for code P20A3 |
| P20A3 | — | Vent Fault | Full repair manual for code P20A3 |
| P20A7 | — | Compressed Air Fault | Full repair manual for code P20A7 |
| P20B1 | — | Reagent Tank Heating Valve Open Circuit | Full repair manual for code P20B1 |
| P20B3 | — | Reagent Tank Heating Valve - Short Circuit | Full repair manual for code P20B3 |
| P20B4 | — | Reagent Tank Heating Valve - Short Circuit | Full repair manual for code P20B4 |
| P20B9 | — | Reagent Backflow Tube Heating Open Circuit | Full repair manual for code P20B9 |
| P20BE | — | Reagent Pressure Tube Heating Detection Mode Issue | Full repair manual for code P20BE |
| P20C1 | — | Reagent - Suction Fault | Full repair manual for code P20C1 |
| P20C2 | — | Reagent Suction Tube Heating Detection Mode Issue | Full repair manual for code P20C2 |
| P20C3 | — | Reagent Fault | Full repair manual for code P20C3 |
| P20C5 | — | Pump Module - Internal Heating - Open Circuit | Full repair manual for code P20C5 |
| P21 | Electronic Management Unit (EMU) | 4WD Solenoid Stuck Off | Full repair manual for code P21, Electronic Management Unit (EMU) |
| P22 | Electronic Engine Control Unit (EECU / ECU) | Boost Air Temperature Sensor, Grounded Or Current Above Normal Range | Full repair manual for code P22, Electronic Engine Control Unit (EECU / ECU) |
| P22 | Electronic Management Unit (EMU) or Transmission/EDC (Electronic Draft Control) controller | 4WD Solenoid Stuck On | Full repair manual for code P22, Electronic Management Unit (EMU) or Transmission/EDC (Electronic Draft Control) controller |
| P23 | EECU or VECU | Boost Air Temp Sensor Open Circuit | Full repair manual for code P23, EECU or VECU |
| P23 | Electronic Management Unit (EMU) | 4WD Output Open Circuit | Full repair manual for code P23, Electronic Management Unit (EMU) |
| P24 | Electronic Management Unit (EMU) - Transmission / EDC Controller | 4WD Driver Over Temperature | Full repair manual for code P24, Electronic Management Unit (EMU) - Transmission / EDC Controller |
