Case IH fault codes & repair guides
All 9,847 codes· 50 per page · page 121 of 197
| Code | Controller | Issue summary | Repair manual |
|---|---|---|---|
| 19071 | Engine Control Unit (ECU) | SCR catalyst efficiency lower than first NOx production threshold level. | Full repair manual for code 19071, Engine Control Unit (ECU) |
| 19071 (DTC 2DDA) - ECU | Engine ECU | SCR catalyst efficiency lower than first NOx production threshold level | Full repair manual for code 19071 (DTC 2DDA) - ECU, Engine ECU |
| 19072 | Engine Control Unit (ECU) | SCR catalyst efficiency lower than second NOx production threshold level | Full repair manual for code 19072, Engine Control Unit (ECU) |
| 19073 | DCU (Dosing Control Unit) | Voltage supply 2 - tube heaters (UB2) electrical | Short to bat at UB2 with Key 15 off | Full repair manual for code 19073, DCU (Dosing Control Unit) |
| 19074 | DCU (Dosing Control Unit) | Short Circuit to Ground on Voltage supply 2 - tube heaters (UB2) electrical | Full repair manual for code 19074, DCU (Dosing Control Unit) |
| 19075 | DCU (Dosing Control Unit) | Voltage supply 2 - tube heaters (UB2) electrical | Full repair manual for code 19075, DCU (Dosing Control Unit) |
| 19076 | Engine Control Unit (ECU / EDC - Electronic Diesel Control) | NH3 Slip behind SCR detected | Full repair manual for code 19076, Engine Control Unit (ECU / EDC - Electronic Diesel Control) |
| 19077 (DTC 334A) - ECU | Engine Control Unit (ECU) | DEF/AdBlue pressure stabilization failure | Full repair manual for code 19077 (DTC 334A) - ECU, Engine Control Unit (ECU) |
| 19077 (F-4334-10) | Engine Control Unit (ECU) or DEF/AdBlue Dosing Control Unit (DCU) | DEF/AdBlue pressure stabilization failure | Full repair manual for code 19077 (F-4334-10), Engine Control Unit (ECU) or DEF/AdBlue Dosing Control Unit (DCU) |
| 19078 | Engine Control Module (ECM) or Urea Supply Computer / DEF Dosing Control Unit | System not emptied at the end of the previous driving cycle | Full repair manual for code 19078, Engine Control Module (ECM) or Urea Supply Computer / DEF Dosing Control Unit |
| 19079 | Engine Control Unit (ECU) or Dosing Control Unit (DCU) | DEF/AdBlue over pressure failure | Full repair manual for code 19079, Engine Control Unit (ECU) or Dosing Control Unit (DCU) |
| 19079 (DTC 1A4A) - ECU | Engine Control Unit (ECU) or SCR/DEF Dosing Control Unit (DCU) | DEF/AdBlue over pressure failure | Full repair manual for code 19079 (DTC 1A4A) - ECU, Engine Control Unit (ECU) or SCR/DEF Dosing Control Unit (DCU) |
| 19079 (F-4334-15) | Engine ECU or DCU | DEF/AdBlue over pressure failure | Full repair manual for code 19079 (F-4334-15), Engine ECU or DCU |
| 19080 (F-4334-17) | Engine Control Unit (ECU) | DEF/AdBlue under pressure failure | Full repair manual for code 19080 (F-4334-17), Engine Control Unit (ECU) |
| 19080 | Engine ECU / Dosing Control Unit (DCU) | DEF/AdBlue under pressure failure | Full repair manual for code 19080, Engine ECU / Dosing Control Unit (DCU) |
| 19081 (DTC 717A) - ECU | Engine ECU | DEF/AdBlue dosing valve actuator short circuit to ground in high side failure | Full repair manual for code 19081 (DTC 717A) - ECU, Engine ECU |
| 19081 | VCM, DCU, or Engine ECU (EDC) | DEF/AdBlue dosing valve actuator short circuit to ground in high side failure | Full repair manual for code 19081, VCM, DCU, or Engine ECU (EDC) |
| 19082 | DCU (Dosing Control Unit) | Voltage supply 3 - Coolant control valve and reverting valve (UB3) electrical | Short to bat at UB3 with Key 15 off | Full repair manual for code 19082, DCU (Dosing Control Unit) |
| 19082 (DTC 6C5A) - ECU | DCU (Dosing Control Unit) or Engine ECU (EDC17) | DEF/AdBlue reverting valve driver circuit short to battery failure | Full repair manual for code 19082 (DTC 6C5A) - ECU, DCU (Dosing Control Unit) or Engine ECU (EDC17) |
| 19083 | DCU (Dosing Control Unit) | Voltage supply 3 - Coolant control valve and reverting valve (UB3) electrical | Open circuit to UB3 | P20A0 Vent valve (Reductant Purge Control Valve) - open circuit. | Full repair manual for code 19083, DCU (Dosing Control Unit) |
| 19083 (DTC 7D5A) - ECU | DCU (Dosing Control Unit) | DEF/AdBlue reverting valve driver circuit short to ground failure | Full repair manual for code 19083 (DTC 7D5A) - ECU, DCU (Dosing Control Unit) |
| 19084 | DCU (Dosing Control Unit) | Voltage supply 3 - Coolant control valve and reverting valve (UB3) electrical | Short circuit to Ground UB3 | P20A2 Vent valve (Reductant Purge Control Valve) - short circuit low | Full repair manual for code 19084, DCU (Dosing Control Unit) |
| 19084 (DTC 5E5A) - ECU | DCU (Dosing Control Unit) | DEF/AdBlue reverting valve driver circuit open failure | Full repair manual for code 19084 (DTC 5E5A) - ECU, DCU (Dosing Control Unit) |
| 19084 | DCU (Dosing Control Unit) or Engine ECU (EDC17) | Voltage supply 3 - Coolant control valve and reverting valve (UB3) electrical | Short circuit to Ground UB3 or Open Circuit (P20A0) | Full repair manual for code 19084, DCU (Dosing Control Unit) or Engine ECU (EDC17) |
| 19085 (DTC 857A) - ECU | Engine Control Unit (ECU / ECM) | DEF/AdBlue dosing valve ECU driver overtemperature failure | Full repair manual for code 19085 (DTC 857A) - ECU, Engine Control Unit (ECU / ECM) |
| 19085 | Engine ECU or DEF/AdBlue Dosing Control Unit (DCU) | DEF/AdBlue dosing valve ECU driver overtemperature failure | Full repair manual for code 19085, Engine ECU or DEF/AdBlue Dosing Control Unit (DCU) |
| 19086 (F-4354-14) - ECU | Engine Control Unit (ECU) | DEF/AdBlue pressure line heater failure and DEF/AdBlue tank temperature is too low | Full repair manual for code 19086 (F-4354-14) - ECU, Engine Control Unit (ECU) |
| 19086 | Engine Control Unit (ECU) / Dosing Control Unit (DCU) / Urea Control Module (UCM) | DEF/AdBlue pressure line heater failure and DEF/AdBlue tank temperature is too low. | Full repair manual for code 19086, Engine Control Unit (ECU) / Dosing Control Unit (DCU) / Urea Control Module (UCM) |
| 19087 | DCU (Dosing Control Unit / Supply Module) or Engine Control Module (ECM) | DEF/AdBlue tank temperature is not within acceptable limits. | Full repair manual for code 19087, DCU (Dosing Control Unit / Supply Module) or Engine Control Module (ECM) |
| 19087 (DTC 8DAA) - ECU | EDC (Engine Data Controller) or VCM (Vehicle Control Module) | DEF/AdBlue tank temperature is not within acceptable limits | Full repair manual for code 19087 (DTC 8DAA) - ECU, EDC (Engine Data Controller) or VCM (Vehicle Control Module) |
| 19087 (F-3031-06) | Engine ECU (Electronic Diesel Control - EDC) or Dosing Control Unit (DCU) | DEF/AdBlue tank temperature is not within acceptable limits. | Full repair manual for code 19087 (F-3031-06), Engine ECU (Electronic Diesel Control - EDC) or Dosing Control Unit (DCU) |
| 19088 | DCU (Dosing Control Unit / DeNOx Control Unit) / ECM (Engine Control Module) | Error supply module heater plausibility | Full repair manual for code 19088, DCU (Dosing Control Unit / DeNOx Control Unit) / ECM (Engine Control Module) |
| 19088 (F-519294-02) | Engine ECU / Aftertreatment System ECU | Error supply module heater plausibility | Full repair manual for code 19088 (F-519294-02), Engine ECU / Aftertreatment System ECU |
| 19089 | Engine Control Module (ECM) or Dosing Control Unit (DCU) | Error DEF/AdBlue supply module heater temperature sensor dynamic plausibility | Full repair manual for code 19089, Engine Control Module (ECM) or Dosing Control Unit (DCU) |
| 19090 | Dosing Control Unit (DCU) | Error DEF/AdBlue supply module heater temperature sensor cold start plausibility | Full repair manual for code 19090, Dosing Control Unit (DCU) |
| 19091 | DCU (Dosing Control Unit) | Monitoring VDD11 voltage - Dosing valve | supply voltage low | P0658 12 Volt supply for dosing module - below lower limit. | Full repair manual for code 19091, DCU (Dosing Control Unit) |
| 19092 | DCU (Dosing Control Unit) | Monitoring VDD11 voltage - Dosing valve supply voltage high | Full repair manual for code 19092, DCU (Dosing Control Unit) |
| 19093 | DCU (Dosing Control Unit) | Monitoring VDD11/ VDD25 voltage - Dosing valve/pump motor supply voltage VD25 high - 12 Volt supply for dosing module - Above upper limit | Full repair manual for code 19093, DCU (Dosing Control Unit) |
| 19094 | DCU (Dosing Control Unit) | Monitoring VDD11/ VDD25 voltage - Dosing valve/pump motor supply voltage VD25 low - P0658 12 Volt supply for dosing module - Below lower limit | Full repair manual for code 19094, DCU (Dosing Control Unit) |
| 19095 (F-3363-12) | EEM (Electronic Engine Management) / DCU (Dosing Control Unit) | DEF/AdBlue tank temperature sensor plausibility failure | Full repair manual for code 19095 (F-3363-12), EEM (Electronic Engine Management) / DCU (Dosing Control Unit) |
| 19095 | Engine Control Unit (ECU) | DEF/AdBlue tank temperature sensor plausibility failure | Full repair manual for code 19095, Engine Control Unit (ECU) |
| 19095 (DTC 2F3A) - ECU | Engine Electronic Control Module (EEM / ECM) or Dosing Control Unit (DCU) | DEF/AdBlue tank temperature sensor plausibility failure. | Full repair manual for code 19095 (DTC 2F3A) - ECU, Engine Electronic Control Module (EEM / ECM) or Dosing Control Unit (DCU) |
| 19096 | Engine Control Module (ECM) / SCR System ECU | DEF/AdBlue supply module temperature not available. | Full repair manual for code 19096, Engine Control Module (ECM) / SCR System ECU |
| 19096 (DTC 436A) - ECU | Engine Control Unit (ECU) | DEF/AdBlue supply module temperature not available | Full repair manual for code 19096 (DTC 436A) - ECU, Engine Control Unit (ECU) |
| 19097 | Engine Control Unit (ECU) or Dosing Control Unit (DCU) | DEF/AdBlue supply module temperature outside valid range | Full repair manual for code 19097, Engine Control Unit (ECU) or Dosing Control Unit (DCU) |
| 19098 | Engine Control Module (ECM) or Dosing Control Unit (DCU) | DEF/AdBlue supply module heater detected a faulty PWM signal only | Full repair manual for code 19098, Engine Control Module (ECM) or Dosing Control Unit (DCU) |
| 19099 | Dosing Control Unit (DCU) | Over Temperature error of DEF/AdBlue Supply Module Heater Actuator powerstage | Full repair manual for code 19099, Dosing Control Unit (DCU) |
| 19100 | DCU (Dosing Control Unit) | UREA level sensor (electrical) | supply voltage error | Reductant Level Sensor - Circuit Intermittent/Erratic | Full repair manual for code 19100, DCU (Dosing Control Unit) |
| 19101 | DCU (Dosing Control Unit) | UREA level sensor (electrical) signal high / P203D Reagent - tank level sensor - short circuit high | Full repair manual for code 19101, DCU (Dosing Control Unit) |
| 19102 | DCU (Dosing Control Unit) | UREA level sensor (electrical) | signal low | Reagent - tank level sensor - short circuit low. | Full repair manual for code 19102, DCU (Dosing Control Unit) |
