Smart fault codes
2,388 codes · 84 vehicle records · 75 ECU records · 14,877 live-data parameters
Codes 2,388
| Code | Description | Brands | System |
|---|---|---|---|
| P2021 | Intake manifold runner position sensor/switch circuit low bank 2 | 28 | Powertrain |
| P2022 | Intake manifold runner position sensor/switch circuit high bank 2 | 28 | Powertrain |
| P2023 | Intake manifold runner position sensor/switch circuit intermittent bank 2 | 25 | Powertrain |
| P2024 | EVAP fuel vapor temperature sensor circuit | 28 | Powertrain |
| P2025 | EVAP fuel vapor temperature sensor performance | 29 | Powertrain |
| P2026 | EVAP fuel vapor temperature sensor circuit low voltage | 29 | Powertrain |
| P2027 | EVAP fuel vapor temperature sensor circuit high voltage | 29 | Powertrain |
| P2028 | EVAP fuel vapor temperature sensor circuit intermittent | 25 | Powertrain |
| P2029 | Fuel fired heater disabled | 25 | Powertrain |
| P202A | Reductant Tank Heater Control Circuit/Open | 26 | Powertrain |
| P202B | Reductant tank heater control circuit low | 25 | Powertrain |
| P202C | Reductant Tank Heater Control Circuit High | 28 | Powertrain |
| P202D | Reductant Leakage | 26 | Powertrain |
| P202E | Reductant Injection Valve Circuit Range/Performance Bank 1 Unit 1 | 28 | Powertrain |
| P202F | Reductant/regeneration supply control circuit range/performance | 23 | Powertrain |
| P2030 | Fuel fired heater performance | 25 | Powertrain |
| P2031 | Exhaust Gas Temperature Sensor Circuit (Bank 1 Sensor 2) | 34 | Powertrain |
| P2032 | Exhaust Gas Temperature Sensor Circuit Low (Bank 1 Sensor 2) | 37 | Powertrain |
| P2033 | Exhaust Gas Temperature Sensor Circuit High (Bank 1 Sensor 2) | 37 | Powertrain |
| P2034 | Exhaust gas temperature sensor circuit bank 2 sensor 2 | 26 | Powertrain |
| P2035 | Exhaust gas temperature sensor circuit low bank 2 sensor 2 | 26 | Powertrain |
| P2036 | Exhaust gas temperature sensor circuit high bank 2 sensor 2 | 26 | Powertrain |
| P2037 | Reductant Injection Air Pressure Sensor Circuit | 25 | Powertrain |
| P2038 | Reductant Injection Air Pressure Sensor Circuit Range/Performance | 25 | Powertrain |
| P2039 | Reductant Injection Air Pressure Sensor Circuit Low | 25 | Powertrain |
| P203A | Reductant Level Sensor A Circuit | 29 | Powertrain |
| P203B | Reductant Level Sensor A Circuit Range/Performance | 29 | Powertrain |
| P203C | Reductant Level Sensor A Circuit Low | 29 | Powertrain |
| P203D | Reductant Level Sensor A Circuit High | 29 | Powertrain |
| P203E | Reductant Level Sensor A Circuit Intermittent/Erratic | 26 | Powertrain |
| P203F | Reductant Level Low | 25 | Powertrain |
| P2040 | Reductant Injection Air Pressure Sensor Circuit High | 25 | Powertrain |
| P2041 | Reductant Injection Air Pressure Sensor Circuit Intermittent | 25 | Powertrain |
| P2042 | Reductant Temperature Sensor Circuit | 26 | Powertrain |
| P2043 | Reductant Temperature Sensor A Circuit Range/Performance | 31 | Powertrain |
| P2044 | Reductant Temperature Sensor Circuit Low | 31 | Powertrain |
| P2045 | Reductant Temperature Sensor Circuit High | 29 | Powertrain |
| P2046 | Reductant Temperature Sensor Circuit Intermittent | 27 | Powertrain |
| P2047 | Reductant Injection Valve Circuit/Open Bank 1 Unit 1 | 32 | Powertrain |
| P2048 | Reductant Injection Valve Circuit Low Bank 1 Unit 1 | 30 | Powertrain |
| P2049 | Reductant Injection Valve Circuit High Bank 1 Unit 1 | 30 | Powertrain |
| P204A | Reductant Pressure Sensor Circuit | 25 | Powertrain |
| P204B | Reductant Pressure Sensor Circuit Range/Performance | 26 | Powertrain |
| P204C | Reductant pressure sensor circuit low | 25 | Powertrain |
| P204D | Reductant pressure sensor circuit high | 26 | Powertrain |
| P204E | Reductant Pressure Sensor Circuit Intermittent/Erratic | 24 | Powertrain |
| P204F | Reductant system performance bank 1 | 26 | Powertrain |
| P2050 | Reductant Injector Circuit/Open Bank 2 Unit 1 | 25 | Powertrain |
| P2051 | Reductant Injector Circuit Low Bank 2 Unit 1 | 25 | Powertrain |
| P2052 | Reductant Injector Circuit High Bank 2 Unit 1 | 25 | Powertrain |
Some brand data is extracted from diagnostic files and may contain manufacturer-specific wording. General SAE J2012 descriptions are used where available.