# P203E on the 2014 Jeep Grand Cherokee

The bulletins listed name this code in NHTSA's summary, or are about the same components. A bulletin or a recall listed here may apply to the model year. None of it is a diagnosis.

Nobody has written a description of this code yet.

## Bulletins for this model year that name P203E

- [10247967](https://open.wenmarpro.com/bulletins/10247967), 2024-01-02: Malfunction Indicator Lamp Illumination \(MIL\). Diagnostic Trouble Code \(DTC\) P203E ? Reductant Level Sensor 1 Circuit Intermittent\-Erratic Set.
- [10234440](https://open.wenmarpro.com/bulletins/10234440), 2023-04-17: Malfunction Indicator Lamp Illumination \(MIL\). Diagnostic Trouble Code \(DTC\) P203E ? Reductant Level Sensor 1 Circuit Intermittent\-Erratic Set.
- [10224024](https://open.wenmarpro.com/bulletins/10224024), 2022-10-17: \(Rev. B\) Malfunction Indicator Lamp Illumination \(MIL\). Diagnostic Trouble Code \(DTC\) P203E ? Reductant Level Sensor 1 Circuit Intermittent\-Erratic Set.
- [10223871](https://open.wenmarpro.com/bulletins/10223871), 2022-10-17: TANK, Diesel Exhaust Fluid, Part Includes Temp Sensor and Level Sensor For DS and WK vehicles ONLY; If the urea tank is being replaced due to P249C, P203E, or P24F3 on a 2014\-2016 model year 3.0L Turbo Diesel \(EXF\) on DS or WK, please call Indra Djutrisno at cell \(248\) 892\-3473. If no response is received within 15 minutes, please continue with repair
- [10218810](https://open.wenmarpro.com/bulletins/10218810), 2022-08-29: Flash: MIL Illumination \- Diagnostic and System Improvements This bulletin involves selectively erasing and reprogramming the Powertrain Control Module \(PCM\) with new software. Some customers may experience a condition that the Oil Life Monitor shows faster then expected oil life deterioration. Software enhancements will address this issue. Some customers may experience a Malfunction Indicator Lamp \(MIL\) illumination. Upon further investigation the Technician may find that any of the following Diagnostic Trouble Code\(s\) may have been set erroneously: ? P0087\-00 \- FUEL RAIL PRESSURE TOO LOW ? P0088\-00 \- FUEL RAIL PRESSURE TOO HIGH ? P016F\-00 \- CLOSED LOOP FUEL PRESSURE CONTROL AT LIMIT \- PRESSURE TOO LOW ? P009A\-00 \- INTAKE AIR TEMPERATURE / AMBIENT AIR TEMPERATURE CORRELATION ? P0234\-00 \- TURBOCHARGER OVERBOOST CONDITION ? P0420\-00 \- CATALYST EFFICIENCY \(BANK 1\) ? P0426\-00 \- CATALYST TEMPERATURE SENSOR CIRCUIT PERFORMANCE \(BANK 1 SENSOR 1\) ? P050E\-00 \- COLD START ENGINE EXHAUST TEMPERATURE TOO LOW ? P05F8\-00 REDUCTANT HEATER CONTROL MODULE PERFORMANCE ? P061B\-00 \- INTERNAL CONTROL MODULE TORQUE CALCULATION PERFORMANCE ? P062B\-00 \- INTERNAL CONTROL MODULE FUEL INJECTOR CONTROL CIRCUIT PERFORMANCE ? P0128\-00 \- THERMOSTAT RATIONALITY ? P1D30\-00 \- OIL VISCOSITY TOO LOW ? P200A\-00 \- INTAKE MANIFOLD RUNNER PERFORMANCE \- BANK 1 ? P200B\-00 \- INTAKE MANIFOLD RUNNER PERFORMANCE \- BANK 2 ? P202E\-00 \- REDUCTANT INJECTION VALVE CIRCUIT PERFORMANCE ? P203E\-00 \- REDUCTANT LEVEL SENSOR 1 CIRCUIT INTERMITTENT/ERRATIC ? P204F\-00 \- REDUCTANT SYSTEM PERFORMANCE ? P2080\-00 \- EXHAUST GAS TEMPERATURE SENSOR CIRCUIT PERFORMANCE ? P2084\-00 \- EXHAUST GAS TEMPERATURE SENSOR CIRCUIT PERFORMANCE \- BANK 1 SENSOR 2 ? P20BA\-00 \- REDUCTANT HEATER 1 CONTROL CIRCUIT PERFORMANCE ? P20BE\-00 \- REDUCTANT PRESSURE LINE HEATER CONTROL CIRCUIT PERFORMANCE ? P20EE\-00 \- SCR NOX CATALYST EFFICIENCY BELOW THRESHOLD BANK 1 ? P20C2\-00 \- REDUCTANT HE
- [10217969](https://open.wenmarpro.com/bulletins/10217969), 2022-08-22: Flash: MIL Illumination \- Diagnostic and System Improvements This bulletin involves selectively erasing and reprogramming the Powertrain Control Module \(PCM\) with new software. Some customers may experience a condition that the Oil Life Monitor shows faster then expected oil life deterioration. Software enhancements will address this issue. Some customers may experience a Malfunction Indicator Lamp \(MIL\) illumination. Upon further investigation the Technician may find that any of the following Diagnostic Trouble Code\(s\) may have been set erroneously: ? P0087\-00 \- FUEL RAIL PRESSURE TOO LOW ? P0088\-00 \- FUEL RAIL PRESSURE TOO HIGH ? P016F\-00 \- CLOSED LOOP FUEL PRESSURE CONTROL AT LIMIT \- PRESSURE TOO LOW ? P009A\-00 \- INTAKE AIR TEMPERATURE / AMBIENT AIR TEMPERATURE CORRELATION ? P0234\-00 \- TURBOCHARGER OVERBOOST CONDITION ? P0420\-00 \- CATALYST EFFICIENCY \(BANK 1\) ? P0426\-00 \- CATALYST TEMPERATURE SENSOR CIRCUIT PERFORMANCE \(BANK 1 SENSOR 1\) ? P050E\-00 \- COLD START ENGINE EXHAUST TEMPERATURE TOO LOW ? P05F8\-00 REDUCTANT HEATER CONTROL MODULE PERFORMANCE ? P061B\-00 \- INTERNAL CONTROL MODULE TORQUE CALCULATION PERFORMANCE ? P062B\-00 \- INTERNAL CONTROL MODULE FUEL INJECTOR CONTROL CIRCUIT PERFORMANCE ? P0128\-00 \- THERMOSTAT RATIONALITY ? P1D30\-00 \- OIL VISCOSITY TOO LOW ? P200A\-00 \- INTAKE MANIFOLD RUNNER PERFORMANCE \- BANK 1 ? P200B\-00 \- INTAKE MANIFOLD RUNNER PERFORMANCE \- BANK 2 ? P202E\-00 \- REDUCTANT INJECTION VALVE CIRCUIT PERFORMANCE ? P203E\-00 \- REDUCTANT LEVEL SENSOR 1 CIRCUIT INTERMITTENT/ERRATIC ? P204F\-00 \- REDUCTANT SYSTEM PERFORMANCE ? P2080\-00 \- EXHAUST GAS TEMPERATURE SENSOR CIRCUIT PERFORMANCE ? P2084\-00 \- EXHAUST GAS TEMPERATURE SENSOR CIRCUIT PERFORMANCE \- BANK 1 SENSOR 2 ? P20BA\-00 \- REDUCTANT HEATER 1 CONTROL CIRCUIT PERFORMANCE ? P20BE\-00 \- REDUCTANT PRESSURE LINE HEATER CONTROL CIRCUIT PERFORMANCE ? P20EE\-00 \- SCR NOX CATALYST EFFICIENCY BELOW THRESHOLD BANK 1 ? P20C2\-00 \- REDUCTANT HE
- [10217706](https://open.wenmarpro.com/bulletins/10217706), 2022-08-15: Flash: MIL Illumination \- Remote Start, Diagnostic and System Improvements This bulletin involves selectively erasing and reprogramming the Powertrain Control Module \(PCM\) with new software. Some customers may experience a condition that the Remote Start will not start the vehicle in cold 14° F \(\-10° C\) ambient temperatures. Software enhancements will help this issue. Some customers may experience a condition that the Oil Life Monitor shows faster then expected oil life deterioration. Software enhancements will address this issue. Some customers may experience a Malfunction Indicator Lamp \(MIL\) illumination. Upon further investigation the Technician may find that any of the following Diagnostic Trouble Code\(s\) may have been set erroneously: ? P0087\-00 \- FUEL RAIL PRESSURE TOO LOW ? P0088\-00 \- FUEL RAIL PRESSURE TOO HIGH ? P016F\-00 \- CLOSED LOOP FUEL PRESSURE CONTROL AT LIMIT \- PRESSURE TOO LOW ? P009A\-00 \- INTAKE AIR TEMPERATURE / AMBIENT AIR TEMPERATURE CORRELATION ? P0234\-00 \- TURBOCHARGER OVERBOOST CONDITION ? P0420\-00 \- CATALYST EFFICIENCY \(BANK 1\) ? P0426\-00 \- CATALYST TEMPERATURE SENSOR CIRCUIT PERFORMANCE \(BANK 1 SENSOR 1\) ? P050E\-00 \- COLD START ENGINE EXHAUST TEMPERATURE TOO LOW ? P05F8\-00 REDUCTANT HEATER CONTROL MODULE PERFORMANCE ? P061B\-00 \- INTERNAL CONTROL MODULE TORQUE CALCULATION PERFORMANCE ? P062B\-00 \- INTERNAL CONTROL MODULE FUEL INJECTOR CONTROL CIRCUIT PERFORMANCE ? P0128\-00 \- THERMOSTAT RATIONALITY ? P1D30\-00 \- OIL VISCOSITY TOO LOW ? P200A\-00 \- INTAKE MANIFOLD RUNNER PERFORMANCE \- BANK 1 ? P200B\-00 \- INTAKE MANIFOLD RUNNER PERFORMANCE \- BANK 2 ? P202E\-00 \- REDUCTANT INJECTION VALVE CIRCUIT PERFORMANCE ? P203E\-00 \- REDUCTANT LEVEL SENSOR 1 CIRCUIT INTERMITTENT/ERRATIC ? P204F\-00 \- REDUCTANT SYSTEM PERFORMANCE ? P2080\-00 \- EXHAUST GAS TEMPERATURE SENSOR CIRCUIT PERFORMANCE ? P2084\-00 \- EXHAUST GAS TEMPERATURE SENSOR CIRCUIT PERFORMANCE \- BANK 1 SENSOR 2 ? P20BA\-00 \- REDUCTANT HEATER 1 CONTROL CIRCUI
- [10184701](https://open.wenmarpro.com/bulletins/10184701), 2020-12-28: \(Rev. B\) Malfunction Indicator Lamp Illumination \(MIL\). Diagnostic Trouble Code \(DTC\) P203E ? Reductant Level Sensor 1 Circuit Intermittent\-Erratic Set.
- [10184401](https://open.wenmarpro.com/bulletins/10184401), 2020-12-21: \(Rev. B\) Malfunction Indicator Lamp Illumination \(MIL\). Diagnostic Trouble Code \(DTC\) P203E ? Reductant Level Sensor 1 Circuit Intermittent\-Erratic Set.
- [10181548](https://open.wenmarpro.com/bulletins/10181548), 2020-10-26: \(Revision A\) Malfunction Indicator Lamp Illumination \(MIL\). Diagnostic Trouble Code \(DTC\) P203E ? Reductant Level Sensor 1 Circuit Intermittent\-Erratic Set.