What does this code mean?
The wording below belongs to the named make and communication. Match the complete code, reporting module, model year and engine before applying it.
A code identifies a detected condition, not a part that must automatically be replaced.
Manufacturer wording
Source wording can vary by vehicle and suffix. It is shown as written, not as a universal diagnosis.
P203E-00Reductant Level Sensor 1 Circuit Intermittent-ErraticP203EReductant Level Sensor 1 Circuit IntermittentP203E-00Reductant Level Sensor 1 Circuit Intermittent-ErraticP203E-00Reductant Level Sensor 1 Circuit Intermittent-ErraticManufacturer communications
18Original wording in English
RAM
Reported code forms P203E-00
"Diesel Exhaust Fluid (DEF) Fluid Freezing Warranty Extension XR1 Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set the following Diagnostic Trouble Code (DTC): ●…
RAM
Reported code forms P203E-00
"Diesel Exhaust Fluid (DEF) Fluid Freezing Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set the following Diagnostic Trouble Code (DTC): ● P203E-00 - Reductant…
RAM
Reported code forms P203E-00
"Diesel Exhaust Fluid (DEF) Fluid Freezing Warranty Extension XR1 Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set the following Diagnostic Trouble Code (DTC): ●…
RAM
Reported code forms P203E-00
"Diesel Exhaust Fluid (DEF) Fluid Freezing **Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set the following Diagnostic Trouble Code (DTC):** ● P203E-00 -…
CHRYSLER, DODGE, RAM
Reported code forms P203E-00
Diesel Exhaust Fluid (DEF) Fluid Freezing Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find the following Diagnostic Trouble Code (DTC) has been…
JEEP, RAM
Reported code forms P203E
Malfunction Indicator Lamp Illumination (MIL). Diagnostic Trouble Code (DTC) P203E ? Reductant Level Sensor 1 Circuit Intermittent-Erratic Set.
Check vehicle applicability
61A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
| Make | Model | Model year |
|---|---|---|
| Chrysler | 300 | 2022 |
| Chrysler | 300 | 2021 |
| Chrysler | 300 | 2014 |
| Dodge | CHALLENGER | 2022 |
| Dodge | CHALLENGER | 2021 |
| Dodge | CHALLENGER | 2020 |
| Dodge | CHARGER | 2022 |
| Dodge | CHARGER | 2021 |
| Dodge | CHARGER | 2020 |
| Ford | F-250 SD | 2016 |
| Ford | F-250 SD | 2015 |
| Ford | F-350 SD | 2016 |
Before replacing a part
Record codes and freeze-frame data. Check battery condition, related codes and visible wiring or hose damage. Follow the vehicle's diagnostic procedure and test results before replacing parts.
Can I keep driving?
A code alone cannot establish whether driving is safe. A flashing malfunction light, severe shaking, overheating, oil-pressure warning or loss of braking or steering needs prompt attention. Stop in a safe place and seek assistance when control or engine safety is affected. Follow the vehicle handbook.