P204E
Reductant Pressure Sensor Circuit Intermittent/Erratic
P204E is an OBD-II diagnostic trouble code meaning: Reductant Pressure Sensor Circuit Intermittent/Erratic. Common causes: reductant pressure sensor malfunction, open or short circuit in the sensor circuit. Estimated repair cost: $56–167.
Symptoms
- Check Engine Light Is On
- Reduced engine power
- Increased fuel consumption
- Increased NOx emissions
- Possible SCR error messages
Causes
- Reductant pressure sensor malfunction
- Open or short circuit in the sensor circuit
- Poor contact in the sensor connector
- Contamination of the sensor or injection system
- Problems with the SCR control unit
How to Fix
- Check the level and quality of the reductant
- Inspect the connectors and wiring of the sensor
- Check sensor resistance and reference voltage
- Clean the sensor and its contacts
- If necessary, replace the pressure sensor
Related codes
Error P204E by Vehicle Brand
FAQ
What does the P204E code mean?
P204E is an OBD-II diagnostic trouble code that indicates: Reductant Pressure Sensor Circuit Intermittent/Erratic
What causes a P204E error code?
The most common causes of P204E include: Reductant pressure sensor malfunction; Open or short circuit in the sensor circuit; Poor contact in the sensor connector; Contamination of the sensor or injection system.
How do I fix a P204E diagnostic trouble code?
To fix P204E: Check the level and quality of the reductant. Inspect the connectors and wiring of the sensor. Check sensor resistance and reference voltage. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P204E?
Yes, but get it checked soon
How much does it cost to fix P204E?
The estimated repair cost for P204E is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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