P204D
Reductant Pressure Sensor Circuit High
P204D is an OBD-II diagnostic trouble code meaning: Reductant Pressure Sensor Circuit High. Common causes: reductant pressure sensor malfunction, short circuit in the sensor circuit. Estimated repair cost: $50–133.
Symptoms
- Check Engine light comes on
- Reduced engine power
- Possible transition to emergency mode
- Increased AdBlue urea consumption
- Increased NOx emissions
Causes
- Reductant pressure sensor malfunction
- Short circuit in the sensor circuit
- Broken or damaged wiring harness
- Problems with the SCR control module
- Reductant pump malfunction
How to Fix
- Check the integrity of the sensor electrical circuit
- Test the reductant pressure sensor
- Check connectors and connections for corrosion
- Inspect the wiring harness for damage
- If necessary, replace the reducer pressure sensor
Related codes
Error P204D by Vehicle Brand
FAQ
What does the P204D code mean?
P204D is an OBD-II diagnostic trouble code that indicates: Reductant Pressure Sensor Circuit High
What causes a P204D error code?
The most common causes of P204D include: Reductant pressure sensor malfunction; Short circuit in the sensor circuit; Broken or damaged wiring harness; Problems with the SCR control module.
How do I fix a P204D diagnostic trouble code?
To fix P204D: Check the integrity of the sensor electrical circuit. Test the reductant pressure sensor. Check connectors and connections for corrosion. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P204D?
Limited driving only, diagnose soon
How much does it cost to fix P204D?
The estimated repair cost for P204D is $50–133. Actual cost depends on your vehicle, location, and labor rates.
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