P204C
Reductant Pressure Sensor Circuit Low
P204C is an OBD-II diagnostic trouble code meaning: Reductant Pressure Sensor Circuit Low. Common causes: reagent pressure sensor malfunction, open or short circuit in the sensor circuit. Estimated repair cost: $33–89.
Symptoms
- Check Engine light comes on
- Reduced engine power
- Increased fuel consumption
- Low AdBlue level message
- Unstable engine operation
Causes
- Reagent pressure sensor malfunction
- Open or short circuit in the sensor circuit
- Low AdBlue level
- Pressure sensor dirty
- Problems with the SCR control unit
How to Fix
- Check the AdBlue level and top up if necessary.
- Visually inspect the wiring and connectors of the pressure sensor
- Check the resistance and voltage in the sensor circuit
- Replace reagent pressure sensor if necessary
- Check and, if necessary, update the software of the control unit
Related codes
Error P204C by Vehicle Brand
FAQ
What does the P204C code mean?
P204C is an OBD-II diagnostic trouble code that indicates: Reductant Pressure Sensor Circuit Low
What causes a P204C error code?
The most common causes of P204C include: Reagent pressure sensor malfunction; Open or short circuit in the sensor circuit; Low AdBlue level; Pressure sensor dirty.
How do I fix a P204C diagnostic trouble code?
To fix P204C: Check the AdBlue level and top up if necessary.. Visually inspect the wiring and connectors of the pressure sensor. Check the resistance and voltage in the sensor circuit. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P204C?
Yes, but get it checked soon
How much does it cost to fix P204C?
The estimated repair cost for P204C is $33–89. Actual cost depends on your vehicle, location, and labor rates.
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