P203D
Reductant Level Sensor A Circuit High
P203D is an OBD-II diagnostic trouble code meaning: Reductant Level Sensor A Circuit High. Common causes: malfunction of the urea level sensor, open or short circuit in the sensor circuit. Estimated repair cost: $56–167.
Symptoms
- Check Engine light comes on
- Reduced engine power
- Increased urea consumption
- SCR System Error Message
- Problems starting the engine (in some cases)
Causes
- Malfunction of the urea level sensor
- Open or short circuit in the sensor circuit
- Connector problems or contact corrosion
- SCR control module malfunction
- Poor quality or frozen urea
How to Fix
- Check the level and quality of urea in the tank
- Diagnose the urea level sensor circuit
- Check connectors and wiring condition
- Test the urea level sensor
- If necessary, replace the urea level sensor
Related codes
Error P203D by Vehicle Brand
FAQ
What does the P203D code mean?
P203D is an OBD-II diagnostic trouble code that indicates: Reductant Level Sensor A Circuit High
What causes a P203D error code?
The most common causes of P203D include: Malfunction of the urea level sensor; Open or short circuit in the sensor circuit; Connector problems or contact corrosion; SCR control module malfunction.
How do I fix a P203D diagnostic trouble code?
To fix P203D: Check the level and quality of urea in the tank. Diagnose the urea level sensor circuit. Check connectors and wiring condition. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P203D?
Yes, but get it checked soon
How much does it cost to fix P203D?
The estimated repair cost for P203D is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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