P205A
Reductant Tank Temperature Sensor A Circuit
P205A is an OBD-II diagnostic trouble code meaning: Reductant Tank Temperature Sensor A Circuit. Common causes: open or short circuit in the sensor circuit, reagent temperature sensor malfunction. Estimated repair cost: $28–89.
Symptoms
- Check Engine Light Is On
- Reduced engine power
- Increased fuel consumption
- SCR system error message on dashboard
- Possible transition to emergency mode
Causes
- Open or short circuit in the sensor circuit
- Reagent temperature sensor malfunction
- Poor contact in the sensor connector
- Problems with the SCR control module
- Crystallization of AdBlue reagent in the tank
How to Fix
- Check the level and condition of the AdBlue reagent in the tank
- Visually inspect the sensor circuit for damage
- Check the resistance and voltage of the temperature sensor
- Scan the ECU memory for other related codes
- If necessary, replace the reagent temperature sensor
Related codes
Error P205A by Vehicle Brand
FAQ
What does the P205A code mean?
P205A is an OBD-II diagnostic trouble code that indicates: Reductant Tank Temperature Sensor A Circuit
What causes a P205A error code?
The most common causes of P205A include: Open or short circuit in the sensor circuit; Reagent temperature sensor malfunction; Poor contact in the sensor connector; Problems with the SCR control module.
How do I fix a P205A diagnostic trouble code?
To fix P205A: Check the level and condition of the AdBlue reagent in the tank. Visually inspect the sensor circuit for damage. Check the resistance and voltage of the temperature sensor. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P205A?
Yes, but get it checked soon
How much does it cost to fix P205A?
The estimated repair cost for P205A is $28–89. Actual cost depends on your vehicle, location, and labor rates.
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