P205B
Reductant Tank Temperature Sensor A Circuit Range/Performance
P205B is an OBD-II diagnostic trouble code meaning: Reductant Tank Temperature Sensor A Circuit Range/Performance. Common causes: faulty reagent temperature sensor, open or short circuit in the sensor circuit. Estimated repair cost: $28–89.
Symptoms
- Check Engine Light Is On
- Reduced engine power
- Increased fuel consumption
- Possible transition to emergency mode
- SCR system fault message on the instrument panel
Causes
- Faulty reagent temperature sensor
- Open or short circuit in the sensor circuit
- Poor contact in sensor connectors
- Problems with the SCR control module
- Low level or poor quality reagent
How to Fix
- Check the level and quality of the reagent in the tank
- Visually inspect the sensor and wiring for damage
- Check sensor resistance and voltage
- Scan the sensor connector contacts for oxidation
- If necessary, replace the reagent temperature sensor
Related codes
Error P205B by Vehicle Brand
FAQ
What does the P205B code mean?
P205B is an OBD-II diagnostic trouble code that indicates: Reductant Tank Temperature Sensor A Circuit Range/Performance
What causes a P205B error code?
The most common causes of P205B include: Faulty reagent temperature sensor; Open or short circuit in the sensor circuit; Poor contact in sensor connectors; Problems with the SCR control module.
How do I fix a P205B diagnostic trouble code?
To fix P205B: Check the level and quality of the reagent in the tank. Visually inspect the sensor and wiring for damage. Check sensor resistance and voltage. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P205B?
Yes, but get it checked soon
How much does it cost to fix P205B?
The estimated repair cost for P205B is $28–89. Actual cost depends on your vehicle, location, and labor rates.
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