Engine-CodesFord – P205C Ford

P205C Ford Code - Reductant Tank Temperature Sensor Circuit Low

Quick Answer

The P205C diagnostic trouble code (DTC) for Ford vehicles relates to the Reductant Tank Temperature Sensor Circuit being detected as low. Common causes include Faulty reductant tank temperature sensor, Wiring issues or corrosion in the sensor circuit, Low DEF fluid level in the reductant tank. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P205C Ford indicates Reductant Tank Temperature Sensor Circuit Low.
Common causes
Common causes include Faulty reductant tank temperature sensor, Wiring issues or corrosion in the sensor circuit, Low DEF fluid level in the reductant tank.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Table of contents Created and updated by William Orellana on Sep 06, 2024
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Code P205C Ford Description

The P205C diagnostic trouble code (DTC) for Ford vehicles relates to the Reductant Tank Temperature Sensor Circuit being detected as low. This sensor is responsible for monitoring the temperature of the reductant tank, which contains the diesel exhaust fluid (DEF) or AdBlue solution used in Selective Catalytic Reduction (SCR) systems to reduce harmful emissions. When the sensor detects a low temperature, it can indicate a potential issue with the reductant system's efficiency and performance.

OBDII Code P205C Ford - Reductant Tank Temperature Sensor Circuit Low
P205C Ford Code - Reductant Tank Temperature Sensor Circuit Low

Common Causes of P205C Ford

  1. Faulty reductant tank temperature sensor
  2. Wiring issues or corrosion in the sensor circuit
  3. Low DEF fluid level in the reductant tank
  4. Software or calibration issues in the SCR system
  5. Environmental factors affecting sensor readings (e.g., extreme temperatures)

Symptoms of P205C Ford

  1. Check Engine Light illuminated
  2. Reduced fuel efficiency
  3. Poor engine performance
  4. Failed emissions testing
  5. DEF fluid consumption increase

How to Fix P205C Ford

  1. Perform a diagnostic scan to confirm the P205C code and pinpoint the exact cause of the issue.
  2. Inspect the reductant tank temperature sensor and its wiring for any visible damage or corrosion.
  3. Test the sensor's resistance and voltage output according to manufacturer specifications to determine if it is functioning correctly.
  4. Replace the reductant tank temperature sensor if it is found to be faulty or not providing accurate readings.
  5. Clear the code from the vehicle's memory and perform a test drive to ensure the issue has been resolved.

Cost to Fix P205C Ford

The typical repair costs for addressing a P205C Ford code can vary depending on the specific cause of the issue. In general, replacing a faulty reductant tank temperature sensor can range from $150 to $300 for parts and labor. However, additional costs may be incurred if wiring repairs or software calibration are necessary. It's recommended to consult with a qualified mechanic or dealership to get an accurate estimate based on the vehicle's make and model, as well as any additional factors that may impact the repair process.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P205C Ford Code

1. What are the common symptoms of OBDII code P205C (Ford) for the Reductant Tank Temperature Sensor Circuit Low?

The common symptoms include poor fuel efficiency, reduced engine performance, illuminated Check Engine Light, and potential issues with the exhaust system.

2. What are the possible causes of OBDII code P205C (Ford) indicating a Reductant Tank Temperature Sensor Circuit Low?

Potential causes include a faulty temperature sensor, damaged wiring or connectors in the sensor circuit, issues with the powertrain control module (PCM), or a malfunction in the reductant tank system.

3. How can I diagnose the OBDII code P205C (Ford) related to the Reductant Tank Temperature Sensor Circuit Low?

Diagnosis involves using an OBDII scanner to retrieve the code, inspecting the wiring and connectors for any damage, testing the temperature sensor for proper operation, and checking the reductant tank system components.

4. Can I drive my vehicle with the OBDII code P205C (Ford) set for the Reductant Tank Temperature Sensor Circuit Low?

It is not recommended to drive the vehicle with this code set, as it can lead to performance issues and potential damage to the exhaust system. It is best to address the underlying problem promptly.

5. How do I repair OBDII code P205C (Ford) for the Reductant Tank Temperature Sensor Circuit Low?

Repair steps may involve replacing the temperature sensor, repairing or replacing damaged wiring or connectors, resetting the fault code with a scanner, and ensuring proper operation of the reductant tank system.

6. Are there any DIY tips for addressing OBDII code P205C (Ford) indicating a Reductant Tank Temperature Sensor Circuit Low?

While some basic checks like inspecting wiring connections can be done by DIY enthusiasts, diagnosing and repairing the underlying cause of this code may require professional help due to the complexity of the reductant system.

7. How critical is it to fix OBDII code P205C (Ford) related to the Reductant Tank Temperature Sensor Circuit Low?

It is important to address this code promptly to prevent potential damage to the exhaust system and ensure optimal vehicle performance. Ignoring the issue can lead to more severe problems over time.

8. Can a faulty temperature sensor cause OBDII code P205C (Ford) for the Reductant Tank Temperature Sensor Circuit Low?

Yes, a faulty temperature sensor is a common culprit for this code. If the sensor is not accurately detecting the reductant tank temperature, it can trigger the circuit low fault code.

9. Is resetting the Check Engine Light enough to fix OBDII code P205C (Ford) for the Reductant Tank Temperature Sensor Circuit Low?

Simply resetting the Check Engine Light may temporarily clear the code, but it will likely return if the underlying issue is not addressed. Proper diagnosis and repair are necessary to permanently resolve the problem.

10. How can I prevent OBDII code P205C (Ford) from recurring after repair?

Regular maintenance, checking the reductant tank system components for any issues, and addressing any related fault codes promptly can help prevent the recurrence of OBDII code P205C for the Reductant Tank Temperature Sensor Circuit Low.

Discuss the causes and fixes for P205C Ford OBDII Code

  • Had a P205C code on my 2012 F350 diesel for the second time in about 3 months. Reset both times and hasn't come back on. DEF continues to work ok. Live in central Florida so it never freezes here. Is this something I should be worried about?