P205B Code - Reductant Tank Temperature Sensor Circuit Range/Performance
Quick Answer
The Reductant Tank Temperature Sensor is a variable resistor used to measure the temperature inside the reductant tank. Common causes include Faulty Reductant Pump and Sensor Assembly, Reductant Pump and Sensor Assembly harness is open or shorted, Reductant Pump and Sensor Assembly circuit poor electrical connection. 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
- P205B indicates Reductant Tank Temperature Sensor Circuit Range/Performance.
- Common causes
- Common causes include Faulty Reductant Pump and Sensor Assembly, Reductant Pump and Sensor Assembly harness is open or shorted, Reductant Pump and Sensor Assembly circuit poor electrical connection.
- 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.
Code P205B Description
What are the Possible Causes of the DTC P205B?
- Faulty Reductant Pump and Sensor Assembly
- Reductant Pump and Sensor Assembly harness is open or shorted
- Reductant Pump and Sensor Assembly circuit poor electrical connection
- Faulty Reductant Control Module
How to Fix the DTC P205B?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P205B code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Information for Specific Makes
- P205B Audi — Reductant Tank Temperature Sensor Circuit Range/Performance
- P205B Buick — Reductant Tank Temperature Sensor Circuit Range/Performance
- P205B Cadillac — Reductant Tank Temperature Sensor Circuit Range/Performance
- P205B Chevrolet — Reductant Tank Temperature Sensor Circuit Range/Performance
- P205B Dodge — Reductant Tank Temperature Sensor Circuit Range/Performance
- P205B Ford — Reductant Tank Temperature Sensor Circuit Range/Performance
- P205B GMC — Reductant Tank Temperature Sensor Circuit Range/Performance
- P205B Volkswagen — Reductant Tank Temperature Sensor Circuit Range/Performance
Frequently Asked Questions about P205B Code
1. What are the common symptoms of OBDII code P205B (Reductant Tank Temperature Sensor Circuit Range/Performance)?
- Common symptoms include the check engine light illuminating, decreased fuel efficiency, and potential issues with the Selective Catalytic Reduction (SCR) system.
2. What are the possible causes of OBDII code P205B?
- Possible causes include a faulty reductant tank temperature sensor, wiring or connector issues, a defective Powertrain Control Module (PCM), or issues with the reductant tank heater.
3. How can I diagnose the underlying issue causing OBDII code P205B?
- Diagnosing the issue involves using an OBDII scanner to retrieve the trouble codes, performing a visual inspection of the sensor and its wiring, testing the sensor's resistance, and checking for any related system faults.
4. Can I still drive my vehicle with OBDII code P205B?
- It is generally not recommended to drive the vehicle with this code present, as it can lead to increased emissions and potential damage to the SCR system. It is best to address the issue promptly.
5. How can I repair OBDII code P205B?
- Repair options may include replacing the reductant tank temperature sensor, repairing or replacing damaged wiring or connectors, resetting the PCM, or addressing any issues with the reductant tank heater.
6. Are there any DIY tips for troubleshooting OBDII code P205B?
- DIY troubleshooting tips may include checking for loose or damaged wiring, ensuring proper sensor connections, and inspecting the sensor for any physical damage or corrosion.
7. What is the function of the reductant tank temperature sensor in the SCR system?
- The reductant tank temperature sensor monitors the temperature of the reductant fluid (such as DEF) to ensure optimal performance of the SCR system and proper emissions control.
8. How important is it to address OBDII code P205B promptly?
- It is important to address this code promptly to prevent potential damage to the SCR system, ensure proper emissions control, and avoid more costly repairs in the future.
9. Can a faulty reductant tank temperature sensor cause other issues in the vehicle?
- Yes, a faulty sensor can potentially cause issues with the SCR system, affect fuel efficiency, trigger other trouble codes, and impact overall engine performance.
10. How long does it typically take to repair OBDII code P205B?
- The repair time can vary depending on the exact cause of the code and the complexity of the repair. In general, it can take anywhere from a few hours to a day to address the issue effectively.
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