P205D GMC Code - Reductant Tank Temperature Sensor Circuit High Voltage
Quick Answer
The P205D GMC code indicates a problem with the reductant tank temperature sensor circuit registering high voltage. Common causes include Faulty reductant tank temperature sensor, Short circuit in the sensor wiring, Corrosion or damage to sensor connectors. 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
- P205D GMC indicates Reductant Tank Temperature Sensor Circuit High Voltage.
- Common causes
- Common causes include Faulty reductant tank temperature sensor, Short circuit in the sensor wiring, Corrosion or damage to sensor connectors.
- 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.
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Code P205D GMC Description
The P205D GMC code indicates a problem with the reductant tank temperature sensor circuit registering high voltage. The reductant tank temperature sensor is a crucial component of the Selective Catalytic Reduction (SCR) system in modern diesel vehicles. This sensor is responsible for monitoring the temperature of the diesel exhaust fluid (DEF) in the reductant tank, ensuring optimal operation of the SCR system.
Common Causes of P205D GMC
- Faulty reductant tank temperature sensor
- Short circuit in the sensor wiring
- Corrosion or damage to sensor connectors
- ECM software issue
- DEF contamination
Symptoms of P205D GMC
- Check Engine Light illuminated
- Reduced fuel efficiency
- Poor engine performance
- Failed emissions test
- Increased DEF consumption
How to Fix P205D GMC
- Begin by diagnosing the issue using a scan tool to confirm the P205D code.
- Inspect the reductant tank temperature sensor and its wiring for any visible damage or corrosion.
- Test the sensor's resistance and voltage output to determine if it is functioning correctly.
- Replace the reductant tank temperature sensor if it is found to be faulty.
- Clear the fault codes and test drive the vehicle to ensure the issue has been resolved.
Cost to Fix P205D GMC
The cost of repairing a P205D GMC code can vary depending on the specific cause of the issue and the labor rates in your area. In general, replacing the reductant tank temperature sensor can cost between $150 and $300 for parts and labor. Additional costs may be incurred if other components need to be replaced or if further diagnostics are required. It's recommended to consult with a trusted mechanic or dealership to get an accurate estimate for your specific vehicle.
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