P20C6 Code - Reductant Heater 'D' Control Circuit Performance
Quick Answer
The P20C6 diagnostic trouble code (DTC) refers to the Reductant Heater 'D' Control Circuit Performance. Common causes include Faulty reductant heater 'D', Wiring or connector issues in the control circuit, Defective reductant temperature sensor. 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
- P20C6 indicates Reductant Heater 'D' Control Circuit Performance.
- Common causes
- Common causes include Faulty reductant heater 'D', Wiring or connector issues in the control circuit, Defective reductant temperature sensor.
- 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 P20C6 Description
The P20C6 diagnostic trouble code (DTC) refers to the Reductant Heater 'D' Control Circuit Performance. This code is related to the reductant system, which is part of the vehicle's emissions control system. The reductant system uses a special fluid known as Diesel Exhaust Fluid (DEF) to reduce harmful emissions from the exhaust gases by converting nitrogen oxides (NOx) into harmless nitrogen and water vapor.
Common Causes of P20C6
- Faulty reductant heater 'D'
- Wiring or connector issues in the control circuit
- Defective reductant temperature sensor
- ECM (Engine Control Module) software update required
- Malfunctioning NOx sensor
Symptoms of P20C6
- Check engine light illuminated
- Reduced fuel efficiency
- Engine misfires or hesitation
- Failed emissions test
- Reduced engine power
How to Fix P20C6
- Begin by using a diagnostic scanner to verify the P20C6 code and pinpoint the exact cause of the issue.
- Inspect the reductant heater 'D' and its wiring for any visible damage or corrosion. Replace any damaged components.
- Check the reductant temperature sensor and NOx sensor for proper operation. Replace as necessary.
- Perform a software update on the ECM to ensure compatibility with the reductant system.
- Clear the DTC and test drive the vehicle to verify that the issue has been resolved.
Cost to Fix P20C6
The typical repair costs for addressing the P20C6 code can vary depending on the specific cause of the issue. In general, the cost of parts for replacing the reductant heater 'D', sensors, or wiring can range from $100 to $500. Additionally, labor costs for diagnosing and repairing the problem can range from $100 to $500. Overall, the total repair cost for addressing the Reductant Heater 'D' Control Circuit Performance code can range from $200 to $1000. It is recommended to consult with a trusted mechanic or auto repair shop to get a more accurate estimate based on your specific vehicle make and model. Labor rates at auto repair shops typically range from $80 to $150 per hour, but can vary based on location and other factors.
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Code P20C6 Information for Specific Makes
- P20C6 Chevrolet — Reductant Heater 'D' Control Circuit Performance
- P20C6 Ford — Reductant Heater 'D' Control Circuit Performance
- P20C6 GMC — Reductant Heater 'D' Control Circuit Performance
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