P20C8 Ford Code - Reductant Heater 'D' Control Circuit High
Quick Answer
The P20C8 diagnostic trouble code (DTC) for Ford vehicles indicates an issue with the reductant heater 'D' control circuit being too high. Common causes include Faulty reductant heater 'D', Wiring issues or corroded connectors, Defective SCR system control module. 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
- P20C8 Ford indicates Reductant Heater 'D' Control Circuit High.
- Common causes
- Common causes include Faulty reductant heater 'D', Wiring issues or corroded connectors, Defective SCR system control module.
- 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 P20C8 Ford Description
The P20C8 diagnostic trouble code (DTC) for Ford vehicles indicates an issue with the reductant heater 'D' control circuit being too high. The reductant heater is an essential component of the Selective Catalytic Reduction (SCR) system, which helps reduce harmful emissions from the vehicle's exhaust. The SCR system uses a reductant, typically urea-based diesel exhaust fluid (DEF), to convert nitrogen oxides (NOx) into nitrogen gas and water vapor.
Common Causes of P20C8 Ford
- Faulty reductant heater 'D'
- Wiring issues or corroded connectors
- Defective SCR system control module
- Faulty temperature sensors
- Software issues with the vehicle's engine control module (ECM)
Symptoms of P20C8 Ford
- Check engine light illuminated
- Decreased fuel efficiency
- Reduced engine performance
- Increased emissions output
- Rough idling or stalling
How to Fix P20C8 Ford
- Diagnose the root cause of the issue by using a scan tool to retrieve the DTC and inspecting the reductant heater 'D' circuit for any visible damage.
- Check the wiring and connectors for signs of corrosion or damage, repairing or replacing as necessary.
- Test the reductant heater 'D' for functionality and replace if found to be faulty.
- Inspect the SCR system control module and temperature sensors for any issues and replace if necessary.
- Clear the DTC and reset the vehicle's ECM to ensure the issue has been resolved.
Cost to Fix P20C8 Ford
The typical repair costs for addressing a P20C8 DTC can vary depending on the specific cause of the issue and the extent of the repairs needed. In general, the cost of parts for a reductant heater replacement can range from $200 to $500, while labor costs can add an additional $100 to $200. Overall, the total repair cost for this issue could range from $300 to $700, but it is advisable to check with local auto repair shops for more accurate estimates based on your vehicle make and model. Keep in mind that diagnostic time and labor rates can vary, so it's best to shop around for the most competitive pricing.
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