P20B6 Dodge Code - Diesel Exhaust Fluid Reductant Pump Heater Control Performance
Quick Answer
The P20B6 diagnostic trouble code for Dodge vehicles specifically pertains to the Diesel Exhaust Fluid (DEF) Reductant Pump Heater Control Performance. Common causes include Faulty Reductant Pump Heater Control Module: A malfunctioning control module can trigger the P20B6 trouble code, Wiring Issues: Poor electrical connections or damaged wiring related to the reductant pump heater control system can also cause this code, DEF Fluid Contamination: Contaminated DEF fluid can lead to issues with the SCR system, triggering the P20B6 code. 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
- P20B6 Dodge indicates Diesel Exhaust Fluid Reductant Pump Heater Control Performance.
- Common causes
- Common causes include Faulty Reductant Pump Heater Control Module: A malfunctioning control module can trigger the P20B6 trouble code, Wiring Issues: Poor electrical connections or damaged wiring related to the reductant pump heater control system can also cause this code, DEF Fluid Contamination: Contaminated DEF fluid can lead to issues with the SCR system, triggering the P20B6 code.
- 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 P20B6 Dodge Description
The P20B6 diagnostic trouble code for Dodge vehicles specifically pertains to the Diesel Exhaust Fluid (DEF) Reductant Pump Heater Control Performance. This code indicates that there is an issue with the reductant pump heater control system, which is responsible for heating the DEF fluid in the Selective Catalytic Reduction (SCR) system. The SCR system is crucial for reducing harmful emissions and ensuring compliance with emissions regulations.
Common Causes of P20B6 Dodge
- Faulty Reductant Pump Heater Control Module: A malfunctioning control module can trigger the P20B6 trouble code.
- Wiring Issues: Poor electrical connections or damaged wiring related to the reductant pump heater control system can also cause this code.
- DEF Fluid Contamination: Contaminated DEF fluid can lead to issues with the SCR system, triggering the P20B6 code.
- Software or Calibration Problems: Issues with the software or calibration of the reductant pump heater control system can also be a potential cause.
Symptoms of P20B6 Dodge
- Illuminated Check Engine Light: The most common symptom associated with the P20B6 code is the illumination of the check engine light on the vehicle's dashboard.
- Reduced Fuel Efficiency: A decrease in fuel efficiency may be noticed due to the inefficient operation of the SCR system.
- Failed Emissions Test: If the issue is not addressed, it can lead to the vehicle failing emissions tests due to increased emissions.
- Engine Performance Issues: The vehicle may experience reduced engine performance, including decreased power and responsiveness.
How to Fix P20B6 Dodge
- Diagnose the Issue: Use a diagnostic scanner to retrieve the trouble code and identify the specific cause of the problem.
- Inspect Wiring and Connections: Check the wiring and connections related to the reductant pump heater control system for any damage or corrosion.
- Test the Reductant Pump Heater Control Module: Verify the functionality of the control module and replace it if necessary.
- Flush and Refill DEF Fluid: If the DEF fluid is contaminated, flush the system and refill it with clean DEF fluid.
- Clear Codes and Test Drive: Clear the trouble code from the vehicle's computer, perform a test drive to ensure the issue is resolved, and verify that the check engine light does not reappear.
Cost to Fix P20B6 Dodge
The typical repair costs for addressing the P20B6 code can vary depending on the specific cause of the issue and the labor rates in your area. In general, the cost of replacing the reductant pump heater control module and addressing any wiring issues can range from $200 to $500. Additional costs may be incurred if DEF fluid needs to be flushed and refilled. It's important to note that labor rates at auto repair shops can vary between $80 and $150 per hour, so it's advisable to check with local shops for a more accurate estimate based on your location and vehicle model.
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