Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means that the special fluid used to clean the car's exhaust isn't working right. It's like when you use soap to wash your hands, but the soap isn't doing a good job.
The P207F code is triggered when the vehicle's control module detects that the quality of the diesel exhaust fluid (DEF) is not up to standard.
The P207F code indicates an issue with the quality of the reductant, commonly known as Diesel Exhaust Fluid (DEF), which is used in the Selective Catalytic Reduction (SCR) system to reduce NOx emissions in diesel engines. The Engine Control Module (ECM) monitors the quality of the DEF through sensors and, if it detects contamination, incorrect concentration, or other issues, it triggers this code.
• Check Engine Light is on
• Reduced engine performance
• Increased emissions
• Contaminated DEF
• Incorrect DEF concentration
• Faulty DEF quality sensor
DEF: Diesel Exhaust Fluid, a liquid used to reduce emissions in diesel engines.
SCR: Selective Catalytic Reduction, a system that uses DEF to reduce NOx emissions.
• Check the DEF tank for contamination.
• Test the DEF quality sensor.
• Verify the concentration of DEF.
• Replace contaminated DEF.
• Repair or replace the DEF quality sensor.
• Ensure correct DEF concentration.
• OBD-II scanner
• DEF refractometer
• Multimeter
$150 - $500
Moderate
• Ford F-250
• Chevrolet Silverado 2500
• Ram 2500
• Use high-quality DEF.
• Regularly check DEF levels.
• Avoid contamination of DEF tank.
Emission Control
• Use DEF from reputable sources.
• Regularly service your vehicle's emission system.
Check with your vehicle manufacturer for warranty coverage on emission-related components.
This code has become more common as stricter emission standards have been enforced, requiring more precise control of DEF quality.
Moderate – Addressing this issue promptly can prevent further emission system damage and ensure compliance with emission standards.
Operating a vehicle with this code may result in non-compliance with emission regulations and can lead to fines in certain areas.
• Engine running at operating temperature
• Vehicle driven at highway speeds
The DEF tank is usually located near the fuel tank, and the quality sensor is mounted within or near the DEF tank.
Q: What happens if I ignore the P207F code?
A: Ignoring this code can lead to increased emissions and potential fines for non-compliance with environmental regulations.
Q: Can I fix the P207F code myself?
A: If you're comfortable checking and replacing DEF, you might resolve the issue. However, diagnosing sensor problems may require professional help.
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