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 part of the car that helps reduce pollution isn't working right because it's not getting enough power.
The reductant pump is responsible for delivering diesel exhaust fluid (DEF) to the exhaust system to reduce emissions. This code indicates that the current to the pump is lower than expected, suggesting a possible electrical issue.
The P2C11 code is triggered when the Engine Control Module (ECM) detects that the current supplied to the reductant pump is below the specified threshold. This could be due to a faulty pump, wiring issues, or a problem with the ECM itself.
• Check Engine Light is on
• Poor emissions performance
• Possible reduction in engine power
• Faulty reductant pump
• Damaged wiring or connectors
• Faulty ECM
Reductant Pump: A component that delivers DEF to the exhaust system to reduce emissions.
DEF: Diesel Exhaust Fluid, a fluid used to reduce emissions in diesel engines.
• Use an OBD-II scanner to confirm the code.
• Inspect the wiring and connectors for damage or corrosion.
• Test the reductant pump for proper operation.
• Replace or repair damaged wiring or connectors.
• Replace the reductant pump if faulty.
• Reprogram or replace the ECM if necessary.
• OBD-II scanner
• Multimeter
• Basic hand tools
$200 - $600
Moderate
• Ford F-250
• Chevrolet Silverado
• Ram 2500
• Regularly inspect and maintain the DEF system.
• Ensure proper DEF fluid levels.
• Check wiring and connectors for signs of wear.
Sensor Issue
• Address this issue promptly to avoid further emissions problems.
• Consult a professional mechanic if unsure about repairs.
Check with your vehicle manufacturer for warranty coverage on emissions-related components.
This code has become more common with the increased use of DEF systems in diesel vehicles to meet emissions standards.
Moderate – It affects emissions and should be addressed to ensure compliance with regulations.
Driving with emissions-related issues may be illegal in some areas and can lead to fines or penalties.
• Engine running
• DEF system active
The reductant pump is typically located near the DEF tank, often under the vehicle.
Q: Can I drive with a P2C11 code?
A: It's not recommended to drive for extended periods with this code, as it affects emissions and could lead to further issues.
Q: How do I reset the Check Engine Light after fixing the issue?
A: Use an OBD-II scanner to clear the code after repairs are completed.
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