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 car's computer is saying there's a problem with the wires that control the second fuel pump. It's like when a toy's battery is too strong and makes it act funny.
This code is triggered when the power or voltage in the control circuit for the secondary fuel pump module is higher than expected.
The P027D code indicates that the Engine Control Module (ECM) has detected a high voltage condition in the control circuit of the secondary fuel pump module. This could be due to a short circuit, a faulty pump, or a problem with the ECM itself.
• Check Engine Light is on
• Poor engine performance
• Engine stalling
• Faulty fuel pump module
• Wiring issues such as short circuits
• Faulty ECM
ECM: Engine Control Module
OBD-II: On-Board Diagnostics, Second Generation
• Use an OBD-II scanner to verify the code.
• Inspect the wiring and connectors for damage or corrosion.
• Test the fuel pump module for proper operation.
• Repair or replace damaged wiring.
• Replace the faulty fuel pump module.
• Replace or reprogram the ECM if necessary.
• OBD-II scanner
• Multimeter
• Basic hand tools
$200 - $800
Moderate
• Ford F-150
• Chevrolet Silverado
• Toyota Camry
• Regular maintenance of fuel system components.
• Ensure proper electrical connections.
• Avoid running the vehicle on low fuel frequently.
Engine Performance
• Do not ignore the Check Engine Light.
• Get the vehicle checked by a professional if unsure.
• Regularly inspect and maintain the fuel system.
Check with your vehicle manufacturer for warranty coverage on fuel system components.
This code has been reported in vehicles with aging fuel systems or those with frequent electrical issues.
Moderate – It should be addressed soon to avoid potential engine performance issues.
Driving with a malfunctioning fuel pump can lead to engine stalling, which can be dangerous.
• Engine running
• Fuel system under load
The fuel pump module is typically located in or near the fuel tank.
Q: Can I drive with a P027D code?
A: It's not recommended to drive for long with this code as it can lead to engine performance issues.
Q: How do I reset the P027D code?
A: After repairs, you can use an OBD-II scanner to clear the code, but it will return if the issue is not fixed.
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