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 has detected a problem with the backup circuit that helps power the fuel pump. It's like when a backup battery in a toy isn't working, so the toy might not work right.
The P023F code indicates an issue with the secondary circuit of the fuel pump, which may be open or not functioning properly.
The fuel pump is responsible for delivering fuel from the tank to the engine. The secondary circuit is a backup or auxiliary circuit that helps ensure the fuel pump operates correctly. An open circuit means there is a break or disconnection in the wiring or components that make up this circuit.
• Engine stalling
• Difficulty starting the engine
• Reduced engine performance
• Faulty fuel pump relay
• Damaged wiring or connectors
• Malfunctioning fuel pump control module
Fuel Pump: A device that transfers fuel from the tank to the engine.
Circuit: A complete and closed path around which a circulating electric current can flow.
• Check for any blown fuses related to the fuel pump circuit.
• Inspect the wiring and connectors for damage or corrosion.
• Test the fuel pump relay and control module for proper operation.
• Replace any blown fuses.
• Repair or replace damaged wiring or connectors.
• Replace the faulty fuel pump relay or control module.
• Multimeter
• OBD-II scanner
• Wiring diagram
$100 - $500
Moderate
• Ford F-150
• Chevrolet Silverado
• Toyota Camry
• Regularly inspect and maintain the fuel system.
• Ensure all electrical connections are secure and free of corrosion.
• Replace fuel filters as recommended by the manufacturer.
Engine Performance
• Do not ignore the check engine light.
• Have the vehicle inspected by a professional mechanic if unsure.
• Avoid driving the vehicle if it stalls frequently.
Check with the vehicle manufacturer for warranty coverage on fuel system components.
This code has been associated with issues in vehicles with complex fuel delivery systems, particularly those with electronic fuel pumps.
Moderate – While the vehicle may still run, ignoring this issue can lead to more severe engine performance problems.
Ensure all repairs are conducted in accordance with local laws and safety regulations. Improper handling of fuel systems can be hazardous.
• Engine running
• Fuel system under load
The fuel pump is typically located inside the fuel tank, while the control module and relay may be located in the engine bay or near the fuse box.
Q: Can I drive with a P023F code?
A: It's not recommended to drive with this code active, as it can lead to engine performance issues or stalling.
Q: How can I reset the P023F code?
A: After fixing the issue, you can reset the code using an OBD-II scanner. However, if the problem persists, the code will reappear.
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