Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
The car's computer is saying that a part that helps control how much fuel goes to the engine isn't working because it's not getting any power.
This code indicates that the circuit controlling the fuel volume regulator 'B' is open, meaning there is a break in the electrical circuit or a disconnection.
The P1249 code is triggered when the Engine Control Module (ECM) detects an open circuit in the fuel volume regulator 'B' control circuit. This means that the circuit is not complete, and the ECM cannot control the fuel volume regulator properly.
• Check Engine Light is on
• Poor engine performance
• Decreased fuel efficiency
• Faulty fuel volume regulator
• Broken or damaged wiring
• Faulty ECM
ECM: Engine Control Module, the computer that controls engine functions.
Fuel Volume Regulator: A component that controls the amount of fuel delivered to the engine.
• Use an OBD-II scanner to confirm the code.
• Inspect the wiring and connectors for damage or disconnection.
• Test the fuel volume regulator for proper operation.
• Repair or replace damaged wiring or connectors.
• Replace the faulty fuel volume regulator.
• Reprogram or replace the ECM if necessary.
• OBD-II scanner
• Multimeter
• Basic hand tools
$100 - $500
Moderate
• Ford F-150
• Chevrolet Silverado
• Dodge Ram
• Regularly inspect wiring and connectors for damage.
• Perform routine maintenance on the fuel system.
• Keep the ECM updated with the latest software.
Engine Performance
• Do not ignore the Check Engine Light.
• Get the vehicle diagnosed and repaired promptly.
• Consider professional help for complex electrical issues.
Check with your vehicle manufacturer for warranty coverage on engine components.
The P1249 code has been associated with issues in vehicles with complex fuel delivery systems, often due to electrical faults.
Moderate – It should be addressed soon to prevent further engine performance issues.
Driving with a malfunctioning fuel system can lead to increased emissions and may not comply with emission regulations.
• Engine running
• Use of diagnostic tools
The fuel volume regulator is typically located near the fuel rail or within the fuel pump assembly.
Q: Can I drive my car with a P1249 code?
A: It's not recommended to drive for long with this code as it can lead to poor engine performance and increased emissions.
Q: How can I reset the P1249 code?
A: After repairs, the code can be cleared using an OBD-II scanner, but ensure the issue is fixed first.
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