Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means there's a problem with the part of the car that controls the valve for the alternative fuel tank. It's like a switch that isn't working right, so the car can't use the alternative fuel properly.
The P2A24 code indicates a low voltage or signal issue in the control circuit for the shutoff valve of the alternative fuel tank.
The P2A24 code is triggered when the Engine Control Module (ECM) detects a low voltage condition in the control circuit of the alternative fuel tank shutoff valve B. This valve is responsible for controlling the flow of alternative fuel, such as natural gas or propane, to the engine.
• Check Engine Light is on
• Reduced engine performance
• Inability to switch to alternative fuel
• Faulty shutoff valve
• Wiring issues such as shorts or open circuits
• Malfunctioning ECM
ECM: Engine Control Module
OBD-II: On-Board Diagnostics II
• Use an OBD-II scanner to confirm the code
• Inspect the wiring and connectors for damage
• Test the shutoff valve for proper operation
• Repair or replace damaged wiring
• Replace the faulty shutoff valve
• Reprogram or replace the ECM if necessary
• OBD-II scanner
• Multimeter
• Wrench set
$150 - $500
Moderate
• Chevrolet Volt
• Toyota Prius (CNG)
• Honda Civic Natural Gas
• Regular inspection of fuel system components
• Ensure proper maintenance of wiring and connectors
• Use quality alternative fuels
Circuit Issue
• Do not ignore the Check Engine Light
• Consult a professional mechanic if unsure
• Avoid using alternative fuel until the issue is resolved
Check vehicle warranty for coverage on fuel system components
This code is more common in vehicles with aftermarket alternative fuel systems.
Moderate – It should be addressed soon to ensure proper fuel system operation.
Operating a vehicle with a malfunctioning alternative fuel system may not comply with emissions regulations.
• Engine running
• Alternative fuel system activated
The alternative fuel tank shutoff valve is typically located near the alternative fuel tank or along the fuel line.
Q: Can I drive my car with this code?
A: It's possible, but not recommended as it may affect fuel efficiency and emissions.
Q: Will this code cause my car to fail an emissions test?
A: Yes, a malfunctioning alternative fuel system can lead to increased emissions.
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