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 special insulation in the alternative fuel tank, which helps keep the fuel at the right temperature, isn't working as well as it should.
The vehicle's computer has detected that the vacuum insulation in the alternative fuel tank is not maintaining the required insulation properties.
The P2CDA code is triggered when the Engine Control Module (ECM) detects that the vacuum insulation in Alternative Fuel Tank A has deteriorated. This insulation is crucial for maintaining the temperature and pressure of the fuel, ensuring efficient fuel usage and safety.
• Check Engine Light is on
• Reduced fuel efficiency
• Possible fuel odor
• Deterioration of vacuum insulation material
• Leaks in the fuel tank
• Faulty sensor readings
ECM: Engine Control Module
Vacuum Insulation: A type of insulation that uses a vacuum to reduce heat transfer
• Check for any visible damage to the fuel tank
• Inspect vacuum insulation for leaks or deterioration
• Test sensors related to the fuel tank
• Replace deteriorated insulation material
• Repair any leaks in the fuel tank
• Replace faulty sensors
• OBD-II scanner
• Vacuum gauge
• Insulation repair kit
$200 - $600
Moderate
• Toyota Prius
• Honda Clarity
• Chevrolet Volt
• Regular inspection of the fuel tank
• Timely maintenance of the fuel system
• Use of high-quality fuel
Fuel System Issue
• Avoid driving with a full tank if the issue persists
• Schedule a service appointment promptly
Check with the vehicle manufacturer for warranty coverage on fuel system components.
This code has become more prevalent with the increased use of alternative fuel vehicles that rely on vacuum-insulated tanks.
Moderate – It should be addressed soon to prevent fuel efficiency loss and potential safety issues.
Driving with a deteriorated fuel tank insulation could lead to safety hazards and is not recommended.
• Vehicle at operating temperature
• Fuel tank at least half full
The alternative fuel tank is typically located at the rear of the vehicle, underneath the trunk area.
Q: Can I drive with a P2CDA code?
A: It's not recommended to drive for extended periods with this code active, as it can affect fuel efficiency and safety.
Q: How do I know if my fuel tank insulation is deteriorated?
A: A professional inspection is required, but symptoms include reduced fuel efficiency and a check engine light.
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