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 thinks the sensor that checks how much fuel is in a special fuel tank is reading too high. It's like when your game console says you have more lives than you actually do.
The P2A62 code is triggered when the powertrain control module (PCM) detects a high voltage signal from the Alternative Fuel Tank B Level Sensor, indicating an incorrect fuel level reading.
The Alternative Fuel Tank B Level Sensor is responsible for measuring the fuel level in a secondary or alternative fuel tank. A 'circuit high' condition suggests that the sensor is sending a voltage signal that is higher than the expected range, which could be due to a short circuit, a faulty sensor, or wiring issues.
• Check Engine Light is on
• Inaccurate fuel gauge reading
• Possible fuel odor
• Faulty fuel level sensor
• Short circuit in the sensor wiring
• Poor electrical connection
• Faulty PCM
PCM: Powertrain Control Module, the car's computer that controls engine and transmission functions.
OBD-II: On-Board Diagnostics, a standardized system for self-diagnostics and reporting in vehicles.
• Use an OBD-II scanner to confirm the code.
• Inspect the wiring and connections to the fuel level sensor.
• Test the fuel level sensor for proper operation.
• Check the PCM for faults.
• Repair or replace damaged wiring or connectors.
• Replace the faulty fuel level sensor.
• Reprogram or replace the PCM if necessary.
• OBD-II scanner
• Multimeter
• Basic hand tools
$150 - $400
Moderate
• Chevrolet Volt
• Toyota Prius
• Nissan Leaf
• Regularly inspect wiring for damage.
• Ensure connectors are secure.
• Keep fuel tank clean and free from debris.
Sensor Issue
• Avoid running the vehicle on low fuel until the issue is resolved.
• Have a professional inspect the vehicle if you're unsure about the repairs.
Check with your vehicle's manufacturer for warranty coverage on fuel system components.
This code is relatively uncommon and typically associated with vehicles that use alternative fuels.
Moderate – It is recommended to address this issue soon to avoid potential fuel system problems.
Driving with a faulty fuel level sensor can lead to running out of fuel unexpectedly, which may be dangerous.
• Vehicle ignition in the ON position
• Alternative fuel tank at various levels
The Alternative Fuel Tank B Level Sensor is typically located inside or on top of the secondary fuel tank.
Q: Can I drive with a P2A62 code?
A: While the car may still run, it's best to fix the issue to ensure accurate fuel readings.
Q: How do I reset the P2A62 code?
A: After repairs, use an OBD-II scanner to clear the code from the PCM.
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