Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means the car's computer is having trouble reading how much fuel is in the second alternative fuel tank. It's like when a video game can't tell how many lives you have left.
The vehicle's computer has detected a low voltage signal from the level sensor circuit for the alternative fuel tank B, indicating a potential issue with the sensor or wiring.
The P2A61 code is triggered when the Powertrain Control Module (PCM) detects a low voltage condition in the circuit for the alternative fuel tank B level sensor. This sensor is responsible for measuring the amount of fuel in the tank and sending this information to the PCM. A low voltage condition may indicate a problem with the sensor itself, the wiring, or the connectors.
• Check Engine Light is on
• Inaccurate fuel level readings
• Possible fuel gauge malfunction
• Faulty alternative fuel tank B level sensor
• Damaged or corroded wiring or connectors
• PCM malfunction
PCM: Powertrain Control Module
OBD-II: On-Board Diagnostics, Second Generation
• Use an OBD-II scanner to confirm the code.
• Inspect the wiring and connectors for damage or corrosion.
• Test the alternative fuel tank B level sensor for proper operation.
• Replace the faulty fuel level sensor.
• Repair or replace damaged wiring or connectors.
• Reprogram or replace the PCM if necessary.
• OBD-II scanner
• Multimeter
• Basic hand tools
$150 - $500
Moderate
• Chevrolet Volt
• Toyota Prius
• Nissan Leaf
• Regular maintenance checks
• Ensure connectors are clean and secure
• Avoid overfilling the fuel tank
Sensor Issue
• Have the vehicle checked by a professional mechanic.
• Do not ignore the Check Engine Light.
Check with the vehicle manufacturer for warranty coverage on emissions-related components.
This code is relatively uncommon and typically associated with vehicles using alternative fuels.
Moderate – It should be addressed soon to avoid potential fuel management issues.
Ignoring this code could lead to inaccurate fuel readings, potentially causing a vehicle to run out of fuel unexpectedly.
• Vehicle must be running
• Fuel tank B should have fuel
The alternative fuel tank B level sensor is usually located inside the fuel tank or attached to it.
Q: Can I drive with the P2A61 code?
A: It's possible to drive, but you may experience inaccurate fuel readings, which could lead to running out of fuel unexpectedly.
Q: How do I reset the Check Engine Light after fixing the issue?
A: Use an OBD-II scanner to clear the code, or disconnect the battery for a few minutes to reset the system.
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