P2A62
Alternative Fuel Tank B Level Sensor Circuit High
What it means
P2A62 means Alternative Fuel Tank B Level Sensor Circuit High.
Where it lives
For P2A62, the sensor sits on the circuit this code reports. The description of P2A62 reports a fault at the sensor.
Check these first
- A short to voltage on the alternative fuel tank B level sensor signal
- An open ground on the tank B level sensor return
- A failed tank B level sensor reading high
- Corrosion in the tank B level sensor connector
- A tank B float stuck at the top of its travel
What to do next
- Read alternative fuel tank B level on a scan tool
- Test the tank B level sensor signal for a short to voltage
- Check the tank B level sensor ground and connector
- Sweep the tank B float to check for a mechanical stick
- Replace the tank B level sensor if the circuit tests good
- Clear the code and retest
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Updated
Generic SAE J2012 definition. Last updated 2026-10-10.