P0463 — Fuel Level Sensor Circuit High Input
| Meaning | The engine computer has detected an abnormally high voltage signal coming from the fuel level sensor in your tank. This usually means the sensor circuit is stuck, has a short to power, or the sensor itself is failing to send the correct resistance reading to the dashboard. |
| Family | Powertrain (P) |
Typical symptoms
The low fuel warning light does not turn on when expected
The range computer shows incorrect remaining driving distance
Common causes
Wiring issue or loose connection in the fuel sender circuit
Poor electrical ground connection for the fuel pump module
Internal failure within the instrument cluster
What to do
Frequently asked questions
What does code P0463 mean?
Fuel Level Sensor Circuit High Input. The engine computer has detected an abnormally high voltage signal coming from the fuel level sensor in your tank. This usually means the sensor circuit is stuck, has a short to power, or the sensor itself is failing to send the correct resistance reading to the dashboard.
Can I keep driving with code P0463 active?
Yes, no known limitation
Common causes — P0463
Faulty fuel level sensor inside the fuel tank Wiring issue or loose connection in the fuel sender circuit Poor electrical ground connection for the fuel pump module Internal failure within the instrument cluster
How do you fix code P0463?
You should check the wiring harness and electrical connector near the fuel tank first, as these are often exposed to road debris and moisture. While this fault does not affect the engine's ability to run, you will lose your fuel gauge reading, so you should track your mileage carefully between fill-ups to avoid running out of gas.
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