Fuel Level Sensor Circuit High
The Fuel Level Sensor is reporting a voltage that is too high.
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What it means (plain English)
The fuel level sensor measures the amount of fuel in the tank. When it sends back a voltage higher than what it should, the computer thinks there's an issue with the sensor or its wiring.
What the computer is actually seeing
The onboard computer expects a voltage between 0.5V (empty) and 2.0V (full) from the fuel level sensor. A voltage reading above 2.0V triggers this code.
What a healthy reading looks like
0.5V to 2.0V from the fuel level sensor at various fuel levels.
Guided diagnostic — the DiagCoach way
Don't just throw parts at it. Walk through these in order — each step tells you whether to keep going or stop and fix what you found.
- 11. Check the fuel level sensor wiring for damage or corrosion.
- 22. Measure the voltage at the fuel level sensor connector with the key on (engine off). Expect between 0.5V and 2.0V based on fuel level.
- 33. If voltage is above 2.0V, check for a short to power in the wiring.
- 44. If wiring looks good, replace the fuel level sensor and clear the fault code.
- 55. Recheck the voltage after replacement to verify if it returns to the correct range.
- 66. If the problem persists, consider checking the ECM for faults.
Common causes
- Faulty fuel level sensor
- Corroded or damaged wiring to the sensor
- Short circuit in the sensor circuit
- Faulty engine control module (ECM)
Typical repair cost
$$
Related codes
Frequently asked questions
Can I drive my vehicle with this code?
Yes, but fuel gauge may misreport, and you could run out of fuel unexpectedly.
Will this code come back after fixing?
If the underlying issue is resolved, the code should stay cleared.
Does this issue relate to fuel delivery problems?
Not directly, but if the sensor fails, it may lead to fueling issues.
Working a real vehicle right now?
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