Fuel Level Sensor Circuit Range/Performance Problem
Fuel level sensor is reporting an out-of-range signal.
Heads up: this code wasn't in our hand-written library yet, so DiagCoach AI built this page on the fly. Double-check critical specs against service info before condemning parts.
What it means (plain English)
The fuel level sensor in the tank isn't giving a correct reading, possibly due to a faulty sensor or wiring issue.
What the computer is actually seeing
The fuel level sensor is expected to send a voltage signal between 0.5V (empty) and 4.5V (full). If the signal is below 0.5V or above 4.5V, the PCM registers a fault.
What a healthy reading looks like
Expected voltage from fuel level sensor: 0.5V (empty) to 4.5V (full).
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 in the tank. Is it above the 1/4 mark? If no, fill the tank and see if the code clears.
- 22. Inspect the wiring and connectors at the fuel level sensor for damage or corrosion. Are they in good condition? If no, repair/replace as needed.
- 33. Measure the voltage at the fuel level sensor connector with the key on, engine off. Is it within the expected range (0.5V - 4.5V)? If no, further diagnose wiring or PCM issues.
- 44. If the voltage is within range but the code persists, replace the fuel level sensor.
Common causes
- Faulty fuel level sensor
- Wiring issues or shorts in the connector
- Faulty PCM (rare)
- External contamination affecting sensor performance
Typical repair cost
$$$
Related codes
Frequently asked questions
Can I still drive with this code active?
Yes, but expect potential incorrect fuel gauge readings, which could lead to running out of fuel unexpectedly.
Will this code come back after resetting?
If the underlying issue isn't fixed, the code will likely return.
Why am I getting this code along with a check engine light?
This code indicates an inaccurate fuel reading, often linked with other diagnostics that may be affecting fuel system performance.
Working a real vehicle right now?
Let DiagCoach walk you through it live with your specific symptoms, vehicle, and what you've already checked.
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