Fuel Level Sensor Range/Performance Problem
The vehicle's computer detected an issue with the fuel level sensor's reading.
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 is either sending the wrong voltage (like under 0.5V or over 3.5V) or not responding properly, which makes the computer think there's a problem with how much fuel is in the tank.
What the computer is actually seeing
The fuel level sensor should provide a voltage signal between 0.5V (empty) and 4.5V (full). If signals fall outside this range, a fault code is generated.
What a healthy reading looks like
0.5V (empty) to 4.5V (full); typical values in operation should be around 1V when the tank is low and 3.5V when nearly 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 sensor connector for corrosion or damage. Repair if necessary. Decision: If connector is good, proceed to step 2.
- 22. Measure the voltage at the fuel level sensor input. With the key on, engine off, you should see a voltage between 0.5V and 4.5V. Decision: If voltage is out of range, check wiring to the fuel sender; if in range, replace the sensor.
- 33. Inspect the wiring from the fuel level sensor to the PCM for shorts or breaks. Repair any issues found. Decision: If no issues in wiring, replace the fuel level sensor.
Common causes
- Faulty fuel level sensor
- Wiring issues (shorts, opens)
- Poor connection at the fuel sender connector
- Faulty PCM (less common)
Typical repair cost
$$
Related codes
Frequently asked questions
Is it safe to drive with this code?
While the vehicle is drivable, you might run out of fuel unexpectedly since the gauge may not show the correct level.
Will the code come back after clearing it?
Yes, if there's an underlying issue like a bad sensor or wiring, the code will likely return.
Why does this code pair with other codes?
Related codes often indicate similar sensor or wiring issues that affect fuel level monitoring.
Working a real vehicle right now?
Let DiagCoach walk you through it live with your specific symptoms, vehicle, and what you've already checked.
Start guided diagnostic →