Fuel Level Sensor Voltage Range Problem
Indicates a fault in the fuel level sensor system.
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What it means (plain English)
The fuel level sensor is sending a voltage reading that doesn't match the expected range, which can cause incorrect fuel level readings on your gauge.
What the computer is actually seeing
The engine control module (ECM) expects the fuel level sensor to output a voltage between 0.5V (empty) to 4.5V (full). If it detects a voltage outside this range (like 0V or over 4.5V), it triggers the code.
What a healthy reading looks like
0.5V to 4.5V for fuel level sensor output, corresponding to empty and full respectively.
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. If below minimum level, fill the tank and see if the code clears.
- 22. Inspect the wiring and connectors at the fuel level sensor for damage or corrosion. Repair any issues found.
- 33. With a multimeter, test the voltage at the fuel level sensor. Expected values are 0.5V to 4.5V; anything outside indicates a fault.
- 44. If voltage is correct, but the code persists, consider replacing the fuel level sensor.
Common causes
- Faulty fuel level sensor
- Wiring issues (shorts or opens)
- Connector problems (corrosion or loose connections)
Typical repair cost
$$
Related codes
Frequently asked questions
Is it safe to drive with this code?
Yes, but expect possible incorrect fuel readings; fill the tank regularly to avoid running out.
Will this code come back after clearing?
It might if the underlying issue isn't fixed, like a faulty sensor or wiring problem.
Why does this code pair with other codes?
It often points to issues in the fuel system, which can be interconnected with the performance of related components.
Working a real vehicle right now?
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