Low Fuel Level Warning Signal Fault
The system detects an issue with the low fuel level warning 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 computer isn’t getting a proper signal from the fuel level sensor, which tells it how much fuel is in the tank.
What the computer is actually seeing
The Body Control Module (BCM) expects a fuel level signal between 0.5 volts (empty) and 4.5 volts (full) based on the fuel tank's position, but is receiving a value outside this range.
What a healthy reading looks like
Fuel level sensor should output a voltage between 0.5V (empty) and 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.
- 1Check the fuel gauge reading on the instrument cluster to confirm if it shows empty or false readings.
- 2Inspect the fuel level sensor wiring for integrity and connections. Look for corrosion or damage.
- 3Measure the voltage output from the fuel level sensor with the key in the ON position; expected range is 0.5V to 4.5V. If it's outside, replace the sensor.
- 4If the sensor checks out, inspect the BCM for faults or corrosion on connectors.
Common causes
- Faulty fuel level sensor
- Wiring issues or short circuits
- Connector problems at the sensor or BCM
- Low fuel in the tank causing erratic readings
Typical repair cost
$$
Related codes
Frequently asked questions
Is it safe to drive with this code?
Yes, but keep an eye on your fuel gauge as it may not be accurate.
Will this problem come back if I clear the code?
If the underlying issue isn’t fixed, it will likely return.
Could this code be related to other electrical issues?
Yes, it can indicate broader electrical problems, especially in wiring or connections.
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