Fuel Level Sensor Malfunction
The fuel level sensor is reporting an incorrect fuel level.
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What it means (plain English)
The fuel level sensor measures how much fuel is in the tank, but it’s sending bad info to the computer.
What the computer is actually seeing
The engine control module (ECM) expects the fuel level to be within a specific range depending on the tank's actual quantity, typically between 0 to 200 ohms for a good sensor reading.
What a healthy reading looks like
Expected resistance values from the fuel level sensor should be between 0 to 200 ohms; 0 ohms means the tank is empty, and 200 ohms means it's 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 wiring and connectors for the fuel level sensor. Repair any damage found.
- 2Use a multimeter to test the resistance of the fuel level sensor. It should show between 0-200 ohms. If not, replace the sensor.
- 3Inspect the fuel tank for physical damage or obstructions affecting the sensor. Remove if necessary.
- 4Check the ECM for software updates or error codes related to fuel measurement. Clear codes and retest.
Common causes
- Faulty fuel level sensor
- Wiring issues (damaged or corroded)
- Bad connectors at the sensor
- ECM software glitch
Typical repair cost
$$
Related codes
Frequently asked questions
Is it safe to drive with this code?
Yes, it's drivable, but you may not have a reliable fuel gauge.
Will this code come back after clearing?
It may, if the underlying issue isn't resolved.
Why does this code appear with SPN 1515?
SPN 1515 also relates to fuel level readings, indicating simultaneous sensor issues.
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