Fuel Level Sensor Problem
Indicates a fault in the fuel level sensor circuit.
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 isn't reading the fuel level correctly, which can cause inaccurate fuel gauge readings.
What the computer is actually seeing
The engine control unit (ECU) checks input from the fuel level sensor, which sends varying resistances based on the fuel level. Normally, resistance varies from around 5 ohms (full tank) to around 240 ohms (empty tank).
What a healthy reading looks like
Expect resistance values between 5 to 240 ohms depending on the fuel level.
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. Inspect the wiring and connectors at the fuel level sensor for any obvious damage or corrosion. - Decision: If any damage is found, repair it and retest. If no damage, proceed to Step 2.
- 22. Using a multimeter, measure the resistance at the fuel level sensor connector. - Expected: 5-240 ohms based on fuel level. - Decision: If outside this range, replace the fuel level sensor. If within range, proceed to Step 3.
- 33. Check for fault codes in the ECU; ensure there's no additional trouble indicating an ECU issue. - Decision: If ECU shows additional related codes, further diagnosis of the ECU is required. If no other codes, the problem is likely sensor-related.
Common causes
- Faulty fuel level sensor
- Wiring issues (shorts or breaks)
- Corroded connectors
- ECU malfunction
Typical repair cost
$$$
Related codes
Frequently asked questions
Is it safe to drive with this code?
Yes, but monitor fuel gauge accuracy and refill as necessary to avoid running out of fuel.
If I clear the code, will it return?
It may return if the underlying issue isn't fixed.
Why does this code sometimes show up with low fuel levels?
Low fuel may cause intermittent sensor readings, triggering this fault.
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