P0460Fuel Level Sensor A Circuit
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Needs a drive cycle to confirm a fix
- How the car detects it
- The fuel level sensor is a float on a resistor track in the tank unit. It is no emission part, but other monitors depend on it – the EVAP leak tests, for example, need at least 15 % fuel – so CARB requires it to be monitored and the usual exemption from the warning lamp does not apply. P0460 is the general circuit code for sensor A, the main or only fuel level sensor. Ford sets it instead of P0462/P0463 below 5 Ω or above 200 Ω for 30 s and until about 2012 also used it for a stuck sensor (fuel use compared over 100–120 miles); Saab's Trionic T8 uses it for a sensor that does not change. GM does not use P0460. The gauge then shows wrong values or a substitute, and level-dependent monitors do not run.
- What you may notice
- Fuel gauge wrong, stuck or jumping
- Range display and low-fuel warning wrong
- Check engine light (depending on the maker)
- Likely causes
- LikelyResistor track worn or float arm sticking
- PossibleWire or connector at the tank unit open or shorted (corrosion)
- RareInstrument cluster or gateway sends a wrong value (if the level comes via the bus)
- RareFrequent topping up or overfilling (plausibility test fails without a defect)
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Medium · Usually a job for a workshop.Typical cost: €80 – €600
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.