P2410Fuel Cap Sensor/Switch Circuit Low
- 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
- P2410 reports that the fuel cap sensor or switch circuit is held below its expected voltage window. Depending on how the switch is wired, this can mean a signal wire shorted to ground, a switch that is permanently closed to ground, or a sensor with a failed supply. No manufacturer publicly documents this code or its threshold; the evidence for the function itself comes from pressure-based cap checks such as Ford's P0457 logic, which watches tank vacuum after refuelling and triggers a separate Check Fuel Cap lamp. CARB requires electrical input circuits of emission-related components to be monitored for readings outside their range. P2411 is the high-voltage counterpart, P2408 the unspecified circuit fault. Expect a warning lamp and possibly an EVAP test that does not run; driving is unaffected.
- What you may notice
- Check engine light
- Fuel cap warning stays on or never appears
- Likely causes
- LikelySignal wire shorted to ground at the filler neck
- PossibleSwitch internally shorted
- RareMissing supply voltage to the sensor
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Easy · Often possible to do yourself.Typical cost: €20 – €200
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.