P25DBFuel Level Sensor C Circuit Intermittent
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- How the car detects it
- P25DB describes short, repeated dropouts in the third fuel level input: the signal leaves its valid range for moments and returns, rather than staying low or high. Typical culprits are a loose pin, a wire that breaks contact only when the vehicle flexes or the tank moves, and a sender whose wiper briefly lifts off the resistor track over rough roads. No manufacturer documents P25DB publicly. Ford does not use a separate intermittent code for senders A and B; it catches short-term jumps through its noisy-signal check (more than 100 jumps of over 40 % at 0.1 s sampling) under the performance codes, which is the closest documented logic. Under CARB this input falls under mandatory supervision as well. The gauge may flicker or briefly fall to empty, and the fault can be hard to reproduce in the workshop.
- What you may notice
- Fuel gauge flickers or drops briefly to empty
- Check engine lamp may come and go
- Likely causes
- LikelyLoose or spread terminal in the sender C connector
- PossibleWire breaking contact when the frame or tank moves
- PossibleSender wiper lifting off a worn resistor track
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Medium · Often possible to do yourself.Typical cost: €50 – €600
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.