Ds5 fuel temperature location? Where can I find it?

[happytoon]

I have DS5 2013 2.0 HDI

I have an ODB code of P0181 fuel temperature out of range.
Last time, the sensor was simply disconnected (fixed FOC during a visual inspection by the garage)
Today after a road pothole I got the same error and behaviour.
I would like to check if it is disconnected again (avoiding having to go to the guarage once again as I urgently need my car).

Where do I find the sensor please?
Engine?
Fuel tank pump? (where is it (nothing I can see under the rear seats)

Please let me know ASAP if you know.
Thanks.