fiat idea 1.4 16v radiator fan always on

[tranky]

Hi to all,
as in the topic about a Fiat Idea 1.4 16v I have a problem with the radiator fan constantly on.
It was tried to change the probe but the problem remains, have been checked the relays but did not seem to be the ones with the problem, we are checking the links, although I don't think those are the problem since the probe works even if the diagnosis I get from the sensors disconnected.
Have you had a similar problem or have any ideas of what and how to intervene?
Diagnosis shows 3 errors:
U1601 ecu..)
P0115 Water temperatures sensor)
P0130 (Lambda 1 signal above catalyser)

[vincenzot]

it happened to me also I changed the water temperature sensor near the intake manifold and seems to go well let me know

[giuseppe89]

Check the engine temperature sensor and connection to it,a defect very common on this engine

[tranky]

Problem solved with control cables to the sensor.. has had some cable with fake contact..
Since it also has to do the update of the sw in the ecu, at the moment the problem is gone also having fascettato the cables.
The mysteries of the fiat!
Thanks guys