Technical Heater gauge does not rise with temperature increase.

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Technical Heater gauge does not rise with temperature increase.

Pinpoint

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May 28, 2023
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Hello All,

I am an AC engineer and whilst on a job, I was asked oif I could take a look at a 2008 Fiat Ducato 40 MAXI 130 M-Jet.
The issue is the temp gauge needle is not responding to any change in coolant temperature.
I think there are two sensors, one for the ECU to drive the fans and the other to the gauge in the dash console.
Is it possible to have the locations of both sensors, and any schematic for the gauge wiring.
Thank you all in advance, I am doing this as a favour to the owner, as he is going to France next week, and is concerned about driving his camper van.

Cheers, Jon
 
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