Technical Oil temperature sensor

[Martynedwards]

Hi during the hot weather I noticed the radiator fan was not running and issue with air con , traced to open circuit fan resistor, I have replaced and now fan work , but during diagnostic found when hot engine, the oil temperature was showing -36c where as engine and water temperature as expected around 80c , see attached with the engine cold, air temp 30c ,engine 23c and oil temperature showing -6c, I have searched but cannot find anything about a oil temperature sensor or position of it,only mention was for twin air, but I don’t have that engine, any advice would be appreciated

 

[Martynedwards]

Also on my other daughters car which is same age but it a Ford ka it shows readings for all those sensors as expected. Thanks