Ambient Temperature Sensor

[Thepominlaw]

New T6.1 owner, ambient temperature sensor shows 40-48 degrees centigrade. Going into the garage for replacement in 2 days.

I was wondering what impact on the vehicle this sensor has, is it just to tell the driver how hot / cold it is or does it do more?

Only reason I ask is I have noticed the radiator fan is on every day when I drive home (it turns off immediately when I turn off the van). Same with the heated windscreen I turn it on in the morning and it immediately turns off. Is this because the vehicle thinks it’s 48 degrees outside?

I have a Carista reader and no faults are reported

 

[Dundee_Kev]

Yeah, the sensor will confuse the engine management and climate systems. The fan will be running to prevent what the van thinks is potential for an over heating situation.