Outside air temperature sensor

Outside air temperature sensor

It is on the right external rear view mirror.

It consists of an NTC sensor where the resistance decreases with the temperature - (R at 25°C = 10 kOhm), with an operating range of between -30°C and +50°C

Treated air temperature sensor

It is inside the distributor assembly immediately upstream of the distribution flaps for the air flows to the various vents.

It consists of an NTC sensor (R at 25°C = 10 kOhm), with an operating range of between 0°C and +80°C

Requested temperature potentiometer

This potentiometer is connected to the temperature knob and detects the various angular positions, sending a signal to the electronic control unit for a total of 15 different positions (one for each degree centigrade) with two extreme positions "LO" and "HI".

It receives a 5V supply from the control unit and has a controlled earth and gives a signal which corresponds to the position of the knob:

R1 - R16= 681 Ohm ± 1%