Fiat 1996 Brava Service Manual page 578

Bravo-Brava
98 range
Wiring diagram
P4A07CH03
Copyright by Fiat Auto
Auxiliary units
Climate control
50.
Outside air temperature sensor
It is on the right external rear view mirror.
It consists of an NTC sensor where the resis­
tance 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 immedi­
ately 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
OX and +80°C
Requested temperature potentiometer
This potentiometer is connected to the tem­
perature knob and detects the various angu­
lar positions, sending a signal to the electron­
ic control unit for a total of 15 different posi­
tions (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 ± 7%
7