Name the sensor??

[Global Jet]

Curious about what I believe is some sort of sensor... OAT??

Anyone??

[Ultraviolet]

air temp sensor.

[hafaday]

Ambient temperature sensor for the a/c

[Ultraviolet]

Originally Posted by hafaday

Ambient temperature sensor for the a/c

dem dare ist sum fancy werds howd uu no wut dat meens

[hafaday]

that be called "cut & paste".....yo

[Ultraviolet]

Originally Posted by hafaday

that be called "cut & paste".....yo

gravy

[Global Jet]

Outside air temp (OAT), that's what I thought... not sure what the ambient outside temp would have to do with the a/c system...

[Ultraviolet]

for one when you press the ext button it tells you the outside temp. for two when the ac system is on auto depending on ambiant temp the system knows when to go on economizer or run the compressor.

[hafaday]

good answer professor

[Global Jet]

OK, that's the answer I was looking for. Although not sure if the still air four inches from the radiator could be considered 'ambient'.. that would prob explain the +5/6 degrees off of true ambient when I push the 'ext temp'.

...trying not to blow a tiny subject out of proportion.. just as a pilot I stare at a panel that indicates over 5 air temps at once. I was just curious exactly what this sensor was sensing/indicating/and why. Thanks for the intel.

[hafaday]

here is a little more,,,,,,,,,,,,,,,,,cut & paste

Evaporator temperature sensor
The evaporator temperature sensor is an encapsulated thermistor that provides the ATC ECU with an input of the
evaporator air outlet temperature. The evaporator temperature sensor is installed in a clip which locates in the
evaporator matrix in the heater assembly. The ATC ECU uses the input to prevent the formation of ice on the
evaporator.

In-car temperature sensor
The in-car temperature sensor is an encapsulated thermistor that provides the ATC ECU with an input of cabin air
temperature. The sensor is integrated into the inlet of an electric fan, which is installed behind a grille in the fascia
outboard of the steering column. The fan runs continuously, while the ignition is on, to draw air through the grille and
across the sensor.

Sunlight sensor
The sunlight sensor consists of two diodes that provide the ATC ECU with inputs of light intensity, one as sensed
coming from the left of the vehicle and one as sensed coming from the right. The inputs are used as a measure of the
solar heating effect on vehicle occupants. The sensor is installed in the centre of the fascia upper surface.

Heater coolant temperature sensor
The heater coolant temperature sensor is an encapsulated thermistor that provides the ATC ECU with an input related
to heater matrix coolant temperature. The sensor is installed in the casing of the heater assembly and presses against
the end tank of the heater matrix.

Ambient temperature sensor
The ambient temperature sensor is an encapsulated thermistor that provides the ATC ECU with an input of external
air temperature. The sensor is attached to the cooling fan mounting bracket in front of the condenser.

learning something right?

[Global Jet]

Simple enough even a pilot can understand. Thanks hafaday.

[hafaday]

no problem man, i'm done on this sublect