Sensor location for Auto heat controller
 

Anyone know were the internal temp sensor would be for a 1979 911 SC Targa , I have checked behind internal mirror
Thanks

That’s where it goes on the 0-10 controller.
Bruce

Sensor.
 

For our M/Y 86, it is located to the right of the steering column.

Gerry

Sensor.
 

http://forums.pelicanparts.com/uploa...1533570602.jpg
^^^^^
Here

Gerry

Thanks Gerry mine has a different arrangement
The vents are rectangular I will try and get the fronts off and see of anything in there
Jeff

I mentioned it is in the dash In one of your other posts

Maybe the 79 is different(?)
Could it be tucked up under the dash and not have it's own 'vent' ? (it's really not a 'vent' but an aperture sort of).

aha

Jeff, when you get the front off would you post a pic of the sensor? Thanks

I have been all over the under dash board and bought a cheap enderscope to look down the vents but still no look
The wire does head that way somewhere behind the dash I will keep looking perhaps it's been removed in the past!

Up until MY '85 the cabin auto-heat sensor was located on the roof in between the sun visors...

http://forums.pelicanparts.com/uploa...1533591841.jpg


After this is was in the dash.


Mark

Mark.

Was so for the Targa
Jeff

If you had auto-heat (i.e. the original control box between the seats could be adjusted from 0 through 1-9 to DEF), that is the only location for the cabin temp sensor prior to '86.


Mark

Mark,

The interior light is in this location

Only one sensor, mounting and wire is listed.

http://forums.pelicanparts.com/uploa...1533682061.jpg

To make sure I'm not going senile, I just checked with a couple of Targa owning Buddies.

They both confirm they have the cabin temp sensor between the sun visors the same as the Coupe. They also confirm that their interior lights are in the Targa hoop.

So it would seem if a Targa came with the auto-heat option the interior light was relocated. If so, maybe your car never originally came with auto-heat, just the manual version.


Is your car an original RHD UK spec car, or an import?


Mark

Hi Mark it's a right hand drive registered in England
It definitely did have the controller as all the wiring is visible under the unit , perhaps the sensor was relocated sometime in the past
Jeff

It's a real mystery I need to try and trace the wire I think the sensor has been cut as there is open circuit

Jeff

Jeff is your auto heat working....?
Ivan

From new, a C16 car?


The manual heater unit would have had a controller that looks the same, except for the dial only being 0-3 and it some had wiring underneath.

Not just relocating the sensor, but the interior light as well?


Does the car have the temperature sensor in the nearside air duct just ahead of the flapper boxes (under the car next to the gbox)?

Mark

Jeff, I hope I didn't send you on a wild goose chase.
Mark's input is good and I know Ivan to be very knowledgeable. Good luck.

Jeff to find out if your sensor has been cut out is like this.If your control box goes all the way up to max heat in any speed(number) the connection to the sensor connection has been corrupted.

thanx Dan.....

Ivan

Mark I havnt looked for the exhaust one as yet I am unable to jack her up as I am looking for a replacement jack, but the wiring is there on the control unit do you know what the two brown wires are for that come from the back there are 2 yellow ones also that come from under the carpet should these red ones be connected to the yellow ? They have suitable spade end connector
Jeff

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Mark I havnt looked for the exhaust one as yet I am unable to jack her up as I am looking for a replacement jack, but the wiring is there on the control unit do you know what the two brown wires are for that come from the back there are 2 yellow ones also that come from under the carpet should these red ones be connected to the yellow ? They have suitable spade end connector
Jeff

Everyone I have ever seen up to '86 is in between the visors as stated earlier..

Sorry, don't recall the wiring colours (colors). I do recall that both sensor wires are not regular auto wires, more like a thin coaxial cable in white, or light gray.

Mark