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  #21  
Old 10-16-2012, 09:02 AM
xsdbs xsdbs is offline
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How were you reading the thread and driving across the desert? Did you keep looking up to see if they were watching you? You do know that the interior camera notified the CIA and that wasn't just a comercial airliner that was above you and flying low. Don't you?



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Originally Posted by MissouriNomad View Post
The conspiracy theory aspect of this thread is even spookier if reading while rolling across the Arizona dessert at 0430.
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  #22  
Old 10-16-2012, 03:46 PM
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The sensor you're questioning is an infrared sensor used to do the climate control..

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  #23  
Old 10-16-2012, 03:53 PM
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infrared? Hmm. I don't think they'd use a light sensor for temp control.

*****Most temperature sensors used in climate control systems are thermistors which are solid state electronic devices that change their electrical resistance in response to temperature changes.******
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  #24  
Old 10-16-2012, 04:10 PM
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funny that you mentioned the Arizona desert
The first time that i saw the reflection from the green Ash Tray Light, i was driving on Interstate 8 or 10, in the wee hours of the morning.
In the desert at night, you are not really watching the road, you are looking for anything that may impede your driving, rubber from tires, furniture, coyotes of both kinds, the animal & the human kind
Just seeing another vehicle out there at that time is a event in itself. Buildings or towns with lights on, is something to slow down for, mostly looking for a coffee shop.
Then i noticed this eerie green light just outside my passenger side window, at first i thought it was some kind of settlement way out in the distance, but it kept right up with me.
Many thoughts were going through my sleep deprived mind ..................
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Last edited by GTyankee; 10-16-2012 at 04:18 PM.
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  #25  
Old 10-16-2012, 04:50 PM
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Quote:
Originally Posted by emjohn4 View Post
Correct - if he has the auto climate control (or even potentially remote start), it is an infrared thermometer.
Quote:
Originally Posted by astroman54 View Post
The sensor you're questioning is an infrared sensor used to do the climate control..

Andy
Quote:
Originally Posted by xsdbs View Post
infrared? Hmm. I don't think they'd use a light sensor for temp control.

*****Most temperature sensors used in climate control systems are thermistors which are solid state electronic devices that change their electrical resistance in response to temperature changes.******
xsdbs, you may wish to reconsider the meaning of "infrared."

I would suggest you consider that an infrared thermometer records thermal radiation emissions, and determines a temperature from its readings.

An infrared thermometer does not rely on conduction to determine a temperature, as a thermistor does. The ambient air temperature sensor, located by the drivers side headlight, is an example of a thermistor, which is in direct contact (conduction) with the ambient air.

Some light reading on:

Infrared Thermometers: http://en.wikipedia.org/wiki/Infrared_thermometer

Heat Transfer (specifically conduction): http://en.wikipedia.org/wiki/Conductive_heat_transfer

Last edited by emjohn4; 10-16-2012 at 04:51 PM. Reason: clairfy quotes
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  #26  
Old 10-16-2012, 08:28 PM
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Quote:
Originally Posted by redward View Post
The manual said to look there for a flashing red light when I was programming my garage door opener with the homelink. After a few tries and obviously no red light, I noticed that the EVIC was doing the programming. So conspirasy theories aside I believe that it is a vestigial remain of homelink evolution.
The flashing red light refers to non-EVIC equipped models. You'd think Chrysler would have noted that somewhere in the manual.
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  #27  
Old 10-17-2012, 11:31 AM
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Well, you are somewhat correct. The thought that I had was that the infrared is generally used in dual zone climate controls and in the vehicles that I have worked on, there were generally (2) sensors not just (1). The was a sensor facing toward the driver and (1) toward the the passenger. In a single zone HVAC system, I have always seen a thermistor behind a grill on the dash. So because there is a single item that is being discussed here and it faces downward, I had my doubts about it being "infrared".
However, I am willing to be wrong, if someone says that "yes, it is an infrared temp sensor, here's the schematics. Then I would be learning something, of which I have no problem doing.
Thanks for the links. Good reading.

Quote:
Originally Posted by emjohn4 View Post
xsdbs, you may wish to reconsider the meaning of "infrared."

I would suggest you consider that an infrared thermometer records thermal radiation emissions, and determines a temperature from its readings.

An infrared thermometer does not rely on conduction to determine a temperature, as a thermistor does. The ambient air temperature sensor, located by the drivers side headlight, is an example of a thermistor, which is in direct contact (conduction) with the ambient air.

Some light reading on:

Infrared Thermometers: http://en.wikipedia.org/wiki/Infrared_thermometer

Heat Transfer (specifically conduction): http://en.wikipedia.org/wiki/Conductive_heat_transfer
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  #28  
Old 10-17-2012, 02:03 PM
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Quote:
Originally Posted by xsdbs View Post
Well, you are somewhat correct. The thought that I had was that the infrared is generally used in dual zone climate controls and in the vehicles that I have worked on, there were generally (2) sensors not just (1). The was a sensor facing toward the driver and (1) toward the the passenger. In a single zone HVAC system, I have always seen a thermistor behind a grill on the dash. So because there is a single item that is being discussed here and it faces downward, I had my doubts about it being "infrared".
However, I am willing to be wrong, if someone says that "yes, it is an infrared temp sensor, here's the schematics. Then I would be learning something, of which I have no problem doing.
Thanks for the links. Good reading.
Here's the p/n - google at your own peril. It's pretty hard to argue with Mopar.

55056301AC (SENSOR. Infrared. Trim: *O0, . "Air Conditioning"+"O/Head Console w/Trip Computer/UGDO"+"9 Amplified Speakers w/Subwoofer"+"ParkSense Rear Park Assist System"+"Rear Power Sliding Window"-"Power Sunroof"%"Rear Seat Video System". Required: 001)

About $33, should you want to buy one.

http://www.factorychryslerparts.com/...5056301AC.html
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  #29  
Old 10-17-2012, 03:56 PM
xsdbs xsdbs is offline
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I don't now why I get the feeling that you are giving me the "I told you so". I mentioned that I was only going by th pst when I woked on vehicles. Things do change. Oh well, Ilike I said "I don't mind learning something.










Quote:
Originally Posted by emjohn4 View Post
Here's the p/n - google at your own peril. It's pretty hard to argue with Mopar.

55056301AC (SENSOR. Infrared. Trim: *O0, . "Air Conditioning"+"O/Head Console w/Trip Computer/UGDO"+"9 Amplified Speakers w/Subwoofer"+"ParkSense Rear Park Assist System"+"Rear Power Sliding Window"-"Power Sunroof"%"Rear Seat Video System". Required: 001)

About $33, should you want to buy one.

http://www.factorychryslerparts.com/...5056301AC.html
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  #30  
Old 10-17-2012, 04:34 PM
emjohn4 emjohn4 is offline
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Quote:
Originally Posted by xsdbs View Post
I don't now why I get the feeling that you are giving me the "I told you so". I mentioned that I was only going by th pst when I woked on vehicles. Things do change. Oh well, Ilike I said "I don't mind learning something.
Learning is good.

The answer was provided earlier (three times, IIRC). You can doubt those who provide the answer, but don't get butt hurt when you do doubt them, and they post their references.
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