Outside temperature sensor

[marjam]

Does anyone know where the sensor is that tells the HVAC and the MFD what temperature it is outside? The location might explain some strange readings at times.

[mssmith95]

<div class='quotetop'>QUOTE(marjam @ Jul 5 2006, 09:27 PM) [snapback]281814[/snapback]</div>

Does anyone know where the sensor is that tells the HVAC and the MFD what temperature it is outside? The location might explain some strange readings at times.
[/b]

I think I remember others posting that it behind the front grill.

So far, I have only had issues after a car wash, when it seem slow to recover. There was a thread about this a week or so ago.

Other then that it always seems pretty close (it does take a few minutes between updates).

What is your doing?

[Frank Hudon]

the climate control temp sensor is the one on the dash.

[marjam]

<div class='quotetop'>QUOTE(mssmith95 @ Jul 6 2006, 12:42 AM) [snapback]281820[/snapback]</div>

I think I remember others posting that it behind the front grill.

So far, I have only had issues after a car wash, when it seem slow to recover. There was a thread about this a week or so ago.

Other then that it always seems pretty close (it does take a few minutes between updates).

What is your doing?
[/b]

Mine is pretty accurate when compared to the radio forecasts and bank thermometers. But on both my Prii, it always moves in increments of 2 degrees. If you start the car and the temp is an even number any changes always go to even numbers. I bet in 5 years I have only seen the temperature change by one degree 4 or five times. It also registers high when the car has been parked for a while so I figure it must also pick up heat from the engine when the car is stopped.

None of this is bad, I'm just curious. <_<

<div class='quotetop'>QUOTE(Frank Hudon @ Jul 6 2006, 01:45 AM) [snapback]281852[/snapback]</div>

the climate control temp sensor is the one on the dash.
[/b]

The one on the dash is for inside temperature, isn't it? I mean outside tepmerature.

[galaxee]

yep, just inside the front air dam.

discussed briefly here: http://priuschat.com/index.php?showtopic=21337&hl=

[etkal]

I think my temperature sensor is defective and seems to have a lower limit. This morning it was well below 0 outside, but my car said it was 7ºF. In fact, it stayed at 7 for about half an hour before rising. I've seen this before, and have never seen it read anything below 7ºF. Is this a known issue? Does it not get below 7ºF in Japan? :-P

[qbee42]

<div class='quotetop'>QUOTE(marjam @ Jul 6 2006, 01:20 AM) [snapback]281870[/snapback]</div>

Mine is pretty accurate when compared to the radio forecasts and bank thermometers. But on both my Prii, it always moves in increments of 2 degrees. If you start the car and the temp is an even number any changes always go to even numbers. I bet in 5 years I have only seen the temperature change by one degree 4 or five times. It also registers high when the car has been parked for a while so I figure it must also pick up heat from the engine when the car is stopped.
[/b]

The outside temperature sensor works in Celsius, then converts to Fahrenheit. There are 1.8 Fahrenheit degrees for every Celsius degree, so that is where you get the two degree increments.

Tom

[ken1784]

<div class='quotetop'>QUOTE(Erik Tkal @ Mar 7 2007, 04:45 AM) [snapback]401058[/snapback]</div>

Is this a known issue? Does it not get below 7ºF in Japan? :-P
[/b]

My bet is the 7ºF is a kind of limitation on the system. It is not defective but a specification.
In Japan, we saw -40ºC (-40ºF).

Ken@Japan

[eej5]

My outside temp reading always seems high compared to back clocks -- usually 4 to 6 degrees. I assume it picks up some heat from the car.

[dmckinstry]

<div class='quotetop'>QUOTE(eej5 @ Mar 7 2007, 08:30 AM) [snapback]401685[/snapback]</div>

My outside temp reading always seems high compared to back clocks -- usually 4 to 6 degrees. I assume it picks up some heat from the car.
[/b]

I guesstimate the same difference, and assume for the same reason. The faster I drive into the wind, the closer I suspect the displayed temperature is to the actual outside temperature. Someday, I'll have to actually hand a thermometer out the window.

Dave M.