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DIY: Ambient Air Temperature Sensor Replacement

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Old Aug 15, 2010 | 06:45 PM
  #1  
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Default DIY: Ambient Air Temperature Sensor Replacement

If your air conditioning is erratic.

EXAMPLE: Actual outside temp is 98*F. While AC is ON, my outside temperature reading drops to 38*F and my set temp is 72*F. The blower then propels hot air trying to warm up to set temp.

It is located under the RH Driver Headlamp

I had a difficult time finding any photos of the actual location, so I opted to produce a few of my own.

The harness that the sensor connects to



Comparison 1



Comparison 2



Sensor Installed

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Old Aug 15, 2010 | 06:55 PM
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nice work. what year is your GS?
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Old Aug 15, 2010 | 08:48 PM
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Nice write up. Did your car have NAV? What model and year is your car?
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Old Aug 16, 2010 | 08:05 AM
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nice funny I was asking about this last week...
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Old Aug 23, 2010 | 10:21 AM
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I have a '99, and it doesn't have Nav. I appreciate your comments.
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Old Jun 27, 2012 | 10:10 PM
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Default Outside Temperature Reading

I have a 1998 GS 300. The temperature reading that registers on my climate control for outside temperature fluctuates alot. It will give me readings starting at -22F (when it's around 70 outside) then start increasing, then starts fluctuating. Any suggestions for a fix?
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Old Jun 28, 2012 | 09:14 AM
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Why are you asking this question when the answer is above you....


Originally Posted by noscal0829
I have a 1998 GS 300. The temperature reading that registers on my climate control for outside temperature fluctuates alot. It will give me readings starting at -22F (when it's around 70 outside) then start increasing, then starts fluctuating. Any suggestions for a fix?
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Old Jan 7, 2013 | 04:50 PM
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I believe this is whats wrong with my car, my outside temperature says 78* when I know its 35* outside. Where can I purchase this?
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Old Jul 28, 2015 | 02:33 PM
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I know this thread is just a little old. LOL But help me to found out what is the problem with my car. Thanks guys

Last edited by Mcon; Jul 28, 2015 at 02:41 PM.
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