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Faulty temperature readings

Joined
May 22, 2012
Messages
114
Location
Prescott, Arizona
My XLR/V(s)
2009 XLR Platinum, Crystal Red Metalic
My "Driver Information Center" is showing what think is an erroneous temperature reading, I believe it is indicating readings lower than they should be.
Is this due to a faulty ambient air sensor or, some other sensor?
 
Any error message or codes set?
Assuming your temp gauge is reading low, it’s probably a thermostat stuck open. You will usually get a message “engine hot AC turned off” and temp gauge will drop to zero (or actually 100 as that’s the lowest reading).
 
I just had the same thing happen to my car last week, code P0128, (temperature to low). I changed the thermostat and so far no more problems. I have only driven it a few times since but I think the thermostat being stuck open was the cause.
 
There are no error codes displayed because, this is not the engine temperature but the ambient air temperature as displaye on the Driver Information Center not the instrument panel.
 
I didn't know ambient air temperature was on the DIC, on my car it is on the radio display next to the time.
 
My "Driver Information Center" is showing what think is an erroneous temperature reading, I believe it is indicating readings lower than they should be.
Is this due to a faulty ambient air sensor or, some other sensor?
I am having the same issue. My info center tells me it's minus 40 degrees this causes the AC not to work. I have replaced the ambient temperature sensor but it did not fix the problem. I also might add this is intermittent it last about 15-20 minutes then it will start climbing back up. Most of the time it reads 75 degrees.
This seems to be a fairly common occurrence someone out there must know the Fix .
 
Last edited:
I know mine read 75 constantly when the sensor was disconnected.

So bad sensor or maybe wiring open/short?
 

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