Weird problem - no start, showing -40*F

[Qsilver7]

Originally Posted by oldskewel

I am pretty certain the -40*F is related to the failed start.

BTW, it was probably about +60*F at the time.

Thanks!

Ditto the replies above in regards to the ambient air temp sensor. I highly doubt it is the culprit of a "no start" situation. Seeing -40°F in the display is only a symptom that the ambient temp sensor has failed in some way...aka the wiring has been damaged or the temp sensor has failed in some way.

I believe it sends data to the DME...which is then shared with other modules like the IHKA & IKE & GM to regulate some of the IHKA's programs, display the temp in the cluster, and to actuate the heated mirrors & washer jets. But there's nothing about the ambient temp sensor that would stop the vehicle from starting.