What is it? Temp Sensor?

[B.B._07]

Originally Posted by ojeysky

Anyone with a response? @CTScot, kindly help with this question. Should I be getting ambient temperature data from my scanner when the sensor itself is not connected?

Without the ambient temp sensor connected any ambient temp reading you get on the scanner is worthless. The 81C reading you're seeing is probably a default value the car's ecu is using given that it's only seeing an open circuit on the ambient temp sensor circuit.