I wasn't thinking engine cooling directly, as I'm sure the sensor is far away from that. But more like cabin temp change.
Like Angel's car, ours goes off after it has set a couple hours, or more.
If I can find the sensor, I will heat it and cool it to see if it will trigger. This is standard procedure for intermittent, electronic trouble shooting and I believe I have a can of freeze around here. A hair dryer will take it the other way,
Angle, which seat do you think the sensor might be under and if you had a chance to see it, What does it look like?
Auto shops seldom do electronic trouble shooting, They just swap out parts until they finally get lucky. Meanwhile we just have to keep coming back.
A2Jack.