I didn't check that. In fact, I dont even know where it is . What is the fonction of that solenoid? I will do some search on my side.

I will remove the glove box liner today and take a look at the tube and the sensor. I'll keep you informed if I found something.

Also, can I remove and check the diaphram of the switchover valve without removing the entire dash? I think I can only remove the climate control unit and they will be behind right?

Thanks again everybody for the help!