I can't remember if it was fuse 37 for me or not but I had a similar problem and I would lose temp control. I would even hear the snap of the of fuse when it blew. It took me ages to find it....but I did find it.
In my case it was definately a short...
The culprit...
In the trunk, on the hinge arm...looking in the trunk it was on the left side, you will see the wiring harness that connects to it for the rear lights etc. There was a plastic tie holding the harness to the arm. Because of the motion of opening and closing the trunk, the plastic tie wore thru the protective wire casing to show bare wire...eventually this bare wire caused a short by melting the wire casings next to it therefore coming into contact with another bare wire....causing the short.
When my fuse blew, I lost cruise, all temp control, turn indicators, reverse lights. But it was the reverse lights that caused the short. All these ran thru the same fuse.
But like I said, not sure if this is the same fuse as yours.
"Modified? this little 6 cyl? Dont be upset because I beat you!"
