Seems we got there eventually… taking the long way around. Always good to add knowledge to the database though Thanks for the pics.
I see you have a Captain Z CNC-modified suspension actuator Image Unavailable, Please Login Did you fit that or a previous owner?
I installed them last week. 3 out of the 4 had broken gears although only one bad enough to trigger the suspension fault light. I figured I might as well get them all overhauled.
In the event you find that the Climate ECU has failed, Specialized ECU Repair in Florida repairs the units. They rebuilt my climate timing actuator and I was pleased with the work and turnaround. Here's a link to their page for all F355, 355F1 items. https://www.ecudoctors.com/collections/ferrari-355-1996-1999
Here is better solution Image Unavailable, Please Login Image Unavailable, Please Login Image Unavailable, Please Login