355 Climate control dead

The climate control in my 1995 F355 stopped working. Regardless of setting, there is no fan, no airflow, nothing. Some facts that may help with diagnosing the issue:
- The panel seems to be getting power as the "STOP" and recirc buttons illuminate when pressed
- I checked fuse 25 in the pax footwell for "AC System" according to the manual and it is perfectly fine
- I suspect this may be related to the fact that I recently had to remove this bracket with a relay/control module on it (see pic) due to a broken stud when replacing the shock actuators. I am 99% certain it is all back exactly as I found it, correctly reconnected but Google suggests the Bosch module is a blower control unit for a Fiat and that seems suspiciously like the issue at hand...

I'm wondering if I pulled a wire out of one of the connectors by accident... Any thoughts or advice?

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Edit to add: I ordered a NOS Bosch module because they are pretty cheap but it won't be here until early/mid March and I worry that the issue could be in the wiring/connectors or somewhere else altogether.

 

Thanks Qavion!

Is there another fuse I need to look for? Fuse 25 looks 100% fine. Is there another diagnostic step I can take?

On the Bosch module - Are you certain? I saw that on one parts diagram but searching for the Bosch part number shows repeated, multiple site references to “blower control unit”. How could it be a blower control unit for some cars and wiper control module on an F355?

 

Never mind my questions about the fuse. I see your updated response. Going to check and I’ll be right back

 

Thanks Ian - I'll take a look at that next.

I just confirmed fuse 25 is indeed working and also seems to be powering my radio (there is a lot of aftermarket radio work that has been done to my car over the years - I've tried to have it mostly undone but clearly it is not quite stock).

So my radio seems to need both fuse 4 (correct fuse according to manual) and fuse 25 to operate.

 

OK that hidden fuse looked pretty cruddy so I replaced it with a new 30 amp fuse and still no go...

Also, there seems to be a fuse missing in the row of 4 here (purple star shows missing fuse, green oval shows the 30 amp fuse I just replaced)
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Slightly better view... showing the old fuse in place.
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OK thanks - there isn't a fuse there and I did not put one in. Just wanted to make sure that it wasn't missing!

 

OK - going to check that now - stay tuned!

I am determining no go by starting the car, fiddling with all the HVAC knobs and getting no fan action - anything else I should do?

Also - thanks so much for all the help holding my hand!

 

OK go easy on me because I'm an Aerospace engineer and I got a C on my only electrical engineering class... but I measured voltage at both sides of the fuse with the key turned to accessory position and got 12.3V at the outer terminal (passenger side) and 0.3V on the inner terminal (drivers side). Oh wait, US driver and passenger side so reversed for you...

 

I did not hear any whirring or any noises while changing air direction.

Ambient temp is a comfortable 15 degC at the moment in the garage.

 

Thanks for sending that but it is a bit scary looking!

I did not measure across the fuse - red probe on fuse terminal and black probe on an exposed suspension bolt that seems like a decent ground/earth (but maybe isn't? Like I said, I barely passed EE)

 

Ah OK - doing it this way with a fuse with cutouts, I get 12.78V on both cutouts with black probe at ground. This is with the key out, car fully turned off since I see from the wiring diagram now that this is a hot battery power connection.