I can't find this described in my shop manual.

This still seems to work, but it can't be good.

Hard to tell here, but the slot is burned out as well. All the other slots and fuses are clean and in tact.

 

That set up is only used on a 93 240 - and there's been a poor connection for a while - since only used on 1 year, might be hard to find

 

no idea why they waited to the very last year to change that... its actually an improvement over the original design, but one year only? meh. its not even all 93's, just late production, so really only half a year or less.

I believe those fuses are known as PAL fuses, and probably pretty hard to find now due to their limited applications.
https://www.littelfuse.com/~/media/a...al_293.pdf.pdf