You can find the fuse chart in the operation manual, there should be a pouch on the back of the seat where this manual is normally found. Long as someone hasn't cut the cord and taken it out. If you don't have the manual you could try going to your Local Cat dealer and see if they can look it up for you with the online tools that they have.
Best of luck with your hunt.
HEF(Heavy Equipment Forum) is a good forum for newer and old stuff of every make. Lots of experts their also. There are a few that just flat amaze me every day on the new and newer stuff. See ya there.