Originally Posted by SouthArk370Z

The lic plate fuse supplies:
- Daytime running light relay
- Parking lamp
- Front side marker lamp
- Tail lamp
- Rear side marker lamp
- License plate lamp



Two fuses for the horn (FSM HRN-2):
#31 (15A)
#38 (10A)

Both are located in the Fuse, Fusible Link And Relay Box (AKA Battery Terminal with Fusible Link). See PG-85 for fuse locations in box.

Edit: Fuses 50 and 51 (15A) may be involved with the horn. Both are in IPDM. I think they are power for the IPDM, but, since you will already be in the IPDM, you might as well check.