by blinker I assume you mean turning signal. The fuse is located under the dash board, driver side. It's a little black fuse box, the cover of the box should tell you what fuse is for what.
in the fuse block. it should tell you on the fuse block which is which blinker fuses are usually big and have a metal covering.
From 95 to 99 with a few sensors changes
A simple first step would be to check the fuses to these lights, then go from there.
check your relay to the blinker. its wat makes it go on and off
That means that the bulb in the blinker needs to be replaced.
go to www.autozone.com http://www.autozone.com/shopping/repairGuide.htm?pageId=0900c152800ad69e
If the 1998 Corvette headlights will not go on, you might have bad bulbs or a bad headlight fuse. You can check the fuses by removing the fuse box cover below the dashboard.
The horn fuse is in the fuse box under the hood, not inside the cab. It is a large square fuse. Go to this link, http://www.club3g.com/forum/electronics/24422-how-fog-lights-turn-parking-lights-bosch-relay.html the horn fuse is to the direct right to the fog light relay fuse.
Broken switcher.
go to autozone.com http://www.autozone.com/shopping/repairGuide.htm?pageId=0900c152800ad658
It should be in the fuse panel and the flasher fuse is the round one inside. REplace it and you should be good to go.
fuse 75 should go to electric fan, and fuse 76 should go to ac blower final stage blower resistor