courtesy light or dome light(small interior light located on headliner) inside of car ,will come on when door is open
I think it might be for your courtesy lights.
The ctsy fuse is for your courtesy lights. These include your dome lights, vanity mirror lights, and any other small misc. lights in your truck.
It is a circuit fuse in a vehicle. The fuse is used to protect the courtesy/clock circuit.
courtesy
Under the hood in the fuse box labeled ctsy lp. 15 amp
Try unhooking the wires to the switches on your doors that activate your [ctsy fuse] which means DOME LIGHTS !!!!! Replace the fuse if good, hook each door up one at a time. The one that blows the fuse is the bad one !!!!!!!!!
i have one myself..it does the power windows, power locks, etc
the tail lights and dash board
It's the 15 amp CTSY/CLK fuse on the fuse panel. The fuse panel is located on the right side of the instrument panel. Open the passenger door and you will see it.
my Oldsmobile has a short on fuse # 15 what does ctsy power mirror lock ltr all stand for
What dose the frt ctsy do
Found out the problem, it was the door ajar button