Number 15 fuse keeps blowing on my 2001 ford expedition

Look at a wiring diagram of fuse #15 circuit & pick the
most likely item to blow the fuse & start your testing
at that point

You'll have to start at the relay and check the circuits for a short to ground. Could be a faulty relay too.

Remove the cigaret lighter or any accessory plugged into it. Try that and let me know how it works for you.

could be many things. could be a short to ground. find out what wires work on this circuit. and check all the connections and insulation of the wires. if there was any sound system put in or recent electrical work i would double check the quality of that.

make sure to use a 15 amp fuse if it keeps blowing you have a short in a wire in your radio please rate me

maybe a shorting wire to the running boards since it is most open to the weather

Check the #15 fuse in fusebox behind marked panel on left lower dash just below and left of steering column. This is only a 5 amp fuse but it controls a lot. This fixed our 2001 Expedition. 25 cents.

One of your power wires is grounding to something, whether through a switch or relay.

I had wires fuse together that had the same effect in a vehicle years ago. Constantly blew fuses and happened to find the 2 wires fused under the dash in the steering console.

This is probably not your problem but there are very few things that cause those fuses to blow that rapidly.

Electrical is difficult to troubleshoot over the net though. Find out what the fuse goes to and try to follow the wires from point A to B as much as you can. May be as simple as a wire that the insulation is rubbed off or cut at a point and touching the body.

We had the same problem but when we put in a new fuse it smoked. It turned out to be something with the master cylinder and required the changing of a 20 dollar part by the mechanic and problem solved