Greetings,
I have a 2003 F250 Lariat 6.0L Crew Cab. My wipers, radio and power windows don't work. I have painstakingly checked every one of the fuses to see if there was one or more blown. All were OK.

I removed the fuse panel under the dash and have disassembled it to look for obvious clues, burnt wires/heat damage etc. but everything looks fine. Have pushed all of the fuses in to make sure they were seated properly. No joy.

I recently replaced one of the back windows in my truck and had to detach the rear dome light and I remember one of the wires sparking.

Any suggestions on where to start diagnosing this problem?

Many, many thanks in advance.

 

Does the dome light still work after the sparking?

 

Your truck's owner's manual.

Since you never mentioned the fuse box under the hood it sounds like you don't know to check there for the fuses that feed the under dash fuse box.
"Checking every fuse" is a waste of time and effort. You need to check the specific fuses, relays, wiring, and circuit breakers that pertain to the circuit(s) that you are working on.

 

The dome light has 3 bulbs in it. The center bulb, for an open door, works but the two other don't.

 

Sounds like a blown fuse.

 

Yes indeed it was a blown fuse. I was confused by the fact that the windows and wipers stopped working at the same time.

 

I had that same issue. Found the fuse by going and checking each one as the owners manual didn't really give a good idea of which one it would be. Found it, looked up it's label in the manual. "Instrument cluster". Worst. Label. Ever.

 

Dimmer switch is only 4 wires? Van someone tell me why my 2004 navi has 6. Lol

 

Welcome to FTE!

No idea. None of my Bus - iness.