Need some help here...Just removed/reinstalled the dash in my 99 F150 (had to replace the heater core). What a job! Well the heater core is fixed, but now my power windows and dome light are inop. I checked/rechecked all the connectors and all seem to be connected. Any ideas?

 

Is there anything common between these two systems (harness, junction box, etc.)?

 

I'm having a similar problem, except it seems mine is more involved. I have no interior lights (doors, dome, reading lamps), no turn signals, no power windows, and my keyless entry will not work. I was playing with some fuses yesterday trying to hook up a trailer and now I lost all that stuff. Anyone had this specific fuse / relay go before and which is it? I'm on my way to go to Autozone for a fuse kit with tester. Vehicle is a 99 F150 5.4L. Thanks!

 

I figured out my problem...As it turns out it was very similar to yours. That is, no dome light, glove compartment light, under hood light, power windows or door locks. As I stated in my original post, my problem started after I removed and reinstalled the dash. Part of my problem was the keyless entry. It was an after market install right after I bought the truck in 1999. To aid in my troubleshooting of the problem, I ended up removing it. As it turns out, there were only two wires that were cut and routed through the keyless box and two or three that were tapped into. I disconnected the keyless wires and reconnected the stock wires. Once I did that, the door locks were operational again.

The final fix for my problem was fuse #14 (15 amp) in the truck cab was blown. This fuse was the third one down in the middle row of fuses. I'm not sure how it blew. I did accidently connect one connector during my dash installation and didn't notice until after I applied electrical power (probably blew then).

Now everything works fine. Next step is to get another aftermarket keyless entry installed. Maybe your problem is as simple as mine (blown fuse).

 

Yeah I was checking fuses when it happened. I went and bought a tester and sure enough it had blown after I put it back in. Thanks for your help