Blown fuse (I think)?

[DoctorJest]

Hey, guys --

I think I've blown a fuse in my '95 4Runner, and I'm hoping someone can confirm this for me. Firstly, I think it happened when we tried to jump it about half a year ago, with the power wires backwards at first -- immediately after that, the internal lights wouldn't turn on anymore, and the headlights will only turn on when the key is turned (at the time, the rear internal light was still switched on, which was how I'd run the battery flat in the first place).

Also, as I found out a couple of weeks ago, it's now entirely possible for me to lock the door and leave the key in the ignition, provided that you're a scatterbrained idiot (which I am). It no longer does that neat "whoops, let me unlock the door for you, stupid" thing, which I liked a whole lot better than waiting two hours for AAA.

So--is this likely or possible to have been caused by something as simple as one blown fuse? I tried to read the circuit diagrams from my manual, and discovered that I'm really bad at reading circuit diagrams.

Anyway--that's the first bit. The second bit is that I don't know if I'm doing something wrong with the fuse box, but when I tried to pull the fuses out of it to reset the computer a while ago, I couldn't get a single one of the bloody things to actually budge. Is there a trick to this I don't know, or is it possible that the fuses are--well--fused?

All help is extremely welcome and appreciated. I'd really rather not run the risk of locking myself out of the car again, if I can avoid it...

 

[KidVermicious]

That doesn't sound like a blown fuse. A fuse provides continuity or not, it normally doesn't make weird things happen. I'm no expert, but it sounds to me like you fried a couple circuits in your ECU or maybe elsewhere. Get a $5 Harbor Freight multimeter and start chasing voltage.

Are you using a fuse puller or set of pliers to get the fuses out? I'd call it highly unlikely to the point of impossible that you shot enough current through the fuse box to melt the contacts and weld them in place, and NONE of the fuses popped first.

 

[fourwd1]

Depends on which fuse your talking about. Most just pull out, but the large ones in the engine bay fuse box are screwed in from underneath.

 

[91'4bee]

Something tells me you shorted something out and it is having the car go haywire when electricity is applied. Because the battery was jumped with the cables on the wrong posts i think that something melted in your grounding side and part if not the whole electrical system is not grounding out.

Hope that points you in a good direction and good luck