Are TJ interior fuse boxes rebuildable?

wheelhorse2347

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Original poster
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Dec 12, 2020
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Detroit
Hello all,

I just bought a 2000 TJ with a 2.5L engine. Runs and drives great, but I noticed my high mount brake light wasn't operating. Upon troubleshooting, I found the PO had done his own electrical "fix" to the fuse box, jumpering the rear wiper power to fuse position 1 and 2 for dash illumination and brake lights. I see these two circuits are only putting out 10V, and so he jumpered from a good 12v, fused externally, and powered the brake lights that way.

I'm currently tracing out the issue, which I believe to be somewhere between the 1&2 fuses, and the 40A fuse in the main box, but because of the plugs he used in the fuse box, the fuse holders are blown out where they won't accept a normal sized fuse anymore.

I understand it's a PITA to swap out a fuse box in this car, but does this box come apart enough to refurbish, and bend the contacts back into shape from the back side? Worse comes to worse, I could always add in line fuse holders for these three and solder them to the OG wires, but I'd personally rather have something a bit cleaner.

Suggestions?
 
You can pull and replace the pins with the right tools, you can add to it by pilling them out from other Chrysler rigs too
 
The box snaps together right in the middle. The contacts can be pushed out with a small tool to move the tab. Its not very difficult.
 
Sounds good. I'll try the disassembly first. The contacts stay in place when the fuse box is split? Not going to fall in my lap?
 
So I disassembled the box, and was able to find the issue, but it wasnt' in the box. There was a corroded wire right next to the battery that was so bad it couldn't show a resistance with my meter, but was able to transfer 10.5 volts to the fuse box. Cut the wire and soldered in a butt connector and voila, all lights, wipers, sprayers, etc are now working!
 
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So I disassembled the box, and was able to find the issue, but it wasnt' in the box. There was a corroded wire right next to the battery that was so bad it couldn't show a resistance with my meter, but was able to transfer 10.5 volts to the fuse box. Cut the wire and soldered in a butt connector and voila, all lights, wipers, sprayers, etc are now working!
Do you have any tips about opening up the fuse box that you'd be willing to pass on? There doesn't seem to be much on this topic, but it sounds like you were able to open it up and put it back together without any trouble.