Hi guys,
Just recently got a 1992 LS400. Everything works mechanically, but I've been having some electrical gremlins.
This is a list of things that don't work:
All interior lights
Trunk release
Speedometer
Radio
Power door locks (key and door panel button)
The ONLY fuse (both in the engine bay and driver footwell) that's blown/bad is the DOME fuse, everything else is intact. The only issue I was trying to fix when I started this was the interior lighting so I could get in at night and be able to see. I checked every interior bulb I could find, and there was not a single blown bulb. I tried disconnecting everything the factory manual said was linked to the DOME fuse (anti-theft ECU, door locks, radio antenna, wireless door lock ECU, etc.) but nothing works. I even switched out the fuse box with another I had from a parts car I took the engine out of, and it does the same thing there. The annoying part is that with the car off, key out, and doors closed, the instant the fuse touches the terminals there are visible sparks and the fuse blows. Even did it with a 15amp that I tried. The only thing I can think of is somewhere in the harness it's touching another wire with a massive amount of constant current, but I wouldn't even know where to begin to look for broken wire. Nowhere in any of the areas I disconnected or at the fuse box did I see any signs of worn, frayed, or brittle wire insulation. Anyone have any suggestions where I should look next or what all the non-functioning items have in common?
Thanks in advance,
- Frederick
