Very Odd wiring problem
 

Ok, i just relocated my battery to the hatch, when installing the battery terminals the 120amp main fuse blew because i had a wire off the fuse box hooked up wrong. but i replaced it and i checked the voltage, its fine, the battery is like new, i also checked the voltage at the fuse box and its good there too.

now the problem is the only light in the interior working is the damn A/C light...no instrument cluster lights works, no maps lights, windows, mirrors, NOTHING works except the A/C light.

I haven't tried to start it yet (just did a motor swap) and no fluids have been refilled yet...

I don't know what could be causing this..
i already searched and didn't find any similiar problems...
what could it be a bad main wiring harness?

Well it could be anything, especially considering that you just put the engine back in and haven't run it yet, but I'd start by checking other fuses. What happens when you turn the key to "ON"?

i checked every single fuse already, they're all good...when i turn the key to ON, only the A/C recirculation light will light up...

also, i just switched the ECU and no change...the only thing that works is the A/C...WTF?

nobody has any idea's what it could be?

Ok, everything is fine now...I somehow misplaced a wire during the swap...

It was the wire that attaches to the right side of the main fuse box and goes to the other fuse box...