no running lights... need help fast..

[lrb_2000]

Alright.. i've been searching forever, and tried tons of different things, but still have this problem... this is on my '91 240sx Hatch SE 110k miles.

Whenever I go to turn my headlights on, my tail light fuse blows.. this means I have no cluster lights, climate control lights, tail lights..

Head lights do work. If I press on the brake, the brake lights come on. Blinkers work..

At the moment, I have all the tail lights, side markers, and front turn signals unplugged. Stereo is completely removed. But the fuse keeps blowing. I've checked the TCU and the board looks fine, no black burn marks anywhere. So what else is there to check... which wires? this sucks, because I can't drive at night.. and that's when I work.

Also, I don't know if this has anything to do with it, but I moved my battery to the trunk about 2 weeks ago.. I went along the passenger side down by the ecu, and under the carpet with the power wire.

Edit: Okay, I have EVERYTHING unplugged..and all the wires and connections looks good... i've unplugged cluster, climate control, glove box light, ash try light, tails, front, sides, 3rd brake light, stereo (still has original harness, so no loose wires) everything.. even the TCU. but as soon as I turn the light switch, the fuse blows.. could this be caused by a bad light switch?

[lrb_2000]

Okay, I think I ruled out the TCU and Lighting switch... I took out the TCU, and the lighting switch.. jumped the connection with a wire, and it blew the fuse out... here's a picture of the connection I used.. the red is what I jumped.

A= high beams onB= NormalC= high beam flash

Off = no lights on1st = running lights2nd = headlights + running lights

So I don't know where to look..

[97s14pwar]

have you checked all the wires before the fuse block? It sounds like you have short to ground.

[lrb_2000]

I've looked at millions of wires lol.. I don't know which specific ones to look at.. I don't have must interior anyways, so I can most all the ones that run to the rear of the car, and everything looks good.. same with the front side marker wires.. I have the whole dash torn apart and can't find anything wrong.. I suck

isn't this a beautiful mess?

[97s14pwar]

so with everthing unplugged it still blows the fuse? do u have any of the wiring diagrams for the circuits?

[97s14pwar]

once i get to school in a bit, ill get some wiring diagrams and go take a look in my s13 there. all the interior is out of mine so ill see what i can come up with for you to check