no park lights or tail lights, keeps blowing fuse

ok guys need you help, I have a 1994 xj se, and my tail and park light fuse keeps blowing, I have disconnected the front light harness under the pcm and the rear connector to the rear lights and still blows, I need a wiring diagram for the lights, I have spent a few hours looking for it and cant find it, I have already replaced my headlight switch to no prevail!!!!

any help would be greatly appreciated!!

If just the park light fuse and not the instrument fuse (or both) keeps blowing I don't know where to steer you.

I had something similar, the harness going down the drivers side of the firewall to the fuse box was rubbed through. Though my short was in the instrument light circuit.

You may find the wiring diagram here. http://www.bbbind.com/free_tsb.html

You could have a shorted bulb. Pull all the bulbs before starting to troubleshoot.