Need to replace passenger side headlight on a 2002 Honda civic lx

sounds like a bad earth/ground to me, common fault with brake lights

this is covered in the FSM, buyone
or look at alldata.com under windows.
that's funny you need windows to see and fix windows in car, LOL

2002 Honda Civic LX 1.7 liter SOHC L4

either the housing is cracked or there is a seal leak, pull the light socket out and inspect the seal,

I believe it is the anti-theft devise in the radio. You need to go online and look for the code or call honda and talk with them so they can help you with that. Hope this helps

check the remote and repair .

I had a question i bought a used control arm for a 2001 honda civic compared it to the original and everything was the same except the part where the ball joint goes into is a few mm thicker on the control arm. Beedless to say i got it in but i had to over tighten to get the nut in all the way. I thought this would stop the rattling sound when i hit a pothole bit its still doing it and i fear the control arm is the incorrect one what other honda has the same control arm as the civic?

I don't believe you do. You may have to take several of the clips or screws out, that also help to hold the bumper cover on , but that should be it

inspect and or replace the drivers door lock actuator...

You won't need a diagram as the damage was done where you tried patching in to the headlight circuit.   You already know wher that was,  just figure out where you shorted 2 of the wires with the wire clamp on device that wasn't lined up right.  the insulation between two of the wires has been cut and you have a partial short.  Once you identify and repair the insulation NEATLY with electrical tape, you'll be fine.
If you really think you need diagram, buy a haynes manual for about $20 at your local parts store or haynes.com.