I noticed one headlight is really dim, but it still works.
Im thinking it could be just a bad ground, and if it is then i'll prolly have a weird electrical problem solved! this is another thread i have posted somewhere, about using the turn signal or brake and things flash inside the truck... but any way I am asking for anyone to link me to a wiring diagram that shows grounds for headlights.

 

Well I dont know where the DII grounds are but I had a similar problem with my 2001 Montero, I switched to the Sylvania Silverstar light bulbs and they melted the wiring harness at the bulb, had to remove and replace the harness' and switch back to regular bulbs and all was good.
So...check your connections first, then follow the wire harness back as far as you can.

 

okay, goin to check connections first then do some wire chasing, see what i can find out. from my understanding, a ground on a land rover can be for a number of things, therefor i was wondering if a ground diagram exists.

 

Here ya go

 

i see wires under the hood that are pretty ratty.... one red wire to the alternator is barely hanging on there! and plastic wrap around a positive wire just crumbled in my hand when i moved it, so its no wonder that ive got somethin goin on, havent found it yet

 

Before you get too involved in tracking down a ground issue, switch light buls from the other side, could be a failing bulb.

 

Did the switch, they look to be the same brightness now! although I wll know in a couple hours when its dark if they are truly the same. Both bulbs were in good shape.

 

So either it is the bulb or a little corrison on the connection, if you are lucky.

 

contact cleaner on the connectors?
no luck with the turn signal issue, it still does it after putting a good bulb where the dim one was, which is the side that makes blinky lights everywhere... disco mike wtf is goin on with it?

 

Okay, there is an aftermarket trailer wiring harness... im going to start there and get rid of it. maybe thats my problem but i really dont know... still dont know what ground i should check, or even where they are located... weird electrical problem, help