Driver's side.

you have to pull off the wall panel just to the left of the rear seat that runs from the back of the seat to the B-pillar.

It's a little gray box about 3inch x 4 inch.....I've seen write-ups on here regarding how to trouble-shoot it and also "4Crawler" has a write-up on his site on "tips and tricks" or "cheap tricks". If you have never been on his site I will give you a link. Hope this helps.

http://www.4crawler.com/4x4/CheapTricks/index.shtml