3dr, 2WD or 4x4?
Most of the earths are secured in the passenger and drivers front foot wells if you take off the trim, there's also an earth on the top of the steering column, can't remember off the top of my head what each one does. If you can confirm the model I have most of the diagrams (somewhere) but fixing it depends on how up to speed or patient you are at reading them and tracing things. I used to be a total novice but over time and after many problems in different cossies I can get to the bottom of most things eventually, just take your time and learn as you go, shame you're not closer or i'd nip round for a look.
Some of my handy work today!