I have the tool you are talking about and to me it is useless when working on a car. I have used it for home use though and that is what it was designed for.

If you can be patient and you can figure anything out, do one circuit at a time. Looking at everything can be overwhelming.

Here is a link to your wiring. Blow it up so you can see everything. When you are reading a circuit get out some color markers and trace out the wiring, makes it a lot easier to read. Also when you are ready to look at another circuit print up another one and start again.

http://www.mymopar.com/index.php?pid=24

Allen Here's a novel idea, let's not throw a bunch of parts at the car hoping it will fix the problem and instead spend a little time diagnosing it first. Life was a little easier when I was just a wrench.