dville_gt

iTrader: (5)

Can't seem to find a definitive answer. I am using an alternator off of a '05 Cadillac Escalade (LQ9).

There is the power wire (thick gauge, goes to the battery positive).

There is a brown wire that runs to the PCM

Then there was a wire that ran to some type of box that attaches to the negative battery cable. I am not running this box so now I just have a short wire coming out of the pigtail that I have no idea where to run it to. I talked to a GM guy who said the box that this wire ran to was some type of phase controller for the alternator (I have no idea why a car would need this).

Can anyone please help, fat red to battery, brown to pcm, other wire to???

FastKat

iTrader: (10)

That is the Generator Battery Control Module. It helps the PCM control the alternator. You can read all about it here:

(It is a PDF file)

http://www.google.com/url?sa=t&sourc...0HupErMqb1OYLw

Or, if you want the HTML version, you can click on this link (which is a google search) and then click on the very first search result that comes up.

http://www.google.com/search?hl=en&c...=&oq=&gs_rfai=

Good luck with this one!

-Dave