I decided about a week and a half ago that I was gonna retrofit stabilitrak on my 2004 Chevy Impala LS. I went to a local wrecker and they had a 2003 Oldsmobile aorura that had the JL4 option. So pulled the yaw and lateral acceleration sensor as well as the connectors. I decided that I was gonna use the control unit and about a week ago I wired in the lat & yaw plus the steering sensor. I pinned out all the wiring and got ready to wire in the system. Today I finally got to install the control unit. Witch turned out to be faulty as I knew about a week ago just data testing ect. DTC C1214 and c1248. So I found one off eBay and ordered it. I'm going to post pictures tomorrow.

Sounds very interesting
it would be nice if you could proved a wiring diagram with pin position'*
numbers in connections.
So some of us can upgrade like you did
I guess I just have a question if the ECM or body control mod has to be flashed?

Mine had the traction control. So the power reductions will be the same no need to reflash. I will post again later when I'm off work!

dis cans be dones ons they all autos de GM withs de trackions contoals??
hows is its does ones do this funtions ??

dis funtions noes compleations to dis autos? itss goesem kaput?

Dude, ENGLISH. We can't understand half the stuff you are saying.

I have to ask....why retrofit?

Was this ever done ? I would like to see how you did it