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.