Try this and d/l the owners manual. I believe section 3-8 will help you out.

http://www.cadillac.com/site-search.html?filter=0&q=2007 Escalade Manual&spell=1

Lisa

 

So it's possible to do more than 3 times, since tow does 6 times. I guess it's possible modify BCM to 5 all time or 6 all time. Just need a software to access BCM

 

You need the software. Sorry.

Lisa

 

Sorry for the late bump, but do you know what software is needed to access BCM?

 

Still looking. Nothing found it

 

The GM 29 bit LAN has not been fully mapped out yet. Furthermore you would need to figure out the seed/key for our particular BCM. You are talking uncharted territory here as most folks don't modify their Escalades. You will want to pick up an OBDLink MX to start with as I believe it is the only one capable (and affordable) of sniffing the GM single wire LAN.

If you want to learn more about how GM stuff works, read this http://www.ls1gto.com/forums/showthread.php?t=493177
I hacked the GTO cluster and documented it. Similar tactics will apply, it's just a matter of figuring it all out.