Cadillac Escalade, EXT and ESV Forum - 1999 - 2006 Discussion, 2002 EXT Immobilizer Problems in Cadillac Escalade Forums; OK so who does the programming? Can it just be done based of my VIN atthe time of purchase or ...
OK so who does the programming? Can it just be done based of my VIN atthe time of purchase or must it be done with the new pcm on the truck?
whenever a new module such as a pcm or tbc has to be programmed it is when it's in the truck and the gm dealer can do this after installing the module you need.
the vin can be used to buy a aftermarket pcm but you have to have exact mileage and there is still no assurance that it would work after you install it trust me on this leave this to the dealer you will thank me in the long run as it will be problematic for you.