Cadillac Repair Questions? Ask a Mechanic for Answers ASAP
There should be no problem reprogramming the ecm and the bcm. When the programming is done need to make sure that the vehicles VIN is correct before programming. Sometimes it will pull the last VIN that the module remembers. I had a problem with that when I programmed an ECM. It thought it was a different vehicle. Once I got the correct VIN in it programmed good.