If I get an ECM the same year and transmission as my truck do I still need to have it flashed to my VIN? If so do they need the truck or can I just take the ECM? And what do I ask them for? Just a reflash for my VIN with updates? I just want to know what I'm doing before I go to a dealer for this.
If I get an ECM the same year and transmission as my truck do I still need to have it flashed to my VIN? If so do they need the truck or can I just take the ECM? And what do I ask them for? Just a reflash for my VIN with updates? I just want to know what I'm doing before I go to a dealer for this.
Thanks