This E.C.M. fits the following: 2003 4.8/5.3L Chevrolet Tahoe. You will need access to a scan tool capable of doing this procedure to do this and clear any related trouble codes (Code P0315). This computer is refurbished and tested for functionality.
Worked great put it in did the security to program it. 30 minutes and it worked perfectly. No codes and my H2 Hummer runs great. I would recommend this company to everyone.
I got this back from you guys and it is not programmed will not work in my truck like it was supposed to so now I have to go spend additional $250 on 1 February to get it program so it will work my truck