2007 Silverado Engine computer 12597121 "Programmed to your VIN" ECM PCM ECU
This E.C.M. fits the following: 2007 4.8/5.3/6.0/6.2L Chevrolet Silverado (1500, 2500HD, 3500HD). You will need access to a scan tool capable of doing this procedure to do this and clear any related trouble codes (Code P0315).