"NEW" 2013-16 GM Engine computer 12653998 "Programmed to your VIN" ECM PCM ECU

This E.C.M. fits 2014-16 GM vehicles with service number 12653998. See list above for compatibility. This auction is for one service number 12653998 ECM (Engine control module) that is programmed for your vehicle using the latest software updates using your V.I.N. (Vehicle identification number) to exactly match your vehicle. After you purchase the E.C.M. you will need to provide us with your V.I.N so that we can program the E.C.M. before we ship it to you.This computer is brand new. There is no core charge you keep your old E.C.M. There is a one year replacement warranty. The vehicle may or may not start once the computer is installed.  If the vehicle does not start an antitheft password relearn procedure will have to be done.  Also, the vehicle may run for a period of time (weeks or months) and then will not start and may set a code P0633.  If this occurs the following procedure will have to be done so that the security password will be learned by the replacement ECM.  To avoid