This listing is for part number 12662677 ECM that is programmed/flashed for your vehicle with the newest updates from GM using your VIN to match your vehicle. After you purchase the ECM you will need to provide us with your VIN so we can program the ECM before we ship it to you. This computer is used and came from a salvaged vehicle. This computer will fit the service number (serv.no) 12662677Â
Upon installation if the vehicle does not start a theft relearn will need to be done using the GM programming system tis2web.
NOTICE: This is the responsibility of the end user. We sell engine computers programmed to your vehicles vin and the correct calibrations, it is the buyers responsibility to do the vehicle theft deterrent relearn, as well as any other relearns or setup procedures for example injector setup, crankshaft variation relearn etc.
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