2002-2005 Pontiac Grand Am ecm ecu computer 12579661 **Tested** Transmission control module The part # is 12604791

The part # is 12604791

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2002-2005 Pontiac Grand Am ecm ecu computer 12579661 **Tested** Transmission control module The part # is 12604791Stock # 4C269 This is a good tested ecm or engine computer for a 2002 2005 Pontiac Grand Am. The part # is 12579661. It comes with a 90 day warranty. Make sure your part number matches before ordering. Computer may need to be reprogrammed to your vehicle.