GM Genuine Parts 12678511 Engine Control Module Assembly
Brand: General Motors


This part requires programming and/or special setup procedures. GM Service Information or equivalent describes the procedures and special tools needed to ensure proper operation in the vehicle.
Dictates the operation of your vehicle’s vital systems, which is critical to the performance of your vehicle
GM-recommended replacement part for your GM vehicle’s original factory component
Manufactured to GM OE specification for fit, form, and function