GM Genuine Parts 12597121 Engine Control Module
This essential component requires programming and/or specific setup procedures to function optimally. Refer to GM Service Information or an equivalent resource for detailed instructions and the specialized tools necessary to ensure proper installation and operation in your vehicle.
Features
- Vital System Control: This module dictates the performance of your vehicle’s critical systems, ensuring peak performance.
- GM-Recommended Replacement: Designed as a direct replacement for your GM vehicle’s original factory component, offering reliability and compatibility.
- Quality Manufacturing: Produced to meet GM OE specifications for fit, form, and function, guaranteeing a seamless integration into your vehicle.
Ensure your vehicle runs smoothly with the GM Genuine Parts 12597121 Engine Control Module.




Richard Ellis –
it works easy set up
Lately –
Have to be programmed could not use it